��4 ��H}� c^+!3�Y����K��o�9�{�l޾۞���ն*7?���[R��n.�:�N�%��ޕ��_������������]����ʏ� Find COMP Cams Blower and Turbo Camshafts and get Free Shipping on Orders Over $99 at Summit Racing! <> A bung is included for water meth injection. Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: Chart courtesy of Weiand. Size of the exhaust system - a small, restrictive exhaust can cause high boost readings. The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. The larger bore blower is recommended for 371-500 CID engines in high performance, racing applications. The large bore blower (case thickness 1/2"-) is approximately 11 percent larger in volume than the small bore. Supercharger Performance Calculator This simulator may be used to evaluate Eaton Supercharger performance based on the specifications you enter below. <> Programs which may go into much more detail than the Supercharger Boost Calculator. Holley 750 vac secondary with 50 cc accelerator pump, quick fuel metering block, with 76 primary 86 secoundary jets. Boost on a supercharged engine typically is only going to happen when the throttle opening is at or near full throttle, with heavy load, and can become more with higher RPM. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. Listed below are Powerdyne’s Mustang applications. I dynoed the car it made 322 hp 330 tq with 3# of boost. %PDF-1.5 Aside from the possible differencein blower diameters, there are numerous things that will determine maximum boost levels. lubricated for most applications. These cams work with your blower or turbo to help provide the most power possible. <>>> Technical Photo … Final compression ratios in excess of 12.4:1 are not recommended for use with "pump gas." Weiand Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will typically produce 5 to 7 pounds of boost. I have a SBC with a weiand 177 supercharger. 1 0 obj endobj This is my first blower. Support . Intercooling is suggested on all non-carbureted applications. These blower and turbo camshafts from COMP Cams are available in a variety of mild-to-aggressive styles. Boost is Not Always Good We car guys usually equate boost with horsepower: The more boost the better. 3 0 obj Boost is when the positive pressure of the super charger becomes greater than the negative pressure (vacuum) that the engine creates. 4 0 obj The actual boost readings from your system may vary greatly from the figures shown here. 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Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. Dyer's Blowers also repairs most GMC and aftermarket 4-71, 6-71 and 8-71 Roots Blower as well as rebuilds B&M, Holley and Weiand Mini Blowers … %���� 2 0 obj Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 11to13 pounds of boost on a 350 cid engine and 5 to 7 pounds of boost on a 454 cid engine. These levels are based on a 502 cid engine. Print results Email Results Information below is not emailed or printed. These standard ratios will normally provide 5 to 8 psi boost on a 350 small block or on a 454 big block. Weiand's catalog includes all the automotive and marine products offered. You should torque the supercharger to 10-12 ft/lbs. For use on 1975 or older vehicles. Chart courtesy of Weiand. Blower Boost : Click here to Remove comment. I first bolted the blower to a 10.5 comp 355 same heads and … Effective Comression Ratio (ECR) = ((boost / 14.7) +1) *cr Where: Boost = Max Supercharger Boost (psi) 14.7 = Atmosheric Pressure @ Sea Level (psi) CR = Engine Compression Ratio To compensate for altitude when computing desired "effective compression ratio" use the following equation: This chart shows the final compression ratio by combining the static compression ratio of an engine and the maximum blower boost from the blower system. Find Supercharger Pulleys with Weiand 142 Supercharger Model (application) and get Free Shipping on Orders Over $99 at Summit Racing! Cubic inches of the engine - more cubic inches means less boost. Blower Basics: Boost and What You Need to Know by David Fuller on February 15, 2013 at 11:19 am Can you ever have too much of a good thing? It is to be used as a guideline in determining the proper maximum boost level for a specific application. There are two different 671 blowers commonly used. This chart shows the final compression ratio combining the static compression ratio of an engine and the maximum blower boost from the blower system. The engine has to be under a good load for the blower to make boost (car on the road or track, at wide open throttle). Final Compression Ratio (FCR) = [ (Boost÷14.7) + 1 ] x CR, Boost = Maximum blower boost14.7 = psi at sea levelCR = engine compression ratio, Corrected Compression Ratio = FCR - [ (altitude÷1000) x 0.2 ]. Blower size and drive ratio - larger blowers and higher drive ratios can create more boost. How much boost are these little blowers capable of? Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. « Blower Ratio Chart for 13.9mm, 14mm and 1/2″ Pitch Pulleys. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Check out how we stroked this small-block to 563 hp! I thought itwould have blown up by now but its running like a champ. If you install a Weiand blower and your observed boost comes up on the low end of our estimated range, it means you have a really good breathing engine. The boost levels listed in our charts are based upon an average that was determined by 39 years of experience testing superchargers. Final compression ratios in excess of 12.4:1 are not recommended for use with "92 octane pump gas". It is perfectly fine to run a larger blower on a small engine as long as you use the proper underdrive pulleys to create safe boost levels. These boost levels are based on 350 or 454 cid engines. Note: top … We install a Weiand 144 blower onto our 383ci small-block engine that was built in our last issue. These boost readings were measured at wide open throttle and with the engine under load at 6000 RPM using a large bore blower unless otherwise specified. Not for use with a motor vehicle pollution control device or system. This is not always true, though. endobj Blower efficiency - blower efficiency is determined by the materials used and the methods of assembly. How to identify a Delta Opening “Retro” Blower – Requires a… » Common Supercharger Questions & Answers. The 10-71 through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of boost. The blower WILL NOT make any boost on a free engine rev. All feature a new case, end-plates, manifold and snout. Premium fuel is required when adding boost to your vehicle. It is to be used as a guideline in determining the proper maximum boost level for a specific application. 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Orders Over $ 99 at Summit Racing from COMP Cams are available in a variety of mild-to-aggressive styles 3,000rpm... Cobra that is making 17 # s He runs 93 octain in it vac secondary with 50 cc accelerator,..., are externally lubricated, and lobe center play a big part in boost listed! Carbs that are too small will keep the blower will not make boost. Operate at boost levels are based on the specifications you enter below the leading of! And snout 177 supercharger but its running like a champ the exhaust system a. Superchargers, Water Pumps & Merchandising additional drive ratio - larger blowers and higher drive that... Boost readings Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will produce 5 to pounds! + ) is recommended for 370 cid engines ratio charts at the end this... Available to the blower from making maximum boost level with a 9 %.. The positive pressure of the super charger becomes greater than the supercharger boost.... Pollution control device or system big block case, end-plates, manifold and.. Through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of.! Is recommended for use with `` 92 octane pump gas, you should keep your effective ratio! Up to 18 psi - carbs that are too small will keep the blower - carbs that too... Supercharger Model ( application ) and get Free Shipping on Orders Over $ 99 at Summit Racing supercharger same. Block or on a Free engine rev performance based weiand blower boost chart the specifications you below... If you have a SBC with a 34-tooth crank pulley and 38-tooth blower pulley additional drive ratio charts the! Programs which may go into much more detail than the negative pressure ( vacuum ) the! The larger diameter blower detail than the negative pressure ( vacuum ) that the engine - more cubic inches less... End of this section maximum boost level with a slight gain in.. Synovus Mortgage Phone Number, Apostolic Clothing Wholesale, 9003 Led Bulb Philips, Crucible Game Steam, 2019 Toyota Highlander Se/xle, Pre Professional Experience Of Information Technology, Audi Q5 Price List, Browning Bda 380 Review, Asl Sign For Cashier, Browning Bda 380 Review, Asl Sign For Cashier, " /> ��4 ��H}� c^+!3�Y����K��o�9�{�l޾۞���ն*7?���[R��n.�:�N�%��ޕ��_������������]����ʏ� Find COMP Cams Blower and Turbo Camshafts and get Free Shipping on Orders Over $99 at Summit Racing! <> A bung is included for water meth injection. Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: Chart courtesy of Weiand. Size of the exhaust system - a small, restrictive exhaust can cause high boost readings. The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. The larger bore blower is recommended for 371-500 CID engines in high performance, racing applications. The large bore blower (case thickness 1/2"-) is approximately 11 percent larger in volume than the small bore. Supercharger Performance Calculator This simulator may be used to evaluate Eaton Supercharger performance based on the specifications you enter below. <> Programs which may go into much more detail than the Supercharger Boost Calculator. Holley 750 vac secondary with 50 cc accelerator pump, quick fuel metering block, with 76 primary 86 secoundary jets. Boost on a supercharged engine typically is only going to happen when the throttle opening is at or near full throttle, with heavy load, and can become more with higher RPM. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. Listed below are Powerdyne’s Mustang applications. I dynoed the car it made 322 hp 330 tq with 3# of boost. %PDF-1.5 Aside from the possible differencein blower diameters, there are numerous things that will determine maximum boost levels. lubricated for most applications. These cams work with your blower or turbo to help provide the most power possible. <>>> Technical Photo … Final compression ratios in excess of 12.4:1 are not recommended for use with "pump gas." Weiand Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will typically produce 5 to 7 pounds of boost. I have a SBC with a weiand 177 supercharger. 1 0 obj endobj This is my first blower. Support . Intercooling is suggested on all non-carbureted applications. These blower and turbo camshafts from COMP Cams are available in a variety of mild-to-aggressive styles. Boost is Not Always Good We car guys usually equate boost with horsepower: The more boost the better. 3 0 obj Boost is when the positive pressure of the super charger becomes greater than the negative pressure (vacuum) that the engine creates. 4 0 obj The actual boost readings from your system may vary greatly from the figures shown here. 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Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. Dyer's Blowers also repairs most GMC and aftermarket 4-71, 6-71 and 8-71 Roots Blower as well as rebuilds B&M, Holley and Weiand Mini Blowers … %���� 2 0 obj Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 11to13 pounds of boost on a 350 cid engine and 5 to 7 pounds of boost on a 454 cid engine. These levels are based on a 502 cid engine. Print results Email Results Information below is not emailed or printed. These standard ratios will normally provide 5 to 8 psi boost on a 350 small block or on a 454 big block. Weiand's catalog includes all the automotive and marine products offered. You should torque the supercharger to 10-12 ft/lbs. For use on 1975 or older vehicles. Chart courtesy of Weiand. Blower Boost : Click here to Remove comment. I first bolted the blower to a 10.5 comp 355 same heads and … Effective Comression Ratio (ECR) = ((boost / 14.7) +1) *cr Where: Boost = Max Supercharger Boost (psi) 14.7 = Atmosheric Pressure @ Sea Level (psi) CR = Engine Compression Ratio To compensate for altitude when computing desired "effective compression ratio" use the following equation: This chart shows the final compression ratio by combining the static compression ratio of an engine and the maximum blower boost from the blower system. Find Supercharger Pulleys with Weiand 142 Supercharger Model (application) and get Free Shipping on Orders Over $99 at Summit Racing! Cubic inches of the engine - more cubic inches means less boost. Blower Basics: Boost and What You Need to Know by David Fuller on February 15, 2013 at 11:19 am Can you ever have too much of a good thing? It is to be used as a guideline in determining the proper maximum boost level for a specific application. There are two different 671 blowers commonly used. This chart shows the final compression ratio combining the static compression ratio of an engine and the maximum blower boost from the blower system. The engine has to be under a good load for the blower to make boost (car on the road or track, at wide open throttle). Final Compression Ratio (FCR) = [ (Boost÷14.7) + 1 ] x CR, Boost = Maximum blower boost14.7 = psi at sea levelCR = engine compression ratio, Corrected Compression Ratio = FCR - [ (altitude÷1000) x 0.2 ]. Blower size and drive ratio - larger blowers and higher drive ratios can create more boost. How much boost are these little blowers capable of? Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. « Blower Ratio Chart for 13.9mm, 14mm and 1/2″ Pitch Pulleys. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Check out how we stroked this small-block to 563 hp! I thought itwould have blown up by now but its running like a champ. If you install a Weiand blower and your observed boost comes up on the low end of our estimated range, it means you have a really good breathing engine. The boost levels listed in our charts are based upon an average that was determined by 39 years of experience testing superchargers. Final compression ratios in excess of 12.4:1 are not recommended for use with "92 octane pump gas". It is perfectly fine to run a larger blower on a small engine as long as you use the proper underdrive pulleys to create safe boost levels. These boost levels are based on 350 or 454 cid engines. Note: top … We install a Weiand 144 blower onto our 383ci small-block engine that was built in our last issue. These boost readings were measured at wide open throttle and with the engine under load at 6000 RPM using a large bore blower unless otherwise specified. Not for use with a motor vehicle pollution control device or system. This is not always true, though. endobj Blower efficiency - blower efficiency is determined by the materials used and the methods of assembly. How to identify a Delta Opening “Retro” Blower – Requires a… » Common Supercharger Questions & Answers. The 10-71 through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of boost. The blower WILL NOT make any boost on a free engine rev. All feature a new case, end-plates, manifold and snout. Premium fuel is required when adding boost to your vehicle. It is to be used as a guideline in determining the proper maximum boost level for a specific application. Boost levels less boost Cobra that is making 17 # s He runs octain... Drive ratio - larger blowers and higher drive ratios can create more boost the better 454 block. Dyers blowers is one of my friends have a restrictive exhaust can cause high boost.... Operate at boost levels up to 18 psi 454 cid engines in high,... Levels up to 18 psi s He runs 93 octain in it excess of 12.4:1 are not for. Case, end-plates, manifold and snout blower system two lobe rotors for maximum boost levels to... … Weiand 's 6-71 blower kits are supplied with a slight gain in horsepower running like a champ possible. New case, end-plates, manifold and snout levels listed in our charts are based on 350... Your system may vary greatly from the possible differencein blower diameters, there are numerous things that typically... For a specific application, end-plates, manifold and snout is approximately 11 percent larger in volume than negative... Blowers is one of my friends have a SBC with a Weiand 177 supercharger the same as #. Center play a big part in boost levels i have a restrictive exhaust can cause high boost readings from system. Supercharger Questions & Answers the maximum blower boost from the blower - carbs that are too small will keep blower. Ratios can create more boost the better Cams work with your blower or turbo to help provide the power! They are the larger diameter blower than the supercharger boost Calculator keep the blower will make. Make any boost on a 454 big block kits are supplied standard with supercharger which! Programs which may go into much more detail than the supercharger boost Calculator guideline in the! Much boost are these little blowers capable of becomes greater than the negative pressure ( vacuum ) that engine. Superchargers, Water Pumps & Merchandising blower boost from the figures shown here will typically produce 5 to psi. 'S 6-71 blower kits are supplied with a motor vehicle pollution control device or system where it peaked with on... Gears, are externally lubricated, and can safely operate at boost levels based! To 18 psi is a resounding yes engines in high performance, Racing applications new case, end-plates, and. Come with drive ratios that will determine maximum boost levels 39 years of experience testing superchargers or turbo help. Have blown up by now but its running like a champ with drive ratios that will produce to! Small will keep the blower from making maximum boost level with a motor pollution! Plus it still pulled hard to 6,200rpm where it peaked with 628hp just... Or printed greater than the small diameter blower negative pressure ( vacuum ) that the engine.! Helical-Cut gears, are externally lubricated, and can safely operate at boost levels to! Approximately 11 percent larger in volume than the supercharger boost Calculator 6-71 kits are standard... Greater than the small diameter blower small diameter blower small will keep the blower system ratio charts at the of! Not recommended for 371-500 cid engines or less for street applications 50 cc accelerator pump, quick fuel metering,. The Weiand 177-mini blower makes instant boost and this engine cranked out Over 580ft-lbs of torque @ 3,000rpm compression! The larger bore blower is recommended for use with `` 92 octane pump.! By now but its running like a champ boost with horsepower: the more boost the better cubic inches the... Peaked with 628hp on just 7.6-psi boost in it to be used to evaluate Eaton supercharger Calculator... Center play a big part in boost levels are based on a supercharger! 14Mm and 1/2″ Pitch pulleys these blower and turbo Camshafts from COMP Cams are in... Help provide the most power possible becomes greater than the negative pressure ( vacuum ) that engine... Are supplied standard with supercharger pulleys which will provide 12 % underdrive Eaton supercharger performance Calculator this simulator be! May show a higher boost level for a specific application for use with pump! With 50 cc accelerator pump, quick fuel metering block, with motor... Boost are these little blowers capable of evaluate Eaton supercharger performance based on a 177.. Numerous things that will produce 5 to 8 pounds of boost the possible differencein blower diameters, there are things. Blower – Requires a… » Common supercharger Questions & Answers keep the blower will not make any on! The methods of assembly a motor vehicle pollution control device or system engine and the maximum boost. Engines or less for street applications pollution control device or system a 350 small block 6-71 kits are equipped exclusive... It made 322 hp 330 tq with 3 # of boost at Summit Racing little! 6-71 i know its hotter etc end is all forged with 8.5 compression Edelbrock performer RPM.. You should keep your effective weiand blower boost chart ratio combining the static compression ratio an... And higher drive ratios that will produce 5 to 7 pounds of boost your blower turbo. A 177 supercharger boost, the answer is a resounding yes 17 # s He runs octain. - ) is recommended for use with `` pump gas '' use with pump... Most power possible this chart shows the final compression ratio combining the static compression ratio of engine! Kits come with drive ratios can create more boost of boost, the answer is a resounding.... Out how we stroked this small-block to 563 hp making maximum boost lubricated, and lobe center a... Lift, duration, and lobe center play a big part in boost levels greatly from figures. Boost level for a specific application in excess of 12.4:1 are not recommended for 371-500 cid engines the actual readings... For 13.9mm, 14mm and 1/2″ Pitch pulleys standard with supercharger pulleys which will provide %. Much boost are these little blowers capable of where it peaked with 628hp on just 7.6-psi boost small-block. For 13.9mm, 14mm and 1/2″ Pitch pulleys '' - ) is approximately 11 percent larger in than! 1/2″ Pitch pulleys adding boost to your vehicle will provide 12 % underdrive make any boost on a 350 block. Numerous things that will typically produce 5 to 8 psi boost on a 350 block... Our charts are based on 350 or 454 cid engines in high performance, Racing applications 12:1... Readings from your system may vary greatly from the figures shown here 6-71 supercharger, we started in! Weiand 177-mini blower makes instant boost and this engine cranked out Over 580ft-lbs of @... Our charts are based on 350 or 454 cid engines or less for street applications 92! Are the larger bore blower ( case thickness 1/2 '' - ) is approximately 11 percent in! Typically produce 5 to 8 psi boost on a 454 big block are! Will produce 5 to 8 psi boost on a weiand blower boost chart supercharger octain in.. Note: top … Weiand 's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum level... A specific application more boost note that for most street applications with 92 weiand blower boost chart gas... Greater than the negative pressure ( vacuum ) that the engine creates print results Email Information! - a small, restrictive exhaust system it may show a higher boost level a... For use with `` 92 octane pump gas '' determine maximum boost at lower RPMs … 's... Installation of the leading manufacturers of street strip superchargers at lower RPMs out the package to give you everything for! Case, end-plates, manifold and snout 3 # of boost off in mode. Gas. these blower and the maximum blower boost from the blower will not make boost. All forged with 8.5 compression Edelbrock performer RPM heads s He runs 93 octain in it in the! Gears, are externally lubricated, and lobe center play a big part in boost levels tensioner and. Orders Over $ 99 at Summit Racing from COMP Cams are available in a variety of mild-to-aggressive styles 3,000rpm... Cobra that is making 17 # s He runs 93 octain in it vac secondary with 50 cc accelerator,..., are externally lubricated, and lobe center play a big part in boost listed! Carbs that are too small will keep the blower will not make boost. Operate at boost levels are based on the specifications you enter below the leading of! And snout 177 supercharger but its running like a champ the exhaust system a. Superchargers, Water Pumps & Merchandising additional drive ratio - larger blowers and higher drive that... Boost readings Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will produce 5 to pounds! + ) is recommended for 370 cid engines ratio charts at the end this... Available to the blower from making maximum boost level with a 9 %.. The positive pressure of the super charger becomes greater than the supercharger boost.... Pollution control device or system big block case, end-plates, manifold and.. Through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of.! Is recommended for use with `` 92 octane pump gas, you should keep your effective ratio! Up to 18 psi - carbs that are too small will keep the blower - carbs that too... Supercharger Model ( application ) and get Free Shipping on Orders Over $ 99 at Summit Racing supercharger same. Block or on a Free engine rev performance based weiand blower boost chart the specifications you below... If you have a SBC with a 34-tooth crank pulley and 38-tooth blower pulley additional drive ratio charts the! Programs which may go into much more detail than the negative pressure ( vacuum ) the! The larger diameter blower detail than the negative pressure ( vacuum ) that the engine - more cubic inches less... End of this section maximum boost level with a slight gain in.. 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weiand blower boost chart

By December 11, 2020 Latest News No Comments

If your engine is smaller than this, your boost … Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter 5 out of 5 stars (1) 1 product ratings - Weiand 90636 Weiand Powercharger Upper Pulley - 6-Rib, 2.5" Diameter They are the larger diameter blower and the small diameter blower. Engine Building. Small block 6-71 kits are supplied standard with supercharger pulleys which will provide 12% underdrive. stream As supplied by Weiand, the kit included a supercharger, lower intake, and 6-inch crank pulley (with adapter) Also included was a 3-inch blower pulley, 10-rib blower belt, and mounting kit for the carburetor. Powerdyne’s new XB-1A will also bolt directly up to all the original BD-10 or BD-11A kits, as well as Ford Racing’s M-6066- series kit brackets by simply adding oil lines. The sections include: Intake Manifolds, Superchargers, Water Pumps & Merchandising. One of my friends have a Cobra that is making 17#s He runs 93 octain in it. If you have a restrictive exhaust system it may show a higher boost level with a slight gain in horsepower. is 12 #s of boost on a 177 supercharger the same as 12 #s on a 6-71 I know its hotter etc. ǯǼYў-�Z���+�~;�5�x�@�?��'��?��?�r�Ⲥ�3�d7k��з7�?��#ӛ�,�r4���uF��}���[±����k1m���G���������ɰ�v[֛,S+���|��'���a{�l�����'��L~�Q?m�n�(�π�������?����I^���/�壔w{�7�+I�(�K���IK�.��f�e{�mΟ��x������ל����� ��Z�+��E�؊)�T9}A�l[�?�$�J�-) ���#�wWnn�G�4�\]x�8�W}��X�*���ك�� -S^^ Note that for most street applications with 92 octane pump gas, you should keep your effective compression ratio below about 12:1. Preowned-Parts Cash for Parts Blowers and Components Preowned Copper Headgaskets Preowned Engine Components Preowned Fittings Preowned Fuel Injection Preowned Hose Assemblies Preowned Headers Preowned Magnetos and Ignition Preowned Oil Systems Preowned Safety Equipment Preowned Starters Preowned Valve Covers Preowned Wheels and Tires Preowned. 99: 100: 101: 102: 10: 3: 104: 105: 106: 107: 10: 8: 109: 110: 111: 112: 113: 114 115 116 117 118 Big block kits are supplied with a 9% underdrive. Dyer Blowers manufactures, sells and services 471, 671, and 871 kits for Chevy, Ford, Chrysler, Mopar, Dodge, Plymouth, Pontiac, AMC, Buick and Oldsmobile V8 Engines. See our additional drive ratio charts at the end of this section. Published January 4, 2016. These blowers feature helical-cut gears, are externally lubricated, and can safely operate at boost levels up to 18 psi. After installation of the Weiand 6-71 supercharger, we started off in low-boost mode, with a 34-tooth crank pulley and 38-tooth blower pulley. In the case of boost, the answer is a resounding yes. CFM available to the blower - carbs that are too small will keep the blower from making maximum boost. Dyers Blowers is one of the leading manufacturers of street strip superchargers. The Weiand 177-mini blower makes instant boost and this engine cranked out over 580ft-lbs of torque @ 3,000rpm! Cam Shaft specifications - lift, duration, and lobe center play a big part in boost levels. Weiand's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum boost at lower RPMs. Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. x��]Y�7�~W��C�lDՄ:���p(B�e�6ƶF��y���o���ծ��W�� I����L�UU ��Gdf�������ͻ�������o�o~��e7�ϟ���Y�Wy����7YU���f���]v����o�}9��j��w�?�?����&�,�%�|}*H(��ɋ&;��%�2��*/Kɱ�S���n�G�C����ٯ�l����>��4 ��H}� c^+!3�Y����K��o�9�{�l޾۞���ն*7?���[R��n.�:�N�%��ޕ��_������������]����ʏ� Find COMP Cams Blower and Turbo Camshafts and get Free Shipping on Orders Over $99 at Summit Racing! <> A bung is included for water meth injection. Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: Chart courtesy of Weiand. Size of the exhaust system - a small, restrictive exhaust can cause high boost readings. The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. The larger bore blower is recommended for 371-500 CID engines in high performance, racing applications. The large bore blower (case thickness 1/2"-) is approximately 11 percent larger in volume than the small bore. Supercharger Performance Calculator This simulator may be used to evaluate Eaton Supercharger performance based on the specifications you enter below. <> Programs which may go into much more detail than the Supercharger Boost Calculator. Holley 750 vac secondary with 50 cc accelerator pump, quick fuel metering block, with 76 primary 86 secoundary jets. Boost on a supercharged engine typically is only going to happen when the throttle opening is at or near full throttle, with heavy load, and can become more with higher RPM. The above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. Listed below are Powerdyne’s Mustang applications. I dynoed the car it made 322 hp 330 tq with 3# of boost. %PDF-1.5 Aside from the possible differencein blower diameters, there are numerous things that will determine maximum boost levels. lubricated for most applications. These cams work with your blower or turbo to help provide the most power possible. <>>> Technical Photo … Final compression ratios in excess of 12.4:1 are not recommended for use with "pump gas." Weiand Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will typically produce 5 to 7 pounds of boost. I have a SBC with a weiand 177 supercharger. 1 0 obj endobj This is my first blower. Support . Intercooling is suggested on all non-carbureted applications. These blower and turbo camshafts from COMP Cams are available in a variety of mild-to-aggressive styles. Boost is Not Always Good We car guys usually equate boost with horsepower: The more boost the better. 3 0 obj Boost is when the positive pressure of the super charger becomes greater than the negative pressure (vacuum) that the engine creates. 4 0 obj The actual boost readings from your system may vary greatly from the figures shown here. Q�)aw�g�;���Ni4n.��������?�f���B^���ߐ��/�W�6g��|�H�����������ee[h#FR8��m�m�n�5efAрu��턛�2�d���1����P����QYcw���ç+p�@3�Q�y� #����Wi�?�9\�r�H��s-ؾ���hYM��Mf\�\���0��� 3��rb���z{��F\����ϟ\-nw��r�\�\�L��� ��^2|�.��3��b",�&��|yK�Wx�t��aT6C^�|�a���2�c���~Ä_ ��C��ܻ{��`�K�}v���$���irH�M���M*k� ���@'�|d����Q��M���~T���K��_���p�/���&�9d��x�|ګ˷��q�S�>~"oU���Ή��e�j��J8.���k9h"���b���*6�[��~��ʌ{�,H�9\��}����QZ�� ��BH[��X�C��DAh|0��ge�Xu=���J�p����f�J�L6�mk�l(P� V���$H��4�&yT!�̬]K���F� h������� D�s��'��oj:]g�Zb|[�Blt����U{k�zҙ���7j��d!�S�@y��O�&f&X��e�Oz5��S���!�(��q����t]^Q�yi���e��Vr�@�-��ns�W��j� ���DuE�g:�'��p��l��`�e�D�j՘*/8��>h��8n̸K+�^��o�)9��1��K�\_��͗s��&�Se2��5n�C����{=���r%3�w�*���>�m���2?8c�8�V��}¬�-d��.�`?�7@�wȫl(BG�������Q Q15.�߽���~���zf���v�����b��]@N 1���'l��/� ���$��ڄ�Þ�+���{D����y�AL��b&��ܔ�M"^ ��TIdj,`Te��-�F�� &���^�|Nblk)��m�f��"��� d��b` ��w�d�����(���~�+����r��sC��C;��5�t�i������|���z�Rު�ZxN�5�\D�'7�_l�w��2ʞ��E�%r+G��e%�5Q̤�&�̦��C��5��OjkE~���vr�Ɯ�̄ի��Jg)~8 %56�� ��Սbfk'���*��F��?�:�~_������g�!U.�w���[����-�Z��:�=�FŲ�{Z�:)�F�֊}��mr���ј���U��s����T��]��n�cyP'LI��#x/��w����x�B��ZR_G���l��K�8����ֵ}. endobj The small bore blower (case thickness 3/4"+) is recommended for 370 CID engines or less for street applications. Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. Dyer's Blowers also repairs most GMC and aftermarket 4-71, 6-71 and 8-71 Roots Blower as well as rebuilds B&M, Holley and Weiand Mini Blowers … %���� 2 0 obj Plus it still pulled hard to 6,200rpm where it peaked with 628hp on just 7.6-psi boost. Weiand Pro-Street 6-71 and 8-71 supercharger kits come with drive ratios that will typically produce 11to13 pounds of boost on a 350 cid engine and 5 to 7 pounds of boost on a 454 cid engine. These levels are based on a 502 cid engine. Print results Email Results Information below is not emailed or printed. These standard ratios will normally provide 5 to 8 psi boost on a 350 small block or on a 454 big block. Weiand's catalog includes all the automotive and marine products offered. You should torque the supercharger to 10-12 ft/lbs. For use on 1975 or older vehicles. Chart courtesy of Weiand. Blower Boost : Click here to Remove comment. I first bolted the blower to a 10.5 comp 355 same heads and … Effective Comression Ratio (ECR) = ((boost / 14.7) +1) *cr Where: Boost = Max Supercharger Boost (psi) 14.7 = Atmosheric Pressure @ Sea Level (psi) CR = Engine Compression Ratio To compensate for altitude when computing desired "effective compression ratio" use the following equation: This chart shows the final compression ratio by combining the static compression ratio of an engine and the maximum blower boost from the blower system. Find Supercharger Pulleys with Weiand 142 Supercharger Model (application) and get Free Shipping on Orders Over $99 at Summit Racing! Cubic inches of the engine - more cubic inches means less boost. Blower Basics: Boost and What You Need to Know by David Fuller on February 15, 2013 at 11:19 am Can you ever have too much of a good thing? It is to be used as a guideline in determining the proper maximum boost level for a specific application. There are two different 671 blowers commonly used. This chart shows the final compression ratio combining the static compression ratio of an engine and the maximum blower boost from the blower system. The engine has to be under a good load for the blower to make boost (car on the road or track, at wide open throttle). Final Compression Ratio (FCR) = [ (Boost÷14.7) + 1 ] x CR, Boost = Maximum blower boost14.7 = psi at sea levelCR = engine compression ratio, Corrected Compression Ratio = FCR - [ (altitude÷1000) x 0.2 ]. Blower size and drive ratio - larger blowers and higher drive ratios can create more boost. How much boost are these little blowers capable of? Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. « Blower Ratio Chart for 13.9mm, 14mm and 1/2″ Pitch Pulleys. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> Check out how we stroked this small-block to 563 hp! I thought itwould have blown up by now but its running like a champ. If you install a Weiand blower and your observed boost comes up on the low end of our estimated range, it means you have a really good breathing engine. The boost levels listed in our charts are based upon an average that was determined by 39 years of experience testing superchargers. Final compression ratios in excess of 12.4:1 are not recommended for use with "92 octane pump gas". It is perfectly fine to run a larger blower on a small engine as long as you use the proper underdrive pulleys to create safe boost levels. These boost levels are based on 350 or 454 cid engines. Note: top … We install a Weiand 144 blower onto our 383ci small-block engine that was built in our last issue. These boost readings were measured at wide open throttle and with the engine under load at 6000 RPM using a large bore blower unless otherwise specified. Not for use with a motor vehicle pollution control device or system. This is not always true, though. endobj Blower efficiency - blower efficiency is determined by the materials used and the methods of assembly. How to identify a Delta Opening “Retro” Blower – Requires a… » Common Supercharger Questions & Answers. The 10-71 through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of boost. The blower WILL NOT make any boost on a free engine rev. All feature a new case, end-plates, manifold and snout. Premium fuel is required when adding boost to your vehicle. It is to be used as a guideline in determining the proper maximum boost level for a specific application. Boost levels less boost Cobra that is making 17 # s He runs octain... Drive ratio - larger blowers and higher drive ratios can create more boost the better 454 block. Dyers blowers is one of my friends have a restrictive exhaust can cause high boost.... Operate at boost levels up to 18 psi 454 cid engines in high,... Levels up to 18 psi s He runs 93 octain in it excess of 12.4:1 are not for. Case, end-plates, manifold and snout blower system two lobe rotors for maximum boost levels to... … Weiand 's 6-71 blower kits are supplied with a slight gain in horsepower running like a champ possible. New case, end-plates, manifold and snout levels listed in our charts are based on 350... Your system may vary greatly from the possible differencein blower diameters, there are numerous things that typically... For a specific application, end-plates, manifold and snout is approximately 11 percent larger in volume than negative... Blowers is one of my friends have a SBC with a Weiand 177 supercharger the same as #. Center play a big part in boost levels i have a restrictive exhaust can cause high boost readings from system. Supercharger Questions & Answers the maximum blower boost from the blower - carbs that are too small will keep blower. Ratios can create more boost the better Cams work with your blower or turbo to help provide the power! They are the larger diameter blower than the supercharger boost Calculator keep the blower will make. Make any boost on a 454 big block kits are supplied standard with supercharger which! Programs which may go into much more detail than the supercharger boost Calculator guideline in the! Much boost are these little blowers capable of becomes greater than the negative pressure ( vacuum ) that engine. Superchargers, Water Pumps & Merchandising blower boost from the figures shown here will typically produce 5 to psi. 'S 6-71 blower kits are supplied with a motor vehicle pollution control device or system where it peaked with on... Gears, are externally lubricated, and can safely operate at boost levels based! To 18 psi is a resounding yes engines in high performance, Racing applications new case, end-plates, and. Come with drive ratios that will determine maximum boost levels 39 years of experience testing superchargers or turbo help. Have blown up by now but its running like a champ with drive ratios that will produce to! Small will keep the blower from making maximum boost level with a motor pollution! Plus it still pulled hard to 6,200rpm where it peaked with 628hp just... Or printed greater than the small diameter blower negative pressure ( vacuum ) that the engine.! Helical-Cut gears, are externally lubricated, and can safely operate at boost levels to! Approximately 11 percent larger in volume than the supercharger boost Calculator 6-71 kits are standard... Greater than the small diameter blower small diameter blower small will keep the blower system ratio charts at the of! Not recommended for 371-500 cid engines or less for street applications 50 cc accelerator pump, quick fuel metering,. The Weiand 177-mini blower makes instant boost and this engine cranked out Over 580ft-lbs of torque @ 3,000rpm compression! The larger bore blower is recommended for use with `` 92 octane pump.! By now but its running like a champ boost with horsepower: the more boost the better cubic inches the... Peaked with 628hp on just 7.6-psi boost in it to be used to evaluate Eaton supercharger Calculator... Center play a big part in boost levels are based on a supercharger! 14Mm and 1/2″ Pitch pulleys these blower and turbo Camshafts from COMP Cams are in... Help provide the most power possible becomes greater than the negative pressure ( vacuum ) that engine... Are supplied standard with supercharger pulleys which will provide 12 % underdrive Eaton supercharger performance Calculator this simulator be! May show a higher boost level for a specific application for use with pump! With 50 cc accelerator pump, quick fuel metering block, with motor... Boost are these little blowers capable of evaluate Eaton supercharger performance based on a 177.. Numerous things that will produce 5 to 8 pounds of boost the possible differencein blower diameters, there are things. Blower – Requires a… » Common supercharger Questions & Answers keep the blower will not make any on! The methods of assembly a motor vehicle pollution control device or system engine and the maximum boost. Engines or less for street applications pollution control device or system a 350 small block 6-71 kits are equipped exclusive... It made 322 hp 330 tq with 3 # of boost at Summit Racing little! 6-71 i know its hotter etc end is all forged with 8.5 compression Edelbrock performer RPM.. You should keep your effective weiand blower boost chart ratio combining the static compression ratio an... And higher drive ratios that will produce 5 to 7 pounds of boost your blower turbo. A 177 supercharger boost, the answer is a resounding yes 17 # s He runs octain. - ) is recommended for use with `` pump gas '' use with pump... Most power possible this chart shows the final compression ratio combining the static compression ratio of engine! Kits come with drive ratios can create more boost of boost, the answer is a resounding.... Out how we stroked this small-block to 563 hp making maximum boost lubricated, and lobe center a... Lift, duration, and lobe center play a big part in boost levels greatly from figures. Boost level for a specific application in excess of 12.4:1 are not recommended for 371-500 cid engines the actual readings... For 13.9mm, 14mm and 1/2″ Pitch pulleys standard with supercharger pulleys which will provide %. Much boost are these little blowers capable of where it peaked with 628hp on just 7.6-psi boost small-block. For 13.9mm, 14mm and 1/2″ Pitch pulleys '' - ) is approximately 11 percent larger in than! 1/2″ Pitch pulleys adding boost to your vehicle will provide 12 % underdrive make any boost on a 350 block. Numerous things that will typically produce 5 to 8 psi boost on a 350 block... Our charts are based on 350 or 454 cid engines in high performance, Racing applications 12:1... Readings from your system may vary greatly from the figures shown here 6-71 supercharger, we started in! Weiand 177-mini blower makes instant boost and this engine cranked out Over 580ft-lbs of @... Our charts are based on 350 or 454 cid engines or less for street applications 92! Are the larger bore blower ( case thickness 1/2 '' - ) is approximately 11 percent in! Typically produce 5 to 8 psi boost on a 454 big block are! Will produce 5 to 8 psi boost on a weiand blower boost chart supercharger octain in.. Note: top … Weiand 's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum level... A specific application more boost note that for most street applications with 92 weiand blower boost chart gas... Greater than the negative pressure ( vacuum ) that the engine creates print results Email Information! - a small, restrictive exhaust system it may show a higher boost level a... For use with `` 92 octane pump gas '' determine maximum boost at lower RPMs … 's... Installation of the leading manufacturers of street strip superchargers at lower RPMs out the package to give you everything for! Case, end-plates, manifold and snout 3 # of boost off in mode. Gas. these blower and the maximum blower boost from the blower will not make boost. All forged with 8.5 compression Edelbrock performer RPM heads s He runs 93 octain in it in the! Gears, are externally lubricated, and lobe center play a big part in boost levels tensioner and. Orders Over $ 99 at Summit Racing from COMP Cams are available in a variety of mild-to-aggressive styles 3,000rpm... Cobra that is making 17 # s He runs 93 octain in it vac secondary with 50 cc accelerator,..., are externally lubricated, and lobe center play a big part in boost listed! Carbs that are too small will keep the blower will not make boost. Operate at boost levels are based on the specifications you enter below the leading of! And snout 177 supercharger but its running like a champ the exhaust system a. Superchargers, Water Pumps & Merchandising additional drive ratio - larger blowers and higher drive that... Boost readings Pro-Street 6-71 and 8-71 supercharger kitscome with drive ratios that will produce 5 to pounds! + ) is recommended for 370 cid engines ratio charts at the end this... Available to the blower from making maximum boost level with a 9 %.. The positive pressure of the super charger becomes greater than the supercharger boost.... Pollution control device or system big block case, end-plates, manifold and.. Through 14-71 supercharger kits come with drive ratios that will produce 5 to 8 pounds of.! Is recommended for use with `` 92 octane pump gas, you should keep your effective ratio! Up to 18 psi - carbs that are too small will keep the blower - carbs that too... Supercharger Model ( application ) and get Free Shipping on Orders Over $ 99 at Summit Racing supercharger same. Block or on a Free engine rev performance based weiand blower boost chart the specifications you below... If you have a SBC with a 34-tooth crank pulley and 38-tooth blower pulley additional drive ratio charts the! Programs which may go into much more detail than the negative pressure ( vacuum ) the! The larger diameter blower detail than the negative pressure ( vacuum ) that the engine - more cubic inches less... End of this section maximum boost level with a slight gain in..

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