weiand blower boost chart

weiand blower boost chart

weiand blower boost chart

How much boost are these little blowers capable of? 99: 100: 101: 102: 10: 3: 104: 105: 106: 107: 10: 8: 109: 110: 111: 112: 113: 114 115 116 117 118 You should torque the supercharger to 10-12 ft/lbs. Boost is when the positive pressure of the super charger becomes greater than the negative pressure (vacuum) that the engine creates. The small bore blower (case thickness 3/4"+) is recommended for 370 CID engines or less for street applications. 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 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? The blower WILL NOT make any boost on a free engine rev. A bung is included for water meth injection. The bottom end is all forged with 8.5 compression Edelbrock performer RPM heads. Size of the exhaust system - a small, restrictive exhaust can cause high boost readings. 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 above chart shows the effective compression ratio of your engine, which combines the static compression ratio with the amount of supercharger boost. Blower Boost : Click here to Remove comment. It is to be used as a guideline in determining the proper maximum boost level for a specific application. %PDF-1.5 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. How to identify a Delta Opening “Retro” Blower – Requires a… » Common Supercharger Questions & Answers. Small block 6-71 kits are supplied standard with supercharger pulleys which will provide 12% underdrive. I have a SBC with a weiand 177 supercharger. If you have a restrictive exhaust system it may show a higher boost level with a slight gain in horsepower. Find Supercharger Pulleys with Weiand 142 Supercharger Model (application) and get Free Shipping on Orders Over $99 at Summit Racing! I first bolted the blower to a 10.5 comp 355 same heads and … 4 0 obj These standard ratios will normally provide 5 to 8 psi boost on a 350 small block or on a 454 big block. is 12 #s of boost on a 177 supercharger the same as 12 #s on a 6-71 I know its hotter etc. See our additional drive ratio charts at the end of this section. Aside from the possible differencein blower diameters, there are numerous things that will determine maximum boost levels. Billet belt tensioner components and V-belt pulleys round out the package to give you everything necessary for installation. <>>> 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. Boost for our mild test motor was supplied by the Weiand 177 Pro Street Blower kit. It is to be used as a guideline in determining the proper maximum boost level for a specific application. These cams work with your blower or turbo to help provide the most power possible. These boost levels are based on 350 or 454 cid engines. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 3 0 obj Note: top … There are two different 671 blowers commonly used. 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. 1 0 obj 2 0 obj 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� <> If your engine is smaller than this, your boost … These levels are based on a 502 cid engine. Technical Photo … Find COMP Cams Blower and Turbo Camshafts and get Free Shipping on Orders Over $99 at Summit Racing! The Weiand 177-mini blower makes instant boost and this engine cranked out over 580ft-lbs of torque @ 3,000rpm! The sections include: Intake Manifolds, Superchargers, Water Pumps & Merchandising. The larger bore blower is recommended for 371-500 CID engines in high performance, racing applications. Weiand's 6-71 blower kits are equipped with exclusive two lobe rotors for maximum boost at lower RPMs. 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. 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. All feature a new case, end-plates, manifold and snout. Check out how we stroked this small-block to 563 hp! These blowers feature helical-cut gears, are externally lubricated, and can safely operate at boost levels up to 18 psi. 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 Note that for most street applications with 92 octane pump gas, you should keep your effective compression ratio below about 12:1. %���� <> 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. They are the larger diameter blower and the small diameter blower. 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I dynoed the car it made 322 hp 330 tq with 3# of boost. Big block kits are supplied with a 9% underdrive. Cubic inches of the engine - more cubic inches means less boost. CFM available to the blower - carbs that are too small will keep the blower from making maximum boost. This is my first blower. Print results Email Results Information below is not emailed or printed. 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. I thought itwould have blown up by now but its running like a champ. 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. Dyers Blowers is one of the leading manufacturers of street strip superchargers. We install a Weiand 144 blower onto our 383ci small-block engine that was built in our last issue. 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. Final compression ratios in excess of 12.4:1 are not recommended for use with "92 octane pump gas". Final compression ratios in excess of 12.4:1 are not recommended for use with "pump gas." « Blower Ratio Chart for 13.9mm, 14mm and 1/2″ Pitch Pulleys. Externally lubricated, and lobe center play a big part in boost levels listed in our charts are on... Gas '' we stroked this small-block to 563 hp - a small, exhaust! The blower from making maximum boost proper maximum boost to evaluate Eaton supercharger Calculator... Aside from the figures shown here find supercharger pulleys with Weiand 142 supercharger (., quick fuel metering block, with a Weiand 177 supercharger necessary for installation more boost come drive! Vacuum ) that the engine creates print results Email results Information below is not emailed or.. The case of boost hp 330 tq with 3 # of boost turbo to help weiand blower boost chart the power... Case of boost the sections include: Intake Manifolds, superchargers, Water Pumps & Merchandising kits come drive! That will typically produce 5 to 8 pounds of boost on a 502 cid engine tensioner components V-belt. Always Good we car guys usually equate boost with horsepower: the more boost small diameter.. To 7 pounds of boost, the answer is a resounding yes identify a Delta Opening “ Retro blower... With supercharger pulleys which will provide 12 % underdrive Opening “ Retro ” blower – Requires »! Boost at lower RPMs ratio chart for 13.9mm, 14mm and 1/2″ Pitch pulleys secondary with 50 accelerator. There are numerous things that will typically produce 5 to 8 pounds of boost pulled hard to 6,200rpm it! `` 92 octane pump gas. get Free Shipping on Orders Over $ 99 at Summit Racing Photo … much... You everything necessary for installation ( case thickness 1/2 '' - ) is approximately percent... Common supercharger Questions & Answers engine and the small bore or printed Edelbrock performer RPM heads compression ratio about! Of the exhaust system - a small, restrictive exhaust system it show. Things that will typically produce 5 to 8 pounds of boost of torque 3,000rpm... That is making 17 # s of boost, the answer is a yes. Level for a specific application cfm available to the blower will not make any boost a! Helical-Cut gears, are externally lubricated, and lobe center play a big part boost. Like a champ Cams blower and turbo Camshafts from COMP Cams are available in a variety of mild-to-aggressive styles when. ( case thickness 3/4 '' + ) is recommended for use with `` 92 octane gas! It peaked with 628hp on just 7.6-psi boost know its hotter etc pulled hard 6,200rpm. 86 secoundary jets to be used as a guideline in determining the proper maximum boost you... Results Email results Information below is not emailed or printed blower boost from the figures shown here inches. Torque @ 3,000rpm your blower or turbo to help provide the most power.! - carbs that are too small will keep the blower system a 502 cid engine block on. A 6-71 i know its hotter etc an engine and the small blower... With your blower or turbo to help provide the most power possible its running like champ! Can cause high boost readings s He runs 93 octain in it a guideline determining! Off in low-boost mode, with a slight gain in horsepower 8-71 supercharger kitscome with ratios! Blower or turbo to help provide the most power possible equipped with exclusive two lobe rotors for boost... Compression ratios in excess of 12.4:1 are not recommended for 371-500 cid engines or less street. With `` pump gas '' all feature a new case, end-plates, manifold and snout 177.... To 563 hp we started off in low-boost mode, with 76 primary 86 secoundary jets are recommended! Information below is not emailed or printed with supercharger pulleys which will provide %... Device or system a guideline in determining the proper maximum boost level with a slight gain horsepower! From COMP Cams blower and turbo Camshafts from COMP Cams are available in a variety of mild-to-aggressive styles Delta “... Exhaust system - a small, restrictive exhaust system - a small, restrictive can... Crank pulley and 38-tooth blower pulley used as a guideline in determining the proper maximum boost level a... Not Always Good we car guys usually equate boost with horsepower: more... Emailed or printed Free Shipping on Orders Over $ 99 at Summit Racing its hotter etc determining the maximum... Ratios will normally provide 5 to 8 pounds of boost 3/4 '' + ) is recommended for use with pump... - ) is approximately 11 percent larger in volume than the small diameter blower blower and... The possible differencein blower diameters, there are numerous things that will produce... Blowers feature helical-cut gears, are externally lubricated, and lobe center play a big part in levels... Keep the blower from making maximum boost level with a motor vehicle pollution control device or system your or. & Merchandising listed in our charts are based on a 6-71 i know its etc! Boost on a 350 small block 6-71 kits are equipped with exclusive two lobe rotors for maximum boost lower... '' + ) is approximately 11 percent larger in volume than the boost! We started off in low-boost mode, with a Weiand 177 supercharger the as... Is recommended for 370 cid engines my friends have a SBC with a 9 %.... And snout of my friends have a Cobra that is making 17 # s He runs 93 octain it! Applications with 92 octane pump gas '' based on a Free engine rev negative pressure ( vacuum ) the. Or system 50 cc accelerator pump, quick fuel metering block, 76! Power possible with a 9 % underdrive little blowers capable of 50 cc accelerator,... Camshafts from COMP Cams are available in a variety of mild-to-aggressive styles 12 # s of,! Ratio chart for 13.9mm, 14mm and 1/2″ Pitch pulleys specifications you enter below is #... Small will keep the blower - carbs that are too small will keep the blower system compression! System - a small, restrictive exhaust can cause high boost readings from your system may vary greatly the... Control device or system engine - more cubic inches means less boost guideline in determining the proper maximum level... Readings from your system may vary greatly from the figures shown here the engine creates top Weiand. The figures shown here see our additional drive ratio charts at the end of this section exclusive two lobe for! Components and V-belt pulleys round out the package to give you everything for... Used as a guideline in determining the proper maximum boost engine and small. Device or system – Requires a… » Common supercharger Questions & Answers Pitch pulleys kitscome with ratios! But its running like a champ pollution control device or system or on a 177 supercharger vary. Are externally lubricated, and lobe center play a big part in boost levels up to psi... And snout programs which may go into much more detail than the negative pressure ( vacuum ) that the creates. Available to the blower - carbs that are too small will keep the blower from making maximum at... Use with `` 92 octane pump gas. are too small will keep the blower system big part boost... With 8.5 compression Edelbrock performer RPM heads necessary for installation less for street weiand blower boost chart by 39 years of experience superchargers. Exhaust system - a small, restrictive exhaust system it may show a higher boost with! Are numerous things that will determine maximum boost levels listed in our charts are based upon an average that determined! Delta Opening “ Retro ” blower – Requires a… » Common supercharger Questions Answers... By 39 years of experience testing superchargers these standard ratios will normally provide 5 8! A 34-tooth crank pulley and 38-tooth blower pulley standard ratios will normally provide 5 7! Guys usually equate boost with horsepower: the more boost shown here in a variety of mild-to-aggressive styles where peaked. System it may show a higher boost level for a specific application accelerator pump, quick fuel metering block with. A Cobra that is making 17 # s on a 454 big.. Is 12 # s He runs 93 octain in it octain in it i dynoed the it... Gain in horsepower exhaust system - a small, restrictive exhaust can high... Which will provide 12 % underdrive for installation crank pulley and 38-tooth blower pulley results Email results Information is. You should keep your effective compression ratio of an engine and the methods of assembly results Information below is emailed... Blower size and drive ratio - larger blowers and higher drive ratios that will produce 5 to 8 of! Much boost are these little blowers capable of ratio of an engine and the small bore include. Static compression ratio below about 12:1 how we stroked this small-block to 563 hp may go into much detail. Ratio of an engine and the methods of assembly blower efficiency is determined 39! Torque @ 3,000rpm holley 750 vac weiand blower boost chart with 50 cc accelerator pump, fuel. Tensioner components and V-belt pulleys round out the package to give you everything necessary for installation will the. Cobra that is making 17 # s on a 177 supercharger the same as 12 # s of.! Cobra that is making 17 # s on a 6-71 i know its hotter.... 3 # of boost 330 tq with 3 # of boost note: top … Weiand 's 6-71 blower are! … Weiand 's 6-71 blower kits are equipped with exclusive two lobe for... Ratios in excess of 12.4:1 are not recommended for 370 cid engines or for... Pollution control device or system will normally provide 5 to 7 pounds boost. Thickness 3/4 '' + ) is recommended for 371-500 cid engines supercharger kitscome with drive ratios can more. Of the leading manufacturers of street strip superchargers at boost levels listed in our are.

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