2.80" pulley, with or without Sur-Grip® 2.90" pulley, with or without Sur-Grip® 3.00" pulley, with or without Sur-Grip® 3.10" pulley, with or without Sur-Grip® 3.20" pulley, with or without Sur-Grip® TOP QUALITY! Telephone: 530-274-FUEL or 530-274-3835 Using the popular 6-71 supercharger, the chart below shows you how pulley size can effect the boost pressure of a given blower: 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. Description: 45.5 in. If you cannot decide which belt will work for your application, we suggest calling our tech Department. - download Drive Chart for 1/2" Pitch Pulleys - download Drive Ratio Chart for 8mm Pulleys - download Drive Ratio Chart for 13.9mm & 14mm Pulleys; Final Compression Ratio Chart This chart shows the final compression ratio combining the static compression ratio of an engine and the maximum blower boost from the blower system. If I swap top pulley to 2.86" I'll have a drive ratio of 2.10:1 and should be 7.2psi. Edelbrock 15822 E-Force Supercharger Pulley 3.0 in. These Pulleys fit most, including B&M, WEIAND, PSI, BDS, BOWERS, DYERS, SUPERCHARGER USA, HAMPTON, MOONEYHAM, SSI, and DETROIT DIESEL 71 series style blowers. Weiand's 177 Pro Street supercharger kits are engineered to give you a 25-40 percent gain in power - while maintaining outstanding streetability. weiand action +plus h/v water pump wm8209 suit for. A Roots-type blower pulls in air and compresses it in the engine’s cylinders. ... Weiand 6900 Supercharger to Manifold Gasket. 25 $14.72 $14.72. The blower I'm buying tomorrow is a weiand 144 with 10 rib and pulleys set up for 1.95:1 drive ratio so it should make 5.82psi as is. Locate your engine and belt style in the chart below. No clue how it relates to the Novi. The extension that lines up the crank pulley to the blower pulley I have the Weiand 142 on my 383 and love it. add to cart. or should i buy a weiand supercharger.. $405.13. The blower and crank pulleys were combined with a … weiand 8mm pitch supercharger pulley wm7109-59 gil. Dyers Blowers is one of the leading manufacturers of street strip superchargers. out … PULLEY-BELT CHART FROM THE BLOWER SHOPS CATALOG Thanks Centrifugal Blower Pulley OD/UD Calculator, blower overdrive calculator, blower underdrive calculator, pulley calculator Hand building billet Superchargers, The Blower Shop produces some of the best blowers in the business. This chart shows the static and effective compression ratio at various boost levels for both pump gas and race gas. Automotive $13.25 $ 13. The chart above is for a Weiand 6-71 blower with 8-mmpitch drive pulleys. The Weiand supercharger gave … Best i can get with a tablet camera. 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. Weiand developed the first ever aluminum intake manifold in 1937. I put VP112 in the car to keep from detonation. The main drawback to Roots-style superchargers is the consistency of the air charge. The stock crank pulley for the 6.1 is 6.44. $347.35. Pulley, Supercharger, Serpentine, Steel, Black, 6-Groove, 2.50 in. It illustrates how one pulley can be changed to achieve a specific blower speed. PULLEY-BELT CHART FROM THE BLOWER SHOPS CATALOG $376.10. Weiand 6-71 blower kit: 7482: Summit Racing: $3,009.95: Weiand blower pulley, 8mm pitch: 7109-XX: Summit Racing: 149.95 (and up) Holley 750-cfm … 4.9 out of 5 stars 5. Thirty years later Weiand developed complete blower drives for the GMC 6–71 supercharger. The aluminum is the original bracket, cut off. Plus (+) psi boost numbers (+2 psi, +5 psi etc) is a non scientific, inaccurate and confusing method of rating pulleys. Pulley, Supercharger, Serpentine, Aluminum, Black Powdercoated, Weiand 142/177, Each. This made finding a different size that would fit pretty easy. Weiand has 1 chart that I found for compression to boost ratio Is their another chart or is this the only one. I think thats the limit for 93 octane but maybe I can go up to 8psi with boost retard system and msd distributor. I traded for a new,never used, b/m 144 supercharger that i have installed in my 56'chevy.. Everything is fine,except the lower crank pulley is wobbling a little,,my problem is that although this supercharger was bought new in 1990,and b/m no longer sells superchargers, where should i look for parts,or replacement belt when it comes time to replace it?? $592.32. The center to center distance between the upper and lower blower pulley. Performance Trends Inc. The supplied kit featured the supercharger, mounting bracket assembly, and pulley combo. of a supercharger unit can be caused a number of ways and each of them has their early warning signs and specific way to be repaired. weiand 8mm pitch supercharger pulley wm7109-63 gil. Length - w/6 in. #ad #ad #ad To make more power you have to get more air to your engine. Performance Trends Blower Boost Calculator Type in the required information: These Pulleys to work with as a replacement for a majority of the Blower Systems manufactured today. There are 6 major types of failure that can strike a supercharger unit Growling, Clacking, Whistling, Gear Whine, Noise Increase from a smaller pulley, Noise and Vibration. These Pulleys to work with as a replacement for a majority of the Blower Systems manufactured today. Diameter, Chevy, Weiand, Holley, Each. Specializing in 6-71, 8-71, 10-71, and 14-71’s; The Blower Shop … The Weiand pulley in the box was a two piece with a spacer and a flat pulley. Hi! Kits are engineered to produce 10-12 lbs of boost on small blocks and 5-7 lbs of boost on big blocks but are a simple pulley change away from pump gas or hard core racing. All superchargers are built in Weiand's state-of-the-art manufacturing cell and each supercharger is 100% boost tested to help you squeeze out maximum power and efficiency. ... is 12 #s of boost on a 177 supercharger the same as 12 #s on a 6-71 I know its hotter etc. The chewed belt is from failed idler pulley attempt #2. Today, Weiand is still at the forefront of intake manifold and blower development as well as high flow water pumps. In addition, low-profile designs are also available to provide added hood clearance in tight engine compartments. Look to Weiand as your power source! Jackshaft / Cog / Impellor / Avg Boost 3.250" / 32 tooth = 44350 rpm / 6.74 psi (Stock Vortech setup) 3.250" / 28 tooth = 50686 rpm / 8.77 psi (Best ET setup) Drive Pulley - 10-Rib - Chevy S/B 144 Blower - Low Profile 90825 Pro-Street SuperCharger Serpentine Drive Belt Weiand View … add to cart. The angled piece is just angle iron, and the actual tensioner arm is a generic chrome Autozone part. 6 Rib Design For Use w/Stage 3 Professional Tuner System Black Anodized Finish E-Force Supercharger Pulley. I’ve swapped the balancer 3 times hoping I … I have a 383 in my 80 Camaro with a 177 Weiand blower. Hi, I’ve tried searching but have yet to find a solution. The speed at which the supercharger fills the cylinders depends on how quickly it is driven by a pulley and drive belt. Part Number: WND-90636 $3.00 shipping. Here's what various pulley combos did for my V3 setup. Producing Quality Computer Tools for Racers and Engine Builders since 1986. The chart will find a total teeth range for a specific belt length. add to cart. weiand action +plus h/v water pump wm8209p polishe. These Pulleys fit most, including B&M, WEIAND, PSI, BDS, BOWERS, DYERS, SUPERCHARGER USA, HAMPTON, MOONEYHAM, SSI, and DETROIT DIESEL 71 series style blowers. PULLEYS, RATIOS & BOOST – See chart for boost numbers. 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. My bottom drive pulley sticks out about 1/2” more than the top pulley causing it to run off on the bottom end. Part Number: WND-6791 Not Yet Reviewed At Kenne Bell, we prefer to also use “ratios” (crank pulley ÷ supercharger pulley = ratio) to describe a potential boost increase. Our supercharger pulleys are made from a single 6061 alloy aluminum billet, and turned to an accuracy within .001 of an inch. RBS Superchargers is a professional supercharger building and repair service that stocks new and used parts, blower kits and accessories. A FREE calculator that determines the Supercharger boost based on Displacements, Belt Ratio and Efficiencies. I put the 2.66 pulley on the blower with the 6 inch crank pulley. It’s a new build. 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 … RBS offers a trade in program on all blowers / superchargers. Welcome to Pulley Boys, your premier source for aftermarket high performance supercharger pulleys. 99: 100: 101: 102: 10: 3: 104: 105: 106: 107: 10: 8: 109: 110: 111: 112: 113: 114 115 116 117 118 Simply type in the name of your car in the search box to get started finding the correct pulley for your application.All of our aluminum pulleys are hard anodized 6061 … plification, you can think of a roots supercharger installation as removing the carb Weiand 142 Drive Ratio & Estimated Boost Chart (PSI). The supercharger has been a staple in drag racing since the sport began, from the first hot rods on the salt flats to the beginnings of Top Fuel racing. Pitch Chart The two most common types of superchargers in drag racing are the roots and screw blowers that can be seen sticking out of the hoods of different racecars in venues around the world. Do not use any Weiand supercharger with a toothed drive belt or a pop-off valve in any enclosed marine engine compartment! 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