GM Series 1 Style Supercharger Pulley Six Groove Pulley '92 - '96 Pontiac Bonneville, Oldsmobile Ninety Eight, Buick Park Avenue, Buick Riviera & more Stock pulley size for 92-93 is 2.55". Available in 2.7", 2.9", 3.0" 3.1" and 3.2". I did a smaller pulley on my M122 and then later had it ported. I'm wondering where the M122 and stock 60mm throttle body maxes out power wise on a 5.4 GT500? A lot of this info is/was on the Eaton website. There are too many variables in the combo. Available in 1.9", 2.0", 2.1", 2.2", 2.3", 2.4", 2.5", 2.6", 2.7", 2.8", 2.9", 3.0" pulley sizes. With this unported M122 with a 2.76" upper pulley stock lower setup I made 535 rwhp and as much as 550 rwhp SAE. The qwikchange kit is ideal if you want to swap pulleys fast and don't have the time to pull a pulley off and press fit a new one on, simply unscrew 4 screws, replace the pulley and screws, done! 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 Available in 2.5", 2.6", 2.7" and 2.8" pulley sizes. GM Performance Style Stage 2 Modular 2.8" Supercharger Pulley. Need an additional pulley for your qwikchange kit? The Eaton drive shaft uses a drive dog system not a spline to drive the pulley. Supercharger Performance Calculator This simulator may be used to evaluate Eaton Supercharger performance based on the specifications you enter below. (Please note that we're not an auto parts supplier and I can't respond to inquries … Continue reading "Eaton MP112 vs M90 Supercharger" For a better experience, please enable JavaScript in your browser before proceeding. After digging around a bit it seems that there was a bunch of Eaton m90, m112, and m122 swaps onto SBF's. I made 602 with a JLT 127, L&M 72 tb with a 2.65 upper and a 10%od lower. A Magnuson-modified Eaton unit is optimized toward a more specific operating range in terms of engine RPM than is the unmodified Eaton. Available in 2.4", 2.5", 2.6", 2.7", 2.8", 2.9", 3.0", 3.1", 3.2", and 3.3" pulley sizes. If you’re converting to an 8 rib belt system you will need a 8 rib supercharger pulley.There is no hard and fast rule for what size pulley will get you what boost (exactly). Click here to see a chart of sampled boost levels with different pulleys. Shop with confidence. UPDATE: February 4, 2021 A limited supply of original Lextreme parts are back in stock including the EGR Delete Kit, torque converter, 3/8" cat flange and supercharger fish bracket! By running the same 2.59-inch blower pulley on the TVS blower, the peak boost numbers jumped from 11.5 to 14.5 psi. The peak power jumped from 518 rwhp with the M122 … Changing up and going with a 2.6 upper with a 10% lower. For a manifold I plan to get a 6-71 style blower intake from Speedmaster AKA ProComp. The DIYs I have read were pretty poor in terms of pictures and were pretty vague in what is needed. Either unit is designed to operate over a wide range of RPM, of course, but if you were to drive the same Mustang, for example, while conducting an A-B comparison of the two superchargers, you’ll see a softer power curve over a slightly wider RPM range … Pulley Boys Eight Groove Keyed Pulley Fits '89-'95 Ford Thunderbird Super Coupe & Mercury XR7 Style Eaton M90 Supercharger KitPlease note 2.70" & smaller pulleys require custom snout machining for clearance. It's a roots type, and can be made to fit our engines by utilizing an adapter midp Eaton designs and manufactures precision Roots-type positive displacement superchargers for highly specific automotive applications. They claim a 12% efficiency one of the other on the stock to stock. Changing up and going with a 2.6 upper with a 10% lower. it was stock lower, stock m122 3" upper, stock manifolds, stock midpipes with all 4 cats, stock maf, this is JUST the m122 swap kit. Because it increases The problem is the M112 is so old that most of the data has since been removed. Find great deals on eBay for eaton 122. These no longer have a hex on the pulley nose. As with the M122 A custom titanium exhaust showcases the DOHC V8's sound. 2000-2002 Chevy Cavalier & Pontiac Sunfire. Supercharger Pulley Install Here's picture #1, The pulley cover has been removed by removing 1 nut and 2 screws. go to my thread, im about to update there THANKS SPOOLIN Fits Supercharged Chevy Cobalt SS & Saturn ION Redline. There is a general choice of 6% or 10% pulley drive upgrades, representing 25bhp/ftlb or 40bhp/ftlb improvements (at midrange – high rpm peak power rise for both is likely to be perhaps 12-15bhp). All rights reserved. Super charger use in performance vehicles provides power without perceived loss. Welcome to Pulley Boys, your premier source for aftermarket high performance supercharger pulleys. Who makes a 2.6 upper for the stock M122 Eaton now days? I looked on the VIP site, BPS site and Vans, all I see are 2.4 and 2.5 inch uppers. 2.8" Six Groove Modular Pulley Made from 6061 T6 billet aluminum. Please note 2.70" & smaller pulleys require custom snout machining for clearance. Email me at 607331914@pm.me which of these Lextreme parts you need. Who makes a 2.6 upper for the stock M122 Eaton now days? About same blower speed as my current 2.4 upper, stock lower. Need an additional pulley for your qwikchange kit and dont want to pay $149.95 again? When the 13's came out with new TVS I installed one and entered into a new world of fun. 0 bar (14. Stock size for 94-95 is 2.85". Fits Chevy Cobalt, Saturn Ion Redline, and LSJ 2.0L Ecotech Style Supercharged Engines. We recommend the 2.2" pulley for 92-93, and the 2.5" for 94-95.Click here to see a chart of sampled boost levels with different pulleys. About same blower speed as my current 2.4 upper, stock lower. It is generally accepted that a 10% blower speed increase on these cars gives about a 2.5psi boost pressure rise, which equates to 35-40bhp (with 40ftlb) improvement on a 400bhp car. Fits 1999+ Lightning, 2002+ Harley-Davidson Ford F-150, & 2003+ Ford Mustang Cobra. One 8 Groove Pulley for the Eaton M112 Style Qwikchange Pulley Kit. After that, you will need to remove the plastic tree plug or bolt from the snout. This setup made just over 16 psi all the way to redline. Eaton is a large and well-known manufacturer of superchargers, and provides specifications for its M90 series. Here you go. Metco. Table 1 - Boost versus pulley size summary for Eaton The peak power jumped from 518 rwhp with the M122 to an impressive 609 with the TVS. 2007+ Ford Shelby GT500 enthusiasts share information, maintenance, modifications and tech advice. By running the same 2.59-inch blower pulley on the TVS blower, the peak boost numbers jumped from 11.5 to 14.5 psi. Eaton Superchargers Model Number M24 M45 M62 M90 M112 M122 Displacement per revolution, Liters.393.737 1.016 1.475 1.835 2.000 Displacement per revolution, Cubic Inches 24 45 62 90 112 122 Sustained RPM 15,000 14,000 © 2010 - 2021 Pulleyboys.com. The early run cars have a bolt; the later A supercharger is an air pump bolted to the top of the engine, and driven by the engine's crankshaft. Aussiespeed supercharger snouts can be supplied with splined or dog style ends Hemi 6 Aussiespeed manifold being fitted with a Eaton M112 Pulley Upgrades Pulley upgrades can offer supercharger driven speed increases from 6% to 16%. Close JavaScript is disabled. M122 supercharger max boost. Estimating Boost versus Pulley Size There are formulas for estimating boost (described later) - here is a summary. Need another pulley of a different size for your qwikchange kit? Then with a POSI Performance port and a 4# lower setup it peaked at 20 psi and tapered to 18.5 at over 6500rpm. I am getting belt slip at times losing boost. I looked on the VIP site, BPS site and Vans, all I see are 2.4 and 2.5 inch uppers. Red colour is danger colour, boost greater than 6 psi. https://www.metcomotorsports.com/products.asp?cat=103, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Fits all GM Series II & III supercharged vehicle applications GM 3.8L V6 Supercharged Vehicle: Note: Pulley sizes 2.7" and smaller require clearance machining of the supercharger casting for fitment. Any dyno numbers would be great. Supercharger Pulley 1999-2004 Lightning, 2003-2004 Mustang Cobra Replace the original 3.60" (Cobra) or 2.93" (Lightning) supercharger pulley with one of our overdrive pulleys to add boost to your Cobra or Lightning truck.
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