Weiand 142 Supercharger Boost Chart, The Weiand 142 Supercharger’s moderate boost levels typically require modest timing adjustments compared to higher boost applications, but proper tuning remains crucial for optimal All WEIAND superchargers come equipped with the drive pulley best suited to produce a boost pressure of approximately 5 to 7 psi for most basic factory stock engines. 25 to 1 compression. It has a factory rating of 8. "Weiand Pro Street supercharger kits are engineered to give you a 25% to 40% gain in power - while maintaining outstanding streetability" On the Boost pressure production from the Weiand 142 Supercharger is directly related to engine RPM and the drive ratio between the crankshaft and supercharger pulleys. pdf), Text File (. Ignition timing should be set to factory specifications. Sounds awesome, I am highly considering a Weiand 142 mini-blower (stock legal version) for a stock 350 in my '86 K5 Blazer. Note that for most street applications WEIAND SUPERCHARGER TECHNICAL INFORMATION Supercharger Basics There are currently three basic types of superchargers being sold in the performance market today: the Roots type (all 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. 0:1 compression from the WEIAND SUPERCHARGER INSTALLATION INSTRUCTIONS PART A This set of instruction sheets applies to all WEIAND small block and big block Chevrolet supercharger installations. Weiand supercharger installation instructions for part A, providing guidance on setup and usage for optimal performance.

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