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Expected Power Gain Formula

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Boost Calculations for M52B28 Motor and SC14 Supercharger

Supercharger Boost & Power Calculations

Here I will try to show the calculations and formulas used to get an rough estimation of expected boost from an Supercharger. The Formula can be applied to other setups and superchargers as well,

For this example We will be using the BMW 2800cc M52B28 engine as the basis the amount of boost expected from using the SC14 + 103mm Holden Pulley, To read more about pulley options for the SC14 please go read About the SC14 Supercharger Category.

And please skip to the bottom of the page if all the math below makes you dizzy, I originally modified and used this formula courtesy of the datsun1200 forums.

Note: This has served in conjunction with the FAQ section of the old site since 2015, now that we have our dedicated FAQ Section, its time to retire this as a simple post back on the blog. Last Updated – 4/29/2017

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V1 Supercharger Brackets Whiteprints for S52/M52/M54/M50TU

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Originally Tailored for the BMW E36 & E46 M3, 328i, 325i, 323i, 330i. The System was a tried and tested step stone and versatile enough for most 6 Cylinder M52x line of BMW motors with VANOS. It was a heavy rigged construction, one undoubtedly with racing conditions in mind and unrivaled in terms of being lite & offering long term durability, but not without its complexity of build. Due to the bracket replacing the whole OEM Power Steering Pump & Reservoir mounting bracket and incorporates it all in one easy to bolt together and easily revertible assembly; it retains all OEM Drive Accessories as the Alternator, AC and Power Steering in their original positions! This makes this design and all its successors of building a Supercharged BMW to be easily suited to not only a M52B28 But the M50TUB, M54B28, M54B30, and S52 US.

The Final Product:

White Prints:

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More About the SC14 Supercharger

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Updated 7/10/2016 – Information Dump & Archival.

Below are Notes of this Supercharger I have gathered from http://mr2.com/TEXT/SuperChargerInfo.html

It was an article supposedly posted on their old site and summarizes what was known in the 1990s. Now in the 2010’s many of this information may or may not be relevant apart from the blower and its nitty gritty specifications, use this as archival purposes and for anyone looking for more information. 🙂

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