V2 SC Belt Orientation Wrap Pulley Addon Upgrade for V1 Users

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For users of the V1 Design, a Minor Evolution of the Bracket System, This adds a secondary pulley and changes the belt orientation slightly, allow more tension to be put on as well as allow more belt grip and wrap around the SC and alternator pulleys, specially needed when using smaller pulleys to eliminate any belt slip, this should also increase the boost due to the factors above.

Image on the right is full scale copy of the template itself, which can be printed out to borderless A4 Paper, mind the dimensions.

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HMW M52 Prototype Supercharged BMW Setup in Action!!

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The much awaited HMW M52 Prototype Demonstration video, SC14 Roots Supercharged BMW Driving around Northland, New Zealand, To show case just how reliable and solid my DIY Supercharged Budget setup is even without any tunes.

4 PSI 103mm Pulley, #21.5 Stock Injectors, Stock DME, Stock MAF, M50 Manifold, No Tune.

Music – Black Sabbath song ‘Iron Man’, Instrumental variation performed by Deano Silk Music. Enjoy 🙂

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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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