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Old 09-26-2012, 12:01 AM   #24
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Join Date: Aug 2012
Location: SWEDEN
Posts: 41
My Ride: Bmw M3 E46
Originally Posted by BDUB328I View Post
i saw you have a 5 bar FPR along with upgraded fuel pump.....

it was my understanding that the stock m3 fuel pump was good for 5 bar... why the upgrade? just in case?

You need to add boost into the calculations, if we have 0,8bar of boost its 5bar+0,8bar, almost 6bar tot.

Pressure and flow is 2 diffrent things as well, and the stock fuel pump doesnt like to support fuel for 600+ crank horsepower.

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