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      04-29-2014, 06:15 AM   #246
ASAP
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Drives: '23 X3 M40i
Join Date: Sep 2012
Location: FL

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Quote:
Originally Posted by RSXDC5
It will dyno about 395whp stock, multiply that by 1.18 to get you 466hp, the REAL stock hp. Adding another 125whp is entirely feasible with the JB4, a turbo back exhaust, and some good gas. That will then net you about 520whp, or 613hp. It's fairly simple when u just do the math.

Even if u guys want to low ball the power potential, say, +75whp with the mods listed above, that's still 470whp, or 554hp.

I can buy the 395 whp stock part but def not the +125 whp tuned part. No one knows how conservative or not conservative the turbos are pushed stock. Please do not use the N54 as a standard for everything, I can guarantee that engine is a near one off. The N54 ran 8 psi stock, at 18 it made ~ 420 whp. For what you said to be true... these turbos need to be the size of rb's to make that power. Bmw wouldnt not choose turbos that large as they would not have the responsiveness worthy of an m car.
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