Quote:
Originally Posted by JamesNoBrakes
I have a bridge to sell you. These days, engineering is pretty tightly controlled. I would not believe this unless reliable evidence proved it. BMWs making advertised "whp" is not exceeding the numbers, it's a way for them to be "stacked up" in tests against cars making less crank HP and always come out on top, which in of itself is pretty brilliant, but they aren't "exceeding" this. Very few times has this really been proven IME, lots of rumors, but unless testing is revealing figures that support the "much higher HP and TQ", it's just rumor.
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I remember being the first in my area with a Terminator. Car was "rated" or advertised at 390/390 crank.
Within a week I had it on a dyno before doing a pulley swap, and it put down something like 398/402 to the wheels bone stock. I think I still have old dyno sheets around here somewhere.