Quote:
Originally Posted by Redbeard11
So I recently did a tranny swap from a m6 to a 4l80e with a 3200 stall. At the same time I also did some prc cnc heads milled .20. Originally with the m6 the car made 725 rwhp. On the same dyno with the new setup it made 640. Does this sound right? Do u lose that much thru an auto? Any comments welcome! Thanks
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That seems to be pretty darn close...maybe a little low. When estimating RWHP based off of crank HP, I typically go with 12% DL-loss on a manual and 22% on an auto. Others may feel differently.
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