Quote:
Originally Posted by ebirotedu
With the Dinan mods the graph shows 468 crank HP and 509 lb-ft of torque.
Dinan is using a 17% drivetrain loss correction factor to come up with that number looks like.
Without the mods they’re estimating 448hp and 450lb-ft torque at the crank.
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Trap speeds of 116mph in the 1/4 is certainly showing well over 400hp crank. Nearly 450ish is believable, this is a 3500lb car with less tire then a C7 Corvette and the Trap speeds are not far off.
Here is a 2017 Grand Sport test by C&D, 3.9 0-60 12.3@116 quarter mile
https://www.caranddriver.com/reviews...t-reliability/