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Old 04-14-2021, 08:35 PM   #34
JSH


 
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Drives: '20 ZLE
Join Date: Jun 2020
Location: Mile High
Posts: 4,195
Quote:
Originally Posted by Z OH 6 View Post
Worse yet, 824whp isn't 1000bhp, its more like 950bhp. I think Hennessey is stretching those numbers a bit and rounding.
Of course this brings up the topic of the different correction factors that each shop uses in its dyno. The new SAE J2723 is actually not a new set of correction factors, it is simply a new procedure for using the existing factors (J1349 and J1995) used by automotive manufacturers.

My car was dyno'd in Houston in July with a DA of probably 2000-3000 ft., so you know Hennessey corrected it back to something close to a sea level DA in January or 29.92 in-Hg. Without knowing how each shop handles this with their Gen 6 dynos, we'll always be comparing apples and oranges.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
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