LT4 dyno numbers from today
07-19-2003, 04:29 PM
#1
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Join Date: Aug 2000
Location: knoxville, tennessee
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LT4 dyno numbers from today
I know its not an F body but its a close relative with some results that may or may not help anyone here. Stock LT4 vette with KN filter and muffler elims [muffler elims are just cut out the muffler and weld in straight pipes with the stock tips].
Car put down 318rwhp and 316rwtrq best run out of 4. The other 3 runs were 308 310 312 rwhp and 311, 312, 315 rwtrq. A/F ratio was right on about 13.1 Peak trq at 4500 and flat as a tabletop. Peak hp at 5800 and no drop off even at 6300rpms. I need gears...bad.
Car put down 318rwhp and 316rwtrq best run out of 4. The other 3 runs were 308 310 312 rwhp and 311, 312, 315 rwtrq. A/F ratio was right on about 13.1 Peak trq at 4500 and flat as a tabletop. Peak hp at 5800 and no drop off even at 6300rpms. I need gears...bad.
07-19-2003, 07:10 PM
#4
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Location: Columbia, SC, USA
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red90, you should get it tuned. There is a guy here. I think its Intimid8 or something similar, and he took his bone stock LT4 SS and dyno tuned it and got about 320 RWHP and i think 320 RWTQ out of it. Or, throw some longtubes on it and bust out 350 RWHP.
07-19-2003, 09:31 PM
#5
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Join Date: Jan 1999
Location: I reached back like a pimp and smacked that LS1....
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My LT4 car made 311/325 otherwise stock with a dyno tune, but it came from SLP with a stock LT1 program.
The LT4 vettes tuning is much closer from the factory, however I think it would make more power if it was fatter than 13-1.
The LT4 vettes tuning is much closer from the factory, however I think it would make more power if it was fatter than 13-1.
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Joe Brodman
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