Baseline Dyno done in by Murphy's Law
06-30-2005, 02:41 AM
#21
I ♥ Acer
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Join Date: Apr 2005
Location: San Diego, CA
Posts: 1,939
RE: Baseline Dyno done in by Murphy's Law
ORIGINAL: 05SonicBlue
this is exactly what i've been wondering: what is the effect of a tune and nothing else? no exhaust mods, no CAI, no pullies, no vapor trap removal, etc. just a reflash on an otherwise stock car
ORIGINAL: Tres Wright
Don, I'm wondering if you're planning a run with the tune but with the stock intake (without the CAI)? One thing I've been wondering whenever I see the HP gains posted for CAIs is how much of the gain is just because of the tune.
Don, I'm wondering if you're planning a run with the tune but with the stock intake (without the CAI)? One thing I've been wondering whenever I see the HP gains posted for CAIs is how much of the gain is just because of the tune.
this is exactly what i've been wondering: what is the effect of a tune and nothing else? no exhaust mods, no CAI, no pullies, no vapor trap removal, etc. just a reflash on an otherwise stock car
ORIGINAL: Birdieman4
It sounds to me like the timing in the Diablo performance tune was too low. Timing will have a much greater effect on your hp than the a/f ratio. About the only way I could see the hp # being that much lower is if the timing was less. There could be some other factors, but I feel that the timing is the issue.
It sounds to me like the timing in the Diablo performance tune was too low. Timing will have a much greater effect on your hp than the a/f ratio. About the only way I could see the hp # being that much lower is if the timing was less. There could be some other factors, but I feel that the timing is the issue.
06-30-2005, 02:46 PM
#22
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Join Date: Oct 2003
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Posts: 3,020
RE: Baseline Dyno done in by Murphy's Law
I could be a few different factors. Try and find out how much total timing the Diablo performance tune is running. One possibility is the Diablo chip was programmed with a 'blower' timing tune, which would have had considerably less timing than a tune for n/a. Try and find out how much total timing the diablo program is using right now. You should be able to run around 28 degrees of total timing on good gas.
06-30-2005, 03:18 PM
#23
I ♥ Acer
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Join Date: Apr 2005
Location: San Diego, CA
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RE: Baseline Dyno done in by Murphy's Law
Thanks for the feedback. I'm out of San Diego until next week, so I won't be able to check anything until then. I now have the proper C&L-specific tune on the car again, so I don't know if I will put the "wrong" tune back in to test it out.. so this may stay a mystery (to me anyway). The day after I get back (7/6/05), I'll be able to see new dyno numbers with the correct tune.
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