dyno/track Rant!!!!
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dyno/track Rant!!!!
i recently went to harman motive in torrence ca, and to the drag at famoso raceway with horrible results. i know this is a shoot in the dark because im really the only person who is physically with my car, but ill try anyways.
dyno run was 290ish whp (dont know exactly) on 91 octane.
23psi with 110 octance. 1/4 was 12.9 at 106mph with 1.74 60'.
my problem is that i recently installed a utec w/tuna, xs engineering intercooler, and rc 750cc inj since last time at the track. i installed these parts and lost 1/10 in the 1/4 and when from 109 to 106mph.
im going to checking the timing tomorrow and i want to do a pressure test. i just dont understand why my car is so slow.
please dont say its tuning, dan at harman is a great tuner.
btw, i did two runs at the track with 91 and i ran the same as with the 110.
dyno run was 290ish whp (dont know exactly) on 91 octane.
23psi with 110 octance. 1/4 was 12.9 at 106mph with 1.74 60'.
my problem is that i recently installed a utec w/tuna, xs engineering intercooler, and rc 750cc inj since last time at the track. i installed these parts and lost 1/10 in the 1/4 and when from 109 to 106mph.
im going to checking the timing tomorrow and i want to do a pressure test. i just dont understand why my car is so slow.
please dont say its tuning, dan at harman is a great tuner.
btw, i did two runs at the track with 91 and i ran the same as with the 110.
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boost does tapper a bit. but i really think the time might be off. the car has idled like **** for a while now.
tuning is okay, afr floats around 11.3 on the 91 map
just looking for advice or experience with this. thanks justin
tuning is okay, afr floats around 11.3 on the 91 map
just looking for advice or experience with this. thanks justin
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If your 264's don't idle very close to stock then you may have a cam/cam gear install issue. I have seen a EVO that had that problem. It idled worse then my 272's and put down about 30whp less. You should talk to Harmon and see what similar modded EVO's put down. That way you can have something to compare by.
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Originally Posted by Widebandphillip
vaccum leak somewhere, check vaccum lines.
also, i was using the launch control and 2 step.
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i'd check all IC plumbing before anything. If everything is peachy then I would look into the timing because with 110 in the tank you should be able to bump that timing up a good bit
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Originally Posted by EVOTEXAS
Why in the world did you get 750s?
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Originally Posted by xepyt
that's what i'd like to know. there's no point in running larger injectors when you're running a stock turbo. as a matter of fact you ideally want to run the lowest injectors you can optimally get away with,
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Originally Posted by BSREVOLUTION
and im looking for help, not critisim.