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wtfbbq is my car doing?

kyle99gtp

kyle99gtp

New member
so at the track last night, i got in 5 runs...the first three were all within about a half an hour..

timeslips004.jpg


my car is literally getting stuck at 95mph...every time id get to 95 it would just stop pulling (its around 4k rpms), almost like it was hitting a rev limiter. the worst part is i still have a few hundred feet of track when this happens.

two of the e/t's are exactly the same down to 1/1000 of a second. something weird is going on. the only thing i had going for me was it was consistant all night.

then my last two runs the same thing happened again...it was a little bit colder this time around.

timeslips003.jpg


and this isnt to mention that my trims were locking at 0 and i had .5* of KR last week and now this week (without changing the tune at all) i have up to 3-4, and up to 6* of kr and my trims are locking a 3.9
i logged my last run, but its on a friends laptop. i'll get the scan, look it over and post it asap.

between the crappy track prep, my magically appearing kr and fuel trims at 3.9, and the fact i cant go faster than 95 is holding me back from 13's.
what is going on? :th_angry2: :th_angry2: :th_angry2:
 


I'm still waiting on the scan. Could be your tune has a high speed limiter programmed wrong or something. Hard to say.
 
yeah, the fuel trims are deinately causing knock. they were locking at zero 2 days before going to the track..

im waiting on the scan too..
 
Yeah best bet is to do the maf tune to where they are locking in at 0 in PE. Wait a cupple days with driving the car to let them settle. then if nessary (wich it was) do another one to take care of the last little bit. Tempeture also affects the trims. So if it was 80 when you did it and it was 60 at the track then thats also could be the problem.
 


yeah i think thats a big part of the problem. we did 3 maf tunes after doing a ve tune, but it was like 75 and beautiful out, at the track it was 40..
 
Have you ever gone faster than your speed at the track before? Speed limiters arent that low on our cars. My guess although it sounds crazy is that it was just a coincedence. Speed limiter just cuts your car out for a minute untill it reduces it's speed.
 
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