well i went back to the track to test out my truck even though I still have my weak G80 on. ....the first time i ran it about 2weeks ago, my best time was a 13.3 @99.99mph, basically 100mph, with a 1.9 60ft...tonight I ran a best 13.34 @ 101.05mph with a 1.89 60ft...how does my MPH increase so much and my time stays the same??

 

Weather, DA, wind, heat, etc.

 

doubt it, it was even hotter tonight than the last night I ran. today it was in the low 100s all day and it was probably 89degrees maybe even low 90s wen I ran since the sun was still out....2weeks ago wen i hit my 13.3 it was around 10pm and ALOT cooler.

 

Head wind last time, tail wind this time. Motor got a chance to cool more. There are a lot of factors.

 

It just does. I can't figure out why sometimes I'll have a better ET but slower trap speed. Sometimes I'll have a faster trap but slower ET? I attribute it to weather conditions.

 

nah bro, i didnt even cool my motor at all. i showed up to the track, signed up, and went straight to run it.

 

ive trapped 1mph higher with the same exact 60' and put down the same exact 1/4 time at the end of the track. it just happens.it baffled me though..


same 60' but 1mph higher should equal better times but aparently im wrong

 

Did you drive it like you stole it on your way out to the track? The GM VCM seems to respond better when you beat the hell out of it (and I'm not sure why). My Camaro SS on the dyno went from 315 on the first pull to 327 on the third pull.

Could be your tire pressure too...

 

Sounds like it falls down in the middle. I'd guess that you're having a KR* problem.

 

You made zero changes from last time, correct?