1 inch lower when the tires before were 275/35? 35 series barely have any sidewall as it is...
Hmm if it's that much shorter you should definitely be low 14's. Strange your MPH is also low. I think i trapped at almost 95 if not at 95. It shouldn't be a difference of 3 mph especially considering the temperature change. Have you done a compression test or anything lately? 3 mph is quite a bit especially if I trapped at 95 during the dead of summer and you trapped 92 on an ice cold day.
I have not done a compression test on it yet...I was going to...it runs real good, still runs strong, etc. it does seem to take a long time to start up, lots of cranking,
I don't know if the long crank-over is an issue having more to do with the alt./battery...the alternator voltage output is a bit low, I think the alt. is tired, still charges just fine, but the voltage will drop down pretty low sometimes...
the other thing that started lately is it has this weird stumbling issue at idle...sometimes, it was doing it yesterday while I was waiting in line for the second run, it's like there is a misfire or something...no codes...yet...I still have not fixed that evap sensor code, but I don't think that's hurting anything. I was going to pull the plugs and see how they look, or maybe if I swap out the steeda wires for some ford wires, although I don't think those are a problem.
It was real strange yesterday, at the end of the run, I was still go pedal to the floor and it fell on it's face for a second, it was almost like it hit what would have been the speed limitor, but for one I wasn't going fast enough to be where it would have been without the tune, and two, no limiter...it only did it for a second and then picked right back up...fuel pump going maybe?
The motor could just be tired with 173,000 miles on it but I'm really not sure at this point, it really does run well...the long cranking time thing is weird, but probably not anything to worry too much about.
I think a lot of the issues with yesterday's runs had to do with the fact that it was my first time running a car at the track...ever...so I was inexperianced and nervous, didn't want to break anything, etc. It's probably just that I need more practace at this.