Really? 3rd gear? Doing the math, it doesn't seem possible. Are you hitting the rev limiter?

 

i dont know whats up, im hoping to hit 11's now with spray no lift shift, the nano system will help as well, i did all the suspension first so it hooks much much better, and no it wont be on the 20" i havent decided if i need a set of race stars since the time i get back from this deployment the track will be closed, or if ill be fine with a set of DR on my stockers.

 

I bounce the limiter as I cross the line. If I have a bad launch and spin even a little, I end up having to shift into 4th. Keep in mind, I shift first and second at 6500 as well. Also, I've been told that Hoosiers measure slightly taller than their rated size.

 

Soooo... 93 Race Tune with Hot Rods and I finally beat my stocker time.. by almost a whole 0.03 seconds... WTF?

Haven't got the whole launch thing figured out... best 60' time was when I bogged the engine (2.05).. but, if you look at the 1000 foot times, it's NO better than stock with a 2.2 at the 60' line.. WTF?

Limited it to 3 runs... on the third run something "slapped" the body hard on the 2nd gear shift.. I'm assuming I lost a bushing in a LCA... :eyeroll:

All I can say is WTF?

 

this is what I was going to point out. temps and track conditions make a hell of a difference. you do not appear to be tracking that : )

 

2009 was in the 60's... Both runs this year in mid 80s... humidity about the same this year..

 

Must be the drop in fuel/timing due to the 87 tune!

 

93 Tune, not 87

 

80's to 60's is about a 4% difference in power - that's significant. Here's a calcuclator you can use to figure out relative power based on altitude, humidity, pressure, and temp: http://www.csgnetwork.com/relhumhpcalc.html

 

Your better time was done in October, and your new time done in the heat of the summer... so that pretty much solves it for me. In the cooler months I would be running low 13s. In the warmer months I'd be running high 13s - 14s. Holding 3rd gear is best on 3.55s in my opinion and I would typically shift a little higher closer to redline.

Also the tune does play a factor and so do the miles. Track conditions, tire conditions/wear/etc... Lot of things to factor in over a span of 3 years.

Edit:

Also I noticed you're running AM Bullits + Nittos. Sorry, but I think the stock wheel/combos are much better performance wise. You probably added over 100lbs total of rotational weight, and the better tires aren't making up for that gain.