Looks like a bunch of fun.
I'll definately have to get out to the track sometime this fall.
It sounds strange that everyone is consistently running a couple ticks slower. Was there any wind? Maybe a slight headwind.
No wind at all. There actually was a pretty big headwind the at Rockingham when I ran my best times.
A couple ideas for explaining slower times....
the J-mod increases the line pressure, correct? If so, it takes more power for the pump in your transmission to make the extra pressure. It may have countered the effect of faster shifts. However, keep the J-mod. The transmission will last much longer if it isn't slipping!
No, actually the opposite. The Jmod allow more fluid through via larger diameter holes instead of increased pressure. I actually backed the shift pressure way down in the tune because I found it wasn't beneficial when turned up
Also, when you stage, stage as shallow as possible. The timer starts when your front tires roll out of the beam. By shallow staging, you can effectively give yourself a 'running' start which can give shorter 60' and 1/4 times. Maybe you were staging deeper than usual?
I was staging like I always do: as shallow as possible.
Like someone else said, try running as much pressure in the tires as possible to still hook. It makes a difference. The front tires, you can even inflate to the maximum written on the sidewall, which is around 45-52psi, depending on the manufacturer and tire. Decreased rolling resistance does help. And of course, take any junk out of the car that you can: sub woofer, spare tire and jack, floor mats, McDonalds wrappers, rocket launchers, ect. Next time, make a pass without these changes, then make a pass with all of them combined. Each has a tiny effect, but add them together and it might just be enough.
Yea, the tire thing has me wondering. I'm sure that the decreased pressure in the rear was taking away from the trap and possibly ET, but just how much has me wondering. The front tires were at almost 50 psi.
Rocket launchers....lol. I had all the junk and subwoofers removed. I did leave the spare tire in, vs. taking it out with my best runs at Rockingham. But what are we talking about here? A couple hundredths difference tops?
And yes, I've been taking tools along in case I'm just that close to a 12, I'm gonna take the rear and passenger seats out. Those two together are probably worth upwards of a tenth.
The first time I ran a 12 was crazy. That night, I ran 10 passes in the low 13s, including some 13.0's. I loaded up my tools and other junk in the trunk, discouraged that I couldn't run a 12 and my friend encouraged me to make just one more pass with everything in the car. I did and ran a 12.97, with 1mph less trap speed. LOL. The extra 100lbs helped me get the traction to run a 12.