Drag race next weekend...got some questions??

bdm1981 · Apr 16, 2016

I've drag race before years ago in a big cubic inch nitrous car years ago. Wanted to take my truck to a local track for their diesel drags weekend. Just curious what gear and rpms you guys launch at? Do I use manual mode or leave it in auto as far as the trans goes?? I'm new to this as far as racing a diesel truck so any advice would be greatly appreciated.

Codydiesel · Apr 16, 2016

With 3.31s I usually say launch in first gear I had the best of luck with mine in first not second gear launchs. Leave it in auto, manual shift isn't fast enought and usually causes slower times. Launch at 2000-2100 Rpms between 11-15 lbs of boost depending on track and tires you have. Also disengage advance trac (hold tc button down for 5 seconds), some people unplug there driver side wheel speed sensor but I never had a need to do that. Put it in 4 hi and have fun. Do not engage your e locker it will defuel your truck within the 60'.

bdm1981 · Apr 16, 2016

Codydiesel said:
With 3.31s I usually say launch in first gear I had the best of luck with mine in first not second gear launchs. Leave it in auto, manual shift isn't fast enought and usually causes slower times. Launch at 2000-2100 Rpms between 11-15 lbs of boost depending on track and tires you have. Also disengage advance trac (hold tc button down for 5 seconds), some people unplug there driver side wheel speed sensor but I never had a need to do that. Put it in 4 hi and have fun. Do not engage your e locker it will defuel your truck within the 60'.

Thanks bud. I was curious what gear to launch in with having 3.31 gears. I don't have track bars on it so I'm sure I'll have a fun time trying to getting it to hook. Appreciate the input. I'll post track times next weekend with the results.

Codydiesel · Apr 16, 2016

I know with my 363 my truck did a 13.1 stock fuel, 35s, traction bars and with a 366 it went down to a 12.9 so you should be in the low 13s.

bdm1981 · Apr 16, 2016

Codydiesel said:
I know with my 363 my truck did a 13.1 stock fuel, 35s, traction bars and with a 366 it went down to a 12.9 so you should be in the low 13s.

I just got stock tires on mine. What tire pressures did you run yours at?

Codydiesel · Apr 16, 2016

I ran 50 in mine , for stocks I had the best luck at 40psi after that they felt like mush. I would try getting traction bars they change how your truck drives and shifts for the better.

bdm1981 · Apr 17, 2016

I would if I could but can't afford them just yet. Jared and Mike have already gotten on to me for not having them already...lol.

Codydiesel · Apr 17, 2016

Lol I could imagine they would, I wasn't able to afford them either so I just made them. 2 years later still going strong. Can't say the same about my engine.