1/4 mile times

[EJL3Lew]

i have a 2010 SHO cold air intake 3 bar map 170 stat and livernois stage 4 91 octane the best with this set up is 13.16 at 104.7 but 2months ago i went 13.08 at 105.8 with out the the 3 bar map and only the livernois stage 3 and 89 octane and its cooler now what could be wrong ... Does anyone have any idea thanks

 

[ElevenSho]

I would datalog and send it to the tuner to review. Unless your 60' is worse I would think you should be faster especially the trap speed.

 

[SHOdded]

You can ask Livernois if you have the latest version of their tunes. On the way to the final version, they had a "cold weather" tune version. I believe since you have a 3 bar map, you can run the 4X tune and 93. If 93 is not available, that would be the only reason to stay with the regular stage 4 tune.

 

[BamSHO]

Your running 91 Octane stage 4 correct? I had the same issues with the '12 when I first tuned it. Did you run with Trac OFF? Do you have the 4+ tune too? Just like Manu said, I would ask for the 4X tune, I have it and love it.

 

[jtreber]

Your running 91 Octane stage 4 correct? I had the same issues with the '12 when I first tuned it. Did you run with Trac OFF? Do you have the 4+ tune too? Just like Manu said, I would ask for the 4X tune, I have it and love it.

I'm just learning. So when doing a quarter mile, traction control should be shut off?

 

[ElevenSho]

I'm just learning. So when doing a quarter mile, traction control should be shut off?

I would definately keep it off. My car cuts power big time if trtaction is on and it spins

 

[BamSHO]

Yes def turn off traction control. I lose about .150 if I happen to leave it off. Took me all season to get decent consistent times.