geno51

I don't know if that's going to happen my truck now that it is tuned is barking all four tires Boosted to 2500 rpm

speeddemon86

Wow! That's impressive!! Those eb engines are incredible!

BDFX4

Probably won't get that hi, but I bet if I can launch a lil harder and get them to stick, I can get her to go low 1.9 sixty ft. and maybe get her in the 13s.




Bob

geno51

Try the 4wd launch next outing
I assure you will hit 13 s

ninjatalon

iTrader: (1)

I never launched at 2500 at the most was maybe 2000 i should try n see how much that might help me. Who knows if my truck can hold it at that rpm. I hope i can head out to the track this friday w stock tires.

ajrothm

With my LMS tune, launching on the street in 4 hi, I can brake boost it to about 9-10 psi before it starts pushing through the brakes. I want to say it was almost 2500 rpms at that point. No tire spin or even chirps.. As soon as I launch, I roll it back to 2 HI before the 1-2 shift.

Launching in 2 HI I can only get up to about 1900 rpms or so before it starts power braking (spinning). The point right before it starts spinning is about 3-4 psi of boost.

I didn't try 4 HI launches at the track last year but I damn sure will next time out. I feel it will be quite an improvement.

Limitless2011

I was launching my ecoscrew in 4hi as well. And my tires chirped every timehat sweet launch. My 60ft time was 2.031and quarter mile was 14.686. All stock plus superchips performance program.

BDFX4

What RPM were you launching at?? I went a 2.02 60ft. launching in 2WD with the E-locker engaged.



Bob

focus289

For the guys who launch truck in 4x4. Do you leave it in 4x4 for the whole run or take it out after you leave the line. I have not tried it yet but thinking about giving it a try.

No1ford

Launch in 4wd, once moving I take it out. But it stAy engaged until you lift at the end of the track. It does not shift out of 4wd, yes the light goes out but 4wd is still engaged!