3.9 stock run - Page 2

cmitchell17 · 01-30-2017, 10:08 PM

Quote:

Originally Posted by HyperSmurf

I think the claim for the 1SS A8 is 4.0. The 1ss is like 175LBS lighter, helping it out.

I had to burn the tires a little to get them sticky for the 3.9. My average is about 4.2.

Were you using launch control. I tried some quick runs using no launch control and I only got 4.6. I need to get more practice launching.

Does anyone know if launch control is a BCM or PCM function? If it is a PCM function, can EFI Live or HP Tuners change the parameters?

It seems like everyone thinks they can launch it better than the launch control, which I kind of find hard to believe, unless more spinning and less control is actually more helpful on launch?

Also what kind of locker is in the differential? Does it have clutches? Similar to the G80 in the AAM axels in the trucks?

HyperSmurf · 01-30-2017, 11:31 PM

Quote:

Originally Posted by cmitchell17

Were you using launch control. I tried some quick runs using no launch control and I only got 4.6. I need to get more practice launching.

Does anyone know if launch control is a BCM or PCM function? If it is a PCM function, can EFI Live or HP Tuners change the parameters?

It seems like everyone thinks they can launch it better than the launch control, which I kind of find hard to believe, unless more spinning and less control is actually more helpful on launch?

Also what kind of locker is in the differential? Does it have clutches? Similar to the G80 in the AAM axels in the trucks?

I did it without launch control, I've never actually used it yet.

I stand corrected on the weight differences between the models

. I appreciate y'all keeping me honest!

cmitchell17 · 01-31-2017, 03:45 PM

Would there be any advantage of going to a 285 or 295 if it will fit on the stock rim? Or would it look goofy? I just wonder if it would ever be possible to have a street capable setup that would be able to put all power to the ground at all times and not worry about spinning? I'm surprised how good this car hooks as it is stock, but I'm used to trucks. I used to have a duramax with a 500rw tune which got 0 traction, but I could launch in 4x4.

Slem · 01-31-2017, 03:53 PM

Lol I tried doing the 0-60 mph a few times, think the best I got was a 4.8 but also had some 5.1 and 5.2 , one thing I found out was you just can't smash the gas or you smoke the tires and go sideways. I could see the car pulling 4 seconds if it had traction though

01-31-2017, 03:45 PM	#17
cmitchell17 Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016 Location: US Posts: 1,201	Would there be any advantage of going to a 285 or 295 if it will fit on the stock rim? Or would it look goofy? I just wonder if it would ever be possible to have a street capable setup that would be able to put all power to the ground at all times and not worry about spinning? I'm surprised how good this car hooks as it is stock, but I'm used to trucks. I used to have a duramax with a 500rw tune which got 0 traction, but I could launch in 4x4.

01-31-2017, 03:53 PM	#18
Slem Drives: 2016 Summit White 2SS (Auto) Loaded Join Date: Jul 2016 Location: Ontario Posts: 487 View My Garage	Lol I tried doing the 0-60 mph a few times, think the best I got was a 4.8 but also had some 5.1 and 5.2 , one thing I found out was you just can't smash the gas or you smoke the tires and go sideways. I could see the car pulling 4 seconds if it had traction though

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