NKPPhil

Well, I have a baseline for the new truck: 15.2 @ 90 mph.

This is with 4,200 miles on it; 5,900 lb. at the highway scale on the way to the track; 84 degrees; running in "Drive," and launching in 4wd so I wouldn't chew up those expensive tires. I wanted something to compare the tune and any other future mods to, more than to see how well I could launch it. I had tried a 2wd launch a couple times before I went to the track, and wheelspin was enough to kick in the traction control and bog everything down.

I'm pretty happy, but it was breaking up a little above 5500 so I think I'm going to go in and bitch to the dealer. I don't want to get a tune until everything's running as good as it can strictly stock.

It's been 40 years since I drag raced anything, so it felt pretty good to be back. I liked my best reaction time (.199) but don't even ask me what the worst one was!

tallbluslpr

cool not bad times for stocker.

I found that until my truck got in the 450ish up hp range I didnt have enough power to warrant a 4x4 launch it was faster in 2wd and easing the throttle down.

Also you might want to rethink crying the blues at the dealer about the rev limiter they make notes of that stuff. And they are most likely not going to change it get a tune now best mod you can do.

06 4.8

iTrader: (5)

more than likely what u were feeling was the rev limiter kicking in, i wouldnt take it to the dealer..

JetBlack98Z

iTrader: (9)

Nice times phil, I am amazed at how much more the 4X4 are than the 2wd's. I actually weighed mine today at work on our certified cat scale, Came in right at 5120. That was with 5/8th tank of gas as well.

Regradless, you have a nice baseline and im looking forward to what it will do Tuned =)

NKPPhil

Thanks guys, and thanks especially for the advice against taking it in. Maybe tune first instead. Hafta think about that ....

silverz28camaro

iTrader: (20)

I'm sure GM has de-tuned the 6.2 alot!! My ls1 in my truck with 4400lbs trapped 94, and your trap is right there!!!

I think A guy on another forum has a quad cab 6.2 wit intake / tune/ exhaust/ now trap 100mph!!! thats amazing.

bluecajun5.3

iTrader: (31)

great baseline Phil. maybe you can try to go out again and run 2wd just to see the difference. lower the air pressure in the rear tires to around 27 lbs. i'm going to wait till it gets cooler to take mine to the track for it's baseline.

91Z28

I know that tuned 2wd 6.2s are in the 13s from a few posts I've seen here so I would agree that the factory tune really holds these trucks back, besides the obvious weight issue.

NKPPhil

I had just a little less than 1/2 tank of gas, but also my whole tool box, emergency kit, food, water and the spare wheel for my boat trailer. I didn't want to put it on a diet, just run it like it lives every day. But still - I'm almost 800 lbs heavier than you ... holy crap! Does your 2wd have the 14-bolt rear? I thought they did.

tallbluslpr: Once I get a tune I could see myself getting enthusiastic to see what I can really wring out of it, and practicing a little in 2wd to get a feel for easing into it. Thanks for the encouragement.

blucajun5.3: 27 lb in the tires should make quite a difference, that's a good thought. Mine are at about 42 warm.

There was a guy there in a 6.1 Charger, running right at 13.9 - 14.0. He asked how I was doing and I told him 15.2 and his eyes bugged out. "That thing's so big all it needs is a turret and it would qualify as a tank - that's a FANTASTIC time!"

Rrrrroger that.

JetBlack98Z

iTrader: (9)

Yea it has the 14bolt rear end, I remember weighing my 2010 Gmc Sierra CC 5.3 and it was around 5-5.1k so i'd say the weights are pretty damn close.