Truck in sig..4.8 NNBS, Tune, No cats, exhaust, CAI, and 3.73 gears with vette servos..

16.27

and 16.22

Trap speeds were about 87 88 mph

Only got to make 2 passes before the end of the night, but that seems soooo slow... Feels alot peppier than that on the street.

 

I have a 2011 ECRB, 4.8/4L60E, G80 totally stock with 3.23. Feels a lot better from a roll than off the line. Looks like it might be the TM though. It feels a bunch better than my old 2000 ECRB 5.3. Maybe next year I'll take it to the track and run it.

 

Your trap speeds are good for at least low 15's with some decent 60' times. I'm assuming that you were running street tires and your truck is 2wd. If you are serious about going to the track regularly, I would suggest picking up some slicks. Otherwise, I wouldn't worry about it. If you are happy with the performance on the street, that's all that really matters.

 

thats the negative about 4.8s, from a roll u can keep up and or beat on 5.3s and some 6.0s but they have no torque so from a dig the r dogs. Put u a 3200 cicle d and ur times will drop quite abit

 

Truck was supposed to have about 30% of the TM left in it with the tune.. im not so sure now tho.

Wait4me tune

Left first time on the convertor..

Second time rolled into it..

Neither time did it spin

Will not spin tires from a dig at all..

Think the TM is still left in there?

 

I went 16.04 at 89 in 81 degree weather, 20s with 275/55/20 and 3.23 gears. Exhaust, intake, diablo tune at the time.

These are absolute turds out of the hole, but you know that. Since you already have a decent gear, I think a 3200 Circle D stall would help you greatly. I would expect about a .5 second from that, at least.

I'm actually going to the track tomorrow, with a better tune, and running my lighter Denali 18s. I'll post here what times I get.

 

Mine ran 15.9 at Da of 3000...... Intake jba shorty headers flowmasters...3.73.. Stall 3200 ( not tune for the stall)... Shitty as 60 ft 2.4 ( traction issues/spinning)... Full weight ... On stock 20's with hitch spare tire and tailgate etc... Wouldn't that convert to like 15.4-5???

 

i dropped .6 seconds from a 3200 stall alone. after i get my truck i will post some decent numbers. barely got my tune and turck went in the shop right after

 

You need to change tuners..

 

+1 on this..