02slow4.8

iTrader: (1)

Dude switch out your gears!!!!! There is some left in your truck man... a lot left. I have a rcsb like you, but a stepside bed, with my 4.8, same gears as you, intake, shorties, no cats and flo's, it did a 10.09 in the 1/8 at like 69. So with your mods, you got some left in her bud!!

I really need to get out to milan though. I've only ran at lapeer once and I would love to see what a better track does.

OnyxSilveradoSS

iTrader: (4)

guys there is a rental in OCT...at milan, while its expensive, it is going to be cold and there is a NOEt event that night...I hope that tom has his blower on by then...

I did not remember Sean tuned your truck, I want to meet him, he has some interesting experence/ideas about LSx stuff

custm2500

iTrader: (10)

When is the rental and how much does it cost?

BlackGMC

iTrader: (31)

What octane do you normally run? If you say 87 your one post away from banishment....

ap2002

iTrader: (8)

Get that tune fixed, when i had a 5.3 with the same cam and converter you have, i ran a 14.0 in a ext cab, it wasnt even fully bolton, i was still rocking the shorties back then, and also 3.42s, you definately have more left in her!

DV2000NJ

iTrader: (10)

I'm really puzzled by your 60'. Either you're spinning off the line, or something's not quite right. 95mph should be good for low 14s, and with your mods, I'd expect a 60' around a 2.0-2.1.

How much extra weight do you have in the truck other than the spare and jack?

custm2500

iTrader: (10)

I was thinking the same thing. Waisting your money on high octane fuel when you don't need to is foolish and if anythign will hurt performance a tiny bit because it takes longer to burn. I don't know if it is at all noticable but unless tuned for something above regular never waist your time with anything higher.

trever1t

iTrader: (14)

I run 100 proof from the pump, 5 gallons and just over a 1/4 tank at the track
Get those 4.10's. Yes, I run 3.73 and 4.10's would reduce my chance of ever putting it to the ground but my setup is slightly more radical.
Lose ALL the extra weight. The amount of 'drag' is nothing compared to the amount of energy required to get that extra weight moving.
Tuning.

AKlowriderZ71

iTrader: (22)

Tom, you're shifting way too soon. Try adjusting your shift points to 5800, then 6000, then 6200, see what works best. 3.42's with your tall tires are hurting your 60 ft times, you already know that. Drag radials would really benefit you.

Still, that's a decent improvement for only a cam swap. Congrats!! There's a little more in it for sure.

Suddog

iTrader: (10)

My WOT 1-2 shift point with the 4.8 212/218 cam is 6350 rpms. I have 3.73s and a 29.5 tall tire. At the trap I'm at 6K revs. Vette servo, stock trans/converter