drummer0415

iTrader: (16)

Well I haven't posted here in a LONG time but I recently made it to my local 1/4 mile track so I wanted to check in here. My full mod list is in my sig, and I ran on 20s and Nitto 420s street tires. I heated them up pretty well and it didn't feel like I was spinning at all on the launch. Temps were in the upper 70s, and there was a pretty good headwind. Anyways, here was my best run of the night. I feel like my truck should be faster for the mods it has. What do you guys think?

NKPPhil

I apologize in advance if I missed something drummer, but ... you don't have a tune?

drummer0415

iTrader: (16)

Sorry, tune isn't specifically listed in the mod list, but yes it is tuned for all the mods listed.

Tuned by Reckart Performance in Austin.

gamble686

iTrader: (3)

That LS9 cam isn't ideal and could be partly responsible for your somewhat lazy 60' time. Being a Denali it should have 4.10s? Correct me if I'm wrong. For a heavy *** 2wd truck you are doing pretty well. Your build would benefit in a huge way from 150shot of spray or a blower. It built perfect for either. More than a full second could be gained from 6lbs or 150shot I would bet.

Funkster

iTrader: (97)

That 60' isn't anything to write home about. You could easily be mid 13s with an improvement there.

Vortec350ss

iTrader: (20)

Not with the 6 speed. It's 3.42's. But the first gear is so short it's like having 4.56 with a 60e.

As mentioned the LS9 cam isn't ideal at all. Where are your shift points? That cam will love rpm. Exhaust opens relatively early and the intake opens and closes really late. It's not a recipe for good bottom or mid range power... But it carries out that lackluster power forever. I bet your peak tq is now easily in the 5000 rpm range, and if I had to guess it's as late as 5500 rpm.

I have seen that same truck in AWD and a stock cam with no headers pull off consistent 2.0x 60' times if that tells you anything. I'd expect to see you at least in the 1.9 range.

What was the DA? Use the calculator on drag times to figure it out.

shaw_426hemi

Dropping from the 20" tires to some 17" steels would help you but your cam is killing you. By comparison i felt that my 4.10 gears gave me back what i lost going from 18" to 20" with 32" tires. with 18" its faster (not sure how much). Im at a similar point with whats next (turbo build or NOS build).

craigsix

is it a 5.3 or 6.2