Ok guys, its not at all that unheard of but my problem is i'm at 3000+ ft altitude. Its a challenge out here. I think i'm gunna go with 4.56 gears, 3600 stall, pacesetter lt's with ory and probably aem cai. The cam is what i'm not sure of yet... I'm thinkin a tr 224 or 228.. What do you guys think? Will that get me there? Give me your thoughts if you think there's a better way. Thanks.

 

i would go 4.10's and 4k converter instead of the 4.56's... either of those cams will work fine on the 5.3

 

entirely possible... im running the 228 on my 5.3.. cam only best was a 13.0 im sure i would have gotten it into the 12's had i really tried. best of luck to you.

 

get ed curtis from flow tech induction to spec you a cam for you goals, instead of just a off the shelf cam. i also agree with the 4k converter.

 

I guess i'll probably go with an edge 3800 stall. I wouldn't mind a 4k stall but its gunna be street driven alot. But what i'm really curious about is what cam to go with. One of the tr cams or a split duration cam.

 

O btw the truck is an 06 rcsb 2wd with the LM7 5.3, not the L33

 

I agree with AP, you may be better off with 4.10's than the 4.56's depending on your tire height. Maybe even 4.30's, also depending on the height of your tires and the rpm's you’re going to try and achieve crossing the line. I am running 4.56's, but my tire height is very close to 32" tall and still it feels like I just blow right through 1st and really starts pulling good once it's in 2nd. Of course I may be full of it, as it is deceiving; because it still lays down good times and being AWD it hardly spins at all, 10ft to 15ft at the most.

 

mods in sig netted me a best of 13.6....... the truck had a few issues and the converter is pretty tight..... with a looser converter and some more tuning i should be very close to a 12. as said above, a custom grind cam and a 3800+ stall will get you there no problem

 

What was your DA on that 13.6 run?

 

I've been thinkin, i think i'm gunna look for some 4.30 gears and run between 28 and 30 inch tires. That ought to leave me room in third to run n2o and not worry about hitting overdrive before the quarter mile. But what about the cam? Split duration or not?