6speed and Boooooost..

[CHEVROLADE]

what gearing do you all think would be perfect for turbo setup...will be changing out the ring and pinion in a week or so....

i have a set of 3.73s and oem 3.23s............

i only know one guy that has a procharged reg cab with the 6spd..hes running the 323s..he says it feels like a 60e with 373s

whatever i choose will be backed by a 3500 stall...

i see most boosted guys run a 3.50 3.55 gear...but of course they dont have the 6speed so

[kerrige]

Considering the awesome gearing of the 6 speed and going turbo my vote is 3.23.

[CHEVROLADE]

yea ide like to finish the 1/4 at the end of 3rd gear if possible and they charge 400 for a gear swap down here,ide like to only do it one more time..

[kerrige]

hmmmmm thats an interesting thought I wonder what gearing that would take. I really want something with a 6speed. Just amazing.

[Frenchy]

I've always been told to cross the traps about 500 rpm after peak power. So why not hit the dyno after the turbo, do some math and get it perfect? I love the 6speed with the 3.73's though. It's a nice combo.

[George C]

Ill be keeping my 342s with my 6l80 with boost but im on 35s. For you id run 342s with 28-29" tire

[CHEVROLADE]

my truck wont work on a dyno..wont stay locked in a certain gear

[George C]

I was able to Dyno mine in 4th, why are you having issues?

[o2camaross]

Don't forget to factor in converter slippage when you are doing your calculations, of course unless you lock the converter.

[CHEVROLADE]

cause i dont have the tap manual control of the trans since i did the swap...but i did find out something ,if i drop the shifter once down it drops the gear to the lowest and stays in 4th till i shift up to the D......so i may be able to now.