SSShow

Well, I have a cam, Lq9 heads sitting at the house. I have the oppurtunity to get 4.10's in the rearend for cheap! The Turbo prospect has been pushed back at least a year. I'm buying a set of coated LT's shortly to be installed as well and was wondering if I would regret the 4.10's once the turbo (STS t67) was installed. Most sign's around the forum tell me not to do it so I figured I'd get some feedback before I pass on the chance. 2002 Camaro SS

hissin'98

iTrader: (1)

Don't do it. You wouldn't see full boost by 3500-4000 in second or third gear. Turbos require loading the engine and higher gears shorten the powerband per gear. Stay way under 373s. I'm running 342s but as soon as the 9in gets here, its set with 3.50s. Do some searching on this, you'll finds tons.

RaNsOm

iTrader: (2)

yup I've heard the same. Stay with a low gear, like 3.42s and you'll be golden.

SSShow

ok, will do!

Mr_president

iTrader: (38)

i have 3:50s in my 9 inch and now that i am getting the th-400 with only 3 gears i think i want to go even lower!

2000 Tran Zam

iTrader: (2)

id say you could use 4 10's if your turbo was smaller, cause it wouldnt need as much load/time on the engine to build boost on a stock cubed motor, but im using 3 42's in my setup and it works pretty decent.

93formto98T/A

iTrader: (28)

I had 342s in my 10 bolt and went to 310s with the new moser 9". I'm loving the tall gearing! Faster spool and more mph per gear!!!!

mdhmi

iTrader: (1)

342's

30th t/a

iTrader: (51)

im going 3:42s. i got 4:10s now from my previous NA setup and i dont feel the turbos kick untill 3100rpm. my turbos are twin t44's.

67Firebird455

iTrader: (27)

4:10's are BS with a turbo, trust me, look at my sig. I plan on running even 3:50 in a 9" with a 27" tall tire, shoot... may go even taller, I'm tired of being out of gear before the turbo even spools up to full boost. I HATE my 4.10's.

Eric Bazan

iTrader: (1)

3.42's or 3.23's

1bdbrd

iTrader: (12)

would 3.23s be too low for an m6 car? im considering just leaving the gears alone when i get the car running and it was an original 3.23 auto car.

67Firebird455

iTrader: (27)

I really don't know if it would be... Depends on if you're leaving on a 2-step or not I guess... I may eventually put a 2-step on, when I get a 9" under it...

1bdbrd

iTrader: (12)

no 2 step for me. in fact im planning on slipping the clutch and nailing it through second as i care more about trap than et (mostly from a street racing standpoint but traction breaks things too... lol)

67Firebird455

iTrader: (27)

hehehe, that's what I did to avoid breaking barts... run it up to about 3k, then let her slip, when I'd do that with the turbo it'd make so much damn boost fast cuz the engine was still under load but then the tires would go up in smoke as I progressively loaded the engine more with the clutch. There's a fine line on traction and boost, trying to control it with the clutch and throttle at the same time makes it a little tough, not like an NA car. =)

IgottaT/A

how do 3.73's run?

forgedlt4

im running 4.11s with a 28 inch tire. my turbo set-up spools extremely fast, so i have zero issues with them. i like em.

WS6HUMMER

iTrader: (19)

Had 4.10's (28" tire) when I ran an M6, even did it with my TH400 (which sucks by the way). I now run a 3.50 gear in my 9"(as recommended by my converter builder Lenny) , its a match made in heaven and works great. The weight of your car comes in to play a lot too, if my car wasn't such a pig I'm sure I wouldn't be running a 3.50, I might be closer to a 3.08. My point is that I wouldn't go with too numerically low of a gear, keep getting some feedback on this thread & research,IMHO.