sayed_000

My friend is doing his supercharger ..
just wondering is 4.10 a good choice to go supercharged engine ?

should i go to 4.10 ? from the stock m6 ratio ?

plz help ..

stevieturbo

doesnt matter.

What does matter is if your engine makes 10bhp, or 1000bhp.

sayed_000

it doesn't matter but i don't want to lose any rear end power ..

stevieturbo

gearing wont make any difference to power at the engine.

How much power does the engine make ? How much traction do you have ? That's what DOES matter when trying to select gearing.

Also what is the car used for ?

sayed_000

so i have to see if i have a good traction .. good power and them decide which gears to go with ?

stevieturbo

There are many variables.

Low power = short gears.

Lots of power - tall gears.

sayed_000

so what do you recommend for 500whp ?

Short ?

mostly used on the street with street drag redials .. ?

stevieturbo

The 4.1 you have might work well with DR's then. Certainly not worth changing it until you have tried.

if you find the lower gears are useless with a lack of traction, then you could opt for taller gears.

If you are using it for 1/4 mile racing, then you might want to change the gears to optimise 1st thru 4th gear for the track.

if its purely for a road car, you just have to try it and see

sayed_000

hmmm .. thanks for helping me stevieturbo

i really do appreciate your advice ..

Steve Weisman

I'd go with373's for the street and 410's for strip use. My 410's were to low for the street even with good tires (305 nitto's ). 410's would go up in smoke 1st and 2nd with lots of suspention work. Qa1's at 1 in front and 6 in back helps but not a good ride on the street. Good luck, Steve

LS1RedZ

iTrader: (19)

I had 4:10s in the car for a little bit until I switched to a 3:73. I like these alot better. I still dont have any traction through 3rd and some of 4th, but they work tons better at the track.

MadIceV8

iTrader: (12)

I would stay in the 3.23 - 3.73 range.

I_Need_Land

iTrader: (12)

im coming from 4.30's with a 26" tire, ~5-600hp. i decided to get traction i need a 28" tire and for the best performance street/ some strip was a 3.90 gear, best i can tell it acts just like a 3.73 with a 26" tire with the added benefit of the taller tire. but im not sure if 3.90s are available with stock rears... i have a 12 bolt and if your making 600hp i hope you dont have a stock rear.

stevieturbo

The problem with tall tyres....not everyone drives everywhere in a straight line.

I_Need_Land

iTrader: (12)

and thats fine.

IKnowtheFuture

iTrader: (5)

i like my 4.30s on street tires lol

LS1RedZ

iTrader: (19)

You must like going nowhere fast huh! lol

Jimmy P

iTrader: (177)

I had 3.73's and then went down to a 3.50. Didn't realy notice a difference as far as street driving. 4.10 might be a a bit too much, but it realy depends on each setup.

sayed_000

after decoding the codes fron the door sticker .. i realized that my car came with 2.73 ratio which is really rare !!

is that true ?
GU2 - AXLE,REAR,2.73 RATIO 2.73R(GU2)

venom ws7

iTrader: (13)

3.73 I know you guys street race alot in Bahrain your 4.10 is gonna break sooner or later..

Or put the stock 3.42 back like this car

http://www.youtube.com/watch?v=wT9Lnsqxkbo

.