luvmeZ28

iTrader: (3)

ive been around for a while, but heres a newbie question for ya!

how streetable are 4.56 gears if you have an m6? my buddy wants them, but he hasnt got a clue. hes scared it will really hurt his highway driving. anybody out there runing them as a daily driver? thanks in advance for the input. i didnt know what to tell him, im an A4 boy!

LS1SS4ever

Dont do it. high RPM= low gas milege

luvmeZ28

iTrader: (3)

i understand that, im curious as to how much of a difference it will make. is there anyone doing this, or has tried in the past? how about with 4.11s? how big a difference do you feel with those? gas milage/drivability.........

xaon

iTrader: (12)

I get 18city/26hwy with 4.11 gears. That's with cam, full boltons, and a 9".

I don't think the mileage difference would be that much different. In 6th gear at 75mph there is only a 200rpm difference.

Hardtop

iTrader: (3)

Not bad. 21-2200 rpm @ 70 mph. You'll need a 28" tire if you run it at the track. You'll run out of motor on the stock radials before the end of the 1/4.

Bruce

mzoomora

iTrader: (36)

M6 with a 4.56 would cruise pretty close to a A4 with a 4.11, which isn't all that bad. City mileage would suffer also, but the car would be very responsive, even in 6th. Any traction problems would be that much worse also. I used to run a 4.56 in an older Malibu I had with a built 200-4r, and it cruised okay and accelerated like hell!

JL ws-6

iTrader: (50)

Split the difference, go 4.30's. I'll et you know in april how that is with a M6

stealth

My mileage with the 4.11 is OK, but certainly not as good as stock 3.23.

chpmnsws6

iTrader: (70)

i'll let you know now.... you NEED 4.56's!! i have 4.30's and wish i'd got the 4.56's.

highway is NP with out .50 OD 6th gear

luvmeZ28

iTrader: (3)

i appreciate the input.

Murdock

iTrader: (2)

I switched from 4.11 to 4.56 this year. I drive about everyother day to work in the summer (90 mile round trip). I prefer the driving the 4.56 gears, especially good if you have an aggressive clutch. My commute is split between city and highway, sixth gear compensates fine for the highway.

Jason99T/A

iTrader: (21)

I used 4.56s in my car for awhile now. I love it on the street. 6th gear is much more useable in the city. With the tall 6th gear, highway mileage didn't change much, if any over the 4:10s.

SMOKIN01TA

iTrader: (10)

i drove my 4.56 with my cam for months and i loved it. i went on a few road trips and did lots of city driving. its awsome in traffic casue you can let of the clutch in 1st and not go nearly as fast so you dont have to ride the the clutch(a must for my stage 4) on the interstate i set the cruise at 80mph and turned under 2500rpm still getting about 25mpg.

luvmeZ28

iTrader: (3)

thanks very much to the guys posting who have experience with this.

PonyKiln

Damn guys I got 4.30's and now you guys have got me thinking about changing to 4.56's!