SilverSmoke

Still debating what gear to go with, 3.90 or 4.10. Millions of posts, but nothing really definitive for me to make up my mind.

Just want to hear your experiences and how happy you are with them, and if there is anything you don't like, added noise, too slow, too much tire spin, doesn't spin up fast enough into the power band, etc etc.

I have an M6 w/ 400+ rwhp, weekend warrior, may go to track once in a while, and take on long trips across country.

99blancoSS

iTrader: (115)

389's here, glad I didnt go with 410's. Had 373, werent enough though. I like to keep the RPMS on the highway lower

SilverSmoke

Wow! No one uses them? Or secretly wished went to 4.10's

LS1crazy01

iTrader: (14)

I am also debating on these gears. I wanna know how each of these gears will pull from 70 mph and up. And I would like to know how much of a difference in the 1/4 they are.

Smokinstorm

iTrader: (5)

I went with 3.90's instead of the 4.10's but it's because I've got an A4. I put them in when my car was still SI and was fighting a valve float issue above 5800. 4.10's would have put my car into valve float right at the 1320' mark but would have proably been .05 or so quicker than the 3.90's. Just speculation on that one though.

99blancoSS

iTrader: (115)

Did you not see my post? I would never go with 410's on a street car. Even if gas wasnt expensive, to much of a hassle to keep filling up all the time.

bad6as

iTrader: (17)

i went with 3.89 or 3.90 not sure what they are but i have a m6 and with n20 and the stock rev limiter and a 26" tire i can trap up to 123 in 4th

96mikez28

I went withg 3.89's because i felt 4.10 was too muvh, no regrets

GreenBlood

iTrader: (6)

i wanted to know the same thing...my debate was 3.73 vs. 3.90...is there that much of a difference?

GreenBlood

iTrader: (6)

i was lookin at ws6store.com, why are the 3.90 35 dollars more than the 3.73 and 4.10s?
225 vs. 190

SilverSmoke

Was looking to get more feedback from a bunch of ppl for overall experiences etc

SS1875

iTrader: (34)

I was running 4:10's on my M6 with a Moser 12 bolt...at the track I trapped consitent 121-123 MPH in 4th gear , going through the finish on the Rev limiter that was set at 6800 RPM's. On the Highway if you run in 6th gear gas mileage isn't too bad but in-town sucks!... literally. I had gear noise from day one because of how Moser set up the rearend but I got used to it, some even say their gears were more noisy after the track abuse however mine never changed. First and Second gears are worthless if your running any decent HP(on the street)...they wind up very quickly but if you hook... your car will pull very good out of the hole and they are definatley fun.

DuronClocker

iTrader: (25)

I went 3.89 instead of 4.10 because on 26" tires, I'll run out of gear on spray. I think that's the main reason to go be so picky between the two. If you don't care about running out of gear, or if you don't plan to mod that far where it will make a difference, just go 4.10s.

SilverSmoke

How much power were you running at the time? I'm at around 400+ mark right now.

PunkNPonys

iTrader: (2)

I just put my Motive 3.90s in about a month ago. I like them but i really think i should have just went with the 4.10s. I think my cam would have liked them a little more. There is really not much difference but if you are running a good size cam which you are i would go with the 4.10s. As far as gas mileage i am not sure i havent got to drive the car much to know that. And in all reality it really doesnt matter because they are going to break sooner or later and your going to have to go 9in or 12bolt. Well goodluck i hope this helps.

caddobass

iTrader: (1)

I'm going with 3:89 gear in my A4 with 26" tire which I believe works out to around a 4:10 because of tire. I could be wrong, but that is my way of thinking.

red fury

iTrader: (1)

I have run 4.10's, 4.30's and now 3.90's in my stock 10bolt. I made the switch to 3.90's so I could hold the car in 4th on the spray with a stock sized tire 25.7"

I say 4.10's or 4.30's for a N/A M6... I personally loved the 4.30's over the 4.10's....truley a blast on the street with DR's.