A4 3.73's or 4.10's? Guys with experience please chime in!
07-20-2009, 08:33 PM
#1
A4 3.73's or 4.10's? Guys with experience please chime in! I have 3.73's waiting to be installed but i'm having second thoughts if i should go with 4.10's. I'd like some of you guys with experience with the two gears in A4 cars to please chime in.
07-20-2009, 08:47 PM
#2
11 Second Club
iTrader: (32)
Join Date: Jan 2006
Location: Southaven, MS (near Memphis, TN)
Posts: 3,701
Likes: 0
Received 2 Likes
on
2 Posts
What size tire?
What shift points?
My car with 26" tires, 6100shifts, and 3.73s, I was running out of gear at 120mph not shifting into overdrive.
I went to 3.50 gears..hah
What shift points?
My car with 26" tires, 6100shifts, and 3.73s, I was running out of gear at 120mph not shifting into overdrive.
I went to 3.50 gears..hah
07-20-2009, 09:34 PM
#4
TECH Regular
iTrader: (8)
Join Date: Mar 2008
Location: Plain Dealing, LA
Posts: 445
Likes: 0
Received 0 Likes
on
0 Posts
If you do a fair amount of driving on interstate I would say stay with 3.73s. I ran them for awhile and topped out around 130 - 135 in third. I was running a 2000 stall though. Not sure what kind of gears you are running now but if they are 2.73 thats a big jump and it will easily net you more than .2 in the quarter. If you are running a big stall the gains will be less.
Im about to run 4.10s once my 96 project is finished. Not by choice only because thats what was in the rear I bought for 50 bucks and im not spending the $$ to change em out. Im just gonna save and get a 12 bolt in a couple of years.
Im about to run 4.10s once my 96 project is finished. Not by choice only because thats what was in the rear I bought for 50 bucks and im not spending the $$ to change em out. Im just gonna save and get a 12 bolt in a couple of years.
Last edited by Kevin01Z28; 07-20-2009 at 09:39 PM.
07-20-2009, 09:39 PM
#6
i just bought a car with 4:10's in an A4 and i love it for the street. Since i just got the car like 4 days ago i havent had a chance to get to the track yet.
4:10's would probably do real good in the 1/8 but on the 1/4 it would probably put you into OD if your shift point isnt pretty high.
4:10's would probably do real good in the 1/8 but on the 1/4 it would probably put you into OD if your shift point isnt pretty high.
Trending Topics
07-20-2009, 09:42 PM
#8
i just bought a car with 4:10's in an A4 and i love it for the street. Since i just got the car like 4 days ago i havent had a chance to get to the track yet.
4:10's would probably do real good in the 1/8 but on the 1/4 it would probably put you into OD if your shift point isnt pretty high.
4:10's would probably do real good in the 1/8 but on the 1/4 it would probably put you into OD if your shift point isnt pretty high.
Yeah I was just interested to see how much it would help, this is my first A4 Build. All the others have been M6's.
It helps to put it in to perspective on which way to go. 
07-20-2009, 11:00 PM
#13
I haven't had mine to the track but I went from 2.73's to 4.10's and it is bad *** on the street. Definately take out a lot of cars from stop light to stop light. Highway isn't so bad about 3000-3200 at 80 with stock size tires. And my milage didn't change much at all. I do go into overdrive pretty quick though. But when do I really drive 110? It all depends on your idea of driveable. I love it cause the car moves out soooo good from a dig. I'm not into high high speeds so it was the right choice for me.
07-21-2009, 12:46 PM
#14
I haven't had mine to the track but I went from 2.73's to 4.10's and it is bad *** on the street. Definately take out a lot of cars from stop light to stop light. Highway isn't so bad about 3000-3200 at 80 with stock size tires. And my milage didn't change much at all. I do go into overdrive pretty quick though. But when do I really drive 110? It all depends on your idea of driveable. I love it cause the car moves out soooo good from a dig. I'm not into high high speeds so it was the right choice for me.
07-21-2009, 10:58 PM
#19
TECH Fanatic
iTrader: (35)
Join Date: Aug 2004
Location: Paramount CA
Posts: 1,016
Likes: 0
Received 0 Likes
on
0 Posts
I have a stock 3.42 rear end in my car and have gone 1.42 60" on a tiny drag radial.
3.42's work good for me
Im curious what I would gain going to 3.73's or 4.10/4.30's and a 28" radial?
Its already hard enough to hook this thing on the spray off the line. Im thinking the gears may hurt me.
3.42's work good for me
Im curious what I would gain going to 3.73's or 4.10/4.30's and a 28" radial?
Its already hard enough to hook this thing on the spray off the line. Im thinking the gears may hurt me.