J'sRedWS6

Iv read alot of post of guys wanting to know what the difference is from a 3:23 to a 3:73 gear in an A4 and last nite I ran with just a 3:73 upgrade from the last time I ran and I was real happy with the results.previous best was a 13.2@105.8 last night I went 13.0@109.1 I would of been in the 12s but couldnt get my 60ft lower than 2.15 on street tires.Was real happy with the way the car was pulling through 2nd and 3rd.I hear alot of guys worring about top end with the 3:73s but as u can see I gained over 3mph,Im sure the 50degrees outside helped a little too.I think I could get a 12.7@110 on drag radials.Mods are paceLTs,ORY,Corsa cat,LS6,portTB,FIPK,3:73,girde.

craz28

iTrader: (10)

u should do a top speed run, I would like to see what the top speed is for those gears on a4. Nice runs btw

Ace$nyper

iTrader: (8)

Asuming stock gearing and stock tire size he'll do 175. Not to preach to much but probbly not best idea to test that theory on public roads.

Also instead of needing to test this stuff just use a gear calc like in the sticky

mzoomora

iTrader: (36)

Nice results. Im sure the weather helped, and a lot of people will point that out, but with those 60ft times it shows what the car had left in it. Typically you can figure on every tenth in the 60ft to be worth anywhere from 1-1.5 tenths at the end. What were the 60's on the old runs?

wws699

iTrader: (3)

I just had my gears swapped from 323 to 373 also, and and Auburn Pro. The car is definately more responsive. Now if only it will stop raining

keliente

iTrader: (22)

You fellas with A4s...what are your rpm's around 70mph? I have 3.23s now and I think it's a hair above 2k. Been entertaining the idea of 3.73s but not if it is going to be outrageous. I will have a 3600 stall also.

LS1 Eddie

iTrader: (2)

Did you put the 3:73's back in the 10 bolt?

J'sRedWS6

gears are in the 10bolt and the 60ft time on the old best run was a 2.09.

wws699

iTrader: (3)

373's definately arn't outrageous for an A4, perfect for daily driving and good for the track great all around gear. Not sure what the RPM's are at 70.. Im sure someone will chime in though. Ill be going with a 3600 or a 4K stall also..

gruntwork

iTrader: (2)

Hey, I'm lookin to gain some MPH in the quarter and top end pull for highway rolls. I already have a 3600 stall and 3.23 gears and my mods are in sig. Will 3.73's make any difference since I already have a stall???

J'sRedWS6

I dont see how the 3:73s would hurt ur speed in the 1/4 but I dont think it would help as much as a nonstalled car.Maybe some1 else can chime in with a better answer.

LS1 Eddie

iTrader: (2)

How are the 3:73's in the 10 bolt with a stall? I'm a little hesitant to dump $500 into the 10 bolt only to have it break. The other side of me says it's an automatic so I could get away with it.

little_chewy_69

iTrader: (2)

yeah i wanna get 3.73's in my A4 with 3500 stall. I have 2.73's right now not sure what it'd be running down the highway at 80Mph. with 2.73's it runs 2,050rpm@80Mph

00slowredz

i have 2.73's also and i have 3.73's waiting to go in it. im waiting for my damn tax return, then ill be taking my car to get the cam, gears etc. put in so if you can wait a few weeks, ill post up results for ya.

little_chewy_69

iTrader: (2)

you gotta be shitting me, lol im waiting for mine too im getting like 4,500 back and it's goin for cam, high stall torque converter, and shift kit.
Rear end gears are a if needed application cuz i like the mileage i get. But hopefully i get mine before you do lol. what are you going with for a cam?

00slowredz

i already have all the parts but im usin my tax money to get everything put in and tuned hahaha. its just a baby cam for now cuz i didnt want to buy a stall converter (im switchin it to a 6 spd next winter). same duration as cheatr cam with a little more lift and its on a 112 lsa.

214/230
.601/.613