man gears

[93v8clone]

well i think its time i gear my ol whore get the stock 3.42,s out go to a 4.10 or so ratio .i know i know the 10 bolt wont last long and so on mostly what im askin is what cruise rpm,s were peeps at and what times did they gain before i do this in my car oh and its a a4 4k edge converter and cc503 cam .i know eeps did it i dont need the horror storys and what not .thanks guys

[Chris]

http://ltxtech.com/forums/images/misc/wireless.gif

So you want to know what the cruising rpms are with a auto trans and 4.10s?

[93v8clone]

that and how much did it affect times and so on ,i still drive this car wit the kids and such .but its mostly a late night car

[mrbadlt1]

you dont want 4.10's in an auto car, its to much gear, go with 3.73's

[Tarheel'Z']

i didnt expect it to have 3.42's stock?

[Joker Z28]

Yea stock they wouldnt have 3.42 on an auto

[sk8prk]

Well, I had a 96 WS6 A4, with 4.10's in an otherwise stock 10 bolt. Only other mods were gutted cats, 3" catback, and shift kit, and I was running 13.45 at 100 mph, and 70 mph on the highway was in the 3k rpm range. 10 bolts will hold up alot longer in an auto car than in an M6 car.

[Tarheel'Z']

wow,,3k is a bit much for my taste for the street

[93v8clone]

the car is a 358 ,4k stalled car ,all boltons and so on i dont do much highway drivin was mostly worried about crossin the line in o/d dont wanna do that on the jug

[93v8clone]

right now i have bested a 11.77 with it i think the gear is mostly holdin a lot back my 60ft times are horrible in the 1.7 -1.8 range im comin out of the hole on the jug also

[mrbadlt1]

like i said 3.73 suites the 4 speed auto trans the best

[93v8clone]

y athink ,i just dont see how that little of a jump would help it .but i guess ill dig into it

[mrbadlt1]

3.73 will give you the boost down low that you need without giving up all of your trap speed

[5POINT7]

damn, 3k on the highway, that would suck to dd

[proace4]

i just drove my car back to my place today. its an A4, cammed, no stall, with 4.10s. at 70 i am at 2725 according to my laptop. i was data loggin it a few times on my home. its extremely easy to drive and i got 22 mpg on my way back. doesnt like going slow though... sounds awesome going down the highway right in my LM1's resonating rpms!! i also have the spray and on my street tires i just get into OD. on my MTs i stay in third. Good luck and how did you get 3.42s in your car?

[popo8]

Honestly if you have 3.42's in your car, 3.73's are not going to be a noticable difference.

If you want a noticable difference, do the 4.10's...

(just make sure you really have 3.42's from stock in there)

[bsgreenz]

The only way that car has 3.42's is either some one put a 6speed rear in that car, some one put the gears in it or the dealer messed with the RPO codes when the car is built so the car having them stock is about a 10% chance compared to the 90% work was done. If it's a stock auto car you either have 2.73's or 3.23's..

with a 350ci, CC306, 3400 stall, 3.73's and my 275/40/17's i'm at 2,700 at 75mph.

[sk8prk]

I daily drove that 96 for a couple of years, including trips between Jacksonville NC and Austin TX. It really wasn't that bad, though I think I'd go with 3.73's if I was going to gear another auto car, if only for the milage. And I don't remember if I was in OD through the traps or not.

[93v8clone]

i have pulled the cover on the diff and checked they are 3.42,s in it had the comp tuned for the 3.42,s i know it aint the stock rear in it as when i got it the speedo was way off so i checked my rpo has it as a 2.73 in it now the speedo is dead on thank you n.y.s.p for confirming that for me lololol .like i said i dont drive it daily and it is my toy i have 3 others i can drive if need be .

[popo8]

i have pulled the cover on the diff and checked they are 3.42,s in it had the comp tuned for the 3.42,s i know it aint the stock rear in it as when i got it the speedo was way off so i checked my rpo has it as a 2.73 in it now the speedo is dead on thank you n.y.s.p for confirming that for me lololol .like i said i dont drive it daily and it is my toy i have 3 others i can drive if need be .


"n.y.s.p"?????

[93v8clone]

new york state police lolololol

[popo8]

new york state police lolololol


wow, you think I wouldve figd that one out.....


btw... just do the 4.10s...

[undercoverz-28]

just throwing this out there, i've always been in an m6 so a stalled a4 i'm a bit unfamiliar with, but to what knowlege i do have about cars, my thought process would be that you'd run out of gear with it being so tall, basically slowing you down at the top end causing you to run slower, unless you've modded your motor to spin higher RPM's. basically i think your just gonna run out motor when racing. as far as street driving, thats totally up to you and what you wanna spend on gas. i'm in the dark as to rpms in a stalled a4 on the street.

[93v8clone]

i can safely spool the motor up to 7k .

[undercoverz-28]

i can safely spool the motor up to 7k .
whats your dyno look like? i'd talk to the people that did your motor or where ever you h/c combo came from and see what they recommend i know when doing up grades the cam, stall, gears and tire size all work together to effect 1/4 mile times, and if any of those don't work well with the others your essentially slowing your car down. bigger isn't always better. having a car dialed in correctly will net your best results. how much track time vs. street time does the car see?

[93v8clone]

mostly late night street time lolololol.very little d/d drivin

[ws6nighthawk]

let me ask this question. how are 4.10's on m6's?

[undercoverz-28]

mostly late night street time lolololol.very little d/d drivin
i'd go for it then


let me ask this question. how are 4.10's on m6's?
i loved my 4.10's in my last car. trying to get one now since my current ring and pinion is shot. just normal driving i'd start off in 2nd, skip 3rd and go to 4th, then cruise around at 45 mph in 5th. i never retuned to fix the spedo or the tach though.

[GreenZ96]

some say 3.73, others say go with the 4.10's. split the difference and throw in some 3.90's?