4.10 in a a4

anyone have one can you tell me rpms at 70ish and other expericences how fun is it track times anything you would like im thinking bout it but need to be convinced

You need to be unconvinced. Stock internal LT1 with stock rev limiters don't need to be buzzing that high. Your powerband is too narrow. You'll run out of steam too fast and drive yourself nuts. I wouldn't go any higher than a 3.73.

does everyone agree with that ?

Yeah, I like my 3.73s at the track and on the street. It turns around 2600rpm at 70mph. The 4.10s'll get you up around 3000rpm.

You'll have folks tell you 4.10-11's in A4's is the only way to go. But its also the only way to lose all hope of traction, gas mileage, and low drivetrain wear. I'd say do 3.73 if you have the traction to support it. What gears do you have now, and to save you the trouble, can you select 1st or second on your shifter?

-Dustin-

69mph @ 2600rpm

http://www.f-body.org/gears/

what happens if you have a 3000-3500 stall?

what happens if you have a 3000-3500 stall?

when you brake torque, your wheels dont spin till ~2800-3000rpm

what? simplify that for me im retarded lol

what? simplify that for me im retarded lol


Hold down your brake at the line... bring your RPM up till you feel your rear wheels slipping.

would it work better with a 4.10 gear or 3.73?

3.73s or 4.10s with a 3000+ stall will probably have trouble hooking on drag radials if youre making any kind of power lol

4:10's in a a4? no way dude HIGHEST i would go is 3:73's go 4:10's if you plan to Serrious race car and are only gonna take the car to the track or do smokey ass burnouts

lol so its not possible to have 4.10's on an auto with 3000+ stall?

It's possible, it just won't be as streetable.

I have an A4 with 4.10s. As it has already been mentioned, say goodbye to traction on the street without any sticky tires. They are fun to drive but get REALLY annoying on the highway especially with loud(er) exhaust and a cam.

I have an A4 and i'm going to 4.10's fairly soon.

Also A4, 3000 stall, 4.11s.

It's perfectly streetable and drivable, but WOT with 400hp and 4.11s isnt going to hook through 1st and most of second even from a roll with 4.11s.
Driving anywhere on the highway above 70mph blows period.

Gas mileage for me around town didnt change much. I still get around 20 on the highway too.

At the track with some stickies though, you cant beat em. Picked up 4 tenth going from 3.23 --> 4.11

4.11/A4/3200 Lock up

2700 RPM at 70 mph locked up,I drive 300 miles round trip to track every weekend.[23 mpg]

Street,it spins 1st,2nd and part of 3rd then hooks up.

I find it very liveable.

Had M6 with 4.11 and got a little better gas mileage,about the only diffence[and 600 rpm cruising]

Yep, same here. 3.23s - 13.012 at 106.66 with a 2.1 something 60'

4.10s - 12.687 at 109.33 with a 1.87 60'.

This .3-.4 gain is assuming traction though right? Although the thought of gaining .4 from just gears is entertaining, especially 3.23's.

-Dustin-

I don't know, I was running slicks at the same PSI and the same amount of burnout with both 3.23s and 4.10s but I never managed to get a better 60' out of the 3.23s. Maybe my 3.23 rear was bad, who knows.

EDIT, I forgot to mention that I have a crap SLP 2400 stall which is probably what's causing the bad 60's, so I guess the improvement is from gears after all, but I would still recommend 3.73s for daily driven A4s. (I drive mine very rarely) 4.10s for 6 speeds.

Just curious cause I cut a 2.0-.1 60' on stock GSC's my first time to the track, no burnout. Needless to say after a bit of modding the GSC's are no longer :D I better start talking myself away from these 4.10's and into better traction.

EDIT: I figure the 2800 SLP is crap too then huh? Alright thanks for the additional info.

-Dustin-

A4+4.10=no traction. Hey I think I actually have a post with the same title. :D

Judge for yourself:
burn (http://www.madz28.com/files/burn1.mpg). This was on 275 tires with my small stall and by letting off early (not much distance).

A higher stall with a nice STR would probably destroy those tires. ;)

I have 4.10's with a TCI 3500 stall/2.5 STR converter and its a blast. It does get kinda loud on the highway but I get the same mileage in the city as before(crappy ;) ) and lost on 2-3mpg on the highway oddly enough. Id try and match the gear by looking at to your cars mods(present and future) before you decide. Also, the gear calculator posted earlier in this thread is a great tool to have in your favorites...it is for me anyways. :D

Big gears can get traction when it counts,on street tires even!!!!

http://home.houston.rr.com/gossip/SMOOKEYHALL3.jpg

a4 + 4.10 = lots of fun... i know someone around here with 4.56s in there a4 but they dont drive it much and they have NO traction. Think back to the old days when guys would run 4.10s in the a3s...my sisters 73 chevelle spins 3k rpms at 70 with 3.23 gears i think dont remember for sure.

Big gears can get traction when it counts,on street tires even!!!!

http://home.houston.rr.com/gossip/SMOOKEYHALL3.jpg


You cant post pictures like that without a diclaimer, the midlength/shorty guys will have a stroke! :D EDIT: This kind of performance can also be obtained by mids or shoties. Whew, good thing I caught that for you, nothing like header affirmative action.

Madwolf: I saw that thread and video, way to go, ruin the storage place's parking lot :rolleyes:

-Dustin-

a4 + 4.10 = lots of fun... i know someone around here with 4.56s in there a4 but they dont drive it much and they have NO traction. Think back to the old days when guys would run 4.10s in the a3s...my sisters 73 chevelle spins 3k rpms at 70 with 3.23 gears i think dont remember for sure.
Yea, my 70 Olds 442 has 4.10's with a TH-400. Never have been able to keep a set of tires on the thing.

3.73s or 4.10s with a 3000+ stall will probably have trouble hooking on drag radials if youre making any kind of power lol

There are guys here with stock suspension and DR's with 4.56 &5.13 gears running 1.30 60". A lot more power than stock so thems with 4.10 that won't hook--ya ain't leaving hard enough.

The TH350 and TH400 have 2.52 and 2.48 first gears respectively, closer to what the M6 has. The 4L60E has 3.06, big difference.

i say go for it i love the 4:10's i had them for about 1 1/2 to 2 yrs then the tranny took a crap. so now i'm going TH350 it should be interesting going down the road with this tranny and gear setup. lol oh well the gas stations will get to know me very well.

i'm getting 3:73 gears with a new rear end cover of course :D and a 2600 stall.

my impala has 4.10s with a Vigilante 3200+ stall converter in the 4L60E. I'd say that it hooks pretty good considering the low power and high weight. I got a 1.699 sixty foot the last time I was at the track :D I was on 28" street tires even.

The best that I was able to do with 3.73s was a 1.82 sixty foot with 26" ET Streets.

will i get about a 10 HP increase with cutouts on a random tech cat back system and stock y pipe and headers?

i am also running 4:11s 2800 vig stall in my auto .it isnt that bad the only problem i have is the trans go shift kit set to race it spins the tires all to hell from 1st to 2nd then rattles your teeth from 2nd to 3rd.but if i launch in 2nd it hooks real well and then barks in 3rd

i am also running 4:11s 2800 vig stall in my auto .it isnt that bad the only problem i have is the trans go shift kit set to race it spins the tires all to hell from 1st to 2nd then rattles your teeth from 2nd to 3rd.but if i launch in 2nd it hooks real well and then barks in 3rd

How can you launch in 2nd with an A4, manual shift valve body?

I run a 3200 on 3.23s, I cant hook street tires at all, any try at flashing the converter on street tires from a dig will get the car kinda sideways prety good. I cant imagine throwing in gears to the mix and hoping it would hook any better. From what I have seen 3.73s work great in these cars with the auto.

yes sir i have a manual shift valve body works great

I've got 4.10's with the A4 in my car:thumb:.

Believe it or not, I got my BEST 60' time EVER with street tires!!!!:bow: :D With my BFG DR's, I only cut a 1.94 I think, vs. the 1.92 I got with my Hankook streets!!:lol:

Honestly, I haven't lost that much traction:think:. You see, if/when you break the tires loose with high gears (3.23's or 2.73's) then they are spinning faster in 1st gear per given RPM. SO, even though they may break loose with 4.10's, they technically aren't spinning as fast, and I've found they'll hook back up quicker and easier!

Also, surprising as it may seem, I really need a stall:rolleyes:. The reason for only cutting ~1.9x 60' times is that my car hooks too hard off the line, and bogs down the engine for the first couple seconds. A stall will fix that for sure:thumb:. Also, I still ran ~13.5 - 13.7 on a couple Friday nights at the track when the conditions weren't so good, but as you can see in my sig, I cut .4 seconds off my best stock times in good conditions;).