johnster

iTrader: (27)

head/cam car with ported fast 90 A4 4k stall which one would be better 3.73 or 4.10 going to put a 100 shot on the car 2 thanks john

the cam is 240/244 6xx 112

johnster

iTrader: (27)

one more thing,, i have 3.23s now im thinking its a waste to only go to a 3.73, money wise!!

koolaid_kid

iTrader: (21)

The general rule of thumb is 3.73 for A4, 4.10 for M6. N/A, of course.

red35thss

I recently got 390's in my 10 bolt with my A4 but I have a stock stall still so I can't really tell you how they would do with a stall. They are still manageable on the street and are a good split IMO between the 373 and 410's. It sits around 3000 rpms at 80.

Elliott's94Z

iTrader: (12)

Going from 3.23 to 3.73 is not a waste at all. I had 3.23 and went to the 3.73 and it was night and day difference. If you mainly drag race the car and do very little Daily Driving I would prob do the 4.10. If it mainly a DD go with the 3.73's

Sicko

iTrader: (1)

3.73s period...

DannoWS6

iTrader: (5)

What size tire are you running? And whats your shift point set to?

johnster

iTrader: (27)

26 inches shifts about 6500

DannoWS6

iTrader: (5)

4.10 is too much on the shot. Either go with a 28" tire, or or stay with 3.73's.

I run a 3.91 and a 26" tire, I also shift at 6500, I'd probably just get away with a 100 shot.

With the 26" tire you're only gonna stretch to about 122mph at 6500rpms. You're probably trapping about 118 now right?


*Edit, although with a cam like that I'd be shifting like closer to 6800-6900.

johnster

iTrader: (27)

well i only got a mail tune on the car rite now, getting a dyno tune soon as i change the gears,, so my tuner mite bump the shifts up,, ant ran it at the track yet, been takein it easy on her untill i get a dyno tune,

DannoWS6

iTrader: (5)

Hmm I'd probably keep away from the 4.10's if your gonna spray. It's a close call. If you street drive the car much it's another reason not too. I even think my 3.90's suck on the hwy.

PewterScreaminMach

iTrader: (7)

3.73s, especially if you're going to be hitting the nitrous.

And 3.23s to 3.73s is absolutely NOT a waste of money.

johnster

iTrader: (27)

thanks man think ill go 3.73 its not my dd, on a 100 shot 4.10 mite be to much

johnster

iTrader: (27)

ok guys, cents yall say it ant a waste of money, im going 3.73

LS1Silverado05

iTrader: (41)

Yep...good choice. 3.73... You will be glad you did!

VenomTA

Not trying to highjack the thread, but since everyone is recommending the 3.73s...which are the best to purchase (longevity and least amount of whine?)
-Matt

87silverbullet

iTrader: (11)

Richmond or Motive. Richmond makes GM gears.

LS1Silverado05

iTrader: (41)

I have run Motives and Richmond.... The motives were much quieter...both held up nicely.... Dont forget having them properly set up is just as important as picking the right gear....

Um...are you sure about that?...

4150

iTrader: (13)

AAM is the OEM supplier for GM, I've got AAM 4.10's in my 10 bolt and they are nice and quiet.

Judge Smales

iTrader: (13)

How many miles do you have on the 4.10 gears?