PDA

View Full Version : 3.73's or 4.10's in 01 trans am??


HS PROFESSOR
07-30-2006, 10:17 AM
Just picked up an 01 ramair trans am with an automatic trans.It has 3.23 gears now and i'd like to wake it up a little bit. Whats the gear of choice for an automatic car ???? The car is just a cruiser and will never see any mods other than a shift kit and gears. also who makes the best gears for these rears,and what has to be done for the speedo ???

thanks much.........

bob

NviouSS
07-30-2006, 11:02 AM
have you considered getting a larger stall? i think that will help to "wake" it up some. maybe something in the 2800-3400 range.

Black93Z
07-30-2006, 11:44 AM
if you absolutely want gears most people suggest 3.73's for an A4, 4.10's for an M6, but... if you dont drive it everyday, its going to be a pure drag car and you want to get off the line like a mofo, id suggest getting a 12 bolt then decide what gears you want...

CamTom12
07-30-2006, 03:19 PM
if it's just a cruizer, I'd recommend:

shift kit
3.73
3k to 3500 stall
and maybe some longtubes and TD's for sound, but I know you didn't ask about those :)

superGMman
07-30-2006, 05:46 PM
if it's just a cruizer, I'd recommend:

shift kit
3.73
3k to 3500 stall
and maybe some longtubes and TD's for sound, but I know you didn't ask about those :)

My thoughts exactly.

See you got the beastly 22-RE too(defnitely a force to be reckoned with on the streets).

HS PROFESSOR
07-30-2006, 06:18 PM
Thanks guys, I already have a 10 second firebird,i'm not looking for another :D what i am looking for is a little more power and a crisper shift. I think gears and shift kit is all i need. I wouldnt mind getting a little more mpg either !!!! Exhaust is out of the question. I dont like em loud. A converter is an interesting thought...... how bad does it effect the mileage and drivability ??? remember..........DAILEY DRIVER.


thanks much


bob

CamTom12
07-30-2006, 07:20 PM
Driveability in my friend's 4k stalled car is awesome!

...but it's a little high of a stall for a no-track DD :lol:. city mpg went down a little, highway stayed the same. If you have a buddy with a stalled auto car (doesn't so much matter what it is) I'd ask him if you could take a 'wussy-foot' trip around the block to feel it out. Part throttle feels a little 'squishier' the larger you go on the stall rpm, but once you start leaning into the gas it'll feel a lot better :). I personally prefer a stalled auto over a stock TC (all my cars are manual, thank goodness hahaha. EDIT: forgot about the T-bird... yeah, it's been sitting in storage that long :lol:. It's getting a stall, though :D)

As far as exhaust goes, there's a lot of good flowing exhausts that are pretty quiet, but that's really a personal choice if you want to do it or not.

And as far as my 22-RE goes, I need to do the !plugged cat mod before I can really find out how beastly she is :lol:

98ls1blackbird
08-20-2006, 09:31 PM
Why dont you just try a good converter first. You may not need gears. I just put in a 3200 Vigilante and picked up .4 in 1/4 mile times, and that is with a 2.73 gear. On the street it is awesome, the only other mod is a lid. Ive heard either a gear or a converter will give a good improvement, but both together will not be that much more improvement. Good luck with your choice.

mrcadillac
08-29-2006, 06:53 AM
Ive heard either a gear or a converter will give a good improvement, but both together will not be that much more improvement. Good luck with your choice.

:bs:

going to 3.73's from 2.73's with that convertor willgive you ATLEAST, .25 in the 1/4. IIRC, Gears help a convertor more than a convertor helps gears.

Not to be a dick.

Anyways. AAM makes just about the best gears. They are OEM quaility. I would think that 3.73's will suit you pretty nice with about a 26" tire. But steping up to bigger tires, like "20's", that put you closer to a 30" tire, the car would like 4.10's. A high stall convertor is also a nice option, as it doesn't effect highway milage once it locks up. and only takes 1-3 MPG off the cit milage.

If you wanna improve MPG, a catback is a must, and adding headers is even better. It doesn't have to be loud. Even dynomax/summit turbo mufflers flow very well, and are quite controlled. Just keep away from flow(not the)master.

LS1Insyde
08-29-2006, 07:02 AM
try 3.42s a friend of mine put them in his auto TA and he loves them. still very streetable. but i wouldnt going higher then 3.73s. 4.10s are for the M6s. although if i ahd another car could drive id put 4.56 gears in my car. :)

mrcadillac
08-29-2006, 08:51 PM
the difference between 3.23 and 3.42's is so small, that it's hard to justify doing. it's about a 6% difference. meaning if your crusie rpm is 1500 at a givin speed, is about

Gears RPM ........ Difference . Starting gear
3.23's : 1500 ...... 0% ......... 9.88
3.42's : 1588 ...... 6% ......... 10.47
3.73's : 1732 ...... 13% ....... 11.41
3.90's : 1811 ...... 17% ....... 11.93
4.10's : 1904 ...... 23% ....... 12.55

I forget how tires play a role, but I think 11 is about perfect for a 27" tire.

It's nice to know facts when making a decsion like this.

Gear installs run about $200-400, plus gears($175), thats about $500 in the middle ground. A convertor on the other hand can be install be most people, and tend to run about 500+ for a quaility 9.5" unit. I would also think at this point the convertor of about 3000 would drop about .5 in the 1/4.

taillights
11-03-2006, 01:31 AM
i do believe summit has some 3.90s that will fit the stock rear end.
that may be a thought. although i did hear they were nosier than both the 3.73 and 4.10s. hopefully somebody can verify something i've said.

Zupercharged28
11-14-2006, 02:23 PM
supercharged A4 lt1 camaro with 315/35's on the rear, what kind of gear woudl be preferred with a 3200-3600 stall?

Zupercharged28
11-14-2006, 02:23 PM
p.s. not to steal your thread sorry man!

gettinthere
11-14-2006, 02:49 PM
On an A4 LS1 a 4.10 gear is waaaay too steep 9 times out of 10. 3.73 is really the biggest you want to go. Maybe 3.90, but that's pushing it.

NHRAMAN
11-14-2006, 02:53 PM
Thanks guys, I already have a 10 second firebird,i'm not looking for another :D what i am looking for is a little more power and a crisper shift. I think gears and shift kit is all i need. I wouldnt mind getting a little more mpg either !!!! Exhaust is out of the question. I dont like em loud. A converter is an interesting thought...... how bad does it effect the mileage and drivability ??? remember..........DAILEY DRIVER.


thanks much


bob

You already have a 10 second Firebird ...but you don't know about gears and stalls.??? :homer: SORRY.... sounds fishy to me.:lol: