hotjohnnyls1

Whats Up Everyone I have a 2002 z28 a4 this car is my dd and i am not sure on picking 3.73 gears vs 4.10s while i wait for my check to come in i am seeing if i should go to 4.10s I am not sure how much of a difference its going to make if i get the 4.10s instead of the 3.73s e/t wise. my current setup is
Pacesetter Lt's
3' Flowmaster Single Chambers with 3' piping
Slp Lid and Cai
My Best 1/4 mile time is 13.3 off the bottle at 109 mph
I take this car to the track as much as i can mabye a few times a month i am just trying to figure out what would be best for my e/t wise
thanks for all the help!

Intercooler2

iTrader: (24)

4.10's is a lot IMO for a DD. I have 3.70's and it is still kind of annoying on highway trips. If you are looking for all out ET's then go for the 4.10's... that is if you don't do highway much or care about MPG/RPM's.

tals7

for dd 3.73 is the gear for you.

hotjohnnyls1

thanks guys but do u really think that getting the 4.10s will make that much of a difference in the 1/4 mile due to traction issues? it will be a lot harder to hook up. than the 3.73's

1999Z28

do the 4.10s...you won't regret it.

look at my sig.

Johnny-LT1-runner

iTrader: (15)

I agree 4.10's + Auto = fun as hell!

01ssreda4

iTrader: (96)

^^^For johnny, 2.73s to 4.10s created a whole new animal.

Mean87SS

iTrader: (21)

Will I run out of RPM with 4.11/4.10 gear on a 26" tire with an auto car..??

01ssreda4

iTrader: (96)

^^^depends on what you are trapping, can you lock your converter at WOT (triple disk), you know stuff like that.

Mean87SS

iTrader: (21)

Trapping ~118 or so...

My converter does lock at WOT...

01ssreda4

iTrader: (96)

You should be fine with a locking converter, That gives you some mph to work with. You can use the gear calculator to find out your max locked speed in 3rd gear.

hotjohnnyls1

hey guys thanks alot. for all the help i cant wait to get these gears in and go run it at the track!

hotjohnnyls1

hey one more thing my 10bolt wont last that good launching off it hella hard with the 4.10s huh that was kinda a dumb question. what do u guys think would run better for me getting a cam or the 4.10s? i was going to get the Thunder Racing TR 224-112 the cam specs are 224/224 .563/.563 112 LSA THANKS!

Nitroused383

iTrader: (10)

I don't really think you will notice a difference between 3.73's and a 4.10's with a stalled auto. Its not going to be fun to drive on the highway either. A cam will gain you a hell of a lot more than 4.10's. I would think the TR224 should give you a good 3-5 mph improvement. I would look into the EL Torro 230/230 cam there has been some great results with that cam and it still drives good on the street.

01ssreda4

iTrader: (96)

Gears add way more SOTP fun then cams like tr224 are. I should know I install gears for people and I should know bc I have a tr224.

hotjohnnyls1

lol thanks