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View Full Version : 4.10 or 3.90 with T56 / LS6


Bowtieracing
05-29-2006, 01:40 AM
Hello!!

What is your recomendation for rear end ratio for a street/strip use . 4.10 or 3.90 ? Or is there really a big difference? I dont want the first to be too short.Or can it be too short at all :cool: My tire is 25,5" tall (275/35/18)

Plese share your experiences .

Bowtieracing
05-29-2006, 01:07 PM
Anyone with T56 and 4.10 s ? :_paranoid

rocketman
05-29-2006, 02:44 PM
I have 3.73's in my 94 z with a t-56,run great.1st is just right for the street,I have run 4.11's in it and it's nice to but 1st gear is damn short.

Datsbad
05-29-2006, 03:21 PM
I have 4.10's and a T56 , it rocks .

Bowtieracing
05-30-2006, 12:05 AM
I have 4.10's and a T56 , it rocks .

Do you think 1st gear isnt too short ?

Mkelcy
05-30-2006, 12:19 AM
Do you think 1st gear isnt too short ?

An LS1 T56 first gear with 4.11's, a 25.5 inch tire and a 6,000 rpm redline should be good for about 40 mph. How much do you want?

4mm
05-30-2006, 12:29 AM
I have 4:11's +T56+LS6 and I wouldn't have it any other way. I can lift my right front tire launching!

Bowtieracing
05-30-2006, 01:05 AM
An LS1 T56 first gear with 4.11's, a 25.5 inch tire and a 6,000 rpm redline should be good for about 40 mph. How much do you want?

Thanks Mickey!

I have no idea what i "want" . I am just after a good ride. Yes i love to spins tires and drive hard as we all do , but at the same time i am after a good driver. If 1.st is too short its pain to drive at the city.

rocketman
05-30-2006, 10:51 AM
I am not saying 1st is bad,I am just saying when you are on the wood that 1st runs out real quick.

jannes_z-28
05-30-2006, 12:09 PM
Well, if you think your first gear is too short you can always start on a higher gear. Like Clarkson did on Top Gear when he started the Z06 on fifth.

Jan

Bowtieracing
05-30-2006, 01:17 PM
Well, if you think your first gear is too short you can always start on a higher gear. Like Clarkson did on Top Gear when he started the Z06 on fifth.

Jan


Thanks Jan - or get a powerglide :eek:

rwhite692
05-31-2006, 12:43 AM
I had a 3.90 behind my T56 and 383 (about 450HP or so) and felt it was fun but too short. I sometimes would just start off in 2nd...(which was fun too!)...Anyways my new rear has a 3.73.

SIRoadrnr
05-31-2006, 08:22 PM
So my choice of 3:70 (9 inch Ford) in my Monte/LT1/T56 was good? I was concerned with a short first on the street, and useless 6th on anything but wide open highway.

USAZR1
05-31-2006, 09:27 PM
I'm running a D&D T56 and 4.11's in my Fab 9. First gear is fine,definitely not too short. The 3.50 cogs I was running didn't allow for a very useable 6th.

MarkM66
06-01-2006, 10:59 AM
I'm running 4.11's behind my T-56 and I think it works out great.