Not a bad E/T with a 2.3 60foot. I got a 13.4@101 with a 1.85 60 foot with the 2.97 tranny. Not I can hardly launch the thing cause it boggs its self to death. I have to launch at 3500-4000 and slip the hizzle out of it. Thats what killed my CF/DF clutch. SPEC stage 3 is on the way!!! And some 4.10s im thinking.

 

Well, not the entire track but where it matters Shifts take a toll on the rear end as well. The shock loading kills these things. At first it simply opens up the tolerances, which increases the shock loads, and on the vicious cycle goes. I've seen rear ends that weren't grenaded at the track but on the street, and not on hard launch either.

I could care less about my ET. My first trip to the strip was over the summer and, while fun, isn't really what I'm saving my pennies for

I'd rather get my big brake kit installed than spend money on a 60' time

 

Personally, I wouldn't go higher than 3.73's. I do a lot of interstate driving and 4.10's would put me at too high of an RPM between 70 and 80 MPH in 6th.

3.73's are still ok at those speeds.

To see that max benefit of new rear gears you also need to increase your redline. You will probably do this anyways with the CC306 and RR's. If you don't increase your redline past 5700 rpm, the new rear gears will not help any after 1st gear because the max speed of each gear is less so the new torque in each gear is affective for a shorter speed range. They will still help a lot in 1st gear, but if you already have traction problems in 1st, gears may be a pain.

Dan

 

Ya know , I have know alot of people running the eaton posi-10 bolt and im shocked that there isnt many people running them . They are damn strong. one of my friends has a 12 second LT1 and his car Gets alot of abuse . ALOT and he has yet to break it . He broke 2 stock rear's before buying this one .

 

Yeah, I have a buddy with an auto 94Z that is running 12.4 and pulling 1.7 60 foots on an Auburn diff and 3.73s and his rear is holding together fine on a set of 17 inch drag radials.

 

Automagic trannies make ALL the difference. In comparison to a clutch the torque converter is like a big pillow to the rear end Load the bitch up and let her fly off the line if you've got an A4

 

yeah but hes not easy on this one. Flashing a 3600 Vig converter isnt easy by any means on a rear.

 

It's still a fluid coupling and can't compare to the impulses an M6 car can deliver. If you don't want to believe that, I guess we'll agree to disagree

 

No no Im not disagreeing here, I was just adding my 2 cents. I deminatly agree that an M6 is alot harder on a rear than an A4. Just my nature to compare apples to orages sometimes. No disrespect intended.

 

None taken, bud

 

I put 3.73's in my car after having, 3.42, 4.10, 4.10, 4.10.... If I did it again... 4.30's would be in there now cause of the head/cam swap

 

run the 4.10 gear
1 trapped 120 on my old setup
H/C/NX
62-6400 RPM in 4th on 26" tires

80mph is around 2200 rpm in 6th

 

maybe a dumb question, what is the difference between m6 and t56?
my buddy had a 96 6 speed formula, went from 3:42's to 4:10's. he said it was about a 500 rpm difference..

 

m6 and t-56 are the same thing bro.. Just a different saying..


I've got 3.73's in my M6 and I love em, I felt a little difference over the 3.42's and I like being able to use 6th gear more.. I dont go to the track often and I'm on the highway alot with city driving also. thats why I chose against 4.10's....

 

Yup M6 and T56 are the same, you will see that alot on here along with A4 which means Automatic 4-speed and M6 just means Manual 6-speed. Thanks for all the info and trap speeds. I think my mind is made up and Im gonna go for the 4.10s. Thanks again guys for all your help.

Jeremy