Stock Rear

[See Me In My GTP]

Hey All,

I'm feeling impulsive and just plunked some money down to throw a D1SC at 8lbs on the car with 8-rib and 4.5" intercooler. I run 315 Nitto555s out back currently, car has 65,000 miles and is nice-weather driven ~2,000mi a year. Mainly a fun street-car with a handful of annual passes at the track for grins.

My question is, and I know there's some variation here, but how much time does that rear end have? If I stay away from nightmarish launches and just enjoy the higher RPM power can I get through a summer? I want to upgrade the T/C, trans and rear all at once, and it's just too much to invest along with the power upgrades in one shot.

I guess I just figured if I blew the rear, it would force my hand to replace it with a 12-bolt, and it wouldn't be the end of the world if the car sat for a while, but I'm not sure if I should even expect the rear to handle this long at all.

Any thoughts? Will I make it home from the shop? haha.

[c5z28]

Look up myws6 on streetfire. He has over 500rwhp on the stock 10 bolt. But you will never run from a dig ever again. It would certainly take autox or road racing a lot better than drag racing-still probably end up frying at least the clutch packs at some point.

[Y2KPewterSS]

If you stay away from sticky tires and hard launches, you have some time with it. If you go to launching, especially with sticky tires, you can kiss it adios much sooner rather than later.

[35th-ANV-SS]

It's a crap shoot. Someone on here is cutting 1.5X 60' times with the 10 bolt...others have been through several with stock power.

[rc74racer]

It's a crap shoot. Someone on here is cutting 1.5X 60' times with the 10 bolt...others have been through several with stock power.

Exactly it's a total crap shoot. No one can tell you definitively whether or not it will survive. Personally I'd upgrade the entire drivetrain before spending any money on FI, but sounds like it's too late for that. I'd just hate having all that power and not being able to use it properly. Once you start throwing that kind of power at your stock drivetrain everything is a ticking time bomb IMO.

[See Me In My GTP]

Thanks for all the input, guys. I think you've confirmed what I was thinking, but I do feel better that with some judicious driving I can put off the drivetrain for a little while.

The car will be done the first week of September, and since I'm in Chicago that only leaves about two months of driving and I don't put a ton of miles on. I will upgrade the stall, trans and rear all at once in the Spring right before it comes out of storage based on the feedback here.

To be honest, it's probably best because this will force me to adjust to the power slowly rather than waking up one day with an entirely new car and flogging the hell out of it, losing control, etc.

[Ed Blown Vert]

If its an A4, it could last a while. Mine lasted till just a few months ago.

[psychowette]

Depends on your traction and how hard you launch really. Some people run 10 bolts and have luck but dont run slicks or drop it hard from a stop. there are many ways to help them live.

[See Me In My GTP]

Car's going in for install in just under 3 weeks, so I'm definitely getting excited. It's an A4, and the I have 315 Nitto 555s out back so it hooks as long as I feather the throttle a bit. Full throttle at launch turns things into a burnout contest as it is. Hard downshifts have me every bit as concerned as a good launch.

I'm almost positive an upgraded drivetrain is going in early Spring 2011 anyway, I just wanted to make sure I could enjoy some reasonable, spirited driving the rest of the summer before it goes back into storage. I'll probably get a September visit in to Route 66 just to see what it's trapping and not launch too hard. I'm hoping the CSC will be a little gentler on the drivetrain since the power comes on with RPMs.

Once the new trans/stall/rear goes in, then some M/Ts go on and I can really put that power to use.

Thanks again for all the input.