99silverWS6

iTrader: (3)

I already did a search on this and did not find anything. I was wondering how much RWHP a stock 10 bolt will hold with Nitto DR's, M6, and 3.42 gears. I am getting a cam soon and did not know if my rear end will handle it.

Thanks

2000TransAmWS6

iTrader: (12)

my gears wouldn't hold 317 rwhp without a girdle on street tires,... my girdle has held 343 rwhp on 3.73s and BFG DRs.

hope that gives you some kind of help.

GuitsBoy

iTrader: (4)

It all Depends on how you drive the car. Some people have an abnormally strong 10 bolt from the factory while others have really weak ones. If you feather the clutch on launch, and slip the clutch on every shift, you'll probably have luck for a while. Now on the other hand if youre doing clutch dumps to launch, even if only from as low as 2500 RPM, and if you bang through gears with careless abandon, you 10 bolt probably wont make it very far.

Its not the horsepower that your car makes - Its the abrupt torque spike when you dump the clutch. Just like a 5 pound sledge can apply 1000's of pounds of pressure at the crushing blow at the end of a swing. Visualize whats going on with your car. The engine is spinning quickly and has a bunch of built up momentum, you drop the clutch and it grabs hard, the clutch springs try their best to absorb shock but they can only do so much. The transmission takes and multiplies the torque spike by 2.66 in first gear. The sudden rotation of the driveshaft spins the pinion gear, which spins the ring gear and carrier, while mechanically multiplying the already staggering momentary torqe spike by an additional 3.42 times! This rotation is carried out to the wheels by the axles and the tires try to rip out the pavement. If the tires hook up and dont spin, then the internal components of your driveline have to bow, bend, flex and twist to absorb the shock of 9.1 times the force of the engine's momentum being instananeously slowed. Dumping a clutch is not so different from taking a sledge hammer to your car after all.

Kenafin_02TA

Exactly what Guitsboy said....there's not a set rwhp where the 10 bolt will fail. It comes down to driver, car, and some pot-luck. There's cars in the 11's on the stock original rear...the ones I know of are a4's...but a lucky m6 might be able to do it. There's stock cars that have broken their rear.

The Firehawk..with 3.42 gears...Nitto DR's...McLeod clutch, airlid, and cutout...completely destroyed the rear..and snapped the driveshaft in the process on a mostly stock car. And this was her 6th track pass ever...3rd with the McLeod. The tires hooked...and that was it. The rear was done.

I'd just keep in mind, especially with adding a cam...that there's a chance it could break..and have a plan ready for when it does (a spare 10 bolt...money for a 12 bolt/9"..a friend with a trailor. )

99silverWS6

iTrader: (3)

Thanks for the info guys.

Will a girdle really help that much?

5POINT7

I've heard a TA girdle is the cheapest strength mod to do to a rear. If you don't have any money, the girdle helps with stability and keeps the rear from walking.

BigPlanTransAm

well, when i broke the rear all i had was 9,000 miles, dr's and a converter.

imos-ss 01

my stocker held up with h/c...and i abused the hell out of it with the 4.10's. alwys dumping the stage 3 on bfg drag radials....guess i have a good one...

02SOMWS6

iTrader: (6)

With just bolt on's-headers,gears,lid,flowpack, gutted hood ducts, and a set of MT ET streets I snapped a stock axel in half.The diff was fine , that was with less than 1,500 miles on the car with about 20 passes on it.With a stick you are always at risk of breaking something at the track.Start saving for a rear if you want to go to the track all the time

obe1 95Z28

As stated above, your driveshaft may not handle the sticky tires. I've got a Lingenfelter 3.5" aluminum driveshaft for sale on ebay, item #7922841880

Mooobunnny

iTrader: (1)

I broke my 2.73's in a stock A4 on street tires so you can break them with very little power....

2000TransAmWS6

iTrader: (12)

like the other guys touched on, considering the alternatives its a cheap way to make your 10 bolt last longer.

i do know one person that made his 10 bolt last to 12.007, the next fastest M6/10 bolt that i know if is at 12.70. the only 10 bolts that i know of that are faster (than 12.007) are in automatics. *those mentioned 10 bolts do have girdles*

OvalHunter

I have went 12.51 @ 115mph on stock tires and rearend

Redlinez

iTrader: (5)

12.38 on DR's and 12.40 @ 117.3 with 4.10's no cover or anything. Of course, I'm sure I'm on borrowed time. It's all in how hard you launch and hook. I would imagine most can handle high 1.80's ok. Much lower than that is some serious gambling. Just have $2500 set aside.

2MuchRiceMakesMeSick

Its like saying how many tickets do I have to buy before I win the lotto. No one knows its just the (bad) luck of the draw.