Broken Axle
TECH Addict
Joined: Nov 2001
Posts: 277
Likes: 0
GM engineers figured out that if they ran 2 different diameters, a failure was less likely.
I THINK they first implemented it with the CTS-V and then as original equipment for the ZR1.
Other carmakers pull all kinds of torque-mitigating tricks to eliminate axle tramp, but GM's performance division got to the root of the problem. Besides using a cast-iron diff casing, upsizing the propshaft, and reducing driveline lash with CV joints, GM also found a way to defeat the phenomenon itself. A slipping wheel will wind up its half shaft until the wheel hooks up, at which point it sends that force back through the shaft to the opposite side, setting up a spring-like effect through the axle. GM unbalanced the half shafts (the left side's diameter is 55 mm, the right side's is 35 mm) to decouple the forces and eliminate the spring effect. The result is a car that launches like the space shuttle. Power has nowhere to go but down to the ground.
To further mitigate power hop, Chevy has also fitted the ZR1 with axle half-shafts of different diameters (33mm on the right and 40mm on the left).
The rear axle also is stronger in the Chevrolet Corvette ZR1 and features asymmetrical axle-shaft diameters that were developed after careful testing to provide optimal torque management. The axles are also mounted on a more horizontal plane that correlates with the wider width of the rear wheels and tires.
Last edited by 427C5; Jul 29, 2009 at 07:38 PM.
is this right? you have a H/C nitrous setup on your new camaro? could be why youre breaking stuff.
Thanks for the info on how to post pics. I will post some as soon as we put it on the lift to pull it apart. I spend more time modding my cars than messing on the computer.
As fare as the Last comment It is heads cam nitrous but all of my other cars make alot more power and didnt break in 700 miles with my wife driving. Chevy has always used weak drivetrain. My Cobra made 780 rwhp and isnt the lightest car on earth and the irs managed to live for 2 years. Its not a big deal found a better part and will fix it when they show up.
As fare as the Last comment It is heads cam nitrous but all of my other cars make alot more power and didnt break in 700 miles with my wife driving. Chevy has always used weak drivetrain. My Cobra made 780 rwhp and isnt the lightest car on earth and the irs managed to live for 2 years. Its not a big deal found a better part and will fix it when they show up.
Collections Ban
Joined: Feb 2009
Posts: 204
Likes: 0
Thanks for the info on how to post pics. I will post some as soon as we put it on the lift to pull it apart. I spend more time modding my cars than messing on the computer.
As fare as the Last comment It is heads cam nitrous but all of my other cars make alot more power and didnt break in 700 miles with my wife driving. Chevy has always used weak drivetrain. My Cobra made 780 rwhp and isnt the lightest car on earth and the irs managed to live for 2 years. Its not a big deal found a better part and will fix it when they show up.
As fare as the Last comment It is heads cam nitrous but all of my other cars make alot more power and didnt break in 700 miles with my wife driving. Chevy has always used weak drivetrain. My Cobra made 780 rwhp and isnt the lightest car on earth and the irs managed to live for 2 years. Its not a big deal found a better part and will fix it when they show up.
Launching!
Joined: Nov 2006
Posts: 250
Likes: 0
From: Miami
Interesting, it looks like the cv joint itself is the weakest link. The aftermarket setup looks to be bigger all around, I guess you wont be having any more problems in that area. Thanks for posting the pics.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Collections Ban
Joined: Feb 2009
Posts: 204
Likes: 0
Yes ,every aspect is redesighned and built to handle 1000 hp,if we can help feel free to give us a call.
Some cars are holding up just fine. OrangeChevyII has been in the sub 1.6 60's for 15+ passes without a problem. That car has made 40+ passes with drag radials on it.
M6 car.
It chirps the 315 30 18 MT dragradials on the 1-2 ,2-3 and 3-4 shifts. I am not in any way saying they are built to handle this kind of force applied to them but they are working out great so far. After the cam and standalone fuel cell were added this week the car shouldnt have a problem running 10.5's @ 135 ish this weekend on the same 150 pills.
It chirps the 315 30 18 MT dragradials on the 1-2 ,2-3 and 3-4 shifts. I am not in any way saying they are built to handle this kind of force applied to them but they are working out great so far. After the cam and standalone fuel cell were added this week the car shouldnt have a problem running 10.5's @ 135 ish this weekend on the same 150 pills.
Collections Ban
Joined: Feb 2009
Posts: 204
Likes: 0
M6 car.
It chirps the 315 30 18 MT dragradials on the 1-2 ,2-3 and 3-4 shifts. I am not in any way saying they are built to handle this kind of force applied to them but they are working out great so far. After the cam and standalone fuel cell were added this week the car shouldnt have a problem running 10.5's @ 135 ish this weekend on the same 150 pills.
It chirps the 315 30 18 MT dragradials on the 1-2 ,2-3 and 3-4 shifts. I am not in any way saying they are built to handle this kind of force applied to them but they are working out great so far. After the cam and standalone fuel cell were added this week the car shouldnt have a problem running 10.5's @ 135 ish this weekend on the same 150 pills.