Results 1 to 20 of 21
Thread: what's the rear end hp rating
-
09-27-2005, 07:36 AM #1deception05Guest
what's the rear end hp rating
just like the title says how much will the stock rearend handle? I would like to know before I try and mash on the gas. and is it true that your rear end isn't just affected by the launch but also a very high speeds?
-
09-27-2005, 08:18 AM #2
- Join Date
- Aug 2005
- Location
- Texas Department of Corrections
- Posts
- 18,128
- Retired Outlaw Sum Bitch
This is a tough question...some have busted at 400RWHP...some are well into 500RWHP and still going.....so much depends on your launch techniques.....M6/A4 etc....My rule....run it till you break it ...then upgrade it...
-
09-27-2005, 01:49 PM #3deception05Guest
that is what I thought
-
09-27-2005, 10:15 PM #4
I have seen people who broke the stock rear end with a stock motor with the M6. It usually doesn't hold up well after upgrades unless you are unusually gentle with it.
-
09-28-2005, 12:04 AM #5BlackHawk T/AGuest
Like was said, hard launches with tires that stick can break the rear end without even touching the engine...
-
09-28-2005, 12:43 AM #6
- Join Date
- Aug 2005
- Location
- THE SWAMP
- Posts
- 1,446
Light Pewter Metallic- 2000 Camaro SS M6
I'm wondering that myself. I'm at the 400rwhp threshold with my M6/3.42 and have heard that the stock rear can't handle much more (less, if abused, obviously). I don't launch it hard (with a rare exception or two) and I'm not a drag racer, but I do like to play around on the tracks when I can.
I agree with the "run it till you break it ...then upgrade it" rule. Meantime, I'll let that rear upgrade money work for me until I have to spend it.
-
09-28-2005, 03:06 AM #7
When I bought my firehawk I had all previous paperwork on it, The owner before me had the rear diff replaced under warranty when it broke on the stock motor and gears. I'm toying with sticky tires and 425+ HP at the rear wheels now, will know exact dyno numbers in a week or so, whenever my heads get in... Still have the 3.43 rear, and hope it holds up long enough for me to work towards a 12 bolt with some 4.10s
-
09-28-2005, 07:54 AM #8
- Join Date
- Aug 2005
- Location
- Crystal Lake IL
- Age
- 47
- Posts
- 2,517
Pewter- 2001 Camaro Z28 M6
Everything stated above is true.
Stock engines break stock rear-ends, while some engines making 400 and 500 rwhp are still beating on the stock rear-end.
My z28 m6 has 84,000 hard earned miles with about 400rwhp, still running the stock rearend. I have had gear chatter and a clicking noise every time I turn right coming from posi. Its made this noise since I bought 70,000 miles ago.
I’ve made many track passes(low 12s) and street races, and still haven’t nuked it!!!
The longevity of the stock rear end is a crap-shoot, no one knows how long they will last. The best bet is, to always keep some money aside or some room on the credit card because when it goes, you’re not going anywhere. Plus your better off replacing it with either a 12 bolt, 33 spline or a 9” rear-end instead of rebuilding and modifying the stocker.
-
09-28-2005, 01:57 PM #9Rhino21149Guest
I don't think its a matter of how much HP but how much time. The rear axle is a weak point on F-bodies. If you launch hard and use a the max stock HP a lot you will probably ruin the original axle in 65K miles.
My experience: 400 HP and hard launches wears it out in about 25000 miles but its not too expensive to rebuild (like $700 parts and labor). This was our first rear end when our Camaro had about 365 RWHP.
500 HP and a few weekends at the track will trash it again. (This was above with 125 extra RWHP NOS,).
We went with a n aftermarket locker, which is a pain on the street--at least going around corners and in parking lots, but it hasn't broken at over 600.
-
09-28-2005, 02:02 PM #10
I failed to mention in the post the stock rear broke on my car at 20k something miles
-
09-28-2005, 11:23 PM #11Originally Posted by Rhino21149
-
09-29-2005, 04:24 AM #12Rhino21149GuestOriginally Posted by Liquifire
-
09-29-2005, 06:30 AM #13deception05Guest
so actually what would be a good choice to go with rear end wise I heard that GM made a 9" if that is true I don't know but what is the best out there?
-
09-29-2005, 06:39 AM #14
12 bolt
a 9 inch takes more power to turn because of the pinion angle. a 12 bolt with 33 spline axles will easily stand up to 500+RWHP.
-
09-29-2005, 07:00 AM #15deception05Guest
what about 800-900 rwhp looking into a CF driveshaft too
-
09-29-2005, 10:00 AM #16Originally Posted by deception05
-
09-29-2005, 03:47 PM #17
- Join Date
- Jul 2005
- Location
- commerce twp michigan
- Age
- 65
- Posts
- 546
Do the after market alum, covers help at all.
-
09-29-2005, 06:02 PM #18Originally Posted by skar
-
09-30-2005, 01:42 PM #19Rhino21149GuestOriginally Posted by bww3588
-
09-30-2005, 02:20 PM #20Originally Posted by Rhino21149
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Octane rating
By redls1 in forum Almost Anything GoesReplies: 20Last Post: 07-05-2011, 08:55 AM -
What is teh true HP rating on an LS1 SS?
By theTANTALIZINGSS in forum Camaro / SSReplies: 17Last Post: 08-26-2008, 01:35 PM -
Octane rating for gas.........US vs. AUS
By Liquifire in forum General HelpReplies: 2Last Post: 09-19-2007, 08:34 PM -
T-56 torque rating?
By MarkSS in forum Manual TransmissionReplies: 0Last Post: 01-29-2006, 03:35 AM -
Max hp rating?
By methdmx in forum Manual TransmissionReplies: 2Last Post: 10-24-2005, 04:15 PM
Members who have read this thread: 0
There are no members to list at the moment.
Bookmarks