Adjusting rear ride height using spring plate ?'s
08-27-2008, 08:55 AM
#16
Addict
Rennlist Member
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Oh, yeah, dumb question. What kind of grease are they using??? I'd only ever bother with Valvoline Synth or Redline CV1 on the track...
08-27-2008, 08:02 PM
#17
Burning Brakes
08-27-2008, 10:21 PM
#18
Race Director
chrisc
I think you have a real problem. CV's on the 944 spec cars last forever with almost no maintaince. I do more than most and I bet alot of guys never even check for grease let alone repack periodically. No failures to show for it. That is with early short axles (for steel trailing arms) and late longer ones with aluminium arms. Same goes for open diff, clutch pack lsd or welded diff's too. CV's are a non issue athough the bolts can come out. I use new bolts, blue loctite, and carefully clean the threads of grease. Then torque to 33lbs. Even so I check them when doing my moring check up each trackday. Visual, or finger check mostly, but sometime wrech on there to besure.
Is the tranny straight? Are the trailing arms ok. Seems like something could be way out of whack somewhere that is causing this.
I think you have a real problem. CV's on the 944 spec cars last forever with almost no maintaince. I do more than most and I bet alot of guys never even check for grease let alone repack periodically. No failures to show for it. That is with early short axles (for steel trailing arms) and late longer ones with aluminium arms. Same goes for open diff, clutch pack lsd or welded diff's too. CV's are a non issue athough the bolts can come out. I use new bolts, blue loctite, and carefully clean the threads of grease. Then torque to 33lbs. Even so I check them when doing my moring check up each trackday. Visual, or finger check mostly, but sometime wrech on there to besure.
Is the tranny straight? Are the trailing arms ok. Seems like something could be way out of whack somewhere that is causing this.
08-28-2008, 09:50 PM
#19
Burning Brakes
I got the car with 80,000 miles from a long time friend. He was meticulous with his cars (former Porsche dealer GM). The car was never in an accident. The original axles went the entire 80/m. When I got the car I bought it to use in DE's and stock class club races. As a part of the prep I replaced the axles. At that time the car was also lowered by a shop that has a lot of 944 racing experience. Now, after less than 2000 miles and 5 de's the axles are toast. The shop thinks the axles need to be about 50 mm shorter and are checking wth GKN to see if they have anything in their parts bin that will work.
The car has Koni sport shocks in the rear, a custom sway bar and solid bushings. The stock torsion bars are in the car but the rubber was replaced with solid materials. The aluminum control arms are stock and look fine.
If the shop can't locate shorter axles they are going to raise the rear and install the new GKN axles. We would like to leave the ride height as it is as the car handles great but I can't afford replacing axles every 5 two day track events. I am at a loss. Thanks for the comments.
Chris
The car has Koni sport shocks in the rear, a custom sway bar and solid bushings. The stock torsion bars are in the car but the rubber was replaced with solid materials. The aluminum control arms are stock and look fine.
If the shop can't locate shorter axles they are going to raise the rear and install the new GKN axles. We would like to leave the ride height as it is as the car handles great but I can't afford replacing axles every 5 two day track events. I am at a loss. Thanks for the comments.
Chris
08-29-2008, 08:58 AM
#20
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Is there any way the car could've ended up with the wrong axles in there, like late-offset axles on an early car? Or maybe it's the other way around?
08-29-2008, 02:46 PM
#23
Three Wheelin'
