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Thread: Major oversteer. Need help.

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Posts: 11-20 of 23
2011-10-02 20:30:53
#11
Originally Posted by natethebrown
My suggestion would be to get your own Toe-In plates and a camber gauge and do your own alignments. You will save quite a bit of money in the long run. It may not be perfect but you can get pretty damn close.


This is definitely something I am considering, especially as it will allow me to run a proper autox alignment and switch back to a tire friendly set up for DD.

I will play with the agx setting but I am still going to increase rear camber at least back to the 1.2* I had before and then see what I can accomplish with the agx settings ( I am getting a wheels bearing replaced so I am already paying for an alignment anyhow).

I did play with the Tire pressure it seemed to help a bit lowering and increasing tp from the tires ideal grip pressure can increase of decrease oversteer depending how far you go (I decreased in a hope of introducing a bit more heat as it was quite cold).
2011-10-07 04:51:13
#12
What's the alignment and pressures?
2011-10-07 11:09:52
#13
F -1.6 camber. 2.4 caster. 1/16 toe in
R -1.0 camber. 1/16 toe in.

Tire pressure was 37f, 33 rear

Reduced rear to 30.5 seemed to help a bit.
2011-10-07 11:50:45
#14
front and rear should be a zero toe. what are the agx's set to?
2011-10-07 23:11:25
#15
Originally Posted by coors75
Okay. I have been to 4 autox. This last one i went to gc/agx 350/250 from rm/agx 325/250. So basically the same

My alignment was improved by .4* of camber.

I have an st bar with stick front.

First autox's the rear rotated nicely. Now with everything essentally the same it oversteers a lot. I mean you have to really be smooth and cautious. Too much so. (car was driven by very good instructor who agreed).

We both think this is to much oversteer to correct with tp. Any ideas? I know a front bar could help but i prefer to fix this problem at the rear since the front is pretty good.

Agx used to be set at 8. Backed them off to 6. Help minimally. (only adjust how spring rate is applied of course not the rate itself.


Appreciate any help. Most go with more bar/ no front bar so i am at a loss as to the sudden oversteer. Thanks


My guess is you're on the bumpstops if the oversteer is happening abruptly. The next time you go autoxing or a spirited drive in a parking lot, put some white paint on the top of the stop and see if it tranfers to the mount. If it does, there's your issue.


If it oversteers smoothly like the 911 in this video you don't have a problem....loose is fast...yee haw.

Last edited by hammerin hank on 2011-10-07 at 23-32-00.
2011-10-08 20:46:08
#16
^^^^Damn, he's driving on the edge. Pucker factor 20 out of 10.....
2011-10-09 01:06:14
#17
Originally Posted by cortrim1
front and rear should be a zero toe. what are the agx's set to?


Yeah well with a dd i need to consider tire wear. And tgat is what the alinment guy insisted on. I think i had the agx jacked up too high. I will also use the psibt method to see if im on the bump stops next time out.
2011-10-09 01:33:46
#18
pucker factor is 80 mph sideways through the woods, fuck a predictable sideways asphalt track slide
2011-10-09 01:35:15
#19
p.s. that porsche is way too loose
2011-10-10 04:14:28
#20
Originally Posted by coors75
F -1.6 camber. 2.4 caster. 1/16 toe in
R -1.0 camber. 1/16 toe in.

Tire pressure was 37f, 33 rear

Reduced rear to 30.5 seemed to help a bit.


With toe in on the front the car should have a push. FWIW I run 1/16 out on the track NX and zero on the other cars up front. Always zero in the rear unless I really need the rotation and and it's not a high speed circuit. Something is defiantly amiss. Also, how did you get that much caster? I'm just over that with offset bushings and the GC plates.

Originally Posted by coors75
Yeah well with a dd i need to consider tire wear. And tgat is what the alinment guy insisted on. I think i had the agx jacked up too high. I will also use the psibt method to see if im on the bump stops next time out.


Zero will give you better wear than any in or out.
I don't belive you can get enough out of the AGX to make that big of a difference. I run mine at 6 all the time and the only thing I notice going to 8 is that the ride sucks even more!
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