handling issue
I find this really odd as well with your setup, but I agree with the others. One or some combination of the following should help sort things (in order of increasing complexity
):
- Lower rear tire pressures or raise front pressures
- Soften up the rear compression / rebound settings
- Disconnect rear bar
- Slightly raise the front ride height
- Stiffer / adjustable front sway
You're probably going to give up some of the corner entry sweetness in the process (that's a tradeoff I could live with if need be). Consider also the possibility that something is broken in the rear suspension?
):- Lower rear tire pressures or raise front pressures
- Soften up the rear compression / rebound settings
- Disconnect rear bar
- Slightly raise the front ride height
- Stiffer / adjustable front sway
You're probably going to give up some of the corner entry sweetness in the process (that's a tradeoff I could live with if need be). Consider also the possibility that something is broken in the rear suspension?
Originally Posted by CRDMS1' date='Mar 15 2007, 05:28 PM
Consider also the possibility that something is broken in the rear suspension?
Mike, generally you want to make one change at a time. I say soften rear rebound first because you don't know if the rebound and compression is already "balanced", so changing both together may get you nowhere. I would not stiffen the front until all options on the rear have been exhausted, as I'd want to increase grip in the rear (more rubber there) rather than decrease grip in the front (already less rubber there) to balance the car. Just my opinion.
But first check to make sure nothing is broken/bent or seriously out of alignment.
But first check to make sure nothing is broken/bent or seriously out of alignment.
I'm with BKL, soften up your rear compression first then try adjusting rebound after. But Richard is right, adjust one or the other, not both at once.
Also, i take it you dont have a BSK? If not then getting one will go a long way in stabalizing the rear end and keep you from chasing demons.
But best yet, follow up with Tony!
Also, i take it you dont have a BSK? If not then getting one will go a long way in stabalizing the rear end and keep you from chasing demons.
But best yet, follow up with Tony!
I'm guessing rear toe. I've done that experiment before. Alignment was off and boy the car was interesting. Turned in great and would continue to turn it. It took a lot of work to keep it going in the right direction.
Does the car feel like it always want to bring the tail out?
Too many people hav erun the combo without issue. And with that tire stagger, it should push.
Does the car feel like it always want to bring the tail out?
Too many people hav erun the combo without issue. And with that tire stagger, it should push.
You may need less rear sway bar or stiffer rear springs. You may also be pitching the car into the corner to get over initial entry understeer. Check you roll bar linkages. Lower rear tire pressure. Try less negative camber on the rear.
Obviously check things from easiest/cheapest to hardest. It costs nothing to adjust tire pressure and check linkages on sway bars. It costs very little to drop your rear neg camber to -2.5*.
Yes, I'll check everything I can. Alignment should be fine, I just had it done. But you never know.
Yes, I do have the BSK.
Definitely not an initial understeer problem. This was a long sweeper, more than 180 degrees, and the car was completely set. I started giving it throttle to accelerate and start a little rotation to help it get around to the exit. Problem is, instead of drifting out and throttle steering controlably, it just wanted to rotate. I may have pinched it off a little, but nothing that should have been enough to do this.
What it feels like is that the car is stable with no slip angle, and stable on initial turnin. But once it takes a set, it feels like the rear has much less grip than the front. Thinking it over, that really does seem like it might be a sway bar thing.
Yes, I do have the BSK.
Definitely not an initial understeer problem. This was a long sweeper, more than 180 degrees, and the car was completely set. I started giving it throttle to accelerate and start a little rotation to help it get around to the exit. Problem is, instead of drifting out and throttle steering controlably, it just wanted to rotate. I may have pinched it off a little, but nothing that should have been enough to do this.
What it feels like is that the car is stable with no slip angle, and stable on initial turnin. But once it takes a set, it feels like the rear has much less grip than the front. Thinking it over, that really does seem like it might be a sway bar thing.







