Remove the rear sway and put the stock one back in, your car is obviously lacking rear suspension compliance. Even in autox S2000s where rotation is crucial, S2000s don't need a stiffer rear sway bar.

For alignment, you shouldn't be running toe in up front. That hurts turn in and causes a snap oversteer condition once the car finally turns in. Run 0 toe up front, the rear toe in is fine, and keep that negative camber.

 

I have always run that. I think most S2000 non-racecars are set up that way, in fact.

I also wonder why you have toe in the front. I run zero toe in front, as does everyone else with an S2000 that I have ever asked.

 

Too much front camber for sure. Also make the dampers uneven (stiffer in front, softer in the rear). You're also running way too high tire pressures for the RE-01R. They tend to get greasy in higher temps so if you can pull off and water them down and they'll regain grip.

 

I'll definitely correct the Toe-in and set it to zero. Next thing I'll do is set the coilovers a little stiffer in front and a little softer in the rear.

Any suggestions on how I should adjust the bound/rebound? Should the bound be turned higher than the rebound?

I'll probably head to Buttonwillow on April 11 and give you guys an update.

Thanks for all the help.

 

Escalvante, I just got under my car in preparation for the April 12th track day at Buttonwillow with SpeedVentures and noticed something interesting. I have SRCs as well and I remember you posted on the forum asking for length settings for the dampers and I posted what the manual said. Perhaps you have the same problem as me. My rear is unsettled over bumpy roads, as well.

I had my rear wheels up on a ramp to inspect all the suspension components and I noticed that I had about a 1/4" of damper travel in the rear, as it sat, until it would start in to the bump stops. I have been riding on bumpstops for the past 6 months! I thought the setting TEIN gave would be reasonable, but it appears I need to add a lot of preload to the spring so I can get some bounce travel back. I hope to have time this week to make this adjustment before getting to the track (I have not tracked with the SRCs yet, but have done ~8 autocrosses).

You should put your car up on ramps and check how much travel you have in the rear. My fronts had about 1.5" of travel until the bumpstop which seems more reasonable. Riding on the bumpstops would make the car very twitchy at corner exit over even the slightest bumps.

I'll report back if I had time to make this adjustment. Let me know if you have a similar limited travel in the rear.

 

[QUOTE=Suspension,Apr 6 2008, 03:18 PM] I had my rear wheels up on a ramp to inspect all the suspension components and I noticed that I had about a 1/4" of damper travel in the rear, as it sat, until it would start in to the bump stops.

 

hey sal have you done the driver mod yet?

 

Interesting observation.

I just did that and have plenty in the front before hitting the bumpstops but in the rear and have 3/4" before the bumpstops.

So maybe someone can chime it......is the only was to get more shock travel to increase the preload??? Does adjusting the ride height help......Looking at the shocks....I dont think the ride height would make a difference....

The problem because now adding more preload to the rear when you dont want it that sprung.

 

How much is "plenty"? 1, 2"? It would be good to know the stroke of the SRCs.

The only way to get jounce travel back is to increase preload, and start to compress that helper spring. There is only a set amount of travel available and the travel should be centered when at rest. The helper spring does allow more droop travel, but that last bit of travel corresponds to a very light load on that corner, as it is a pretty weak spring.

I would be fine increasing the preload to even out the travel. If you preload it too much, you'll notice when you lift a wheel. I am going to increase preload (and adjust the height to maintain the ride height) and try to center the travel and hopefully I won't get wheelspin. If I do, then I'll have to reduce the preload. It's a compromise. At this time I get no lift or wheel spin and have very little travel, so it make sense to increase preload and get some travel back.

 

- Put stock rear bar on
- Zero front toe (maybe slight toe out?)
- Try taking out a little rear camber (try 2* instead of 3*... should give the rear a bit more grip under acceleration)
- Sounds like alot of rear toe in? Although maybe that's not such an issue with the BSK you have...
- Soften rear bump
- Increase front spring rate (cheap way: use a coil binder)
- Let S2Kretard professionally analyze your car by driving it