srovner

eight

Stiffer sway bar up front is to fight understeer, while a smaller rear sway bar fights oversteer. A square tire set-up also fights understeer but is more prone to oversteer. I see a lot of guys run eibach or Karcept front sway bars and run an oem ap2 rear or some even take off the rear sway completely. It all comes down to drive style. I have 2 sets of sway bars that I swap around depending on what I'm feeling at a certain track.

As for the spring rates, I'd like to say that the 12/10 would help a lot more if you like a more grounded ride. If you're anywhere near a decent driver, you'll find the limits of the 10/8 ohlins within a very short amount of time. However, if it's about body roll during mid-turn, that's almost all on your sway bars. If you'd like to take baby steps then you should go with a CR front and a base ap2 rear, that is a very common set-up.

srovner

noodels

Also the lotus is 410 kgs lighter than the S2000,will never compete with that weight.
Built a stones throw from me & the old man helped design with R.Rackham & J.Thomson,& had Dino/Ducati concept in mind when designed .

B serious

no....a stiffer sway bar up front is meant to INDUCE understeer. Not reduce.

Car Analogy

...stiffer swaybar reduces roll, but also reduces traction on that end.

Since you can't open the spreadsheet, I will add your values, 10k/8k with '06 swaybars, and post up the numbers. I'll also do a version with CR front swaybar, so you can see what that does for balance. I'll do it tomorrow.

srovner

andrewhake

NO.

andrewhake

It comes down to driver preference but I would highly recommend against installing a CR front sway bar with with 10kg/8kg or 12/10kg springs unless you are looking for more understeer. Especially on staggered tires. The car will definitely perform just fine but it isn't going to be neutral. Softer springs in the rear tend to exaggerate body roll in an S2000 because most of the feel of the car comes from the rear. With staggered tire setup I would run 10kg/12kg spring setup personally.

Roll center adjusters are another good option for correcting the geometry and increasing roll stiffness front and rear. A little more expensive than sway bars but correcting the problem a bit closer to the source. Roll center correction + slightly stiffer sway bars is a better approach than just adding drastically stiffer sway bars in my opinion.

Stiffer springs will also help reduce dive and squat and also help the car feel a bit more responsive on initial input. A lot more complicated than this, but the approach generally is to run the stiffest springs you can that don't also start to effect compliance and overall grip of the tire. You will definitely hit the compliance side of that before getting to the tire limit grip with the tires available these days.

srovner