Need advice on suspension set up

[dejxx]

Quick background... i live in Argentina, and roads here SUCK, really really SUCK. So my suspension set up cant be very low or rough. My car is the FT86 (base version sold outside USA). Its a turbo, running around 290whp. Also running AP Racing Sprint kit with Ferodo DS2500, and stock brakes on the rear.

This question refers to suspension set up for TRACK DAYs. Right now the only mods i have suspension wise are Eibach Pro Kits and Whiteline front camber bolts, nothing else. Track rims are Enkei RPF1 17x7.5 with full R compound slick tires. At low speed corners the car behaves well enough, it turns and rotates with throttle (i would say it looses the rear quite easy for a car with slick tires and only 290whp). BUT at high speed turns things get a little crazy, and the car seems to loose the rear quite easy... which isn't good at +100mph. If i remember correctly camber is around -1.25 front and -1.5 rear.

So... what do you guys recommend for a cheap and fast fix for this...? rear sway bar? LCA? wider wheels? tires are kinda the best you can go for track use...

Appreciate it!!!

[Racecomp Engineering]

How is your toe set?

More rear camber (and front while you're at it) would improve the car.

A mildly larger front swaybar may make an improvement, but start with alignment.

- Andrew

[dejxx]

if i remeber correctly toe was at 0 at front and a little bit of toe out at the rear...

I will go with a full alignment before the next track day and test it out.

[swarb]

Toe out in the rear is the problem.

[Racecomp Engineering]

Originally Posted by swarb

Toe out in the rear is the problem.

Yup.

A tiny bit of toe-in would be a good idea for you. That would help keep the car rear end stable. Start there.

- Andy

[dejxx]

thanks for the input guys! ill try that before doing some major mods.