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Spring rates for autocross

willems45

Ready to race!
Location
canada
I'm looking to upgrade my currant setup to try and control the body role I am getting. I currently have 26mm fsb on soft, 24mm rsb on hard, eibach multipro r1 coil overs with 300lbs front and 350 lbs rear springs. Alignment is -2.6 front and -1.7 rear. I'm finding that in sweepers I can't carry any speed through a corner. The car just rolls over and scrubs the outer edge of the tire off. I am thinking I need to go with higher spring rates front and rear. What spring rates have others been finding works well for our cars?
 

alemagno

Passed Driver's Ed
Location
NJ
130 N/mm (740 lbs/inch) at the rear and 120 N/mm (680 lbs/inch) at the front. Not comfortable but feels good on track and for autocross. I also tried 90 front/100 back and 160 all around but 120 front and 130 rear worked best.
 

willems45

Ready to race!
Location
canada
What are you using for sway bars

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willems45

Ready to race!
Location
canada
245 40r17 bfg g-force rival s. But they are dead I'm going to get the Bridgestone re 71r

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alemagno

Passed Driver's Ed
Location
NJ
What are you using for sway bars
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Eibach 26mm front and H&R 24mm rear both on the soft setting of the two possible settings. I used to have the rear on the hard setting but I flew too many times off the track during track days on r-compound tires but it was the better setting for autocross. Autocross is with Bridgestone 71R with 245/40 17 on 17x9 front and 225/45 17 on 17x8 rear. Track is with 235/40 17 BFG R1 on 17x9 on all four corners.
 
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