Spring Rates for BSP
#1
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Spring Rates for BSP
I run a 240Z in BSP and am looking into a Ground Control coilover upgrade. What spring rates would you recommend with Tokico Illuminas and 14 x 7 wheels? Would 250 psi fronts and 225 psi rears be a good setup? The car is mainly an autocross car and the ride for the street is not that important.
#2
When I went for a ride in Vic Sias' BSP national champion car, he was running 400lb. springs all around with Advance Design shocks from Ground Control which were valved for those high rates. I believe those are the same rates Tom Holt uses in his FP car. From posts by John Coffey over on HybridZ, you don't want to run much over 250-275 lb. springs with Tokico Illuminas. I ran 325F 375R for 5 events with Illuminas and had heat marks up and down the shafts and it felt bouncy and go kart like, the last event. I think I hurt them.
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