Well, Big Red's UP coilovers use JRi shocks with Hyperco coils - are they 12x2.5" front & 10x2.5" rear like on Ridetech coilovers? (Who coincidentally also use Hyperco springs on their Fox shocks.) Well, Hyperco's single-rate/linear springs go up to 950 lb/in but maybe you're experimenting with their dual-rate/progressive springs which only go up to 230/700#?let play a little game, first person to guess to correct spring rate front and rear will get a Bigred Racing t-shirt
1025 spring rate front, 950 rear
Cool so I wasn't too, too far off. I of course was assuming the additional rubbers were installed and leaves me off by about 10% over....
since no one has guess it
850 front and 750 rear, and we routinely add 50 and 100 lbs rubbers depending on what we are racing on and size of course, also coil overs at 33 way adjustable compression and rebound
I don't blame you for going to road America Luke! That is one of the most Scenic, Beautiful tracks in the country! A couple Buddies and I used to go up there and watch the Superbikes every year.every where we go is typically south and west, only exception is Road America