260DET Posted September 9, 2005 Share Posted September 9, 2005 Whats the experience with big springs on the HS130? Together with a full suspension renew/upgrade including two way adjustable shocks? Being a big spring, moderate anti sway bar advocate, plus the HS130 looks to have a much stiffer body than the S30, I'm thinking ~400 fronts. To drive on the road and do some circuit roundy stuff, mainly the latter. Any ideas as to a baseline for the fronts? The S30 avatar car has 250's and is fine on the road. Quote Link to comment Share on other sites More sharing options...
tube80z Posted September 9, 2005 Share Posted September 9, 2005 Whats the experience with big springs on the HS130? Together with a full suspension renew/upgrade including two way adjustable shocks? Any ideas as to a baseline for the fronts? The S30 avatar car has 250's and is fine on the road. .5 to .7 times the corner weight figuring in motion ratio. I don't know about street ride but that would give you a starting baseline that should be decent for radials for a track car. I'd then do 20 percent variation from that to see which way to go for sure. Cary Quote Link to comment Share on other sites More sharing options...
johnc Posted September 9, 2005 Share Posted September 9, 2005 .5 to .7 times the corner weight figuring in motion ratio. Antoher way to say it is the wheel rate needs to be .5 to .7 times corner weight. Figure the motion ratio on a strut suspension at .98 and for the semi-trailing arm rear its probably something around .60, but that's just guess on my part. My Internet Engineering guess is: front spring rate about 350 to start and the rears at about 550 to start. Quote Link to comment Share on other sites More sharing options...
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