HS30-H Posted September 23, 2003 Share Posted September 23, 2003 Those are SPRING rates. I'm talking about BUMP and REBOUND rates for Shock Absorbers / Dampers. I've seen good posts from John Coffey about this - but surely he isn't the only one here who knows what rates he uses? Alan T. Quote Link to comment Share on other sites More sharing options...
CruxGNZ Posted September 23, 2003 Share Posted September 23, 2003 D'oh! Whoops. Well, there was some good information in there on page two that might help. !M! Quote Link to comment Share on other sites More sharing options...
johnc Posted September 23, 2003 Share Posted September 23, 2003 My rates can't be compared to anyone elses... that sounds a little funny. I have digressive pistons in the Penskes on my 240Z and none of the shocks mentioned so far offer that type of rebound curve. And, at the moment, I don't even know what the digressive rates are because Erik lost the printouts from the shock dyno. Here's the current settings if anyone wants to get more confused: Front Rebound - 4 off full hard High Speed Compression - 8 off full soft Low Speed Compression - 8 off full hard Pressure - 225 psi Rear Rebound - 2 off full hard High Speed Compression - 6 off full soft Low Speed Compression - 8 off full hard Pressure - 175 psi These setting will change at the next event (they always do!) Quote Link to comment Share on other sites More sharing options...
HS30-H Posted September 23, 2003 Share Posted September 23, 2003 Mat, your link was very useful - thanks. I've ended up with very similar SPRING rates to you ( mine are 180lb front and 200lb rear 10 Inch long 2.25 diameter) - mainly because I sometimes have to drive the car on torn-up urban roads here in London. Some of our country roads have some pretty nasty 'surprises' on them too. I've come down quite a long way on spring rate over the last year ( in three increments ) and ended up with these. I had the dampers re-valved by Bilstein's UK operation each time. Now I'm at 180 Bump-110 Rebound for the fronts, and 210 Bump-120 Rebound rear. I have Rose ( Heim ) jointed and adjustable TCA's and Tension Rods. Also have Uniballs in the ( solid ) top insulators / mounts that you can see in the photos of my set-up posted previously. I think these are not ideal for my needs and might try to find a way to go back to a rubber-bushed set-up in the near future. Interestingly, this very point was raised several times by some fine minds in your excellent thread. All the best, Alan T. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.