Spring rates
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Joined: Jan 2002
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From: Vegas Baby, Vegas
Originally Posted by billyblast,Aug 14 2004, 09:10 PM
Anybody know the spring rate of the H&R Sport Springs? H&R won't tell! Anybody...Anybody... 
Spring rates for the H&R coils are 345 lbs/in front & 345 lbs/in rear.
They'll tell, you just have to know who to ask
EDIT: Never mind, I'm an idiot. You wanted to know about the sport sprins, not coilovers. And yes, I realize you asked this 5 months ago
Joined: Jan 2002
Posts: 4,666
Likes: 2
From: Encinitas (San Diego), CA
Originally Posted by bluesaint' date='Jan 3 2005, 08:04 PM
my Spoon Coilovers are using the following:
Front:
14kg or 783lb
Rear:
12kg or 671lb
they rock.
Front:
14kg or 783lb
Rear:
12kg or 671lb
they rock.
What's the actual metric when you say "kg", i.e. is kilograms/cm etc. and what is the conversion factor to lb/inch?
Registered User
Joined: Oct 2000
Posts: 2,560
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From: Studio City, CA
kg/mm = (lb/in) / 55. Approx.
Stiff springs don't necessarily ride all that harsh. The damper will be the most important factor in determining ride quality. When I switched to my JRZs, I went up to 700 front, 750 rear and I almost wish I had gone with higher rates because the JRZs tend to give a comfortable ride and this really isn't bad at all (even for the street).
For those Tein N0s, those rates are intended for a very smooth track surface (no bumps), not a flat track. The Japanese tend to tune suspensions with very little travel and high spring rates. Out here, we tend to use softer springs and more travel with careful damper tuning to control the vehicle movements.
I'm not sure how much this is a difference in philosophy and how much can be attributed to differences in the track conditions and differences in tire carcass stiffness and resulting optimal slip angles.
Stiff springs don't necessarily ride all that harsh. The damper will be the most important factor in determining ride quality. When I switched to my JRZs, I went up to 700 front, 750 rear and I almost wish I had gone with higher rates because the JRZs tend to give a comfortable ride and this really isn't bad at all (even for the street).
For those Tein N0s, those rates are intended for a very smooth track surface (no bumps), not a flat track. The Japanese tend to tune suspensions with very little travel and high spring rates. Out here, we tend to use softer springs and more travel with careful damper tuning to control the vehicle movements.
I'm not sure how much this is a difference in philosophy and how much can be attributed to differences in the track conditions and differences in tire carcass stiffness and resulting optimal slip angles.
