S2000 STR prep resource
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Joined: Apr 2008
Posts: 1,755
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From: Detroit, WA
Originally Posted by chetly,Oct 13 2010, 11:39 AM
Just in case anyone was interested, i measured the spring rate of the saner bar last night.
softest setting: 554lbs
medium setting: 667lbs
hard setting: 798lbs
softest setting: 554lbs
medium setting: 667lbs
hard setting: 798lbs
Questions though - do you know how this translates to effective spring rate? Is that lbs/inch of deflection? Sorry if I'm using the wrong jargon here. Is that like adding +554/667/798 lbs/inch of stiffness to whichever corner is being compressed? I'm sure it's not that simple, just trying to imagine how this is quantified...
...I have a Veh-Dyn text book that would be handy for this, but it's trapped in my garage somewhere
Joined: Apr 2006
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From: Atlanta, GA
Originally Posted by nmrado,Oct 13 2010, 10:49 PM
I installed a set of J's Racing S2 camber joints this evening. Here's the camber curve before and after the install -
The dashed line is about where the stock ride height sits, ~14.2" hub center-to-fender lip. The fender lip clearance is improved by installing these joints.
Interestingly, I lost some droop travel by installing them. All of these measurements were taken without the coilovers installed, so the extreme ranges of travel may not be normally possible.
The dashed line is about where the stock ride height sits, ~14.2" hub center-to-fender lip. The fender lip clearance is improved by installing these joints.
Interestingly, I lost some droop travel by installing them. All of these measurements were taken without the coilovers installed, so the extreme ranges of travel may not be normally possible.
Joined: Apr 2010
Posts: 570
Likes: 16
Originally Posted by nmrado,Oct 13 2010, 07:49 PM
I installed a set of J's Racing S2 camber joints this evening. Here's the camber curve before and after the install -
The dashed line is about where the stock ride height sits, ~14.2" hub center-to-fender lip. The fender lip clearance is improved by installing these joints.
Interestingly, I lost some droop travel by installing them. All of these measurements were taken without the coilovers installed, so the extreme ranges of travel may not be normally possible.
The dashed line is about where the stock ride height sits, ~14.2" hub center-to-fender lip. The fender lip clearance is improved by installing these joints.
Interestingly, I lost some droop travel by installing them. All of these measurements were taken without the coilovers installed, so the extreme ranges of travel may not be normally possible.
Doesn't -3.5 sound excessive? I was thinking I wanted to try a very conservative -2.2 first.
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Joined: Jul 2007
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Originally Posted by dnace,Oct 14 2010, 09:55 AM
so help me understand this. Are these values the reuglar camber available at that right hight? How does this translate to the camber range available. I was just debating on the S1 or S2 myself. It would be great is I could get a 1.8deg-3.8 range.
I'm not sure what the actual range of the eccentric is now, but it's probably something like -3.7 to -1.7 at stock ride height. The next time I'm on an alignment rack, I'll measure the range.
I'm going to dial it back and start around -3.2 in the front. From what I've read, the R-S3s need a lot of camber to get even temperature across the tread width.
Joined: Aug 2002
Posts: 1,602
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From: St. Louis
Originally Posted by chetly,Oct 13 2010, 01:39 PM
Just in case anyone was interested, i measured the spring rate of the saner bar last night.
softest setting: 554lbs
medium setting: 667lbs
hard setting: 798lbs
softest setting: 554lbs
medium setting: 667lbs
hard setting: 798lbs
Joined: Aug 2002
Posts: 1,602
Likes: 3
From: St. Louis
Originally Posted by chetly,Oct 14 2010, 12:58 PM
From my understanding it takes 667lbs of force to move the bar 1 inch, just like a spring on a shock.
[QUOTE=macr88,Oct 14 2010, 01:29 PM]But the shocks and bars aren't mounted in the same location are they? If they are then the wheel rate will be the same, if they're not then you'll have to calculate it out.
