S2000 STR prep resource
Registered User
Joined: Jul 2007
Posts: 1,376
Likes: 2
How would steering response or turn in be any different if you were able to achieve the same roll stiffness by just using springs? I've asked that question to a lot of people and haven't received a good response yet... Without having tried it, it seems like an all spring setup with the same roll stiffness of a spring/sway setup would feel very similar in terms of response and turn in.
I think my shocks would hate me for running that much spring.
Joined: Apr 2010
Posts: 570
Likes: 16
I switched from a high-roll stiffness setup to a lower-roll stiffness setup.
Old setup:
4 hole Saner FSB @ full stiff
AP1v1 RSB
900 lb/in front, 800 lb/in rear springs
Newer setup:
AP1v1 OE FSB
no rear bar
900 lb/in front, 800 lb/in rear springs
We had a long 8-cone slalom at our last event, and I couldn't believe how hard my car would take a set with lower roll stiffness. I've never been able to slalom with that much grip using past setups. The response is little slower (and I mean only slightly) but the grip once it settled was awesome. The courses were point-and-shoot layouts and I managed to maintain high enough average speeds to snag 2nd PAX the first day and 1st PAX the second day. If only I could lay down a fast time within 3 runs.
Old setup:
4 hole Saner FSB @ full stiff
AP1v1 RSB
900 lb/in front, 800 lb/in rear springs
Newer setup:
AP1v1 OE FSB
no rear bar
900 lb/in front, 800 lb/in rear springs
We had a long 8-cone slalom at our last event, and I couldn't believe how hard my car would take a set with lower roll stiffness. I've never been able to slalom with that much grip using past setups. The response is little slower (and I mean only slightly) but the grip once it settled was awesome. The courses were point-and-shoot layouts and I managed to maintain high enough average speeds to snag 2nd PAX the first day and 1st PAX the second day. If only I could lay down a fast time within 3 runs.
Registered User
Joined: Jul 2007
Posts: 1,376
Likes: 2
Unfortunately, no. These were just my observations from the "newer" setup I listed. It was strictly a butt-dyno kind of comparison to my past setup. We have another two-day event coming up with a long, fast slalom; maybe I'll swap back to my stiff roll setup between the two days.
Registered User
Joined: Mar 2008
Posts: 515
Likes: 0
Ok, so here's my dryer vent intake.
I don't own a dremel... after all, that would be too easy. So, I just bought some of the "RotoZIP" side cutting bits, slapped that puppy into my Ryobi cordless drill, and went for broke. As you can see, this is a stroke of absolute genius.
Registered User
Joined: Mar 2008
Posts: 515
Likes: 0
Originally Posted by nmrado' timestamp='1303424849' post='20494065
I switched from a high-roll stiffness setup to a lower-roll stiffness setup.Old setup:4 hole Saner FSB @ full stiffAP1v1 RSB900 lb/in front, 800 lb/in rear springsNewer setup:AP1v1 OE FSBno rear bar900 lb/in front, 800 lb/in rear springsWe had a long 8-cone slalom at our last event, and I couldn't believe how hard my car would take a set with lower roll stiffness. I've never been able to slalom with that much grip using past setups. The response is little slower (and I mean only slightly) but the grip once it settled was awesome. The courses were point-and-shoot layouts and I managed to maintain high enough average speeds to snag 2nd PAX the first day and 1st PAX the second day. If only I could lay down a fast time within 3 runs.
Oh, it turned in the sweeper. However, the transitions were terrible. The steering response was so much slower I started pelting cones left and right. Bottom line, switched the sway bar back to full stiff for the second day of competition and I got faster... by 1.2 seconds a side (not counting the cone penalties). Sure, now I had to downshift to 1st in the sweeper to get it to turn... but because it was a pro, the entire rest of the course was offsets and slaloms.
That being said, I might soften my bar 1 slot... just because it does feel "stiffer" now with the spherical bearing mounts.
Joined: Apr 2010
Posts: 570
Likes: 16
Originally Posted by imstimpy' timestamp='1303481765' post='20496136
[quote name='nmrado' timestamp='1303424849' post='20494065']I switched from a high-roll stiffness setup to a lower-roll stiffness setup.Old setup:4 hole Saner FSB @ full stiffAP1v1 RSB900 lb/in front, 800 lb/in rear springsNewer setup:AP1v1 OE FSBno rear bar900 lb/in front, 800 lb/in rear springsWe had a long 8-cone slalom at our last event, and I couldn't believe how hard my car would take a set with lower roll stiffness. I've never been able to slalom with that much grip using past setups. The response is little slower (and I mean only slightly) but the grip once it settled was awesome. The courses were point-and-shoot layouts and I managed to maintain high enough average speeds to snag 2nd PAX the first day and 1st PAX the second day. If only I could lay down a fast time within 3 runs.
Oh, it turned in the sweeper. However, the transitions were terrible. The steering response was so much slower I started pelting cones left and right. Bottom line, switched the sway bar back to full stiff for the second day of competition and I got faster... by 1.2 seconds a side (not counting the cone penalties). Sure, now I had to downshift to 1st in the sweeper to get it to turn... but because it was a pro, the entire rest of the course was offsets and slaloms.
That being said, I might soften my bar 1 slot... just because it does feel "stiffer" now with the spherical bearing mounts.
[/quote]
Every notch stiffer I went on my setup cut time from the clock. Softest felt best and was slowest. I ran out of notches and have been meaning to upgrade to the solid bar. With that said, we had to soften compression in Houston because we were overloading the tires on the dusty/smooth surface so there definitely IS a limit.
Joined: May 2004
Posts: 1,531
Likes: 3
From: Tucson
Ok, so here's my dryer vent intake.
I don't own a dremel... after all, that would be too easy. So, I just bought some of the "RotoZIP" side cutting bits, slapped that puppy into my Ryobi cordless drill, and went for broke. As you can see, this is a stroke of absolute genius.