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Old Jul 22, 2011 | 06:12 AM
  #161  
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Originally Posted by macr88
Anyone else on these yet?
Really looking forward to my next track day now that I'm finally in the ballpark for these, although I still need a stupid amount of camber for thes RS3's which I still don't have. Not sure if I want to go J's or SPC for camber, I've done a bunch of reading and just have to decide if the J's are worth the money.
I just took off my Js. I was able to get to 2.5 camber, but the car felt off and seemed to gain bump steer or follow the ruts in the road more. I went back to stock and can only get 1.5 and I dont feel I have bump steer. I didnt feel any benefit other than I can get more camber.

I have Motons CS with 16 kg swift springs.
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Old Jul 22, 2011 | 06:24 AM
  #162  
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Originally Posted by thomsbrain
Took a spirited ride in Mac's Ohlins-equipped S. I said a lot of bad words. The way I described it to him was that at every corner I thought we were gonna die. We'd come into a corner at a speed where I knew my front tires would wash out, but Mac's car would just grip. The second the front started gripping, I'd know my rear tires would never hang on, but Mac's rear would just follow the front.

They have that magical combo of massive low-speed damping for grip and body motion control, with reasonable high-speed damping to keep the tires on the road over rough bumps and to keep the ride comfort totally manageable. He could get away with much higher speeds on dips that would bottom my car out, but the dampers were still plenty compliant when they needed to be. Totally liveable on the road, and an instantly noticeable increase in grip. I was in love.
I think a lot of what you are feeling is the difference in front tire size.
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Old Jul 28, 2011 | 10:35 PM
  #163  
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Originally Posted by S2.RR
Originally Posted by macr88' timestamp='1310543543' post='20773893
Anyone else on these yet?
Really looking forward to my next track day now that I'm finally in the ballpark for these, although I still need a stupid amount of camber for thes RS3's which I still don't have. Not sure if I want to go J's or SPC for camber, I've done a bunch of reading and just have to decide if the J's are worth the money.
I just took off my Js. I was able to get to 2.5 camber, but the car felt off and seemed to gain bump steer or follow the ruts in the road more. I went back to stock and can only get 1.5 and I dont feel I have bump steer. I didnt feel any benefit other than I can get more camber.

I have Motons CS with 16 kg swift springs.
Are they the J's with RCA or just what they call S1? The S1 shouldn't cause any bumpsteer but I'm guessing the L1 would cause bumpsteer without other corrections.
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Old Jul 29, 2011 | 04:03 PM
  #164  
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Originally Posted by macr88
They're right around Moton, JRZ range but I know you do good things on a low budget like your Penskes.

One thing I learned from the Bilsteins was that being able to valve a damper is one thing but valving it correctly is another thing. With these it's just not that they're valved really well, there's something else about them. Even when running them fairly firm there doesn't seem to be the need for that initial breakaway to get them moving like I felt with the other dampers, it's almost as if everything is on ball bearings and the other stuff is on bushings. It's just that initial feel when you turn in that feels completely different than anything else.
At the time I thought this was an interesting comment about initial breakaway, and then I read this the other day in Racecar-engineering magazine:

"[Through-rod dampers] don't offer the same platform or support feeling that a monotube damper like the Penske does. There is a bit of nose pressure with the non-through-rod design, which tends to give the car's platform a bit of stability, and the drivers like that especially as the downforce gets shed off the car."

this was an article about INDY cars and downforce. I thought the interesting thing was the explanation for the smoothness you describe. Not sure it's relevant what professional drivers of high-downforce INDY cars prefer
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Old Jul 30, 2011 | 11:24 AM
  #165  
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Originally Posted by jah29
At the time I thought this was an interesting comment about initial breakaway, and then I read this the other day in Racecar-engineering magazine:

"[Through-rod dampers] don't offer the same platform or support feeling that a monotube damper like the Penske does. There is a bit of nose pressure with the non-through-rod design, which tends to give the car's platform a bit of stability, and the drivers like that especially as the downforce gets shed off the car."

this was an article about INDY cars and downforce. I thought the interesting thing was the explanation for the smoothness you describe. Not sure it's relevant what professional drivers of high-downforce INDY cars prefer
Aero brings another factor into play but it almost seems backwards with what was being said. I would think it would be opposite, I could see through-rod as being better when aero gets shed but hey that's just my guess hahaha.
The TTX36 aren't through-rod dampers but they do run less gas pressure than other dampers with similar damping due to their design. I prefer the fact that they have a bit less nose pressure because there isn't that initial false sense of damping that isn't really there. I think it gives the tire a better chance of hooking up initially even though there's more real chassis control due to being able to run more damping. By the way this is just my take on this
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Old Jul 30, 2011 | 02:14 PM
  #166  
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Originally Posted by macr88
Aero brings another factor into play but it almost seems backwards with what was being said. I would think it would be opposite, I could see through-rod as being better when aero gets shed but hey that's just my guess hahaha.
The TTX36 aren't through-rod dampers but they do run less gas pressure than other dampers with similar damping due to their design. I prefer the fact that they have a bit less nose pressure because there isn't that initial false sense of damping that isn't really there. I think it gives the tire a better chance of hooking up initially even though there's more real chassis control due to being able to run more damping. By the way this is just my take on this
Hmmm, I thought all ttx were through-rod. Guess i was wrong.

My feelings on suspension are probably the same as yours. If we're going to use this stuff we want the dampers working as much and as often as possible. Heavy springs aren't going to allow a lot of movement, so the valving better be able to damp quickly.

justin
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Old Jul 31, 2011 | 08:11 AM
  #167  
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Originally Posted by macr88
Anyone else on these yet?
Really looking forward to my next track day now that I'm finally in the ballpark for these, although I still need a stupid amount of camber for thes RS3's which I still don't have. Not sure if I want to go J's or SPC for camber, I've done a bunch of reading and just have to decide if the J's are worth the money.

Mac, me and most of the fast s2000's out here in the Midwest have the SPC joint to get more front camber. There is a guy here who has been tracking on it for 3 years and it's never slipped. Mine has been fine for the past year of tracking. Go for it.

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Old Jul 31, 2011 | 11:41 AM
  #168  
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Originally Posted by Suspension
Mac, me and most of the fast s2000's out here in the Midwest have the SPC joint to get more front camber. There is a guy here who has been tracking on it for 3 years and it's never slipped. Mine has been fine for the past year of tracking. Go for it.
I wish you would have posted this earlier hahaha, I already jumped the gun.
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Old Jul 31, 2011 | 12:47 PM
  #169  
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Originally Posted by macr88
Originally Posted by S2.RR' timestamp='1311343937' post='20804745
[quote name='macr88' timestamp='1310543543' post='20773893']
Anyone else on these yet?
Really looking forward to my next track day now that I'm finally in the ballpark for these, although I still need a stupid amount of camber for thes RS3's which I still don't have. Not sure if I want to go J's or SPC for camber, I've done a bunch of reading and just have to decide if the J's are worth the money.
I just took off my Js. I was able to get to 2.5 camber, but the car felt off and seemed to gain bump steer or follow the ruts in the road more. I went back to stock and can only get 1.5 and I dont feel I have bump steer. I didnt feel any benefit other than I can get more camber.

I have Motons CS with 16 kg swift springs.
Are they the J's with RCA or just what they call S1? The S1 shouldn't cause any bumpsteer but I'm guessing the L1 would cause bumpsteer without other corrections.
[/quote]

S1.. It just didnt feel stable to me. Im back to stock, can only get 1.5 camber, but car feels better to me.
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Old Jul 31, 2011 | 02:48 PM
  #170  
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Not feel stable? That doesn't make sense to me..
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