SPC Camber Joint vs J's Racing S1
03-16-2011, 11:55 AM
#31
He said he ran them for 45 minutes on the track at a practice session, and the car drove like crap. He said the ball and socket part was worn out like it had been on the car for 100,000 miles and was very loose. They were brand new that day, and he never asked J's about it, he just stopped using them and switched to the SPC part.
03-16-2011, 04:23 PM
#33
What about purely for the sake of adjusting the roll center? Admitedly, I don't understand the concept completely, but from what gather, at oem height, the suspension was designed with a given roll center. Significantly lowering a car will change the roll center, specifically, increasing the distance between the CG and roll center. If not corrected, doesn't this mean more roll? Or is the difference not enough for the driver to feel.
03-16-2011, 04:49 PM
#34
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it very well might correct the roll centers on cars that are lowered more then 40mm. If you absolutly feel you need the extra plate save yourself $150 and make them. In STR (autocross class) we arn't allowed to have the s2, just the s1. If you do go with the s2 or make your own buy the 20mm rear one from j's racing also. We arn't allowed to run them in my autocross class but from what a local said it really helped out on settling down the rear. A thing to keep in mind though, If you go with the s2 you may not be able to fit 16" wheels on your car if you ever choose to. Due to the fact it will lower the ball joint closer to the wheel.
03-16-2011, 06:30 PM
#35
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03-17-2011, 09:44 AM
#37
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No problems with the SPC thus far, I find it very hard to claim one is "better" than the other here. Both are good products (coming from someone who's had both)
03-17-2011, 10:49 AM
#38
I only have SPC joints because of my experience with the J's joint. The one with the shim to "adjust roll center" makes the car handle and turn in like crap. If you purchase one I recommend the one without the shim, I ended up removing mine.
No problems with the SPC thus far, I find it very hard to claim one is "better" than the other here. Both are good products (coming from someone who's had both)
No problems with the SPC thus far, I find it very hard to claim one is "better" than the other here. Both are good products (coming from someone who's had both)
Correct me if I'm wrong here but the way I see it if you lower your car to the point that the roll center is below ground and you use the spacer/shim to correct this issue you may have inadvertently caused a bump-steer issue. Because the relationship of the rack and spindle have changed. I bet that a bump-steer kit or raising the rack would take care of this.
03-17-2011, 10:56 AM
#39
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Correct me if I'm wrong here but the way I see it if you lower your car to the point that the roll center is below ground and you use the spacer/shim to correct this issue you may have inadvertently caused a bump-steer issue. Because the relationship of the rack and spindle have changed. I bet that a bump-steer kit or raising the rack would take care of this.
Easier correction is to just remove the shim. lol.
03-17-2011, 01:56 PM
#40
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I've never had SPC's move out of spec.