Review of Bumspteer kit, diff collar, and axle spacers
10-10-2011 | 12:19 PM
#21
Joined: Jan 2011
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From: Bay Area
Originally Posted by Andrie' timestamp='1318205387' post='21054609
The Exedium diff collar is basically a collar that goes where the rubber is on the stock diff mount. Making it rigid. We installed it, but to tell you the truth, I can not tell any difference. However, I can tell that this might benefit older cars with old cracked rubber on their mount. I might leave it in the car cause, I couldn't feel any difference and it might prolonged my rubber from cracking. I know, I've read Mac, review saying he felt a great difference. He might feel it, but I don't.
I only have like 57 thousand miles on the mounts and they looked fine. I hope you feel the difference with the engine mount rings
my fillings sure did notice a difference 
10-10-2011 | 12:52 PM
#22
Joined: Jul 2006
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Great post Andrie and thanks for clarifying that the test you performed were based off a setup using roll center adjusters. Were you able to find the instant center of each side with weight of driver? I’d be interested in taking your measurements and compare them to coilovers set at the same ride height/no RCA’s. Curious to see what the differences are in control arm angle, bumpsteer spacing and camber gain. I’ve got a stock S2k waiting on the JRZ’s if you catch my drift
As far as the diff collars go, an alternative I recommend would be to try Hasport's Diff Mount Kit. I'm running the 62 duro street and at the softest option of the 4 they offer and they're by far better than the collars that we've installed on customers cars in the past (you can feel the torque transfer to the diff upon acceleration more so than with collars). Tom/Andrie I have mine off the car if you guys want to give it a try.
As far as the diff collars go, an alternative I recommend would be to try Hasport's Diff Mount Kit. I'm running the 62 duro street and at the softest option of the 4 they offer and they're by far better than the collars that we've installed on customers cars in the past (you can feel the torque transfer to the diff upon acceleration more so than with collars). Tom/Andrie I have mine off the car if you guys want to give it a try.
10-10-2011 | 02:16 PM
#23
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From: Concord, CA
Were you able to find the instant center of each side with weight of driver? I’d be interested in taking your measurements and compare them to coilovers set at the same ride height/no RCA’s. Curious to see what the differences are in control arm angle, bumpsteer spacing and camber gain. I’ve got a stock S2k waiting on the JRZ’s if you catch my drift
10-10-2011 | 03:02 PM
#24
Joined: Jan 2011
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From: Bay Area
Great post Andrie and thanks for clarifying that the test you performed were based off a setup using roll center adjusters. Were you able to find the instant center of each side with weight of driver? I’d be interested in taking your measurements and compare them to coilovers set at the same ride height/no RCA’s. Curious to see what the differences are in control arm angle, bumpsteer spacing and camber gain. I’ve got a stock S2k waiting on the JRZ’s if you catch my drift
As far as the diff collars go, an alternative I recommend would be to try Hasport's Diff Mount Kit. I'm running the 62 duro street and at the softest option of the 4 they offer and they're by far better than the collars that we've installed on customers cars in the past (you can feel the torque transfer to the diff upon acceleration more so than with collars). Tom/Andrie I have mine off the car if you guys want to give it a try.
As far as the diff collars go, an alternative I recommend would be to try Hasport's Diff Mount Kit. I'm running the 62 duro street and at the softest option of the 4 they offer and they're by far better than the collars that we've installed on customers cars in the past (you can feel the torque transfer to the diff upon acceleration more so than with collars). Tom/Andrie I have mine off the car if you guys want to give it a try.
10-13-2011 | 09:35 PM
#26
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From: Emmett
10-13-2011 | 11:22 PM
#27
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From: bay area, ca
Originally Posted by BlackTrax' timestamp='1318276356' post='21057071
Were you able to find the instant center of each side with weight of driver? I’d be interested in taking your measurements and compare them to coilovers set at the same ride height/no RCA’s. Curious to see what the differences are in control arm angle, bumpsteer spacing and camber gain. I’ve got a stock S2k waiting on the JRZ’s if you catch my drift
10-16-2011 | 09:08 PM
#28
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From: Concord, CA
Not necessarily. The bump Travel on the s2k is limited by the tire hitting the front frame rail and the fender before any of the suspension component travel limit.
I did measurement on my personal car yesterday. I'll post the findings on the original post.
I did measurement on my personal car yesterday. I'll post the findings on the original post.
01-25-2012 | 03:08 PM
#30
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From: Concord, CA
I never said such things and should not be inferred as such. Never measured them without RCA, so it is inconclusive.