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Stoptech trophy problem front rotor grinding lower control arm

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Old 04-16-2019, 11:35 PM
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Default Stoptech trophy problem front rotor grinding lower control arm

Hi All,

I hit a problem after installed the 328mm trophy stoptech BBK.
So the front rotor touches the lower control arm. Wondering anyone here could help with the solution?

Obsessed garage the guy put it on his CR got the same problem but I couldn't find a solution from him also.

Anyone?

Thanks all!


Old 04-17-2019, 12:10 AM
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Is it touching with steering angle straight as well?
Rotor and hat assembled correctly?
Old 04-17-2019, 12:25 AM
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Yes it is touching ESPECIALLY angle straight
Old 04-17-2019, 12:45 AM
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It looks like the hub is offset towards the inboard of the car with these ball joint spacers, are the spacers offset ? if so try 180 them to see if the clearance is the same.

Was kit was designed with the ball joint spacer / offset spacer in mind. Do you have a standard ball to test the fitment ?
Old 04-17-2019, 12:56 AM
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Good point.
Normally you would use these offset camber joints to ad more negative camber by pushing hub further out, this should give more clearance.
Removing the roll center correcting spacer might help some as well.
Old 04-17-2019, 03:17 AM
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I too, was wondering why you have your lower ball joint offset so that the hub moves inboard or straight down. Usually, you use those to move the hub outboard.
Old 04-17-2019, 05:40 AM
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Obsessed garage had his balljoints installed incorrectly
Old 04-17-2019, 12:50 PM
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IDK, it seems to me like the extended ball joint is the obvious cause of this, unless i'm missing something. I've installed 2 trophy kits and 1 standard stoptech kit and they all had ample clearance (cars all had OEM joints).
Old 04-17-2019, 12:57 PM
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I'm running the trophy kit and these same offset ballpoints with roll center plate included as pictured and have no rubbing issue on my rotor. Seeing as its touching the lower control arm by the castle nut and not the ball joint, it shouldn't matter which way it was orientated as its still going to rub there, so that is a head scratcher.

Why does your control arm look silver?

You said same problem on another s2k? Maybe the wrong rotors for another car with a different offset or rotor thickness were sent with this kit?

All else fails, take 2-3mm off with an angle grinder. Problem solved.

Last edited by s2000Junky; 04-17-2019 at 01:06 PM.
Old 04-17-2019, 02:05 PM
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I think he just needs to flip the joints to "negative".

It definitely matters which way they go. If you flip them toward "positive", you move the ball joint stud and nut outboard (toward the rotor).


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