Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

roller perches?

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Old Jan 17, 2009 | 12:23 PM
  #1  
built67's Avatar
built67
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Default roller perches?

i know this is going to sound stupid, but what exactly is a roller perch, where is it located, and is it a lot better than a spring perch? i was checking them out from opentrackerracingproducts.com thanks
Old Jan 17, 2009 | 01:02 PM
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BUY IT ! It's thesaddle that holds you coil spring and shock. It lets the shock work the way it is supposed to. The rubber ones are so stiff, they put the shock in a bind. Ever lift the car, and le tthe suspension hang ? Notice how the coil bends outward ? It's because the perch won't turn, and it forces the bottom of the coil out, which is also what causes the shock bind. Do that with a roller perch, and the coil will be stright up and down.
Old Jan 17, 2009 | 01:30 PM
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I actually broke a shock last year, and I'm partially blaming my stiff spring perches for that. Came up fast over a rise (top of suspension), came down hard (bottom of suspension), CLANK. Almost brand new Edelbrock. I have roller perches now
Old Jan 17, 2009 | 02:34 PM
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Thinking about it a little, swapping to roller perches means you could (and possibly should) choose slightly stiffer springs than you would if you were going to stay with the original design. There is a slight reduction in front roll stiffness due to the "lost" stiffness from bushing resistance, and this could either "tighten" or "loosen" the handling a little.


Norm
Old Jan 17, 2009 | 03:11 PM
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My suspension is slightly smoother than I expected with the new 540lb springs, but I still wouldn't want 620's.

Last edited by Starfury; Jan 17, 2009 at 03:48 PM.
Old Jan 17, 2009 | 03:50 PM
  #6  
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What do you guys think about those new "double-saddle" rollers?
Old Jan 17, 2009 | 05:36 PM
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Eh? Link?
Old Jan 17, 2009 | 06:25 PM
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I've started a set...(but hadn't finished welding them up)

Check out Day's site on how to build them yourself.

http://dazed.home.bresnan.net/opentracker
Old Jan 17, 2009 | 06:31 PM
  #9  
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http://www.opentrackerracingproducts...ckrollerperch/
Old Jan 17, 2009 | 07:02 PM
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That's what we're talking about, Nic Although I had Daze fab me up a pair.



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