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The mkiv Supra Owners Club

BC Coilovers type RS or RA - Pillowball or not?


rob_sri

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RA -

 

For Street and Circuit Use

Front : Pillowball Top Mount

Rear : Rubber Top Mount or No Top Mount

 

RS -

 

For Street and Circuit Use

Front : Rubber Top Mount

Rear : Rubber Top Mount

 

Which is best to go for.. will be mainly street with occasional track driving.. its not my daily so im not opposed to a stiffer set up if it will dramatically improve handling or feel!

 

what is best and why?

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If you drive it mostly on the street I would go for rubber top mounts as it will make the car less reactive and twitchy on crapy roads. Pillow ball top mounts are generally used on track cars that run on very smooth surfaces and benefit from a tighter suspension setup

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I just got some BC coilovers and asked Lee SRD the same question, no need for the top mounts for street use was the answer, so I went for that and I'm very happy with how they are. Not much of an answer but I think fastcar and swampy242 say it better.

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It is a weekender so I've gone with RAs as they weren't that much more expensive.. That was before reading your advice though guys! I'm a little impatient haha still maybe this means il have to do some more track days :) I rang BC and spoke to their customer service who said that their pillowballs aren't that noisy and will sharpen up responsiveness and feel

 

Car sounds like a jet taking off anyway haha

Edited by rob_sri (see edit history)
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i wouldn't touch HSD's with a bargepole anymore. less than 12 months old and there rattling there nuts off and 2 are leaking already. Not to mention i came to tweak the rideheight after 6 months when i got my new wheels they were rusted solid on the adjusters.

 

Been using BC's alot recently in various projects and more than happy with the quality. for there price you can't go wrong.

 

as for rubber or pillowball tops just go with rubber, deflection at the topmount won't effect suspension geometry so you can go with the rubber to give a better ride quality and less vibration.

 

Tim :)

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