Question when replacing suspension

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Jan 18, 2015 | 06:24 PM

#31

Fokker

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Joined: Mar 2013

Posts: 3,171

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From: Tucson, AZ

Quote:

Originally Posted by gptoyz

Quote:

Originally Posted by Fokker

Having daily driven polyurethane with stock shocks and coils, I can say 95A poly is entirely liveable on the street and adds minimal NVH. With stiffer springs it could be a problem for some. Mugen and Spoon are around 65A and still rely on deflection to allow for movement, which means there's a greater possibility for deformation of the suspension geometry under high loads.

I'm not debating the benefit of poly vs rubber, however each individual has a different tolerance level for nvh, what you determine to be minimal, another will determine to be unbearable

And most importantly some people don't want to take apart their suspension annually to regrease poly bushings or drill holes for zerk fittings.

I found the Prothane bushings less harsh than the OEM rubber. There's some pretty rough (crappyx2) roads in Tucson, and where the OEM was jarring, the poly communicated the same information without beating me up.