[DeTomaso] Wilwood Squeal

[JDeRyke at aol.com]

In a message dated 11/4/09 11:07:36 AM, wdemelo at cogeco.ca writes:

> I have BP20 and I chamferred the edges and still got a squeal. I'm going 
> to try the shims.
> 
Biggest problem I see with using anti-vibration shims or paints on Wilwood 
calipers is, the open end of each piston that contacts the pad backing is 
very thin- for weight reduction, these being racing calipers- so under hard 
braking, I'd expect the piston edge to simply cut thru any sort of soft shim 
in short order. Stock calipers tend to use pistons with much thicker 
contact-flanges, and on such assemblies, shims or paints might have longer lives. 
Wilwood calipers normally include any of two different compound pads; 
rather than fiddling, I'd suggest cutting right to the chase and buying 
non-squealing R-4s pads from Porterfield. Incidently, the noise is not distasteful to 
me; its mostly that on our Pantera with Wilwood Superlite 2s in front, 
Porterfield R-4s pads work better street and track than "stock" pads included 
with my Wilwoods. So much so that I added Porterfield pads in the same 
compound to our Porsche/ATS rear calipers. FWIW- J Deryke (still getting caught up 
with 845 messages.....)