We are a distributor for KFP and have been involved with their product
since they started. Ted
On 7/10/2018 8:01 PM, Dennis DeLap via Fot wrote:
> Also try KFP magnum pads.
> Pauric inc. Canton Ohio
> 330-453-9757
> ------------------------------------------------------------------------
> Sent: ?7/?10/?2018 4:41 PM
> Subject: [Fot] brake pad and rotor discovery and update
>
> Hello Friends,
>
> I have been finding out quite a bit about the unusual and developing
> front brake pad, rotor and caliper issues that I have discovered on my
> TR3.
>
> What I found was that the Carbotech CT-57 pads were causing the problem.
>
> The supporting or backing plates of the pads had been ground down at
> Carbotech, far under the normal plate width that I measured in 4 other
> production pads that I have on hand.? Besides that, they were not
> ground down squarely.
>
> This allowed the piston to take tremendous side load under braking
> causing the uneven and diagonal wear pattern in the pads.? This also
> caused the rotor to contact the caliper as the pads took on heavy
> uneven wear.
>
> The slot in the TR6 caliper is 3.095" and the four non-Carbotech pads
> sets have a plate width of no less than 3.082".? The Carbotech plates
> have an out of square measurement of 3.030-3.050".? That's as much as
> .065" clearance in the caliper slot.
>
> The plates have too much clearance.? I found that a maximum of .010"
> backing plate to caliper slot clearance is more normal.? One set of
> pads have only .005" clearance.
>
> Furthermore, the corners of the Carbotech plates and pads were ground
> down far enough that the lower end of the pads hardly made contact
> with the caliper slot allowing more stress on the caliper piston.
>
>
> I have been going back and forth with Carbotech on this matter and I
> will be sending back the badly worn set along with a brand set that
> have the same production issues.? I bought the two sets at the same
> time last August.
>
>
> What I found is that any backing plates that show evidence of sanding
> or grinding marks should be measured for proper clearance, but that
> really, there should be no sanding or grinding marks...ever.
>
>
> All of the other pads I have show no evidence of sanding or grinding
> marks.? The previously shaped friction pads are cleanly attached to
> the backing plates and the backing plate is revealed around the
> friction material.? Only the backing plate makes contact with the
> caliper slot.
>
>
> It looks like I have to find another race pad supplier.
>
>
> Thoughts?
>
>
> Dave H.
>
> 831-234-4928
>
>
>
>
> _______________________________________________
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>
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>
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>
>
--
Ted Schumacher
tedtsimx at bright.net
http://www.tsimportedautomotive.com
108 S. Jefferson St.
Pandora, Ohio, USA 45877
Fax: 419.384.3272 (24 Hrs.)
Phone: 800.543.6648 (US & Canada)
Tech/ Gen. Information/ Worldwide: 419.384.3022
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