Performance brake pads for UFO's

Brett Dikeman brett at
Tue Aug 22 17:18:53 EDT 2006

On Aug 22, 2006, at 3:09 PM, db cornett wrote:

> I searched the DB and didn't see what I was looking for.  Has  
> anyone used some performance street pads for the UFO's lately?   
> Good or bad experience?  Sources please.

Porterfield R4 pads are fantastic for the track, but not recommended  
for the street as they don't bite quite enough when cold, for the  
street.  You can plant your foot on the floor at highway speed and  
the car will slow as if you were braking normally- and then a second  
later, your face is against the windshield.  I got used to it and it  
certainly does make you pay a lot more attention to modulating your  
brakes, but they're almost unsafe when cold.

   I have R4S pads on the car now and they too squeal like a city bus  
(they're better though).  I didn't use any anti-squeal stuff (and  
I've never had to, with OEM pads.)  They grip more when warm/hot, but  
have much better cold bite and it's not as sharp a transition.

My R4 set were way too large and had to be filed down.  The R4S pads  
were sized perfectly.  I have the boxes somewhere, along with the  
invoice...I'll see if I can find some part numbers for you.


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