Re: P-car brakes on a non-P-car

["Graydon D. Stuckey" <graydon@apollo.gmi.edu>]

On Mon, 21 Apr 1997, Mann Law wrote:

> 	If I am reading correctly, Ross had the Porsche brakes on a 5k, 
> and Scott is putting them on an UrQ.  I *would have* bet several 
> Franklins on the fact that such brakes would not fit--at least not 
> without major re-manufacturing work.  Would I have lost the bet?  
Bruce,

	I'll take that bet!   What... you already checked?   Shucks.

	Honestly, it wouldn't take too much work, depending on which
calipers you chose.  I had a caliper from a 911 on my car briefly.  It
bolted right onto the Audi strut.  It was a little off-centre relative to
the rotor, and it didn't clear the wheel because the two outside pistons
stuck outboard too far.  The first condition would have been easy to fix
with a very simple spacer.  I am sure the pistons would fit now too with
my 16"  wheels.  In fact though, they did not increase the swept area at
all, so the only benefit that I could see was improved pedal feel from
having 4 pistons, instead of a sliding caliper.  I also checked out Mazda
RX7 calipers (also very nice aluminum 4-pot units) and the C4 Corvette
calipers, but they both had less pad area than the Girling 60 calipers. 
Now if you had a larger rotor made, and a bracket to move the caliper
outward, then you could improve your stopping distance. 

Later,
Graydon D. Stuckey 
'86 5KCSTQ - Lotsa Go-fast Toys!
'89 T-bird - Lotsa Look-Good Toys!  (don't need any more Go-fast toys!)
'85 RX7    - pooooooor baby, No Toys!  :-(