[DeTomaso] Techno Question: Competion Brakes
Ken Green
kenn_green at yahoo.com
Sun Nov 1 01:03:29 EDT 2015
Chuck,
There were no issues with the Porsche calipers. I just ran into the reality that several dimensions have to be worked out:
1) had to go to 17 inch front wheels;2) had to make sure the wheel cleared the face of the caliper; and3) had to find rotors that matched the radial sweep of the pads.
It turns out that the 996 Turbo calipers use big pads. It took some looking, but I found a perfect fit in a Coleman Racing rotor.
I still think the 996 Turbo calipers are a perfect upgrade for anything short of very serious racing. I also don't want to go bigger than 17 inch front wheels, I personally think 18 inch front wheels are just too big. I also like using calipers that are made for long term use on a street car, without frequent maintenance, a huge pad selection, and repair parts should be available indefinitely. The 996 Turbo has nearly the identical weight distribution and the calipers had to meet German vehicle requirements. And they look really good!
Ken
From: Charles Engles <cengles at cox.net>
To: 'Ken Green' <kenn_green at yahoo.com>; detomaso at poca.com
Sent: Saturday, October 31, 2015 1:31 PM
Subject: Re: [DeTomaso] Techno Question: Competion Brakes
Dear Ken,
......since I am not racing for money, I think the brake
budget is a lower than the stratosphere of exotic brake materials...but
your comments are well taken.
I recall your Porsche brake project. I am surprised
that given your engineering skills and automotive enthusiasm that the
Turbo brakes were unexpectedly problematic. If you had it to do all
over, then would you still go Porsche Turbo or would you opt for an
aftermarket street/track brake system??
Warmest regards, Chuck Engles
From: Ken Green [mailto:kenn_green at yahoo.com]
Sent: Saturday, October 31, 2015 3:24 PM
To: Charles Engles; detomaso at poca.com
Subject: Re: [DeTomaso] Techno Question: Competion Brakes
Seems like the answer depends on wheel and bank account size? The best
stuff uses light weight carbon-ceramic rotors and is probably over $10K
if you can find something that fits. I also was told that the
carbon-ceramic rotors do not have nearly the heat capacity of a heavy
iron rotor, so you need to do something to help dissipate the heat
before it cooks the wheel bearing.
I worked with a local shop to adapt Porsche 996 Turbo calipers and ran
into all kinds of issues I did not anticipate. It all worked out well,
but not easily. I think there are advantages to adapting a street car
system if you can, because there will be a lot of pad options and parts
to maintain the calipers. But you may be forced to 18 inch wheels to
clear the rotors because that seems the minimum for current super
cars. Looks like the Wilwood carbon-ceramic rotor kits use 14 inch
rotors which probably require 18 inch wheels.
Ken
_______________________________________________________________________
From: Charles Engles <[1]cengles at cox.net>
To: [2]detomaso at poca.com
Sent: Saturday, October 31, 2015 12:02 PM
Subject: [DeTomaso] Techno Question: Competion Brakes
Dear Forum,
I ran the Pantera at TWS. I have twenty +
year old Pantera Performance Center brakes, namely, the "NASCAR" set
up
IIRC. Six piston calipers in the front and four piston in the rear.
IF I was keen to go back to the track and
IF I
wanted the current "state of the art" brake system.......THEN what
are
the best regarded competition rotors and calipers with quick change
pads currently??
Curious, Chuck Engles
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-------------- next part --------------
Chuck,
There were no issues with the Porsche calipers. I just ran into
the reality that several dimensions have to be worked out:
1) had to go to 17 inch front wheels;
2) had to make sure the wheel cleared the face of the caliper; and
3) had to find rotors that matched the radial sweep of the pads.
It turns out that the 996 Turbo calipers use big pads. It took
some looking, but I found a perfect fit in a Coleman Racing rotor.
I still think the 996 Turbo calipers are a perfect upgrade for
anything short of very serious racing. I also don't want to go bigger
than 17 inch front wheels, I personally think 18 inch front wheels are
just too big. I also like using calipers that are made for long term
use on a street car, without frequent maintenance, a huge pad
selection, and repair parts should be available indefinitely. The
996 Turbo has nearly the identical weight distribution and the calipers
had to meet German vehicle requirements. And they look really good!
Ken
__________________________________________________________________
From: Charles Engles <cengles at cox.net>
To: 'Ken Green' <kenn_green at yahoo.com>; detomaso at poca.com
Sent: Saturday, October 31, 2015 1:31 PM
Subject: Re: [DeTomaso] Techno Question: Competion Brakes
Dear Ken,
......since I am not racing for money, I think the
brake
budget is a lower than the stratosphere of exotic brake
materials...but
your comments are well taken.
I recall your Porsche brake project. I am surprised
that given your engineering skills and automotive enthusiasm that the
Turbo brakes were unexpectedly problematic. If you had it to do all
over, then would you still go Porsche Turbo or would you opt for an
aftermarket street/track brake system??
Warmest regards, Chuck Engles
From: Ken Green [mailto:[1]kenn_green at yahoo.com]
Sent: Saturday, October 31, 2015 3:24 PM
To: Charles Engles; [2]detomaso at poca.com
Subject: Re: [DeTomaso] Techno Question: Competion Brakes
Seems like the answer depends on wheel and bank account size? The
best
stuff uses light weight carbon-ceramic rotors and is probably over
$10K
if you can find something that fits. I also was told that the
carbon-ceramic rotors do not have nearly the heat capacity of a heavy
iron rotor, so you need to do something to help dissipate the heat
before it cooks the wheel bearing.
I worked with a local shop to adapt Porsche 996 Turbo calipers and
ran
into all kinds of issues I did not anticipate. It all worked out
well,
but not easily. I think there are advantages to adapting a street
car
system if you can, because there will be a lot of pad options and
parts
to maintain the calipers. But you may be forced to 18 inch wheels to
clear the rotors because that seems the minimum for current super
cars. Looks like the Wilwood carbon-ceramic rotor kits use 14 inch
rotors which probably require 18 inch wheels.
Ken
_______________________________________________________________________
From: Charles Engles <[1][3]cengles at cox.net>
To: [2][4]detomaso at poca.com
Sent: Saturday, October 31, 2015 12:02 PM
Subject: [DeTomaso] Techno Question: Competion Brakes
Dear Forum,
I ran the Pantera at TWS. I have twenty
+
year old Pantera Performance Center brakes, namely, the "NASCAR"
set
up
IIRC. Six piston calipers in the front and four piston in the
rear.
IF I was keen to go back to the track and
IF I
wanted the current "state of the art" brake system.......THEN what
are
the best regarded competition rotors and calipers with quick change
pads currently??
Curious, Chuck
Engles
_______________________________________________
Detomaso Forum Managed by POCA
Posted emails must not exceed 1.5 Megabytes
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