[TPR] GR4 Racing Brakes

[Mad Dog Antenucci]

Pat,

I'm copying Ken Green on this thread as Ken is/was involved in developing 
Porsche turbo brake system for Pantera. And as I recall they are on at least 1 
Pantera that is being driven.

Dennis
 
Mad Dawg Antenucci 
Team Pantera Racing 
The 1st & still the only vintage race team in open road racing 
www.teampanteraracing.com




________________________________
From: Patrick Hals <patrickhals at gmail.com>
To: Mike Trusty <miketrusty at msn.com>; tpr at teampanteraracing.com
Cc: Mad Dog Antenucci <teampantera at yahoo.com>; TRIGAUX Guy 
<gt4-2860 at charter.net>
Sent: Sat, December 4, 2010 12:56:20 PM
Subject: GR4 Racing Brakes

Tks Mike, I love it !
There was one set for sale on Ebay recently.
I'll keep you up.
As anyone tried the Porsche 930 turbo ( 1979 or so ) calipers and rotors ? 
That's what Guy Trigaux runs on LM factory GR4 2860 ( and they are FIA 
homologated ) The rotors are vented and drilled, and the calipers are 4 
pistons.( Guy, correct me if I'm wrong)
I run "standard" GR4 calipers and rotors on Candy, ( similar to Lola T70 ) 
without booster, and those are far from reaching the limit of the tyres ( and 
the car ) It is very frustrating... I wish to improve this aspect of the car, 
preferably with some FIA  "homologated" spares, like the Porsche ones.
Not being a mechanic myself, I wonder if it is easy ( or complicated ) to 
fabricate adapters to fit the " new " calipers to the existing configuration of 
the brake assembly.
Pat ( wishing you all a good w e , snowing in Brussels ) )
----- Original Message ----- From: "Mike Trusty" <miketrusty at msn.com>
To: "'Patrick Hals'" <patrickhals at gmail.com>; <tpr at teampanteraracing.com>
Sent: Saturday, December 04, 2010 7:47 PM
Subject: RE: [TPR] GR4 Racing Brakes


> Photo 1 is the front caliper which is the "GN" Grand National unit.  I have
> run 15" Gotti wheels with this setup and it should work with 15" Pantera
> wheels.  These are 17" wheels.
> 
> Photo 2 is the back side of the front caliper showing the required adapter.
> The adapter is very easy to make.  You can also see the model number on the
> caliper.  Note that they are left and right specific.  The last two letters
> in the model number designates that.  Also note the massive clearance with
> 17" wheels.
> 
> Photo 3 is the rear six piston caliper.  They are the Wilwood Billet
> Superlite 6 lug mount calipers.  They are also side specific.
> 
> Photo 4 is a picture of the front 15" Halibrand wheel on my GT40 that uses
> the same GN caliper with 12.19" rotors and they fit in this cast wheel.
> Tight but fit with no mods.
> 
> These brakes were designed and used on 3,000 lb Winston Cup cars and are a
> lot of brake for a Pantera.
> 
> I have driven Gary Halls Burgundy Express race car at Pocono with these
> brakes.  He had a booster in the system and I considered them as too
> sensitive with the booster.  Very touchy with the booster.  I use a manual
> balance bar system and really like the feel.  The list price on the calipers
> is about $385 each for the fronts and $374 each for the rears but you can
> likely find them cheaper than that.
> 
> Mike Trusty
> Mike Trusty Engineering
> 15119 Gorgeous View Trail
> Little Rock, AR  72210
> 501-224-9013
> 
> 
> -----Original Message-----
> From: Patrick Hals [mailto:patrickhals at gmail.com]
> Sent: Saturday, December 04, 2010 3:26 AM
> To: Mike Trusty; tpr at teampanteraracing.com
> Subject: Re: [TPR] GR4 Racing Brakes
> 
> Hello Mike,
> Yes, please send ref.numbers and pics.
> Asa, I was able to open the attachment, tks.
> I'll get familiar with it so I can bombard the list with sexy Pantera pics
> :>))
> Good week end to you all !
> Pat
> ----- Original Message ----- From: "Mike Trusty" <miketrusty at msn.com>
> To: "'Patrick Hals'" <patrickhals at gmail.com>; <tpr at teampanteraracing.com>
> Sent: Friday, December 03, 2010 11:31 PM
> Subject: RE: [TPR] GR4 Racing Brakes
> 
> 
>> Patrick:
>> 
>> You might consider the Wilwood "GN" six piston calipers on the front with
>> 12.19" rotors.  I also have a six piston Wilwood caliper on the rears with
>> the same size rotors.  The rear caliper has a smaller displacement and I
>> can
>> get you the model number if you need.
>> 
>> I have this system on both my Pantera and my GT40 and it works very well
>> and
>> it works with the 15" wheels that I have tried.  The Halibrands are tight
>> but they fit.
>> 
>> They are probably the most reasonably priced calipers out there that can
>> stand up to what you will be putting them through.
>> 
>> I can get you pictures and model numbers tomorrow if you like.
>> 
>> Mike Trusty
>> Mike Trusty Engineering
>> 15119 Gorgeous View Trail
>> Little Rock, AR  72210
>> 501-224-9013
>> 
>> 
>> -----Original Message-----
>> From: tpr-bounces at teampanteraracing.com
>> [mailto:tpr-bounces at teampanteraracing.com] On Behalf Of Patrick Hals
>> Sent: Friday, December 03, 2010 4:01 PM
>> To: tpr at teampanteraracing.com
>> Subject: [TPR] GR4 Racing Brakes
>> 
>> Hi Dawg
>> Willing to improve Pantera racing brakes for a GR4 replica that I'd like
>> to
>> show you " live".
>> What do you suggest ( not 997 R brakes please , something I can afford
>> financially, with 15" FIA legal wheels for European racing)
>> Is it possible to post pics on this forum ?
>> Isn't it about time to improve the level of communication by posting pics
>> ?
>> Many thanks for your precious experience
>> Pat
>> Candy 2862- ADA 9628
>> ----- Original Message ----- From: <tpr-request at teampanteraracing.com>
>> To: <tpr at teampanteraracing.com>
>> Sent: Friday, December 03, 2010 9:00 PM
>> Subject: TPR Digest, Vol 2, Issue 3
>> 
>> 
> 
> 
> 
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