[DeTomaso] ZF Mounted Inboard Brakes

Tue Jun 5 17:21:00 EDT 2012

I also wonder if outboard brakes benefit from direct contact with the wheels.  There has to be some heat sink effect going on there.  You wouldn't benefit nearly as much mounted next to a hot ZF.

I used to own a 93 Mustang Cobra.  They had wheels with louvers cast in them.  The louvers worked like little fans sucking air away from the brakes.  At least that was the theory.

On Jun 5, 2012, at 4:09 PM, Tomas Gunnarsson wrote:

> 116 series Alfa Romeos have inboard rear brakes. This is on a front engine,
> lighter and less powerful car than the Pantera. When brake cooling becomes
> an issue the first major mod is to adapt vented rotors in the stock
> position. The stock rotors are around 250 mm in dia BTW. Next step is moving
> the rotors to the wheels where cool air is readily available and rotor size
> is by all practical means unlimited. Kinda the opposite of what was done
> here. This seems more like a show car modification than a track car
> improvement.
> 
> Tomas
> 
> -----Original Message-----
> From: detomaso-bounces at realbig.com
> [mailto:detomaso-bounces at realbig.com]On Behalf Of
> michael at michaelshortt.com
> Sent: den 5 juni 2012 22:16
> To: Julian Kift
> Cc: asajay at asajay.com; De Tomaso List
> Subject: Re: [DeTomaso] ZF Mounted Inboard Brakes
> 
> 
> IMHO it's not a modification with any real advantage, lots of work and
> expense, damage to to the ZF, and a much worse rotor cooling issue.
> 
> The advantages in a 100% Sports Racing car are moving the mass closer to
> center, and for endurance cars, a much faster pad change.
> 
> But racing cars care about weight, to really be this anal about weight, you
> should also lose the passenger seat, use an AL racing shell for the driver,
> remove the radio, the A/C, the carpet,
> the door panels, replace the glass with Lexan, the headliner, use a 50%
> less heavy gel cell battery, no bumpers, have CF doors, hood, deck lid, and
> an AL block.
> 
> Most of which would be more beneficial that having inboard brakes.
> 
> But if you have unlimited money and want to impress other Pantera owners (
> since we're going to be the only ones to know the difference ), it would be
> neat to see what was fabricated.
> 
> Michael Shortt
> 
> 
> 
> On Tue, Jun 5, 2012 at 3:55 PM, Julian Kift <julian_kift at hotmail.com> wrote:
> 
>> 
>> IIRC it requires some modifications by way of machining or welding to the
>> ZF case, which maybe a deterent to many.
>> 
>> Julian
>> 
>> 
>>> Date: Tue, 5 Jun 2012 12:37:33 -0700
>>> From: asajay at asajay.com
>>> To: detomaso at realbig.com
>>> Subject: Re: [DeTomaso] ZF Mounted Inboard Brakes
>>> 
>>> Yes, Ted Mitchell showed this off in the Ballroom of a past Las Vegas
>>> Fun Rally some years ago. I have photos of it somewhere. I don't
>>> think it turned into a sought after mod.
>>> 
>>> Asa Jay
>>> 
>>> Quoting The DeTomaso Registry Guy <detomasoregistry at gmail.com>:
>>> 
>>>> 
>>>> 
>>>> The other day I was asked to post photos of a cable shifter for our
> ZF.
>>>> 
>>>> 
>>>> 
>>>> Then Saturday I took a sporty drive thru the mountains in a vintage
>> Jag.
>>>> 
>>>> 
>>>> 
>>>> These two things reminded me of the topic of inboard brakes, a la
>> Jaguar. I
>>>> remembered
>>>> 
>>>> seeing a ZF with the brake rotor assembly mounted on the ZF, so I
>> started
>>>> searching for photos.
>>>> 
>>>> I think this was Ted Mitchell's work, not sure.
>>>> 
>>>> 
>>>> 
>>>> ZF mounted brakes has been discussed some time ago, but in searching
>> the
>>>> archives
>>>> 
>>>> I could not find the thread.
>>>> 
>>>> I guess the archives search function still sucks, I even used a
>> google-based
>>>> deep mine
>>>> 
>>>> search technique without success. Anyway.
>>>> 
>>>> 
>>>> 
>>>> One advantage of this design is that it moves the rear brake weight
>> from the
>>>> un-sprung
>>>> 
>>>> side of the equation to the sprung side.
>>>> 
>>>> 
>>>> 
>>>> One disadvantage is that it adds heat to the ZF, it is also a bit
>>>> complicated.
>>>> 
>>>> 
>>>> 
>>>> While adding vintage photos to the DeTomaso Registry, I stumbled
> across
>>>> photos of a so-equipped
>>>> 
>>>> ZF. I'm adding these photos to the ever-growing section on our beloved
>> ZF,
>>>> find the link under the welcome photo.
>>>> 
>>>> 
>>>> 
>>>> http://www.provamo.com/Members/ProvaMoMemMain.asp
>>>> 
>>>> 
>>>> 
>>>> Chuck Melton
>>>> 
>>>> (The Registry Guy)
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
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>>> 
>>> 
>>> 
>>> --
>>> Asa Jay Laughton - sent from somewhere other than home
>>> ******************************************************
>>> http://www.racingagainstautism.com
>>> http://www.teampanteraracing.com
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> 
> --
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> 
> 
> Michael L. Shortt
> Savannah, Georgia
> www.michaelshortt.com
> michael at michaelshortt.com
> 912-232-9390
> 
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