[DeTomaso] Rear accessory engine bay brace
gow2 at rc-tech.net
gow2 at rc-tech.net
Mon Jun 22 10:58:29 EDT 2015
Here is my .02c
The back of the car is built like a cardboard box without a lid. Everyone
knows this. This is elementary when you just look at the car. The front
has a lot more triangulated structure and I personally do not believe the
front brace is needed.
When I built my ladder bar I tied it into the roll bar. Truth when the
interior is finished the roll bar may not go in for a while...it won't be
needed right away and is easier to get in and out.
However the rear roll bar tubes are tied into the wheel well as well as
the roof supports.
These 2 pages show the process:
http://www.rc-tech.net/pantera1/ladder/lad.htm
http://www.rc-tech.net/pantera1/rollbar/roll.htm
Notice how their is a re-enforcement plate welded in to tie everything
together. The main cross brace was also re-enforced with extra metal:
http://www.rc-tech.net/pantera1/rollbar/roll16.jpg
http://www.rc-tech.net/pantera1/rollbar/roll21.jpg
The roll bar section bolted onto the roof at the decklid hinge:
http://www.rc-tech.net/pantera1/rollbar/roll20.jpg
Ladder bar finished:
http://www.rc-tech.net/pantera1/ladder/lad12.jpg
Even if you can't do the welding you could get most of it ready and have
someone else weld it:
http://www.rc-tech.net/pantera1/ladder/pad3.jpg
http://www.rc-tech.net/pantera1/ladder/lad7.jpg
http://www.rc-tech.net/pantera1/as3/EngComp1.jpg
Gary
> Dear Guys,
>
> Full disclosure.
>
> I have two Panteras. Pantera One has the bigger
> engine and brakes and the separate lower accessory engine bay brace for
> about twenty years. The other Pantera has less HP and brakes and the
> stock rear engine bay brace. They both have Koni suspensions with
> bigger spring rates plus poly bushings and seventeen inch wheels and
> fat tires.
>
> After the second run from Oklahoma out to Phoenix, I
> noticed that the paint on Pantera Two seemed to be cracking more than
> Pantera One. (more full disclosure the paint on Two dates to 1988 and
> the paint on One dates to about 2004). It was my opinion that the
> cracks on Two were possibly due to its weaker bracing with all the mods
> it has.
>
> I would like to have the triangulated cross braced
> rear brace, but I haven't seen one in years. Given my less frequent
> attendance at track events and my sub 500 hp engines, I think that the
> modest independent lower rear accessory brace should be all that I
> need.
>
> Right now I am in the process of removing the
> drivetrain and decided that once it is out, then I can have the lower
> brace welded in properly without the ZF in the way. I also decided to
> get the brace now so that I can place it properly *above* the top of
> the ZF while it is in situ and avoid that unpleasantness of a properly
> welded brace that is ever so slightly sits low enough to contact the
> ZF.....
>
> Warmest regards, Chuck Engles
>
> On Sun, Jun 21, 2015 at 9:51 PM, Mike Drew via DeTomaso wrote:
>
> > Terry,
>
> >
>
> > I don't know if anybody can definitively prove that but anecdotal
> evidence suggests that yes, it will stiffen the rear enough to solve
> that chronic problem. I run my car hard on the track with slicks
> (admittedly only a few times) and have had no cracks there.
>
> >
>
> > My A pillars where they join the too of the fenders are cracked to
> hell though. Larry Stock once actually snapped one clean off while
> running his car hard with slicks, before they invented the chassis
> stiffening kits....I had yet to install the front half of my kit. Must
> get on that someday....
>
> >
>
> > Mike
>
> >
>
> > Sent from my iPhone
>
> >
>
> > On Jun 21, 2015, at 19:45, "Himes, Terry (397C)"
> <terry.himes at jpl.nasa.gov> wrote:
>
> >
>
> > > Good Stuff.
>
> > >
>
> > > Does anyone know if this will prevent the stress cracks I see on my
> Pantera on the body, right at the top of the
>
> > > rear deck lid?
>
> > >
>
> > > Terry
>
> > >
>
> > >
>
> > >
>
> > > "Sometimes I think the surest signs that intelligent life
>
> > > exists elsewhere in the universe is that none of it has tried
>
> > > to contact us!"
>
> > >
>
> > > Terry W. Himes <03F35E2B-1DAE-4631-84D9-B3D240A22161[14].png>
>
> > > JPL Jet Propulsion Laboratory
>
> > > InSight Sequence Team Lead
>
> > > Rosetta/MEX Sequence Team Lead
>
> > > Phone: (818) 393-6261
>
> > > Cell: (818) 653-8213
>
> > > Fax: (818) 393-3147
>
> > > thimes at jpl.nasa.gov
>
> > >
>
> > >
>
> > > From: DeTomaso <detomaso-bounces at poca.com> on behalf of Mike Drew
> via DeTomaso <detomaso at poca.com>
>
> > > Reply-To: Mike Drew <MikeLDrew at aol.com>
>
> > > Date: Sunday, June 21, 2015 7:42 PM
>
> > > To: Asa Jay Laughton <asajay at asajay.com>
>
> > > Cc: "<detomaso at poca.com>" <detomaso at poca.com>
>
> > > Subject: Re: [DeTomaso] Rear accessory engine bay brace
>
> > >
>
> > > You are correct. Tuesday through Friday from 10-4 or thereabouts.
>
> > >
>
> > > Oddly, they no longer show the whole kit on the website. They only
> show the upper bar, and it's not the square bar they used to sell.
> Instead it's a round tube, of the type which comprises a portion of the
> Byars upper rear kit.
>
> > >
>
> > > I maintain that the original hall setup, consisting of a square
> tube upper and round lower, with a pair of triangulation tubes between
> them, is the ultimate setup. If the upper and lower parts are not
> connected to one another with these tubes, the effectiveness is
> drastically reduced, to the point where I would suggest that the lower
> piece is just a waste of time, and serves as little more than ballast.
>
> > >
>
> > > Mike
>
> > >
>
> > > Sent from my iPhone
>
> > >
>
> > > On Jun 21, 2015, at 19:15, "Asa Jay Laughton" <asajay at asajay.com>
> wrote:
>
> > >
>
> > > Dear Asa and Mike: I shall call Hall Pantera tomorrow.....but I
> seem to
>
> > > recall that they're closed on Mondays?? Chuck Engles
>
> > > -----Original Message-----
>
> > > From: Mike Drew [mailto:MikeLDrew at aol.com]
>
> > > Sent: Sunday, June 21, 2015 9:12 PM
>
> > > To: Charles Engles
>
> > > Cc: <detomaso at poca.com>
>
> > > Subject: Re: [DeTomaso] Rear accessory engine bay brace
>
> > > Chuck,
>
> > > I think Hall sells the individual pieces. I know Byars does not.
>
> > > Mike
>
> > > Sent from my iPhone
>
> > > On Jun 21, 2015, at 19:05, "Charles Engles" <cengles at cox.net>
> wrote:
>
> > > Dear Forum,
>
> > > Maybe the picture will come
> through.
>
> > > I am trying to find an accessory rear engine bay brace like the
> one in
>
> > > the picture. Does anyone know if the vendors still offer it?
> When I
>
> > > checked recently, it didn't seem to be available and the only
> thing
>
> > > that was available was the complete front-rear-top-bottom Pantera
>
> > > chassis stiffening kit. No pieces sold separately. I would
> like to
>
> > > find one.
>
> > > Warmest
> regards,
>
> > > Chuck Engles
>
> > > <DSC_0004 (2).JPG>
>
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>
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