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RE: STU and Subframe Connectors, Etc

To: autox@autox.team.net,
Subject: RE: STU and Subframe Connectors, Etc
From: "Thompson, Adrian (A.L.)" <athomps9@visteon.com>
Date: Thu, 11 Nov 1999 12:06:25 -0500
OK, I see a big problem with not letting a welder any where near the
vehicle.  

On your version of the rules (OK not the official published ones but all
anyone has to go on right now) It states:

STU.1 AUTHORIZED MODIFICATIONS

    A. All allowable modifications in Stock Category are allowed.

    B. All allowable modifications in the Street Prepared Category are
allowed.

SP rules 14.8.E state:

Addition or replacement of suspension stabilizers (Linkage connecting axle
or De Dion to the chassis which controls lateral suspension location) is
permitted.  Traction bars or torque arms may be added or replaced.   A
panhard rod may be added or replaced.    Methods of attachment and
attachment points are unrestricted.

That means you can weld in your panhard/torque arm whatever.  Are you going
to disallow that? if so you've just banned 90% of the ESP legal Mustangs
from coming to play with you.

I won't even start the torque arm attaching to subframe connectors debate
again :)

Next.

STU.2 BODYWORK

    C. Bolt-in chassis re-enforcing members are allowed, but are limited to:

        One (1) front upper strut bar, with no more than 5 attachment
points. 
        Two (2) lower front chassis braces, with no more than 3 attachment
points each 
        One (1) rear upper strut bar, with no more than 4 attachment points 
        Two (2) rear subframe connectors, with no more than 2 attachment
points each 

How do you define an attachment point?

Most of the flimsy bolt in subframe connectors for Mustangs use two bolts at
each end.  Is that one or two attachments at each end?  If you'll allow two
bolts each end could you additionally/instead continue the 'mount' from your
subframe connector horizontally onto the floor pan are then bolt vertically
through the floor as well?


Adrian Thompson



-----Original Message-----
From: dg50@daimlerchrysler.com [mailto:dg50@daimlerchrysler.com]
Sent: Thursday, November 11, 1999 11:29 AM
To: Chan, Albert (GEP)
Cc: 'f-body autox list'; autox@autox.team.net
Subject: Re: STU and Subframe Connectors, Etc






This isn't aimed at you Al (thanks for sticking up for me) - this is more
for
the population at large.

F-body list guys, I'm not on your list. If you want me to see replies,
you'll
have to CC me.

> In regards to the posts regarding the STU (or to be named "Street
> Modified") proposal, it still hasn't been finalized. There's still the
> opportunity to lobby for welded SFCs and other things.

While technically true, there are a couple of things that I think are pretty
well graven in stone:

1) No 2 seaters.
2) No welded structural re-enforcements
3) The displacement limits as written
4) There will be no emissions requirements (but there may be a street
registration requirement)

> Dennis Grant has championed the STU concept for the last year, and has
> done everything by himself, with input from others.

To be fair to everyone, the allowing of the big-inch non-turbo motors was a
relatively new development. NWOR has it in their version of STU for a year
(and
it works there), and Howard and I have been discussing it irregularly for
the
past couple of months. He made his final decision yesterday.

I'm ALREADY taking flak from the riceboy crowd about this, and now I have a
very
difficult job to do - sell this as fair. Thank god for ESP, Fedja, and Brian
-
now I have proof that the small-displacement-turbocharged cars can run with
the
big-inch monsters - but this is a hard, hard sell. There is a lot of bad
blood
between elements of the F-Body crowd and the riceboy crowd, and it falls to
me
(it seems) to smooth this over.

For the V8 guys - this was supposed to be the riceboy class. It was decided
to
allow you guys to come play with us, but this is OUR CLASS - and one of the
things we had all agreed on for our class was that we were going to be as
weenie-free as possible. That means if some guy with a turbo Civic has to
cut a
3" hole in his rad support to fit his intercooler piping, that's OK. If that
Accord had to put a dent in his firewall to accomodate his Japanese-spec
motor,
that's OK. Seam-weld the car, or strip out the sound-deadening, and we'll
toss
you out.

We had also agreed that we wanted to be the "riceboy CP" at least as far as
off-track behaviour was concered - ie, we have a whole lot of fun, and we do
it
together. That means there can't be any serious V8 vs riceboy hostillity
going
on. We're all one big happy family, kapish?

I STRONGLY suggest that anyone considering running SM next year join the
mailing
list - it's linked off our web page. And read the FAQ too.

> He knew that SFC was a desire for the pony car crowd, but since he doesn't
>
have one,

Well, actually, I raced Trans Ams for a number of years before I discovered
the
SCCA (I was even on the 2gen f-body list circa '96), so I know full well all
about SFCs and why the various subframed V8 cars want them. I also know that
weld-in SFCs are like a thousand times more effective. But at the same time,
SM
(nee STU) is a bolt-in class - and SFC's are very specific to certain types
of
cars. If we allow weld-in connectors, then we effectively allow (for cars
that
don't have separate floating subframes connected by a unibody) a pair of
welded
underbody stiffening ribs "disguised" as subframe connectors.

I don't want to go there. NO CHASSIS MODIFICATIONS is the cardinal rule in
SM.
The factory gave you a chassis, and you make do with it.

Now as far as elongated bolt holes go, a bad design is a bad design, and
it's
not up to rules makers to compensate for someone's bad design. I can think
of a
way right off the top of my head to make bolt-in SFCs not elongate their
bolt
holes - and probably work better too. I'll even give the F-body crowd a hint
-
it's in "Engineer to Win"

> By the way, for anyone that's looked closely at the rules, it allows
> corporate engine swaps. So, you can put a LS1 in your third-gen.

Yup. We're super-restrictive on the chassis side, but wide open on the
engine
side. Go nuts! Have fun!

And if you're thinking "but the chassis is what really counts" well, then
you've
uncovered our dirty little secret.

> I don't know at first how many different classes there will be; I think
> that the original proposal had everyone running heads up.

As it stands right now, SM is heads up. I wanted 2 classes "SM1" and "SM2"
but
Howard wants to get the most bang for his buck as quickly as possible.

SM is going to work a lot more like drag racing class rules than traditional
Solo rules. Drag racing rules tend to be iterative, wheres Solo rules tend
to be
"define everything up front, and never change them".

IF SM gets the participation numbers (that's ULTRA important) and if there
are
well-defined performance fault lines, then SM will be split up. As it sits
though, this class is so much like ESP on steroids, or like CP with street
chassis, that I think we'll be able to stay heads up. Or not.

We'll see - and that's the point.

DG




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