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STU....Long ramblings

To: autox@autox.team.net
Subject: STU....Long ramblings
From: "Thompson, Adrian (A.L.)" <athomps9@visteon.com>
Date: Thu, 16 Sep 1999 12:39:06 -0400
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I've just looked at both the ST rules (including STR and STU) posted on
http://www.moutons.org/sccasolo/street_touring_rules.
<http://www.moutons.org/sccasolo/street_touring_rules> 
and the STU proposal posted by Dennis Grant on
http://www.wincom.net/trog/stu/rules.html.
<http://www.wincom.net/trog/stu/rules.html>   With Dennis's version they
have got rid of the 'sports car based' exclusion.  The line just reads 'All
four-plus passenger, front engine, production-based sedans/coupes'.  By my
reading that opens it up to the MGB GT, Triumph GT6, Porsche 924/944/968 etc
etc. 
 
Also, Dennis's rules have a capacity limit of 4.0 Liters for pushrod engines
so the Rover/Buick V8 is back in.  Another thing for the those sick and
twisted people (I like you all!)wanting to build super Beetles think about
this.  The Porsche 914/916 was sold in the rest of the world as a VW NOT as
a Porsche.  Therefore the 916 that used the six cyl 911 engine is
technically a VW engine as well.  QED bung a 911 motor in a Beetle and away
you go.
 
Also, people keep coming back and saying that you can't put down the power
with DOT tires.  I have to disagree.  How much power do you think Ren
Marinus has in his RX7 that just won Nationals (again) well over 300bhp.  Or
what about Daniel Popp in his 72 Vette, forget the power there think Torque
450lb'ft minimum.  And before you start saying 'but BSP is slower than ASP'
Look at the times.  Daniel's total time 113.490, Ren's total time113.596.
Hhhmmmm, makes you think doesn't it.
 
One more extreme point.  The proposed rules still just say any suspension
that fit's the stock mounting points.  Well I've pointed out before that you
can fit an IRS to a Mustang but those Beetle nut's have got me thinking.
>From memory, the whole Bug front suspension hold on with f bolts, hence it's
easy to bolt on to the front of a F Vee.  Well just build a subframe for a
full double wishbone that picks up on those same four points.
 
So, now we have a VW bug with 911 engine (turbo if you like) trick front
suspension, bolt on carbon kevlar panels that weigh nothing.  I think you
can even get rid of the heater if you like. I know the early bug's sold in
Europe (1950's) even the heater was optional, so more weight gone.  I can't
wait for someone to beat this creation :)
 
My point is, I like the idea of an STU class but the rules have way way too
many holes in them.  My suggestions:
 
1.  Any engine in the same family, from the same manufacture, with the same
number of cylinders and capacity within 20% of the original.  This let's in
VTEC Civics but keeps out 911 engined Beetles.
 
2.  Suspension, Components free but must use original pick ups and be of
same type as fitted to a vehicle based on same floor pan.  This let's true
bolt ins (GT6 into Vitesse) or Fabricated control arms (Sure they're out
there for the Civic's etc) but prevents double wishbone Beetles etc.
 
3.  Keep the front engine rule and specify a minimum weight per cc of engine
volume and drop the four seat requirement.  This would allow in Miata's and
CRX's but so what.  There's not a lot between an SP CRX or Civic so no
problems and with the exception of Guy Ankeny in 97 I haven't seen too many
successful SP Miata's.  The minimum weight would keep out the super light
Elan's etc.
 
I'm sure there's more but my lunch break is only so long.
 
Adrian Thomspon
 

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