From: hotrod@dixie.com (The Hotrod List)
Subject: Re: Ken Duttwieller does a F
Date: Tue, 29 Dec 92 19:02:58 GMT
Organization: Dixie Communications Public Access.  The Mouth of the South.
To: hotrod@dixie.com
Reply-To: hotrod@dixie.com
Posted-Date: Tuesday, Dec 29 14:02:39
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        Reply to:   RE>Ken Duttwieller does a FORD
-> motor!  Kind of a shock to us Buick fans :^)

>>"An engine is just an air pump. It doesn't care what name is on the
valve cover."   - Bob Glidden<<

An aside ... I think Bob is a pretty classy guy.  I think it's great that his
son Rusty is now running a car with Dad!  I saw Rusty weld several competitors
to the starting line at the NHRA Mile High Nationals this year ...
unfortunately most out powered Rusty, but a good showing none-the-less!

BTW, the Buick fans remark was a joke. :^) Actually,  I don't care for brand
bashing ... every brand has its strengths and faults, its fans and detractors
... I certainly don't lose any sleep over someone who's favorite marque is not
the same as mine.  Be pretty damn boring if we all had identical tastes! :^)

-> to the challenge and then shows some of the one-off stuff that he
-> fabricated for the project.

>>A one-off what?  Duttweiler made a pulley, or whittled a whole blower
>>out of aluminum?  The info I got from Vortech a couple of years ago
>>showed a curve falling off drastically at about 10psi, and 10psi ain't
>>gonna get you 700hp!

Most of the one-off stuff had to do with the intake manifold and throttle body.
Ken used a Weiand tunnel-ram intake lower half and a fabricated upper plenum. 
Looks like a bread box with the throttle body sticking out of the passenger's
side.  Huge throttle body (75mm).

An MSD-7AL-2 40,000 volt ignition box, small cap distributor and Blaster 2 coil
were used, controlled by an Accel/DFI computer.  He also used MSD 50 lb/hr
injectors and a NOS 92 gph/70 psi electric fuel pump and dry sump oiling
system.

Ken uses light weight Chevy length valves with 2.08 intake and 1.65 exhaust and
a modified Crane blower cam.  He moved the valves relative position in the GT
40 head to unshroud the valves and provide better flow.  He also uses an
experimental Fel Pro Head gasket that has a "captured O ring" design to avoid
having to O ring the block.  The O ring groove is cut into the head instead.

According to the article, the supercharger is providing 17 psi.  Again, it
looks like a Turbo with no exhaust housing.  The caption to the picture reads:

"Vortech's centrifugal supercharger is designed for improved airflow dynamics
over other centrifugal superchargers.  Only the pulley and belt drive betray
the fact that the efficiently designed Vortech blower is a supercharger, not a
turbocharger.  The 200 mph Mustang uses a developmental prototype that replaces
the existing Vortech's straight impeller vanes with turbolike curved vanes on
the impeller for even greater efficiency - it could be in production by late
this year ...."

Amongst all the hype, the description is pretty accurate.  Since this is a
prototype, I'm not surprised that the existing product line does not live up to
these specs.  Pretty neat stuff!

>>----------
>>Posted by: emory!chaos.lrk.ar.us!dave.williams (Dave Williams)

-- Ken Mosher
-- Buick GN:  A *BOOST* of Buick Performance
 





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Posted by: "KEN MOSHER" <emory!imd.sterling.com!Ken_Mosher>
Newsgroups: alt.hotrod,wiz.hotrod