Re: turbos

["Steven Stegmann" <steve.stegmann@xxxxxxxxxxxxx>]

Mercedes Benz back in the 1930's had a belt driven supercharger on their
sports model.  The clutch was engaged by hammering the pedal against the
floor.  Supposed to make a pretty wicked scream when running.  I think it
was a centrifugal as opposed to something like a roots.  With some spur
gears to step up the speed you would get an interesting sound.

Steve
----- Original Message -----
From: "mark stegmann" <truckdriver_1977@domain.elided>
To: "Mac @ TRIAD" <mac@domain.elided>; "Greg Hermann"
<bearbvd@domain.elided>; "ROCKY LEAR" <rockylear@domain.elided>;
<ihc-digest@domain.elided>
Sent: Sunday, June 22, 2003 4:22 PM
Subject: RE: turbos


> > on this same subject, the Crismon book quotes IH
> > literature referring to the
> > 4-152T as "with 115 horsepower on demand" (Crismon,
> > P. 357, bottom left,
> > Champagne Scout caption), and "turbocharger which
> > kicked in and then
> > produced exra horsepower when required, with a
> > noticeable drop in fuel
> > mileage" (Crismon, page 379, 4th paragraph).  what
> > exactly does that mean?
> > i thought turbochargers were fulltime, not "on
> > demand".  what gives?  is
> > this a misprint or was the turbo on the 4-152T a
> > part-time operation?  can
> > someone explain this to me, please?
> >
>
> Mac,
> This is a guess, but I'll bet they mean that the
> engine had 115 hp before the turbo was added. There is
> no on/off switch for a turbo, and I doubt there's ever
> been one on a belt driven supercharger, though with an
> electric clutch(similar to the one on an AC
> compressor) you could probably make one. But if you
> think about it, you could maybe adapt that to an
> exhaust driven turbo with some fancy engineering.
>
> Mark
>
>
>
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