<VV> Turbo and Dual exhausts

[Norman C. Witte]

>From my limited understanding of Corvair turbos, wouldn't it be an F.B.I.
(Fundamentally Bad Idea) to split the stock exhaust aft of the turbo?  I
always understood that the Corvair turbos used backpressure to limit boost.
A freer flowing exhaust *would* flow better, but the consequence would be
overboosting the motor, right?  So without a waste gate or some other such
thing, or maybe some pretty serious internal engine mods, maybe including
lowering the compression ratio, you wouldn't want to do this, is my guess,
unless you wanted to grenade the motor.

On the other hand, Frank's idea of twin turbos is way cool.

Hank, I think you should do twin turbos ULTRA (TM) style.  Just bolt them
puppies on.  I am sure flexible exhaust pipe would work just fine to plumb
the second turbo. For extra cooling, just get some extra long engine lid
bolts and stack about fifty washers on each bolt between the hinge and the
hood.  Whooooeeeeeeeeeee!!!!

I'm sure Matt can find some good used, not worn out, flat washers.

Norm Witte

> -----Original Message-----
> From: virtualvairs-admin@corvair.org
> [mailto:virtualvairs-admin@corvair.org]On Behalf Of FrankCB@aol.com
> Sent: Monday, March 01, 2004 5:03 PM
> To: UltraMonzaWest@aol.com; virtualvairs@corvair.org
> Subject: Re: <VV> Turbo and Dual exhausts
>
>
> Jim,
>        I agree with you that it's probably a NON-turbo
> engine.  It would be
> lots of work to take the single exhaust from a single turbo
> and split it into 2
> exhaust pipes, 2 mufflers and 2 tailpipes.  On the other
> hand, if he has TWO
> turbos, one on each exhaust manifold, then 2 of everything
> downstream makes
> lots of sense.  I'm sure somebody on this list (or on
> Fastvairs) has already
> done this.
>        Frank "envious" Burkhard
>
>
> In a message dated 2/28/04 1:04:51 PM Eastern Standard Time,
> UltraMonzaWest@aol.com writes:
>
> > Well, almost anything could be done with enough time,
> money, and ingenuity,
> >
> > but dual exhausts on an otherwise stock turbo engine would
> be a REAL
> > stretch.  My suspicion is that he had a Spyder body with a
> non-turbo engine
> > with dual exhausts.  Perhaps a 140, but it could have been
> any other HP
> > engine -- even a turbo converted to natural aspiration -- with dual
> > exhausts added.
> >
> > Jim Simpson
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