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From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [FlyRotary] Re: Blowoff valves
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Date: Wed, 30 Apr 2003 23:53:25 -0400
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Posted for "Marc Wiese" <cardmarc@midsouth.rr.com>:


>> His suggestion was to
> lose
> the weight of the wastegate, weld up the opening and use a pop-off
valve,
> then
> control the boost below the pop-off pressure using throttle. This is
what
> Greg
> Richter did, and it worked for him, so I think I'll go that way. DO
you
> have
> any pressing reasons why this wouldnt work?

Single point failure mode leading to immediate engine failure. A blow
off valve in a car is for instanteous relief when shifting and off the
gas, but the wastegate is also working with it, just slower. A blow off
valve is an emergency device, no more no less.
[Marc Wiese]