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From: "Barry Gardner" <barrygardner@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-1042664@logan.com>
Subject: Re: [FlyRotary] Re: Turbonetics T04 rotary flies
Date: Wed, 22 Mar 2006 13:23:29 -0600
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Geez, John. I'm assuming that the 46 mm measurement is the diameter of the 
hole that wastegate will port. I think you've been playing with the 89-91 
turbo models which is slightly bigger than the 86-88 turbo that I just went 
out and measured. But my stock turbo wastegate measures just 15 mm across. 
Because A=pi( r^2), the increase in that diameter should be making a huge 
difference: You've got 9X the area vis-a-vis the stock 86-88 5.5 pounds of 
boost turbo.

Granted, that TO4E puts out a lot more boost than the stock turbo, it seems 
inconceivable that a 46 mm  (1.8 whopping inches!)wastegate can't take care 
of that boost. How big is your exhaust piping?

Recheck EVERYTHING. You know that if your TO4 blows up, everyone is going to 
say something stupid like "rotaries just can't be turbocharged."

Have you considered a blow-off valve safety device? As little as $91 plus 
install. 8^))

Barry Gardner
Wheaton, IL

----- Original Message ----- 
From: "John Slade" <sladerj@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, March 22, 2006 12:22 PM
Subject: [FlyRotary] Re: Turbonetics T04 rotary flies


> Barry Gardner wrote:
> >Are you running that 46 mm Tial wastegate that you reported upon in
> November 2005?
> Yes, with a manual adjust (under the cowl) boost controller. I'd expect a 
> different tone and boost drop off when the wastegate opens, but can't 
> detect any change. I double checked the vacuum plumbing. Time to check it 
> again.
> John
>
>
> --
> Homepage:  http://www.flyrotary.com/
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