Mailing List flyrotary@lancaironline.net Message #3142
From: Tracy Crook <lors01@msn.com>
Subject: Re: [FlyRotary] Re: turbo performance?
Date: Fri, 19 Sep 2003 23:36:34 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
 

>Then the turbo has to go, simple as that  :-) 
aw come on, Rusty, you can find a little spot for an intercooler somewhere. Maybe hang it under the plane on adjustable brackets.
 
It's my understanding that piston engines can generally tolerate far more detonation than rotary  
engines.   Because I don't want to break an apex seal just past the departure end of the runway.   
I guess someone needs to test the limits, otherwise we'll never know for sure where they are.
Where, exactly, does that old PSI demon in the skies live?
Who's gonna be the lucky monkey to find him?
 
John Slade
 
I don't know where the limit is either but we might have something that helps.  If you've checked my website lately you may have noticed the new apex seals we sell.   There is a little disclaimer there now that limits use to automotive applications but that is going to be lifted in about a month if we continue to get good feedback from our beta testers.  One of them runs fairly high boost (13 PSI) and on several occasions detonated the engine pretty bad when he accidentally installed NA injectors in the secondaries.  No damage so far.
 
Another user is planning an assault on the stock body rotary 1/4 mile drag record.  He is running 30 PSI (!!)  boost.  Hasn't made a run with the new seals yet but he says he runs through Hurley seals "like potato chips".
 
There's a Q & A page on the website about these seals if you're curious.
 
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