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Date: Wed, 23 Mar 2005 20:08:25 -0800 (PST)
Subject: Re: [FlyRotary] Re: New to the list, and some questions.
From: "John Courte" <stjohn@openbar.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Thanks for the info, guys!  And Rusty, Congratulations on the
(flying) RV3!

Now i have to get over to the SoCal RV list and connive somebody
into giving me a ride so that I'm truly convinced.  If I fly in
the RV and don't like it (not likely), I'll go for the pusher,
even though I HATE sanding, but I loved how the Vari-EZE flew.


BTW, since I posted last time, I searched the list archives
again, and found Tracy's post on http://www.car-part.com.  There
is a wrecker in Tampa that has a Renesis for $3k, but that
was the only one I found.


> MessageI agree with you Rusty.  I have hit 6800 rpm with my old 13B and
> believe that if you took a 13B and spent another 600 on lightening and
> balancing the rotating mechanism for say 9000 rpm, you would produce at
> least as much power as the Renesis.  On the other hand my "New" model is
> already 14 years old, so if starting from scratch, I would probably go for
> a junkyard Renesis.  Still waiting for the first RX-8 in this area to get
> rear-ended (no injuries of course).
>
> Going to take a long nap! Yawn
>
> Ed
>
>  Truth be told, I don't think the Renesis will really outrun the 13B in
> our rpm range.  I think Mazda just made a better intake, and turned up
> the rpms.  There are certainly some improvements in the Renesis, but it's
> not light years ahead in performance.   It's absolutely possible to get
> 200 HP from a 13B at less than 7500 rpm, with nothing more than a street
> port, and a decent intake and exhaust.   Tracy was doing it, and I expect
> to be as well.  All that being said, the Renesis is clearly the future of
> the rotary, and there's no downside with the exception of a bit higher
> price at the moment.  I think the Renesis is a slam-dunk choice for folks
> starting out now.
>   Cheers,
>   Rusty (must be Ed's nap time)
>   Mazda 13B rotary powered RV-3 (flying)
>   Kolb Slingshot (Mazda single rotor project)
>   Sonerai-IIL (next project in line)