Mailing List flyrotary@lancaironline.net Message #43877
From: George Lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: New rotary engine-mazda points on design
Date: Sat, 6 Sep 2008 15:39:45 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes of course Andrew,
As a matter of fact the chap that supplied most of those Renesis engines is local to me, but I didn't buy one as I was looking at needing Peripheral ported single rotor engine. However I noticed the Renesis engines without the fancy inlet manifold was similar in power to the RX7 - therefore no real advantage. I did however buy a Renesis rotor and cut 3mm apex seals grooves for the higher compression and found out later the higher compression gave only higher torque, but no real advantage in hp. No real advantage in that either but they were half the cost.
The larger eccentric ( how large ?) will improve torque and the bigger volume will improve HP- so that's good. The rest is just suck and see.
George (down under)

George
Lots of us are playing with the pre-production and test Renesis  engines in our aircraft now without problems as thats what was  available when trying to acquire one, unless of course you managed to  side swipe a RX-8 on the highway and buy the wreck from the insurance  company. I can't wait to see a car on the road with one of these 16X  engines in it. (joking of course)

Andrew Martin
ALW speed 4000, Renesis. RWS everything.
Western Australia.






On 06/09/2008, at 5:48 AM, George Lendich wrote:

Ed,
I was wondering about all that and hope any gains aren't negated by  the removal of some highly tuned and complicated intake manifold,  that won't fit into a cowl- like the Renesis manifold.

There is also the concern of how good the surface treatment of the aluminium side housing are going to be. I guess only time will tell.  I hate the first release of anything like this, it invariably has problems.

Then there's the complexity of injection and the very high pressure  of direct injection, as well as the associated hardware and much  needed software to make it all work.

Those sorts of things tend to temper my enthusiasm or am I just  jaded through old age.
George (down under)
Thanks, Marc.

What can I say but ...Drool.....

Can't wait!!  I was contemplating a point and time to swap out my  old 91
turbo block for a Renesis - and now I believe the ideal time is  when they
come out with the 16X.  Can you imagine approx 40 more HP and less weight
than the current 13B - Lycomings wouldn't even be in the game {:>)!!

Like I said ...Drool....

Ed Anderson

Rv-6A N494BW Rotary Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html

-----Original Message-----
From: Rotary motors in aircraft  [mailto:flyrotary@lancaironline.net] On
Behalf Of Marc Wiese
Sent: Thursday, September 04, 2008 9:22 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] New rotary engine-mazda points on design

Fellow Rotary Enthusiast:

Some nice info on the new Mazda 16x RE at the following:



http://www.mazda.com/mazdaspirit/rotary/16x/


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