Tracy, Thanks, I will forward your note to the Vans Air Force list. I
thought I would like to install the Renesis since I have procrastinated long
enough to have left the option open.
Regards,
Greg
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Tracy Crook
Sent: Tuesday, February 03, 2004
4:22 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Renesis
Engine For Aircraft
Sounds like the NIH (not invented here) factor to
me. I'm betting (with money) they are wrong about the
Renesis. I have one on the way scheduled for delivery next month.
With any luck it will be installed on the nose of my RV-4 before the next Sun
100 race at Sun 'n Fun.
The question I have for Powersport is: Why did they
stiff their customers who paid 100% for their FWF engine packages and did not
get their engine controllers or exhaust systems. I personally talked to 3
of them who had this happen and they said there were others who had the same
experience. Did they make delivery or not? If not, I
consider them out of business despite their claims to the contrary.
Tracy Crook, (and you can quote me on this)
----- Original Message -----
Sent: Tuesday, February
03, 2004 6:32 AM
To: Rotary motors in
aircraft
Subject: [FlyRotary]
Renesis Engine For Aircraft
All, Some food for
thought. Powersport has started replying to e-mail on another list, and
was asked about the Renesis engine. This is what Tim had to say. I
had thought that the Renesis would have been a great aircraft engine, but would
have to lean towards more educated opinion. The questions to powersport
and their replies are copied in full below.
I would appreciate any
feedback on what is said.
Thanks, Greg
Fuess
Thanks for the info.
Some questions for you:
1. What is
the status of Powersport? Is it currently shipping FWF
packages for
RVs? Which model RVs?
Currently we
have completely developed FWF packages for RV 6-7-8-9 (9 at your own
"not
recommended by Vans" discretion.)
2. Is the
Renesis engine interchangeable with the old 13B? Obviously
different
exhaust, but are the engine mounts, etc. the same?
Simply put,
the Renesis is not suited for installation in aircraft. There are many
reasons for
this.
3. Is the
Renesis engine better than the old 13B for aviation use? I
understand
it has better economy and sealing due to the new port
arrangement.
Is there anything else we should consider?
No, the
Renesis is far worse for aviation use. It does not have better economy,
especially
at the RPM range used in an aircraft. It is lower HP! It still needs a suitable
aircraft ECU
added. It develops its HP at a higher RPM with will reduce its life cycle.
The changes
made were for emissions and low end torque, which are not important
factors in
aircraft. Mazda still uses P-Port system for their top racing application.
4. Is Powersport
planning on switching to a Renesis-based FWF?
No, see
above.
I am not
saying the Renesis is not a good engine, it is a great engine... for a car.
The HP
ratings are way overstated. Those who have run them on dynos have reported
outputs
around 180HP.
Thanks,
Tim