Bobby,

             Do you know your prop size??  Neil.

 

From: Bobby J. Hughes

Sent: Wednesday, December 11, 2013 11:23 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: 2 cycle premix

 

Neil

 

My EGT is usually around 1660 at 38", 7100 rpm, 12.5 F/A.  I have seen one rotor go to 1700 with an injector imbalance too rich. One other time with a fouled plug. I think fuel was burning in the exhaust manifold.

 

.80 oz per gallon.

 

Bobby Hughes

Renesis 

 

Sent from my iPad

On Dec 10, 2013, at 6:10 PM, "Neil Unger" <neil.unger@bigpond.com> wrote:

All,

          finally flying again, but my prop is too big. It is a 70” dia by 90 inch pitch.  Max revs on takeoff is about 6800 and the EGT is pushing over the 1850 degrees.  Obviously the prop is too big as revs are restricted and the motor is working too hard hence the EGT.  What size props are you people running??  2 rotor renesis.  Neil.

 

From: David Leonard

Sent: Thursday, August 08, 2013 7:12 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: 2 cycle premix

 

I use the same mix, but at closer to 1 oz/gal.  Why?  That is what Tracy does.  Dont think it is very critical over the short term.  I have gone without oil for a tank or two when I didn't plan well.  I have also put multi-weight aviation engine oil in (at .5 oz/gal) on one occasion when I forgot to bring along any 2-stroke oil at all.

 

Dave Leonard

On Fri, Jul 26, 2013 at 11:39 AM, Bill Bradburry <bbradburry@bellsouth.net> wrote:

I use the same mix as Dennis but at the rate of 3/4 oz/gal in non-ethanol auto gas.  My engine is a Renesis with 70 flight hours.

 

Bill B

 

---

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Clouduster
Sent: Friday, July 26, 2013 9:17 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: 2 cycle premix

 

I use a 50 - 50 mix of MM and WalMart 2 stroke @ 0.50 oz/ gal. Mixed in auto gas.  My engine is a Renesis with 500 +hrs.

 

Dennis H.

Sent from my iPad

On Jul 25, 2013, at 16:29, ARGOLDMAN@aol.com wrote:

Greetings all,

 

For those of you who are actually flying and have some time on your rotaries and are using Pre-mix 2 cycle oil:

 

1)  what oil are you using

2)   why that brand

3)   what ratios are you using

4    where is the best place to get it

 

Thanks

 

Rich

--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net