Rino and Group:

I’m curious about the comments with regards to the cold engine  … are you more concerned about oil or water temp?

Lynn has posted several times that oil temperatures ABOVE 160F rob power from the rotary, so that should mean oil temps below 160F are a good thing.

How low is too low?

On my last flight the oil temp was about 135F in cruise … with synthetic or multi-viscosity oil (15W50 for example), low oil temps should not be problem.

Jeff

 

Rino posted:

How long do the sparkplugs should last on the Renesis engine.

My engine is starting to run rough and I suspect the plugs.

I have to say that it is also running too cold, it goes down to about 160 F (oil and water) when coming in for a landing which is usually 3500 rpm.  I have the NGK iridium plugs, lead RE7C and trail RE9B.

 

I am trying to warm up by blocking the radiators at the moment.  OAT  between 30 and 40 F.

I will have to build shutters to control the engine temp.

 

Last month the engine was too hot, now it is too cold.  I did modify the air ducts and change the oil rad for the original RX7 rad.

 

Rino Lacombe

Renesis powered Glass Goose