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Old 12-19-2021, 10:57 PM
  #565  
jimkron
 
Join Date: Mar 2008
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Originally Posted by Jaketab
Hello - questions please.
Getting set to run in my FG 90R. Locally, Klotz Original Techniplate (100% Synthetic.) is not available.
The Klotz R-50 (100% Synthetic) is available, but I'm not certain this is an acceptable break in oil. Not certain either if a Syn/Caster blend is acceptable for this engine???
Would someone care to recommend an acceptable oil for the Saito so as not to void the warranty???
The recommended oil for the Moki and Valach is the Amsoil Dominator with regard to the blow by properties - which is what I use in these engines.

Also - Please recommend a good 3 blade prop to keep the motor at 6000 rpm on the ground??? (23x10 or 23x12) ???
The plane, most likely, will be an A6M5 Zero.

Regards - J Tab
We fly the TopRc Zero (93") with the Saito FG 84 and a Biella 22 x 12 3-bladed prop. 6100 on the ground BUT it can unload in the sky to 7000 rpm. No reason to rev that high. Nothing good happens after 6600 rpm in the air.
Temps are in the 230F degrees at full speed and 215F at cruising. As you know, these engines are expensive. Don't push them if you don't have to. I would shoot for 6600 in the air and keep the temps under 235 on a hot day.
I would be curious how the 23" prop perform in terms of revs and temps.

jim