Good Morning all. I enjoyed reading all of the posts. I do have a couple of questions.
1. Do you guys have a procedure that you follow to convert these glow engines to gas? I have two .90 Rossi engines that I am thinking of converting. I will post pictures of them as soon as I can find them in all of my stuff. But, when I bought them, I was told by the seller that they were ducted fan engines. They look vastly different than the 'normal' Rossi .90 engines. They are much larger than the .81 Rossi that I have.
2. Along those same lines, how much of an RPM drop comes with the conversion? The reason I ask is because there is an article for an F-4 fun scale phantom that has a diesel engine (OS .77 with a Davis Diesel head) in it and somehow achieves enough RPM to power it!!!
So, what are your thoughts??? Thanks in advance for the info.

Cheers...