Gas vs electric engine mount template?
 

Hello I am assembling a Hangar 9 Beaver and I want to install a radial engine on it. I am using the provided templates to find the engine center. With the kit there come two templates one for an evolution 33gx engine (gas) and other for power160 (electric) the fact is I have found the center of the 4 mounting points for each template and the center is not the same on both engines, they are the same heigth but one is a little to the left than the other. Why is that? What is the center I should use to center my engine template?
Regards.

It likely has to do with the length of the engine from the firewall?

The idea is to have the the prop hub in the center of the cowling even though there is right thrust and down thrust on the engine.