I am very interested in building a gp tracer pattern aircraft, looking at the manual the engine is mounted inverted carb down. I would like to know if there is any way to mount the engine at least at a 45 degree angle, I have seen the venus with the engine mounted this way and would prefer to stay away from the upside down mount, I am not concerned with the cowl being trimmed different. THanks RIckey

You can mount the engine any way you wish. The main thing is to make sure the thrust line stays the same as designed when you position of the engine. You would just have to position everything and see how it fits before you drill the holes for the bolts.

My Saito 72 is mounted inverted. I used a gp 40-70 ("medium") mount. I dont see why you couldn't install it in an angle but why?
Connecting and disconnecting the glow plug is tricky but you can avoid the hassle by installing a remote glow plug connector
Luis

2 strokes dont like being mounted inverted

Attached is picture of a 46fx mounted on a Tracer at approximately 135 degrees. Not exactly, 135.. just nearly. You have to lay it out carefully to get everything lined up. You have to make a new hatch cover as well. Not difficult and much nicer than stock. You see it there with a Jett muffler. Currently is has a pipe header and a Macs quiet pipe. I opened up the belly pan to accomodate the pipe. It fits well considering the small amount of space available.

Jim,

Very nice installation!

Thanks