TT .91 inverted or side mount?
 

I'm building a CG Chipmunk and I've got a .91 TT for power. I'm wondering if this engine prefers to be inverted or on its side...or does it really care? Also, is the choke a requirement or can I leave it off?

Thanks!

RE: TT .91 inverted or side mount?
 

I have one inverted in a CUB and one horizontal in a Spacewalker. Both run the same and neither has ever been a problem.

Yes, you do need the choke plate as it contains the venturi part of the carburetor.

Dan

RE: TT .91 inverted or side mount?
 

The only issue I have ever had with inverted engines be it 2C or 4C is the first start, the fuel will not feed properly as I always flip start. For me I find that the engine has to be tuned patiently and after that there are no real problems at all. For the Chipmunk go for inverted, the cowl will allow the engine to be partially hidden. I just got my WM one up and it has an ST G90 ... over powered, I might look for a 90 sized 4C.

RE: TT .91 inverted or side mount?
 

TT like to be inverted or on side same same for him! ;)