Zenoah G320PUM?

[Chris Kurtz]

How are the Zenoah G320PUM engines doing in modified form?
How do they compare to the 28 to 30cc modified engines?
Any issues with them or things to watch out for?

 

[rhomodel]

Check you post on Jim's..

 

[Bubba Hass]

Chris I am running plenty of 320 and 350 Zens fully modified with billet crank cases to standard cases . Plenty of power 320 on the timings and tighten up the Sqish .
They also live bigger carbies especailly the ATR BB carbs .
Also the Walbro K15 100 cc carby has orsome throttle response .
Pipes u need a good pipe and bigger stingers to work with the engines small hot pipes with 11 mm or 12.5 stinger are too small I have found and the engine suffer from heat in that form with pipe combo and u will cook the rings on ex side .

last point they are heavier 2 kg with carb and pipe header , just be aware of that but yes pull bigger props also .
happy boating cheers