Hi Pe
 
Sorry for delay, well what can I say!

engine bolted to test stand  with my manifold and the MVVS canister pipe, ignition unit from model, did not put the  vent pipe on static pressure side of of carb. connected crankcase pipe to carb. same prop same fuel.

Did it run yes and pretty good.

Ok so back in model as is, surprise same problems as before would not run at high RPM.[:@]


I did notice it would pick up when cold but as soon as warmed up it would sag. I wonder if it is just the manifold or do you think the canister is getting too hot. when I bench tested it was very hot in the open I can imagine inside the model in a tunnel opended front and rear it  would still get even hotter.

I am wondering if  to get a standard can exhaust and give that a try ie no header and no canister

What do you think?

I am on the point of sending  it []back to mvvs

Ian