MVVS .26 Combat engine
 

Hi guys
I have na older MVVS .26 combat engine with the gold head, but not the gold prop drive, additionally this has the older style carb on it with the cross on the low speed needle. I am using the 3243 mini pipe with the engine
What i would like to know is if this engine is any good for high speed applications, i was looking at using an 8x7 prop on it and installing it onto a Shrike 10 which currently has a OS32F which is proving to be tempermental.

RE: MVVS .26 Combat engine
 

Homer,


The .26 has the extended gold head, for added cooling capacity, since the speed this engine is flown in combat events, with a relatively low pitch prop, requires this added cooling area to maintain the proper working temperature.

Using this engine in a high-speed event, may require that you limit the air-flow to the head, so it will not be over-cooled.

The engine you have is a 'transitional' version, from about 2.5 years ago, in which some upgrades were incorporated, but others still were not.

The new #3216 carburettor will drop right in, to replace the older model.
I believe Paul of JustEngines can supply it.

It will give you a better mid-range and transition and a generally more consistent behaviour.


Also, the #3243 tuned exhaust is for 13,000-17,000 RPM.
If the speed event, in which you want to participate may require higher RPM, you may need to alter/replace it so the range will be extended at the top.

RE: MVVS .26 Combat engine
 

I am looking at the 8x7, which i hope will turn around 16500, towards the top end of the pipe