ORIGINAL: Diesel Fan
ORIGINAL: earlwb
They would have never put a diesel head on a Quickie .40 engine. It might work, but the nature of the engine was all out racing performance. it would not be useable as a sport engine.
Why wouldn't a quick racing engine work with a diesel head?
I have read about high timed MVVS engines that have diesel heads on them and they work fine in control line stunt models.
Is it assumed that this engine is to be used in an RC model?
The Fox .40 Quickie engine is a all out racing engine. The way they timed the engine and setup the carb means it is eitherWOT or off, no in between on the throttle. So yes you could use it as a diesel, but it is not a sport engine. even putting on a smaller bore carb won't help as the port timing is still fairly hot. So if you were using the Fox Q engine for racing then go for it. But the hot port timing may cause problems with allowing too much fuel to flow into the combustion chamber. Since they set it up for methanol then the ports might be too large to run it good as a diesel. The carb's inside bore is as large as they could go with it too. Some guys went with a smaller bore carb as the engine had trouble drawing fuel in the turns. But I know of no one who has tried it as a diesel so far, so it is all theory.
I have a Parra 2.5cc AAC diesel engine and it does run as good as my glow 2.5cc engines, maybe better than some too. So yeah one can get a diesel to run as fast if not faster than some other glow engines. I have a MVVS 2.5cc diesel as well, but I havent' run it yet.