Hoi, Espeefan,
You got that right. It was a two stoke nitro engine 6,5 cc.
It was not only the better performance, but also the hot oil from the engine burned into
the paint. The only thing thats missing now is diesel smoke.
The sound off a 2 stroke engine is not a good sound for a truck.
I have now a " sound generator" from servonaut that is a real truck sound. It's great.
Another reason for putting a electric engine in the truck is that I now can drive in the house. No more tools for getting the engine startted only a battery.