depending on what 4.6 gen block you have the new gens will be a clean bore hole and usually the first gen 4.6 have a square port hole. same hpi engine its not just the 4.6 either 3.5 4.1 also are like this.
I'm not sure why your video popped up, but i have to say I've modified RC engines for years. I have played with the force engines way before that. These are cheap enough to just mod crazy. If you don't have a degree wheel to check timing and change it, you should. I have a lot of notes of timing for different engines. If you like, i can send it all to you. I don't do it anymore. I just got burned out by doing it for so long. Cheaper the engines, the more work is really necessary, even modify the cast blocks. Have a good time with this i did.
Yes I would love any info and I am having tons of fun. If you could join my Facebook group same name same logo my name is Bret pierce you can send the info there. Thanks for stopping by and welcome to my channel 😀
It's revs to 3800rpm and has 2.7 hp force make the 28 for hpi with the same bhp you said and rpms that engine you have is 99pounds and 99pence the hpi engine made by force is 15a pounds something rebranding rip off great video
Because we get ripped off the manufacturers of the rc car's trucks etc get them to put there name on the engine even though it's a force I don't mean all rc nitro engines
These engines used to come in everything BITD. It's decent, but nothing to write home about. Definitely not believing that 2.9hp figure, unless they significantly changed them since then. IIRC, the .21 ran a lot better than the .28
