Engine type/geometry

[radiatedmocha27]

My first real question is despite the tweaks I have done to it still not sure if these engines are any good.

Most importantly my second question is what type of geometry is this engine and what type of parts am I going to be looking at on terms of compatibility for high horsepower output claims that it's rated for six horsepower maximum at 6,000 RPM, realistically I would like to run that up into the double digits compared to a phantom 85 how much horsepower do those things make and would it be difficult to exceed that number?

 

[ImpulseRocket]

49mm bore and 40.2mm stroke

They also call it a "110cc" engine, but a Chinese "110" will have a 52mm bore and 40mm stroke, making it actually 85cc in the rest of the world. This is closer to a "100" in size, aka 50mm bore.

 

[radiatedmocha27]

49mm bore and 40.2mm stroke

So I guess technically 75 cc's but there's about an additional inch of stroke if I were to replace the connecting rod that I could utilize and simultaneously bump up compression and displacement

 

[radiatedmocha27]

They also call it a "110cc" engine, but a Chinese "110" will have a 52mm bore and 40mm stroke, making it actually 85cc in the rest of the world. This is closer to a "100" in size, aka 50mm bore.

Actually I'd say about half an inch which would put it at 99 cc really which would explain the 60 compression ratio because it's probably got a stock bottom end like you said

 

[radiatedmocha27]

Actually I'd say about half an inch which would put it at 99 cc really which would explain the 60 compression ratio because it's probably got a stock bottom end like you said

Any clue what types of crankshafts and connecting rods would be compatible?

 

[Chainlube]

49mm bore and 40.2mm stroke

It can't be a 49mm bore if the stud spacing is 45mm, think about it. If it's 49mm it's getting pretty close to those studs.

 

[radiatedmocha27]

It can't be a 49mm bore if the stud spacing is 45mm, think about it. If it's 49mm it's getting pretty close to those studs.

I had asked a seller who was selling the exact same motor that I have as Sam got 100 cc and he said that that was bolt spacing and the bolt spacing is a new concept because I never really needed to use it the determine what type of engine I had

 

[Chainlube]

I had asked a seller who was selling the exact same motor that I have as Sam got 100 cc and he said that that was bolt spacing and the bolt spacing is a new concept because I never really needed to use it the determine what type of engine I had

I never use stud spacing either. I've made an assumption once and had to cancel an order, now I measure everything to be sure. Nothing in these 2t is what they say, like when is 66cc 80cc.

 

[ImpulseRocket]

It can't be a 49mm bore if the stud spacing is 45mm, think about it. If it's 49mm it's getting pretty close to those studs.

Nah, it can work. The spacing is 45mm stud to stud iin a square pattern, not across the bore. The Phantom and Avenger are 52mm bores with 50mm squared stud spacing.

 

[Chainlube]

Nah, it can work. The spacing is 45mm stud to stud iin a square pattern, not across the bore. The Phantom and Avenger are 52mm bores with 50mm squared stud spacing.

What I'm saying is with that stud spacing the bore is getting into the danger zone with the studs.

 

[radiatedmocha27]

What I'm saying is with that stud spacing the bore is getting into the danger zone with the studs.

When I get home in about an hour I will pop the top of this thing off and I'll take a picture for you guys to look at I don't have a micrometer but I do got a tape measure