Torque?

[FrizzleFried]

Does a 4-stroke provide MORE or LESS torque ... on average ... per CC vs a 2-stroke?

From my recollection of regular ole motorcycles of yesteryear ... of which I assume these motors are closer to resembling than the new 4-strokes running on dirt bikes today... 4-stroke provide LESS torque per CC than 2-strokes. Does that still stand today?

I am trying to determine if I want to stick a 4-stroke or 2-stroke on that long frame I have. It's not exactly the beefiest frame... so I'm guessing I should stick to a lower torque motor selection... I was thinking it may be a good cruiser option for either a 49cc or 79cc 4-stroke motor vs a 2-stroke. It doesn't have to go fast... if it cruised 25-28 mph I'd be plenty happy...

 

[JuraTyKokotko]

Well, i am preatt sure that 4s does have more torque. I had 80cc 2 Stroke and in comparison Huasheng 142f have a lot more torque. I cruise on huasheng 35mph.

 

[FrizzleFried]

But did you have an 80cc 2-stroke... or was it a 66cc 2-stroke?

 

[JuraTyKokotko]

But did you have an 80cc 2-stroke... or was it a 66cc 2-stroke?

Advertized as 80cc in reality 66cc lol

 

[FrizzleFried]

I'd be curious as to how that 79cc 4-stroke (i assume that is what it is that you referred to?) matches up against an 85cc Phantom?

 

[JuraTyKokotko]

I'd be curious as to how that 79cc 4-stroke (i assume that is what it is that you referred to?) matches up against an 85cc Phantom?

Actually huasheng is 49cc. Dont know about the Phantom. But i would bet 4s still have more torque.

 

[FrizzleFried]

49cc and you hit 35mph... nice. How about for certified "Phatties" like myself... 285 6'4"? Would a 49cc cut it or should i look at 79cc?

 

[JuraTyKokotko]

49cc and you hit 35mph... nice. How about for certified "Phatties" like myself... 285 6'4"? Would a 49cc cut it or should i look at 79cc?

Well, its true that i am a light rider.
But still u should be able to cruise atleast 27 in my opinion.

 

[FrizzleFried]

Also... correct me if I am wrong... but 4-strokes are more designed to be ridden "wide open" vs 2-strokes... right? I mean, twist max and go... right?

 

[JuraTyKokotko]

Also... correct me if I am wrong... but 4-strokes are more designed to be ridden "wide open" vs 2-strokes... right? I mean, twist max and go... right?

Well, yes. But if you have it badly tuned and you ride all the time wide open, you could literally melt connecting rod.