As a none kart racer but a avid 2 stroke fan I'm amazed at the reliability of 100cc A/C engines and the revs they achieved. Could some one give me a idea of what the equivalent jet size would be if running a conventional carb to size ratio. Also any idea's on what the crank balance ratio would be, is vibration a problem?
We have a team that runs road course racing. Long tracks. I keep hearing people say you will go faster running a 16- 80 gear or 5 to 1 ratio instead or running a 13 -65 gear or 5 to 1ratio. I believe with the 16-80 gear you are moving more chain but I have been told that running both bigger gear makes more torque with the same ratio. I believe torque from gears that are the same ratio is the same as long as you are only using two gears to get your ratio. Am I wrong?
Have you ever seen a variable length pipe? One that nests, and can be shortened by ear as rpm goes up? I'd like to build a 2 stroke motorized bike that can maintain minimum highway speeds for hours. Would water cooling be necessary to run high rpms for hours on end?
Yes, I'm familiar with adjustable-length pipes. We've used them for years on road-race karts. They are typically controlled by a hand-lever activated cable. As for running at highway speeds for hours, consistent cooling will be required, but can be accomplished with air cooling to avoid all the extra complexity of water cooling. It will be important, however, for the rider to be able to monitor the engine temperature and adjust the carb mixture to avoid overheating.
informative video, thanks sir.
Great video, knowledge is unreal Thanks!! Would enjoy more detailed videos on pipes and everything else 2 stroke!
Well done my friend.
As a none kart racer but a avid 2 stroke fan I'm amazed at the reliability of 100cc A/C engines and the revs they achieved.
Could some one give me a idea of what the equivalent jet size would be if running a conventional carb to size ratio. Also any idea's on what the crank balance ratio would be, is vibration a problem?
Awesome vid, thanks!
Really helpful 👍
We have a team that runs road course racing. Long tracks. I keep hearing people say you will go faster running a 16- 80 gear or 5 to 1 ratio instead or running a 13 -65 gear or 5 to 1ratio. I believe with the 16-80 gear you are moving more chain but I have been told that running both bigger gear makes more torque with the same ratio. I believe torque from gears that are the same ratio is the same as long as you are only using two gears to get your ratio. Am I wrong?
Have you ever seen a variable length pipe? One that nests, and can be shortened by ear as rpm goes up? I'd like to build a 2 stroke motorized bike that can maintain minimum highway speeds for hours. Would water cooling be necessary to run high rpms for hours on end?
Yes, I'm familiar with adjustable-length pipes. We've used them for years on road-race karts. They are typically controlled by a hand-lever activated cable.
As for running at highway speeds for hours, consistent cooling will be required, but can be accomplished with air cooling to avoid all the extra complexity of water cooling. It will be important, however, for the rider to be able to monitor the engine temperature and adjust the carb mixture to avoid overheating.
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