new bike with air induction
- Thread starter lenny9651
- Start date
wheelbender6
Well-Known Member
Nice set up. I've seen ram air systems made with pvc pipe - much less visually appealing.
Looks cool but the problem with a system like that is you need to run your mixture rich. The faster you ride the leaner your mixture gets because of the forced air induction. At high rpm if your mixure leans out your engine will rev faster, giving the illusion of more power but whats really happening is your engine is destoying itself. Too lean of a mixture will cause the engine to overheat and eventually cease up after destoying the piston and cylinder. Looks cool and probably will give you some extra go but possibly at the cost of an engine. I would definitely recommend that you richen your mixture if you plan to run the induction.
Sidewinder Jerry
Well-Known Member
I wondering about a set up like yours on a 4 stroke. Since oil mixture isn't an issue. Some of the 4 stroke carburetors also allow you to adjust the air/gas mixture as well.
maniac57
Old, Fat, and still faster than you
At the speeds these bike are capable of running, the ram-air effect is negligible and no special tuning is required.
Keep in mind guys, ramming air into a PISTON PORT engine is pretty useless anyway since both ports are open at the same time....
too much flow and the charge blows right through.
Good point Maniac. My experience is with much bigger and faster bikes than these. I'll stay quiet from now on and leave the comments to the experts. Lol.
maniac57
Old, Fat, and still faster than you
I did not intend to sound pedantic. It's just that it annoys me seeing people try to get free power with the same old tired gimmicks.
Turbo's, ram air, boost bottles, etc. really get me irritated by wasting new owner/builders money and time.
It's like this people: If there were some magical free horsepower formula, every factory would be using it. It would not be some "new" discovery. (until/unless it actually DOES happen)
If it sounds too good to be true, it probably is.
Turbo's, ram air, boost bottles, etc. really get me irritated by wasting new owner/builders money and time.
It's like this people: If there were some magical free horsepower formula, every factory would be using it. It would not be some "new" discovery. (until/unless it actually DOES happen)
If it sounds too good to be true, it probably is.
maniac57
Old, Fat, and still faster than you
http://www.animatedengines.com/twostroke.html
looks like you are correct. But I can look through the cylinder and see through the ports while working the engine.
Maniac the link you posted shows an engine like a pocket rocket engine with the reed valve on the bottom of the crankcase. The Grubee style engine has the intake port in the rear of the cylinder as in this animation which clearly shows the two ports open at the same time.
http://science.howstuffworks.com/transport/engines-equipment/two-stroke2.htm
http://science.howstuffworks.com/transport/engines-equipment/two-stroke2.htm
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