Eliminate the Muffler

So I realize that I'm relatively new to the world of motorbicycling, but I'm fairly well grounded in thermodynamics. What I'm getting at is removal of the muffler on my chinese kit engine to maximize efficiency. The only down side that I can think of would be the ridiculously loud noise as I roll down the street. If you think about it, this might a) create awareness for cars and b) make my bike sound like a real motorcycle. Of course there is the Police factor, but we'll cross that bridge when it happens.

Also a straight pipe exhaust may be an alternative to no muffer at all.

Your thoughts?

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Cycofast

These engines need back preasure, Without it alot of the fuel would just blow through I thought?????? Leading to a lack of power ??????

Is this really true? I have seen some aftermarket mufflers that have been elongated; wouldn't this effect the "back pressue" ? I guess what I'm saying is that if P and V are proportional, wouldn't the longer muffler negatively impact the P if back pressure was necessary?

Thanks for the feedback.

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Cycofast

Would V = Volume and and and P= Police

2 stroke engines are very sensitive to exhaust pressure, size and shape. Because they have no valves like a 4 stroke, the exhaust if built correctly, will act like a valve and increase performance over no exhaust at all. 4 strokes on the other hand pretty much could care less about their exhaust as long as it is not restricting flow. So by eliminating your exhaust you will not only decrease the performance of your engine you will not make any friends in the community.

LOL sorry P=pressure and V=volume.

Thanks for the explanation ghost0.

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Cycofast

Keeping them quiet is the best policy. If you upset to many people, the next thing you know laws change, and not in your favor.

Well said Chitty !! if you live out of town than go your best. But in the city maybe not so great an idea.....

No muffler= great wide open full throttle performance, no idle, very bad throttle transition from idle to wide open or anywhere in between.

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If it ain't broke, and you mess with it long enough, it will be.