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Old 09-18-2008, 02:11 AM   #1
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Default Longer intake on .21 offroad engine.

What would be the pro's and con's of having a longer intake between the carb and crankcase on a offroad engine ???
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Old 09-19-2008, 07:18 AM   #2
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In theory a little more low rpm torque at the cost of a little high rpm.

Research intake harmonics for more detailed info.

Superflow has some really good info on intake harmonics.

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Old 09-19-2008, 08:07 AM   #3
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All about 2-stroke tuning:
http://edj.net/2stroke/jennings/

A venturi in the intake will give more performance, if it will be wider and longer I suspect it will be better. If it is only longer I think the performance as the reaction will slow down.

But read the book, it is very interesting stuff.
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