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T77911S T77911S is offline
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Join Date: Oct 2006
Location: MYR S.C.
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Originally Posted by Robbbyg View Post
How can they be efficent if the hot air is hitting at the same time??!
shouldnt they be lengthened/ made with the firing order of the engine in mind? for the Most efficent air delivery?

Well that's my view on it, anyone try it?
i think i know what you are trying to say, so look at it this way.

if all the pipes are the same length, then the fact that no 2 cyclinders fire at the same time, there will be no chance of 2 exhaust gases trying to occupy the same space at the same time since each one travels the same distance. cut #1 long and #2 short, they could try to combine at the same time where the 2 pipes come together since #1 fires then 6 then #2.

far from expert here but i think it really comes down to equal back pressure and makeing each cyclinder produce the same power. also, if you have one cyclinder with a short pipe producing less back pressure, that could lean out that cylinder, or make you richen the others to compensate.
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Old 05-09-2014, 09:56 AM
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