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Old 03-07-2018 | 06:07 AM
  #5543  
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ralphierace13
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Originally Posted by SlowLST2
Nah, I’m still on the hogwash bandwagon. Long manifold = lower rpm peak power; short manifold = higher peak rpm power. However if the engine isn’t timed for the manifold being used, the engine will tell you by not running correctly. An engine will stage on the pipe at a lower rpm on a long pipe/system.

Many times, the “I read it in the internet” line goes into the trash bin of acceptability. Especially in this case.
internet line goes goes in the trash!! y I said go out and test for yourself!! its funny all u guys disagree and not one person has said I have tested it on the lap counter ? do u guys practice with a lap counter? or u just go out and say ok long manifold I'm slow and short I'm still slow lol!! geez I love people that talk theory, except roeolf I'm confident he has tested pretty much everything on earth.. but really u guys mean to tell me all your years of racing u just accepted long mean top end !! lol

another thing you keep saying which is totally wrong u keep saying long manifold lower peak power !! dude no manifold increases or decreases peak power period!! get that out of your head only roll of a manifold is to speed up of delay the time it takes for the pulse wave to send back the unused portion of the fuel called scavenging and reach peak power, but u will always hit peak power no matter which one your using.. I'm talking about when u have a pipe and manifold set on just changing the length does not loose or gain power, if u said I had a 2015 set on and I changed to a 2069 then that's different one set up can give u less power but not just changing the length.

so roeolf explain the logic that if the pulse wave is sent out and on return forces the unspent fuel back in and causes the extra charge right, so what logic is it that if a longer manifold is used and takes the pulse wave longer to return that it would make sense that the power comes on faster? as apposed to a short manifold sending the pulse wave out and returning faster causing the power to ignite quicker? maybe my brain works backwards ...
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