exhaust manifold trick

[2XLR8]

Lets not forget that when the reflected signal is pushing the air fuel mixture back into the cylinder the piston is covering most of the port. I would tend to believe that the piston has more to do with flow direction into the cylinder than a little lip 3 or 4 inches away at the bottom of the exhaust port . If the reflected signal was too weak or at the wrong time due to wrong tuned length or improper port timing then I can see it maybe helping, But I still doubt it.

 

[egbrig]

Once in awhile I read posts that are worth reading, MTRHEAD, you too are one of those who's posts I enjoy and respect. I too am so clueless I don't know even know I'm clueless.

 

[steveyz250fpilot]

Hang on to it until the bandwagon is in full swing, then sell it at the apex.

 

[masterblaster]

dohhhh if randy thinks mtrhead was right.............

 

[easyrhino]

Sounds good. The cylinder receives the pipe charge just before the piston closes. If the lip increases the pressure at the top of the port...more fuel goes in. Of course the pressure at the bottom is lower. However the piston is block lower part of the port.
On a Bpipe it may not work because the pipe charge is making a hard turn to enter the cylinder and the centrifugal force would cause the cross section of the pipe charge to be un-uniform. LOL

It would need a cool sticker.
"The grenade has spoken."