Thanks for the reply Turbomotor,
After reading it I figured that I jump up at just the right time some of that might just graze just the top of my bald head. :-)
s.r.
Thanks for the replies,
Question, how big of diameter are you using and how big is each cylinder generally?
the pictured pipe is the 1.625 on an 1100cc engine and will easily makes in excess of 50psi boost (works best at 35 though), again that is 325cc smaller than the one I am currently...
my thought was by moving the restriction from the pipe so the motor could flow, it put the restriction at the turbine so the motor could breathe easier.
I guess that would be the question, when does the pipe get so small that it does obstruct flow, 1.375, 1.500, 1.625, or 1.750? It does seem that they do work better the larger diameter they are getting, Yes, short as possible...
I am about to begine the process of building a collector pipe for a 1425cc dragrace type motorcycle.
Historically I have always used 1.5" on some of the later ones I upped the size to 1.625" with good results.
I have always used a standard exhaust housing, collector with a common area before...
