"ported" vauum passages in Throttle Bodies
"ported" vauum passages in Throttle Bodies
(OP)
Our company makes aftermarket EFI systems, including throttle bodies. We used to have an outside contractor build our throttle bodies, but now we've got big heads and think we can do it ourselves. However, we don't have any solid information about EXACTLY where different ports should be located for vacuum advance, EGR, etc. There's the good ol' method of measuring OEM throttle bodies I suppose, but it'd be cool if somebody knew of any good reading (SAE papers, books, etc) so we could actually, dare I say it, DESIGN something!! Thanks
Andy
Andy





RE: "ported" vauum passages in Throttle Bodies
RE: "ported" vauum passages in Throttle Bodies
RE: "ported" vauum passages in Throttle Bodies
My opinions:
1. Is very important to know, for each engine, that are flow conditions via intake ducts
2. Is very important to know, for each engine, which EFI sistem sensor function, calibration and (i.e. BOSCH, siemens others...),ECU maping and ...
3. the simply way is to copy the intake ducts.