OLD LOW PORTS VS. NEW HIGH PORT HEADS! скачать в хорошем качестве

OLD LOW PORTS VS. NEW HIGH PORT HEADS!

Difference in intake port approach and the compact chamber a result of rolling over to flatter valve angles. Advantages and how it contributes to combustion efficiency with the help of mixture motions, and rpms effects on reducing the need for swirl and tumble motions as engine speeds increases to unbelievable levels not possible not that long ago! What I missed in this segment is one very impressive Ford big block cylinder heads exhibiting impressive flow numbers and reversing its swirl the opposite way while increasing valve lifts! Resulting in a baffling "flow dip" during testing with a flow bench. Once these reversals are corrected then the flow dip disappeared and flow improve unimpeded to even higher levels! Correction: I stated pressures at the short side of the high port is not entirely accurate. At this juncture bypassing increases pressure at this vicinity and (pressure I stated) meant pressure for the porter/designer to do the necessary changes to keep the flow/fuel separation to a minimum. The cover photo for this video shows two cylinder heads, a plated TFS "R" and an AFR at the back getting the same intake port modifications . The TFS picked up 40cfm wherein the AFR picked up 35cfms with minimal increase in port volumes! Obtw, I get numerous requests for technical advice and if interested, tex me @ 626 203 2712. Half hour to 1 hour+ rates are available. Most calls go over as posted and it is ok. US Pacific time zone.