don't x-pipes reduce cross-sectional area?
10-05-2012, 08:39 PM
#21
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according to one of the mags,i think it was either car craft or chevy high performance,the x-pipe needs to be as close as possible to the collectors. and its purpose is to reduce or eliminate reversion caused by adjacent cylinders firing. ie,cyl 5 's exhaust valve is still partially open when cyl 7 valve opens and the high back pressure causes reversion or reduced scavaging for cyl 5.
10-06-2012, 09:00 PM
#22
After reading what I typed I can see how it would be confusing lol, but I guess I meant to say the x pipe doesn't increase cross sectional area but it does improve flow if that makes sense. The momentum of a previous pulse pulls the next one through, sort of like the vacuum of a piston moving down on the intake stroke helps to pull fuel and air in. By the way if you are more interested the program I used was ANSYS Fluent, I don't know if you have access or not but I would be willing to share my findings
