Hi, Guest
08-31-2004, 10:45 AM
yea, heres what I have to say.
Backpressure is not good!!!!!!!!!! it does not help to have backpressure!!!!!!!
if this would true, you would be saying that adding a kink to your exhaust pipe will gain you some performance, and we all know thats not true!
too many people think its backpressure that helps, when in actual fact its EXHAUST SCAVENGING that helps. basically exhaust scavenging is how when one cylinder fires, and as the exhaust travels away from the engine through the exhaust piping, it helps to draw out the next firing cylinder's exhaust gasses. As you open the exhaust and go to bigger diameter piping, this lessens the exhaust scavenging.
really I can only see exhaust scavenging as being important in an all motor car. For boosted applications, the bigger the exhaust the better.
thats my opinion on "backpressure"
Backpressure is not good!!!!!!!!!! it does not help to have backpressure!!!!!!!
if this would true, you would be saying that adding a kink to your exhaust pipe will gain you some performance, and we all know thats not true!
too many people think its backpressure that helps, when in actual fact its EXHAUST SCAVENGING that helps. basically exhaust scavenging is how when one cylinder fires, and as the exhaust travels away from the engine through the exhaust piping, it helps to draw out the next firing cylinder's exhaust gasses. As you open the exhaust and go to bigger diameter piping, this lessens the exhaust scavenging.
really I can only see exhaust scavenging as being important in an all motor car. For boosted applications, the bigger the exhaust the better.
thats my opinion on "backpressure"
SVT Motor Swap into 2000 zx3 with 5spd.
14.9 @ 93MPH
"I am going to run 5's .... I am planning on installing a rocket engine!"
14.9 @ 93MPH
"I am going to run 5's .... I am planning on installing a rocket engine!"