- Location
- Rainy side of Washington
doesn't work quite that way... too small a pipe will restrict flow.
The whole point is to keep a significant amount of gas flowing as quickly as possible. The momentum of the gases in the exhaust system results in low average pressure in the system which remains below the pressure of the gases in the cylinders, which helps scavenge or suck the gases out of the cylinders.
If you put too small a pipe on the system it will in fact increase velocity, but it the gas will back up in the pipe, pressure will increase, and there won't be enough scavenging to really clear the cylinders.
At least that is how it makes sense to me.
I know my '98 only got more gutless when I pulled the muffler and tailpipe for testing, and worse when I bored a hole through the cat element to see if it was plugged. Turned out that the head gasket is smoked, and I have a new muffler, new cat, new tailpipe, and parts to put together a downpipe sitting around for installation after I swap a new motor into it so I can rebuild the old one outside the truck on spare time.
The whole point is to keep a significant amount of gas flowing as quickly as possible. The momentum of the gases in the exhaust system results in low average pressure in the system which remains below the pressure of the gases in the cylinders, which helps scavenge or suck the gases out of the cylinders.
If you put too small a pipe on the system it will in fact increase velocity, but it the gas will back up in the pipe, pressure will increase, and there won't be enough scavenging to really clear the cylinders.
At least that is how it makes sense to me.
I know my '98 only got more gutless when I pulled the muffler and tailpipe for testing, and worse when I bored a hole through the cat element to see if it was plugged. Turned out that the head gasket is smoked, and I have a new muffler, new cat, new tailpipe, and parts to put together a downpipe sitting around for installation after I swap a new motor into it so I can rebuild the old one outside the truck on spare time.