Changes in exhaust diameter - good or bad?

Reply Subscribe

Thread Tools

Search this Thread

03 September 2002, 08:24 PM

Floyd

Scooby Regular

Thread Starter

iTrader: (9)

Join Date: Apr 2000

Posts: 5,470

Likes: 8

Received 9 Likes on 5 Posts

A lot of people on here just add a performance back box to std exhaust systems. They seem to be 2 1/2inch upwards, which then mate to the std centre pipes that are 2 1/4 inch.

When the gases reach the BB pipe and expand is this good for gas flow or bad? Should the pipe be the same all the way through? I know some systems that are 3 inches at the rear.

F

Reply Like

03 September 2002, 08:54 PM

Floyd

Scooby Regular

Thread Starter

iTrader: (9)

Join Date: Apr 2000

Posts: 5,470

Likes: 8

Received 9 Likes on 5 Posts

I did'nt think anyone on here would know the answer....

Reply Like

03 September 2002, 09:14 PM

NutterKam

Scooby Regular

Join Date: Mar 2002

Location: London

Posts: 427

Likes: 0

Received 0 Likes on 0 Posts

BTT
Personally, I'm not qualified enough in thermodynamics to answer that question. Hopefully, some of the mad scientists will though as I'm intrigued also.