Re: TC Exhaust System

[Robert F. Butson]

The downpipe from MPJG and XPAG exhaust is a larger diameter than the
tailpipe from the silencer (muffler). Why is this so? Would not the same
diameter tailpipe give better gas flow?....Bob.

[LAWRENCE A LECLERC]

Of course, but its BRITISH

----- Original Message -----
From: Robert F. Butson
To: mg-tabc@yahoogroups.com
Sent: Wednesday, September 26, 2007 3:46 PM
Subject: Re: [mg-tabc] TC Exhaust System


The downpipe from MPJG and XPAG exhaust is a larger diameter than the
tailpipe from the silencer (muffler). Why is this so? Would not the same
diameter tailpipe give better gas flow?....Bob.





[Non-text portions of this message have been removed]

[fnitz]

The larger diameter pipe has to handle pulses of exhaust. Behind the
muffler, it is smoothed out somewhat so the pipe can be smaller for the same
flow. It's the law of gas flow. A larger diameter pipe may not help, and in
fact could hurt.



From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] On Behalf Of
Robert F. Butson
Sent: Wednesday, September 26, 2007 2:47 PM
To: mg-tabc@yahoogroups.com
Subject: Re: [mg-tabc] TC Exhaust System



The downpipe from MPJG and XPAG exhaust is a larger diameter than the
tailpipe from the silencer (muffler). Why is this so? Would not the same
diameter tailpipe give better gas flow?....Bob.





[Non-text portions of this message have been removed]

[Rick Waters]

Another reason the tailpipe is smaller than the head pipe is that by the
time the gases have made it to the tailpipe, they are much cooler, and
the volume has shrunk accordingly.

-Rick, TC 7881

fnitz wrote:

>
> The larger diameter pipe has to handle pulses of exhaust. Behind the
> muffler, it is smoothed out somewhat so the pipe can be smaller for
> the same
> flow. It's the law of gas flow. A larger diameter pipe may not help,
> and in
> fact could hurt.
>
> From: mg-tabc@yahoogroups.com
> [mailto:mg-tabc@yahoogroups.com ] On
> Behalf Of
> Robert F. Butson
> Sent: Wednesday, September 26, 2007 2:47 PM
> To: mg-tabc@yahoogroups.com
> Subject: Re: [mg-tabc] TC Exhaust System
>
> The downpipe from MPJG and XPAG exhaust is a larger diameter than the
> tailpipe from the silencer (muffler). Why is this so? Would not the same
> diameter tailpipe give better gas flow?....Bob.
>
> [Non-text portions of this message have been removed]
>
>