Re: exhuast flow

[Mike & Deb <lefevre@xxxxxxxxxx>]

Hi Steve,
Exhaust pipe size is governed by engine size and volumetric efficiency 
and RPM range. Of course the factory compromises on lots of factors but 
Chrysler was better than the rest. Usual practice is to up-size from OEM 
. The amount depends on your modifications. Tailpipes are smaller 
because the exhaust gases cool and reduce in volume in the muffler and 
require a smaller pipe to maintain the same velocity through the system.
Mike LeFevre







On 5/5/2011 1:17 AM, MO ( Steve Mick) wrote:
> I am going to use 2 1/2" exhaust pipe, mufflers and tailpipe with 
> stock magnum nanifolds that have 2" outlet. Word I heard was that 
> exhaust  pipe larger than manifold outlet will hurt lower Rpm  
> performance up to about 3500RPM.  I would like to hear your opinions 
> on that. Also I have wondered why stock exhaust pipe is larger than 
> the tailpipe diameter?,,,,,,,,,,,,,,,,,,,,,,,,,,,,MO
>
> {Steve Mick}
> http://stevemick1964dodge.shutterfly.com/pictures/5
>
> ----
> Please address private mail -- mail of interest to only one person -- 
> directly to that person.  I.e., send parts/car transactions and 
> negotiations as well as other personal messages only to the intended 
> recipient, not to the Clubhouse public address. This practice will 
> protect your privacy, reduce the total volume of mail and fine tune 
> the content signal to Mopar topic.  Thanks!
>
> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
> http://www.1962to1965mopar.ornocar.org/mletiq.html and 
> http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. 


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.