Re: Dual exhaust, side thread to what 4bbl

["Gary Pavlovich" <glpavlovich@xxxxxxx>]

And the easier it is for the engine to operate efficiently opens the door 
for larger carbs and camshaft to take advantage of the improved flow...to a 
point.  A larger carb may not be "needed" but the engine will perform better 
with the larger carb.
Gary P.

-----Original Message----- 
From: Bill M
Sent: Tuesday, January 14, 2014 8:40 AM
To: 62-65 Mopar List
Subject: Re: Dual exhaust, side thread to what 4bbl

It takes less energy from the engine to push the exhaust out the dual
pipes, so that energy (HP) can be put towards driving the car. The
pinch point is the valves and how wide they are open. You can only
flow so much air through a hole of a given size unless you pressurize
(supercharge the engine) so technically you aren't flowing a higher
volume of air, you are just making it easier for the engine (an air
pump) to expel it. Think of breathing out through a coffee stir vs a
McD's drink straw...much less effort.

Bill M
65 Coronet 500 'vert http://goo.gl/6xUS1
73 Dart Sport, 05 Ram 2500 CTD, 4WD, QC, LB, Laramie
21 Model T Depot Hack, 06 Mazda 3


On Tue, Jan 14, 2014 at 11:05 AM,  <Dodger7998@xxxxxxx> wrote:
> Looking for opinions here, several days ago Gary H. made a
> statement,,,,,dual exhaust will not change (carb) air flow needed , this 
> got
> me thinking,,,,,,, please correct me , in my opinion dual exhaust will
> increase the amount of air flow especially during WOT, the benefit of a 
> dual
> exhaust other than sound is it's ability to flow more exhaust fumes, that
> being said during that split second when both exhaust and intake valves 
> are
> open the scavenging effect will increase the HP, by clearing the cylinder
> better and drawing more air and fuel into the cylinder,,,,,,,,,,so my
> question,,has it changed the needed size of CFM carb needed?
>
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!

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