Ported Exhaust Manifold or Power Log?
#2
12-14-2011, 09:19 AM
Plog
Even ported manifolds doesn't help the flow of that front manifold enough... Terrible design
Even ported manifolds doesn't help the flow of that front manifold enough... Terrible design
#3
12-14-2011, 09:44 AM
Join Date: Sep 2008
Location: Southeast PA
Posts: 25,136
You can't PORT the front manifold very much because it is not round. It has a crescent moon shape.
The PLOG makes the front manifolds round and the collector is larger.
Ported rear manifold is pretty decent though if it is cheaper than a rear plog.
The PLOG makes the front manifolds round and the collector is larger.
Ported rear manifold is pretty decent though if it is cheaper than a rear plog.
#5
12-14-2011, 10:02 AM
Join Date: Sep 2008
Location: Southeast PA
Posts: 25,136
#6
12-14-2011, 10:31 AM
D-porting is possible and if done correctly results in better flow dynamics than round primaries due to the shape of the exhaust port on the head itself. It's D shaped as well. You can imagine if you stick a round tube over a D shaped port and run anything through it you create a turbulence due to overlap on the flat side.
#7
12-14-2011, 11:45 AM
Join Date: Apr 2010
Location: Mentor, Ohio
Posts: 12,156
I had the choice and I went PLOG. It seems like a better idea to me (more open to flow better, removing the front mani from being a restriction in the set up).
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Shandley
FWD Tech Guides '95-'07
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