Set of 59* W9s I am finishing up
#1733709
01/19/15 01:19 AM
01/19/15 01:19 AM
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Joined: Jan 2003
Posts: 1,784 PA
W5DART66
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Re: Set of 59* W9s I am finishing up
[Re: tubtar]
#1733711
01/19/15 01:32 AM
01/19/15 01:32 AM
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Posts: 1,784 PA
W5DART66
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Quote:
Work of art. care to share flow #'s ?
Normal deal is 380s-390s 260s-270son exhaust side
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Re: Set of 59* W9s I am finishing up
[Re: Darryls-Demon]
#1733713
01/19/15 01:48 AM
01/19/15 01:48 AM
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Joined: Jan 2003
Posts: 1,784 PA
W5DART66
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How good or bad is the air speed with that much port volume Brett? Thanks for the pics.
Air speed is still fast this port was on the 2011 engine masters 411ci 535 of TQ at3500 rpm. In the big picture the port is still small 3" at port opening
Over 320feetper second down center of port
380-425FPS over short turn.
You can have large lazy port or larg port that is designed properly that for the most part has a much more Homogeneous flow floor to roof
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Re: Set of 59* W9s I am finishing up
[Re: W5DART66]
#1733716
01/19/15 01:03 PM
01/19/15 01:03 PM
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
Over 320feetper second down center of port
380-425FPS over short turn.
I suspect the SpeedTalk gurus would say the fps #s over the SSR are too high, since they seem to claim 350 as the max during multiple threads I've read "over there."
Me? I just grind 'em and run 'em!
Well, not exactly.
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Re: Set of 59* W9s I am finishing up
[Re: ADakotaRTGuy]
#1733718
01/19/15 02:16 PM
01/19/15 02:16 PM
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Joined: Jan 2004
Posts: 13,247 Mt. Vernon, Ohio
dartman366
I Live Here
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I Live Here
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Posts: 13,247
Mt. Vernon, Ohio
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Thanks Brett for the head porn,now you have my attention,curious question,, what was the final chamber size on those beauties.
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
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Re: Set of 59* W9s I am finishing up
[Re: W5DART66]
#1733719
01/19/15 02:20 PM
01/19/15 02:20 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
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Romeo MI
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Brett... I see some welding on them... whats with that or is it where you went through... some spots dont even look near the ports.... but they look great
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Re: Set of 59* W9s I am finishing up
[Re: 1967dartgt]
#1733721
01/19/15 03:05 PM
01/19/15 03:05 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
Brett... I see some welding on them... whats with that or is it where you went through... some spots dont even look near the ports.... but they look great
That's pushrod pinch area, Mopar designed them to run a 550 offset rocker and Brett makes them take a 750 rocker for his port program.
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Re: Set of 59* W9s I am finishing up
[Re: Street Monkies]
#1733723
01/19/15 05:43 PM
01/19/15 05:43 PM
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Joined: Jan 2003
Posts: 1,784 PA
W5DART66
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Quote:
I always like to hear this big lazy port vs a big well designed port kind of discussion. What makes the port to big or even to small? Depending on if we are basing this off for every engine or a particular combination. Big port on small cubes is going to need a lot of rpm to make port efficient. It might never become efficient if you can't spin it high enough. A big ci motor is different. More ci will move more air at a lower rpm vs a small ci. But it also depends on how many rpms, both engine sizes, and rpm. Rpm is cubic inches also.
How about you go check mis cross section and valve size on 360 LS3 chevy then get back to me on the large port not working on small CI or need big RPM to make it work.
A properly designed larger port for giver CI will work better than the BS high velocity small port.
And as I said this is only 3" min CS not large by todays standards.
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Re: Set of 59* W9s I am finishing up
[Re: W5DART66]
#1733724
01/19/15 07:03 PM
01/19/15 07:03 PM
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Joined: Feb 2011
Posts: 159 australia
charger410
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australia
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Nice job your right 300cc cross section ain't big especially for that 472ci. I've got a set of SBC heads that have a 338cc port on a 510ci motor. Thanks for posting
Peter. Australian Charger, alloy block injected 410in, w9 na 9.03@148 leafs 3000lb
1967 barracuda 605 hemi Stage5 millennium 8.2@170
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