Intake Manifold Porting Show ‘n Tell
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Re: Intake Manifold Porting Show ‘n Tell
Another thing I note about ported plenums, is that most of the dividers, come to a fairly sharp point.
I've studied aerodynamics a bit, and at subsonic velocity's, a full radius works better than a sharp leading edge. Is this just a case of the need for CSA out weighs turbulence?
I've studied aerodynamics a bit, and at subsonic velocity's, a full radius works better than a sharp leading edge. Is this just a case of the need for CSA out weighs turbulence?
Re: Intake Manifold Porting Show ‘n Tell
As far as radiuses, dry flow + wet flow = bigger picture.
A balanced person dares to stagger, and modify ports bigger
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Re: Intake Manifold Porting Show ‘n Tell
Some instances you have 2 ports flow way different and you can make leading edge work to advantage..Run it and look at where fuel trails or coloring is and adjust from there.Everything I work on csa and overall shape is king.Everything else is way below that.frnkeore wrote: ↑Sat Dec 03, 2022 2:14 am Another thing I note about ported plenums, is that most of the dividers, come to a fairly sharp point.
I've studied aerodynamics a bit, and at subsonic velocity's, a full radius works better than a sharp leading edge. Is this just a case of the need for CSA out weighs turbulence?
Re: Intake Manifold Porting Show ‘n Tell
just want to understand all the things I see on a dyno.
What about things you see in sim.
Havnt you ever chased something on the dyno you saw in sim. I know guys that have and found that power. Didn't happen 1st try.
What about things you see in sim.
Havnt you ever chased something on the dyno you saw in sim. I know guys that have and found that power. Didn't happen 1st try.
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Re: Intake Manifold Porting Show ‘n Tell
AFR 4811PM…
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'73 Camaro Z/28 NETO/N
434 SBC 11:1, 1.294, 6.178 @ 108.87, 9.81 @ 134.93 (3060#, Naturally Aspirated, Sunoco Ultra 94)
Chopper Air Port 917-589-1278
434 SBC 11:1, 1.294, 6.178 @ 108.87, 9.81 @ 134.93 (3060#, Naturally Aspirated, Sunoco Ultra 94)
Chopper Air Port 917-589-1278
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Re: Intake Manifold Porting Show ‘n Tell
Cut m in half boys.
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Re: Intake Manifold Porting Show ‘n Tell
Don't be afraid to do some testing and some of your own math on what long runner should have for more csa,taper etc.Most manifolds it should be pretty visible difference.You never learn if you don't try.
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Re: Intake Manifold Porting Show ‘n Tell
Any Ford bigblock guys here?? We need more help with manifolds hen any of you all lol.
Re: Intake Manifold Porting Show ‘n Tell
Any Ford bigblock guys here?? We need more help with manifolds hen any of you all lol.
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Re: Intake Manifold Porting Show ‘n Tell
Just finishing up manifold for 1300 hp 11 deg BBC dart heads.Guy got a little wild and cut some good gutters into walls and above port roof entrances.Had to resize runners and some epoxy work to fill his trenches.
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Re: Intake Manifold Porting Show ‘n Tell
PROFILER HITMAN 2.600 carb
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Re: Intake Manifold Porting Show ‘n Tell
That has some area.Guessing that not for pickup pulling a camper.lol
Re: Intake Manifold Porting Show ‘n Tell
BBFs are available. The High Riser before and after flow figures, RPM before and after flow figures. Joe-71
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Joe-71
Re: Intake Manifold Porting Show ‘n Tell
Here's my Dart intake I 've messed around with a few times, it's never performed very well at the track. Even my Air Gap makes more power.
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Re: Intake Manifold Porting Show ‘n Tell
'73 Camaro Z/28 NETO/N
434 SBC 11:1, 1.294, 6.178 @ 108.87, 9.81 @ 134.93 (3060#, Naturally Aspirated, Sunoco Ultra 94)
Chopper Air Port 917-589-1278
434 SBC 11:1, 1.294, 6.178 @ 108.87, 9.81 @ 134.93 (3060#, Naturally Aspirated, Sunoco Ultra 94)
Chopper Air Port 917-589-1278