With that statement, it still makes me wonder how in the sq. port intake works so well on an oval port head if that's the case.
Intake Manifold Porting Show ‘n Tell
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Re: Intake Manifold Porting Show ‘n Tell
Re: Intake Manifold Porting Show ‘n Tell
Increased intake cu in volume available, it isn't about how screwed up you make the flow with the mismatch, the port will take what it wants.
Heat is energy, energy is horsepower...but you gotta control the heat.
-Carl
-Carl
Re: Intake Manifold Porting Show ‘n Tell
Almost done. Just a bit of burr finish to even up. Had to weld both right hand walls in the picture. It seems whoever done the 1206 match had the gasket on back to front on this side of the manifold (cyl #2 - #8) when marking out. All 4 port walls to the engine rear something like .080” - .100” shifted toward engine rear. Cylinders #1 - #7 side great match with vertical walls. Off to machine shop next for gasket face cut.
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I’m a Street/Strip guy..... like to think outside the quadrilateral parallelogram.
Re: Intake Manifold Porting Show ‘n Tell
Look at the low rise oval port manifold they take off. Relative improvement.
Ignorance leads to confidence more often than knowledge does.
Nah, I'm not leaving myself out of the ignorant brigade....at times.
Nah, I'm not leaving myself out of the ignorant brigade....at times.
Re: Intake Manifold Porting Show ‘n Tell
Gave it a burr finish before sending it to machinists.
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I’m a Street/Strip guy..... like to think outside the quadrilateral parallelogram.
Re: Intake Manifold Porting Show ‘n Tell
I'll call it a win for return to 1205 from 1206.
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I’m a Street/Strip guy..... like to think outside the quadrilateral parallelogram.
Re: Intake Manifold Porting Show ‘n Tell
Thanks, appreciate it.
I’m a Street/Strip guy..... like to think outside the quadrilateral parallelogram.
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Re: Intake Manifold Porting Show ‘n Tell
Edelbrock 454-R Vitctor for a 10.5:1 509 BBC with AFR 325 Magnum heads and a Jones solid roller...
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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
You do not have the required permissions to view the files attached to this post.
'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
- mt-engines
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Re: Intake Manifold Porting Show ‘n Tell
No, he spent probably 10 hours more than necessary for the build.
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Re: Intake Manifold Porting Show ‘n Tell
As many as needed for the application.mt-engines wrote: ↑Sat Feb 03, 2024 5:02 pm
No, he spent probably 10 hours more than necessary for the build.
'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
- mt-engines
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Re: Intake Manifold Porting Show ‘n Tell
How would you know? How much data do you have from porting intakes, heads and building engines?ChopperScott wrote: ↑Sun Feb 04, 2024 12:55 amAs many as needed for the application.mt-engines wrote: ↑Sat Feb 03, 2024 5:02 pm
No, he spent probably 10 hours more than necessary for the build.
Your finish work looks nice, but 90 percent of what you are doing is cosmetic and doesn't contribute to overall power gain.
If you spend more than 6 hours on an intake, you're using the wrong intake.
That intake with a plenum blend and a port match will support 900hp
I've ran them out of the box many times in 750-800hp pump gas 496 builds
Just trying to encourage you that many times less is more.
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Re: Intake Manifold Porting Show ‘n Tell
How would you know? Have you tested any of my intakes?mt-engines wrote: ↑Sun Feb 04, 2024 2:39 pmHow would you know? How much data do you have from porting intakes, heads and building engines?ChopperScott wrote: ↑Sun Feb 04, 2024 12:55 amAs many as needed for the application.mt-engines wrote: ↑Sat Feb 03, 2024 5:02 pm
No, he spent probably 10 hours more than necessary for the build.
Your finish work looks nice, but 90 percent of what you are doing is cosmetic and doesn't contribute to overall power gain.
If you spend more than 6 hours on an intake, you're using the wrong intake.
That intake with a plenum blend and a port match will support 900hp
I've ran them out of the box many times in 750-800hp pump gas 496 builds
Just trying to encourage you that many times less is more.
90% cosmetic? What are you looking at?
I can spend over an hour per port while matching. If you're only spending 6 hours on an entire intake, it's no wonder your intakes aren't performing.
Fully ported, it'll support more.
Many times, you could have made more power.
I don't need encouragement when signing my name on a service.
'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