AFR Eliminator Race Intake Manifold for SBC

General engine tech -- Drag Racing to Circle Track

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2Quickrides
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by 2Quickrides »

Not the 4811, but I've got the 4810PM on a 406. Unfortunately haven't gotten it on a dyno with the new combo, but at the strip with 3400 DA it ran:
60'= 1.8 (255/50-17 Nitto G2's. Honestly surprised they did that well)
1/8= 7.62@96
1/4= 11.76@121
Definitely needs some drag radials next year

72 Vette, 3100 lbs, TKO600, 3.73, 26.5" street tire, setup for road course duty. It's amazing how much drag these cars have, most minivans have lower drag coefficients.
Dart SHP, Scat forged internal balanced, 10.7 CR
AFR 195 Comp heads
AFR 4810PM intake with the AFR tapered 4 hole spacer
Straub 233/235, .584/.544, 108 cam
Holley Sniper Xflow
1-3/4" primaries, 2-1/2" mandrel Magnaflow full exhaust
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

No turning back now…
43B341A6-6D14-4C91-910C-43AF4204A6CF.jpeg
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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)
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1980RS
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by 1980RS »

ChopperScott wrote: Fri Dec 02, 2022 1:59 pm No turning back now…

43B341A6-6D14-4C91-910C-43AF4204A6CF.jpeg

72695627-F772-46B8-B47B-78C71EF33543.jpeg
I bet I know what Chad would do to that intake plenum.
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

1980RS wrote: Fri Dec 02, 2022 8:51 pm
ChopperScott wrote: Fri Dec 02, 2022 1:59 pm No turning back now…
I bet I know what Chad would do to that intake plenum.
Bye bye clover leaf? :lol:
'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
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by 1980RS »

ChopperScott wrote: Fri Dec 02, 2022 9:22 pm
1980RS wrote: Fri Dec 02, 2022 8:51 pm
ChopperScott wrote: Fri Dec 02, 2022 1:59 pm No turning back now…
I bet I know what Chad would do to that intake plenum.
Bye bye clover leaf? :lol:
Also he would open that plenum are up big time.
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

That was my first time working under a clover leaf. I understand wanting to remove it for ease of access. It’s a PITA avoiding damage to the carb surface. I do all my work at home with no access to a machine shop.
Last edited by ChopperScott on Sat Dec 03, 2022 9:10 pm, edited 1 time in total.
'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
ChopperScott
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

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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
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by Lloyd klem »

You def are getting better at your porting chopper..I can tell you go slow and don't just plow a hole and say oh well.Keep after it.
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by Lloyd klem »

Just starting on this one.This is a nice design manifold to begin with but look how much corner runners can open line of site wise.This can be done to about any manifold if you just get creative.You can really get your runner lengths evened up.
IMG_20221203_210924155.jpg
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

Lloyd klem wrote: Sat Dec 03, 2022 9:28 pm You def are getting better at your porting chopper..I can tell you go slow and don't just plow a hole and say oh well.Keep after it.
Thank you, kind sir.

With the bulk of the work done, and all the machined surfaces covered in torn-up duct tape, I removed the tape and took some pics. I will apply more tape and go back to work on a few details after inspection.
'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
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

IMG_7459.JPG
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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
ChopperScott
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

BURR finish...

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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
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by Dave B »

ChopperScott wrote: Fri Dec 02, 2022 9:22 pm
1980RS wrote: Fri Dec 02, 2022 8:51 pm
ChopperScott wrote: Fri Dec 02, 2022 1:59 pm No turning back now…
I bet I know what Chad would do to that intake plenum.
Bye bye clover leaf? :lol:
We have a 421 that we bought ,it has that clover leaf intake.He Dyno it with a small amount of changes like you did. We welded around plenum and cut the piss out of it in the mill.We reworked entire intake then.Went from 744 hp to 786. It picked up the rpm it should of had to begin with. It was definitely the turd stuck in the tube of this engine. Now guy wants engine back since it runs like it should of.
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by Dave B »

ChopperScott wrote: Fri Apr 07, 2023 10:03 am BURR finish...


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IMG_7899.JPG
Look in pics you put up.At flange look at grooves or gutters that got made with grinder.They are right at edge of where wall and floor meet. Its super important to keep your floors flat.Fuel will puddle and run there.Not easy to keep floors flat but makes a huge difference in how the intake works.Same for floor in heads . I see pics all the time with this.
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Re: AFR Eliminator Race Intake Manifold for SBC

Post by ChopperScott »

Hello Dave. You lost me there. Could you please elaborate?
'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
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