Extrude honing TPI intake......is it worth the $$$?
07-22-2000, 06:48 PM
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Extrude honing TPI intake......is it worth the $$$?
Just heard back from Extrude Hone regarding a quote to power flow my ported plenum, SLP runners, and Edelbrock intake - the package price was $650. Anyone on the board have this done? What were the results? It's for the 406ci motor I'm building. SC
07-22-2000, 09:05 PM
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yessh! 650 bucks. WEll I saw an article in an old car magazine that had the manifolds extrude honed. They gained beteween 4-8 hp above the non extrude honed manifolds.....while headers added around 20 hp. Its a tough call. I think it would help a little, but hey if you got the cash let it flow.....
07-22-2000, 10:05 PM
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Why in the name of God would you use a long runner intake on a 406....that's more torque than you need and you will murder your top end...put that $650 towards a short runner intake or a super ram....even with runners you are not making much power above 4800 rpm.
You will basically have a tow truck motor.
You will basically have a tow truck motor.
07-22-2000, 10:10 PM
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Why in the name of God would you use a long runner intake on a 406....that's more torque than you need and you will murder your top end...put that $650 towards a short runner intake or a super ram....even with runners you are not making much power above 4800 rpm.
You will basically have a tow truck motor.
You will basically have a tow truck motor.
07-22-2000, 10:13 PM
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Hey Don,
Torque is where it is at... A 406 doesnt need to turn high rpms....at 5500 it does just fine, and can still turn consistent 12s...I dont call that a sacrifice, I call that daily driven FUN.
Torque is where it is at... A 406 doesnt need to turn high rpms....at 5500 it does just fine, and can still turn consistent 12s...I dont call that a sacrifice, I call that daily driven FUN.
07-22-2000, 11:03 PM
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Car: Tree Huggers
Engine: Do Not
Transmission: Appreciate Me.
Originally posted by Desert86Roc:
Torque is where it is at... A 406 doesnt need to turn high rpms....at 5500 it does just fine, and can still turn consistent 12s...I dont call that a sacrifice, I call that daily driven FUN.
Torque is where it is at... A 406 doesnt need to turn high rpms....at 5500 it does just fine, and can still turn consistent 12s...I dont call that a sacrifice, I call that daily driven FUN.
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07-23-2000, 10:18 AM
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actually, Don...........it is a tow truck motor! It's going in my sweeeeeeet '68 Chevy short-bed! The one I use to tow projects, haul parts, and drive daily for my business. That's why I'm not going with the Miniram - this motor will rarely - if ever - see 5000+ RPM. I realistically don't even need the extrude-honing done, but, well I'm a hot-rodder at heart, and well, why not? It's just money. SC
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07-23-2000, 11:03 AM
#8
Originally posted by super chevy:
actually, Don...........it is a tow truck motor!
actually, Don...........it is a tow truck motor!
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FORMULA 350 TK
Southern California 3rd Generation F-Body OrganizationŠ
07-24-2000, 12:30 AM
#9
Runners (measured individually)
Stock....................203.17 cfm
ACCEL................242.02 cfm
Extrude/ACCEL...275.83 cfm
Super Ram............289.18 cfm
Intake manifold with 3/8 inch radiused intlet
.............................222.45 cfm
Stock intake manifold with runner
Stock....................198.72 cfm
ACCEL................213.52 cfm
Extrude/ACCEL....217.11 cfm
Super Ram............220.67 cfm
ACCEL Hi-Flow intake manifold with 3/8 inch
radiused inlet.........251.51 cfm
ACCEL Hi-Flow intake manifold with runner
Stock....................215.83 cfm
ACCEL................232.53 cfm
Extrude/ACCEL....243.21 cfm
Super Ram............240.24 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with 3/8 inch radiused inlet
............................275.83 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with ACCEL runner
............................266.94 cfm
------------------
He who hesitates,... is lost!
Stock....................203.17 cfm
ACCEL................242.02 cfm
Extrude/ACCEL...275.83 cfm
Super Ram............289.18 cfm
Intake manifold with 3/8 inch radiused intlet
.............................222.45 cfm
Stock intake manifold with runner
Stock....................198.72 cfm
ACCEL................213.52 cfm
Extrude/ACCEL....217.11 cfm
Super Ram............220.67 cfm
ACCEL Hi-Flow intake manifold with 3/8 inch
radiused inlet.........251.51 cfm
ACCEL Hi-Flow intake manifold with runner
Stock....................215.83 cfm
ACCEL................232.53 cfm
Extrude/ACCEL....243.21 cfm
Super Ram............240.24 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with 3/8 inch radiused inlet
............................275.83 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with ACCEL runner
............................266.94 cfm
------------------
He who hesitates,... is lost!
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