Intake manifold
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[[File:429 CJ Q JET INTAKE 2.jpg|thumb|left|300px|429 Ford factory Q-jet cast iron intake]] <br style="clear:both"/> | [[File:429 CJ Q JET INTAKE 2.jpg|thumb|left|300px|429 Ford factory Q-jet cast iron intake]] <br style="clear:both"/> | ||
| − | =Types of intakes= | + | ==Types of intakes== |
| − | ==Dual Plane== | + | ===Dual Plane=== |
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| − | ==Single plane== | + | ===Single plane=== |
[[File:WEIAND 7546 001.jpg|thumb|300px|left|Weiand single plane p/n 7546.]] [[File:EDELBROCK-STREETMASTER-INTAKE-MANIFOLD 2291382648922-.jpg|thumb|300px|left|Edelbrock Streetmaster intake, an earlier predecessor to the Torker]] | [[File:WEIAND 7546 001.jpg|thumb|300px|left|Weiand single plane p/n 7546.]] [[File:EDELBROCK-STREETMASTER-INTAKE-MANIFOLD 2291382648922-.jpg|thumb|300px|left|Edelbrock Streetmaster intake, an earlier predecessor to the Torker]] | ||
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==Multiple carb intakes== | ==Multiple carb intakes== | ||
| − | ==Dual 4 barrel== | + | ===Dual 4 barrel=== |
| − | ==Tri power== | + | ===Tri power=== |
[[File:Tripower.jpg|thumb|300px|left|Pontiac Tri Power]] | [[File:Tripower.jpg|thumb|300px|left|Pontiac Tri Power]] | ||
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| − | =Ram induction= | + | ==Ram induction== |
[[File:H&M Enginex7.jpg|thumb|left|330px|'''High and Mighty''' | [[File:H&M Enginex7.jpg|thumb|left|330px|'''High and Mighty''' | ||
One of the earliest versions of ram induction]] <br style="clear:both"/> | One of the earliest versions of ram induction]] <br style="clear:both"/> | ||
| − | ==Cross ram== | + | ===Cross ram=== |
[[File:X-ram comparison.jpg]] | [[File:X-ram comparison.jpg]] | ||
==Individual runner== | ==Individual runner== | ||
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One of the more iconic intake set-ups is the tunnel ram. First used in competition in drag racing, it was made a household word by driver/engine builder/tuners like Grumpy Jenkins (RIP). He used a 331 SBC with a tunnel ram/dual Holley 4 barrel carbs against engines ~100 ci larger than his in A/Stock- and won. | One of the more iconic intake set-ups is the tunnel ram. First used in competition in drag racing, it was made a household word by driver/engine builder/tuners like Grumpy Jenkins (RIP). He used a 331 SBC with a tunnel ram/dual Holley 4 barrel carbs against engines ~100 ci larger than his in A/Stock- and won. | ||
| − | ==Cross ram== | + | ===Cross ram=== |
[[File:1960 Dodge D-500 Long Ram Engine.gif|left]][[File:413 300 SERIES CHRYSLER CROSS RAM ENGINE.jpg|frame|right|413 Cross Ram]]<br style="clear:both"/> | [[File:1960 Dodge D-500 Long Ram Engine.gif|left]][[File:413 300 SERIES CHRYSLER CROSS RAM ENGINE.jpg|frame|right|413 Cross Ram]]<br style="clear:both"/> | ||
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==Fasteners== | ==Fasteners== | ||
| − | L30/L31 Vortec engines use fasteners made | + | L30/L31 Vortec engines use fasteners made specifically for the plastic Vortec intake and intake gasket. To prevent over torquing the fasteners and crushing the intake gaskets, the bolts come with a longer shank having a non threaded bottom portion so as to bottom out before the gasket or intake sealing flange/bolt hole is compromised. Below the OEM bolt is on the left, an ARP bolt, right: |
| − | + | ||
| − | Below the OEM bolt is on the left, an ARP bolt, right: | + | |
[[File:VORTEC INTAKE BOLTS.jpg|thumb|left|]] <br style="clear:both"/> | [[File:VORTEC INTAKE BOLTS.jpg|thumb|left|]] <br style="clear:both"/> | ||
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[[File:VORTEC GASKET OVER STANDARD INTAKE GASKET.jpg|thumb|200px|left|Vortec intake gasket over Gen I gasket]] | [[File:VORTEC GASKET OVER STANDARD INTAKE GASKET.jpg|thumb|200px|left|Vortec intake gasket over Gen I gasket]] | ||
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| + | ==Intake heat shield== | ||
| + | Many OE intake manifolds came equipped with a sheet metal heat shield. The purpose of the heat shield is to protect the bottom of the intake manifold from hot oil being splashed up onto it. This wasn't to keep the intake cooler, it was to keep the splashed oil from carbonizing on the hot exhaust heat crossover that runs beneath the plenum to provide carb heat. | ||
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| + | That said, if the heat crossover has been blocked off, the shield would tend to help keep the hot oil off the intake. But after the engine has heat soaked, the underside of the intake will be close to the temperature of the rest of the engine, anyway. | ||
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| + | ===Removing the heat shield=== | ||
| + | During use, the heat shield can become occluded with built up carbon. This can be cleaned out by removing the heat shield. | ||
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| + | Use a sharp, gradually tapered 1/4" chisel to get up under the edges of the rivets (you might need to grind a chisel down to get the best tip. Don't grind until red hot or the temper will be lost). The rivets used on Chevy intakes usually have spiral ridges on them that help hold them in position, so they tend to turn as they come out. | ||
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| + | If a rivet gets broken off in the removal process, do not worry. Leave the broken piece in the intake. Move a little to one side of the hole where the broken rivet is located and center punch and drill a new hole through the heat shield into the intake to receive a replacement rivet. A depth stop can be used to prevent the hole from being drilled too deep. | ||
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| + | ===Replacing the heat shield=== | ||
| + | The shield should be replaced after cleaning. The intake can be tapped for screws or the rivet holes peened/staked to close them some so the rivets will have a good hold. The original rivets may be OK to be reused if they weren't damaged during removal, or new rivets can be bought to replace them. When replacing the rivets use locktite to help hold them in place. | ||
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| + | [[File:Heat shield rivets.jpg]] <br style="clear:both"/> | ||
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[[Category:Engine]] | [[Category:Engine]] | ||
[[Category:Carburetors]] | [[Category:Carburetors]] | ||
[[Category:undeveloped articles]] | [[Category:undeveloped articles]] | ||
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