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121 Results Found For "Restrictor"
Summit Racing™ Idle Feed Restriction Tuning Kits
These Summit Racing™ idle feed restriction tuning kits are designed to fix low-end drivability issues, such as black smoke, poor fuel economy, and surging at idle. They include four each of 0.043 in., 0.046 in., 0.049 in., 0.052 in., 0.055 in., and 0.059 in. idle feed restrictions. These Summit Racing™ idle feed restriction tuning kits also include two nozzle bar gaskets and a detailed instruction sheet for easy installation.
( 14 )
$50.99
Moroso Water Outlet Restrictor Kits
Limiting the amount of coolant flow leaving the engine lets you control the amount of heat absorbed by the coolant itself. You can adjust the flow with one of these Moroso water outlet restrictor kits. They include include three round aluminum plates with 5/8 in., 3/4 in., and 1 in. I.D. holes. Simply mount the appropriate plate under the water outlet on the intake manifold. An easy and economical temperature control solution!
( 31 )
$17.99
Summit Racing™ Water Outlet Restrictors
Limiting the amount of coolant flow leaving the engine lets you control the amount of heat absorbed by the coolant itself. You can adjust the flow with a Summit Racing™ water outlet restrictor kit. They include three round aluminum plates with 5/8 in., 3/4 in., and 1 in. I.D. holes. Simply mount the appropriate plate under the water outlet on the intake manifold. An easy and economical temperature control solution!
( 4 )
$8.99
Quick Fuel Carburetor Idle Feed Restrictors
These Quick Fuel carburetor idle feed restrictors are designed to control the fuel side of the idle and off-idle system. They are manufactured from durable brass and install easily into the Quick Fuel billet aluminum metering blocks. Available in different sizes, Quick Fuel carburetor idle feed restrictors will help you fine-tune your carburetor to your specific engine combination.
( 13 )
$7.12
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$27.30
Allstar Performance Oil Restrictors
Cut power loss from windage with Allstar Performance oil restrictors. They're designed to replace the factory oil galley plugs at the back of the block and restrict oil flow to the top end, forcing more oil to the bearings. The restrictors are available in different sizes for various engine applications.
( 3 )
$15.99
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$35.99
Improved Racing Adjustable PCV and Turbo Oiling Restrictor Valves
Replace your traditional PCV valve with Improved Racing adjustable PCV restrictor valves for better reliability and increased crankcase vacuum. They are perfect for LS engines with aftermarket valley covers that do not have a built-in PCV restrictor like the factory cover, and they can also restrict oil flow to a turbocharger to avoid flooding the turbo. Improved Racing's restrictor valves can be used on their own, replacing traditional PCV valves in naturally aspirated engines, or combined with a check valve to prevent pressurizing the crankcase under boost in turbocharged applications. Features and benefits: * Adjustable PCV restrictor with 5 pre-drilled sizes: -- 2.6mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm -- Plus, a blank disc with a 1mm pilot hole for custom-drilled sizes * Female -6 O-ring boss ports on each end -- Can be adapted to many different fitting types and sizes (male AN, hose barb, quick connect, etc.) * All-aluminum 6061 T-6 construction with black Type II anodized housing * Each plate is laser-marked with the restrictor hole diameter in millimeters * No moving parts for improved durability over traditional PCV valves
Not Yet Reviewed
$19.90
Manufacturer Rebate
AutoMeter Restrictor Fittings
These AutoMeter restrictor fittings help with pressure spikes and excessive pressure fluctuations.
( 2 )
$17.99
Moroso Oil Restrictor Kits
When roller rocker arms are installed, along with a mechanical lifter cam, the amount of oil flow required to the valvetrain is greatly reduced. Installing Moroso oil restrictor kits limits this unnecessary oil flow. These kits reduce the power-robbing windage created from the excess oil draining past the rotating assembly and keeps the oil flowing where it is needed most, the rod and main bearings.
( 21 )
$21.99
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$44.99
Engine Works Oil Restrictors
Engine Works offers oil restrictors for a variety of engine applications from the 1950s and up. Machined from aluminum, they fit in most small and big block Chevy blocks (except Bowtie) at the rear of the block. Simply replace the oil galley plugs (tapping may be required). These restrictors are not for use with hydraulic lifters. An oil restrictor installs in the oil passages of the engine block. It limits the flow of oil to certain parts of the engine. Engine oil lubricates and cools vital engine components. In most cases, more oil usually means the engine will run cooler and last longer. However, in some specific RACING applications, more oil can actually reduce the performance of the engine. When roller rockers and solid lifters are installed, the amount of oil required by the valvetrain is reduced greatly. Installing an oil restrictor kit will limit the oil flow, reducing the windage created from excess oil draining past the rotating assembly. This keeps the oil flowing where it is needed most—to the rod and main bearings.
Not Yet Reviewed
$13.71
COMP Cams Oil Restrictors
When building a high performance engine with a solid or solid roller cam, it's necessary to meter the amount of oil going through the lifters and up to the rocker arms. Too much oil to the top will starve the main and rod bearings and cause engine failure. COMP Cams oil restrictors are easy-to-use parts and should be considered when installing a solid lifter or a solid roller camshaft. Simply screw directly into the oil gallery with no machine work.
Not Yet Reviewed
$27.95
Willy's Carburetor & Dyno Shop Restrictor Plates
Willy's 1 in. adjustable restrictor plates allow the racer to dial custom torque and horsepower curves to specific track conditions. Willy's restrictor plate is fully O-ringed and is made from CNC-machined billet aluminum. This plate has 18 turns of adjustment, ranging from 1.750 in. to 1.000 in.
( 2 )
$433.99
Holley Emulsion Jets
Holley emulsion jets are just what you need to fine-tune your carburetor for street or race. Threaded for easy installation and removal, Holley jets are manufactured to high tolerances for consistency.
Not Yet Reviewed
$18.66
Allstar Performance Water Outlet Restrictors
Control the flow with Allstar Performance water outlet restrictors. The flow of water to your radiator aids in cooling, and these value-packed kits contain three differently sized aluminum restrictors to limit the flow and meet your application needs. The rings are compatible with more than a hundred make/model vehicles. Get just the right stream of water with Allstar Performance water outlet restrictors.
Not Yet Reviewed
$7.99
Holley Emulsion Bleed Kits
Holley emulsion bleed kits are designed to fine tuning of your Holley HP Series 390 cfm 4-barrel carburetor. They include a plastic case with labeled compartments for easy identification. The emulsion bleed kits include the following sizes: * 10 blank emulsion jets to drill your own size * 10 emulsion jets size 0.020 in. * 10 emulsion jets size 0.031 in. * 10 emulsion jets size 0.040 in. * 10 emulsion jets size 0.046 in. * 10 emulsion jets size 0.052 in.
( 2 )
$204.95
Allstar Performance Radiator Hose Restrictors
Allstar Performance radiator hose restrictors stabilize water temperature and allow coolant to stay in the radiator longer for improved cooling. These aluminum funnel-shaped restrictors are easy to use. Just insert restrictors into lower radiator hoses and you should be good to go!
( 3 )
$19.99
AED Power Valve Restrictors
These tiny little items can make a big difference in the way that your carburetor runs. AED blank power valve restrictors are designed for the quick fine-tuning of your power valve. AED has the replacement components that you need for your carburetor.
( 4 )
$25.79
Milodon Water Outlet Restrictor Kits
Limiting the amount of coolant flow leaving the engine block lets you control the amount of heat absorbed by the coolant. Milodon water outlet restrictor kits include three plates with 5/8, 3/4, and 1 in. I.D. holes. They are mounted under the water outlet on the intake manifold.
( 5 )
$9.49
Milodon Oil Flow Restrictor Plugs
Don't let oil go to your head! Milodon oil flow restrictor plugs solve the common high performance engine problem of too much oil in the head area. They restrict approximately 75 percent of the oil to the top end of the engine for better lubrication and prevent oil wastage at the lifters (which will cause windage problems). This also keeps the sump better supplied with oil. These plugs install easily into the back of the block in place of the stock plugs. They're not for use with hydraulic lifters.
( 1 )
$14.95
Allstar Performance Carburetor Restrictor Plate Inserts
Allstar Performance carburetor restrictor plate inserts are designed for use with Allstar Performance governor 4-hole carburetor spacers. They are designed to restrict the airflow and fuel to help reduce power and wheel speed for maximum traction. The inserts are manufactured from durable aluminum and come in different inside diameters to help control your wheel speed. Allstar Performance carburetor restrictor plate inserts are available either 1/2 in. or 1 in. tall to fit your Allstar Performance governor spacer height.
( 1 )
$38.99
Allstar Performance Full Throttle Non-Restrictor Inserts
Allstar Performance full throttle non-restrictor aluminum inserts are used in place of restricting inserts, allowing full throttle operation without restriction. This is common practice when qualifying or when track conditions allow for more power. Allstar insert design offers a smoother transition over simply removing the restrictor inserts. .
Not Yet Reviewed
$38.99
Racing Automotive Group Water Outlet Restrictors
Racing Automotive Group water outlet restrictor kits allow you to limit the coolant flow leaving the engine in order to control the amount of heat absorbed by the coolant itself. Limit the flow with these three round aluminum plates with 5/8 in., 3/4 in., and 1 in. I.D. holes. Just mount the appropriate plate under the water outlet on the intake manifold for a simple temperature control solution. Restrictor kits are available for a wide range of year/make and engine applications from the 1950s and up.
Not Yet Reviewed
$9.99
AED Power Valve Restrictor Kits
For the quick fine-tuning of your power valve channel, AED offers these power valve restrictor kits. They offer precise, custom circuit enrichment and timing. These restrictor kits include a drill bit, tap, Allen wrench, and eight blank restrictors to improve your carburetor's performance.
( 1 )
$42.99
KRC Racing Aluminum Water Restrictors
KRC Racing aluminum water restrictors stabilize water temperature, and allow coolant to stay in the radiator longer for improved cooling. These aluminum funnel shaped restrictors are easy to use. Just insert restrictors into lower radiator hoses and you should be good to go!
( 1 )
$22.99
Allstar Performance Adjustable Base Plates
Allstar Performance adjustable base plates are 4-hole aluminum spacers with replaceable tapered inserts (sold separately). The plates are available in two thicknesses, and the different sizes of inserts can be quickly changed after the carb is removed. They will assist in governing the restriction of air/fuel entry and can help to slightly reduce power-preventing wheel spin.
( 2 )
$75.99
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$76.99
