1981
Intake
-
HOLLEY CARBURETOR ONLY, 12A STREET PORT 465CFM RACING BEAT MODIFIED
Racing Beat Modified Holley Carburetor Only, 12A Street Port 465CFM Discontinued
Sorry, this item has been discontinued by the Manufacturer
We offer the extremely popular Racing Beat-modified High Performance Holley carburetor – 465cfm body – for the 1976-85 12A Street-Ported engine application. This carburetor body is the same modified component that is included in our complete 1976-85 12A Street-Ported engine kit. The optional air cleaner assembly and manifold shown are not included, but are available with the complete kit, or as separate items.
Each carburetor is modified by Racing Beat to maximize the performance of a specific engine application. Every carburetor is disassembled, modified and reworked by a Racing Beat carburetor technician. These modifications are the results of countless hours of engine dyno testing and real-world testing. These extensive modifications are undertaken to increase the airflow to meet the demands of the rotary engine.
This carburetor requires the use of a high performance fuel pump delivering 6 psi @ 20 gph, we suggest the use of the Mallory 4070M unit
SKU: 16636 -
HOLLEY CARBURETOR ONLY, 13B 4 PORT STREET PORT 600 CFM RACING BEAT MODIFIED
Racing Beat Modified Holley Carburetor Only, Street port 13B 4-Port (uses 600 cfm carb.)
Racing Beat’s Holley Intake Kit for the 1974-85* 13B 4-Port Street Port engine has proven over the years to be an extremely reliable carburetor upgrade, with very “streetable” engine smoothness and drivability characteristics. We offer the carburetor included with this kit seperately for those looking for a replacment for the orignal Racing Beat-modified unit. The carburetor we supply for the 13B 4-Port Street Port applications features a 600 CFM model utilizing a mechanical choke and mechanical secondaries. As supplied, this carburetor does not include the mounting and attachment hardware that was originally supplied with the complete kit.
The heart of each intake system is a performance-proven Holley carburetor. Depending on the requirements of each specific application, the carburetor is disassembled by Racing Beat’s carburetor technicians then reworked, retuned, and reconfigured specifically for use with a designated rotary engine application. This process is not a simple “re-jetting” project, but a complex series of steps requiring machining, drilling and reconfiguring of the main and metering bodies, adjustment of the float bowls, and complete replacement of all jets.
SKU: 16630 -
HOLLEY CARBURETOR ONLY, 13B BRIDGE PORT 650 RACING BEAT-MODIFIED
Racing Beat Modified Holley Carburetor Only Bridgeport 13B (uses 650 cfm carb.)
We offer the extremely popular Racing Beat-modified High Performance Holley carburetor for the 1974-85 13B 4-Port Bridge-Ported engine application. This 650 cfm – Double Pumper with mechanical secondaries – carburetor is the same modified component that is included in our complete 1974-85 13B 4-Port Bridge-Port Kit. The optional air cleaner assembly, fuel line, and manifold shown are not included, but are available with the complete kit, or as separate items.
Each carburetor is modified by Racing Beat to maximize the performance of a specific engine application. Every carburetor is disassembled, modified and reworked by a Racing Beat carburetor technician. These modifications are the results of countless hours of engine dyno testing and real-world testing. These extensive modifications are undertaken to increase the airflow to meet the demands of the rotary engine.
This carburetor requires the use of a high performance fuel pump delivering 6 psi @ 20 gph, we suggest the use of the Mallory 4070M unit.
For optimum performance, combine this Holley carburetor with a matched Racing Beat intake manifold and the Holley Float Bowl Fuel Line.
SKU: 16639 -
HOLLEY MOP FITTING
Holley MOP Fitting
5/16 24 Thread x 3/16 hose
Goes into float level plug on a Holley.SKU: 91033 -
HOLLEY THROTTLE CABLE BRACKET
Holley, Throttle Cable Bracket
If you have a 6 port, refer to Part Number 18061.SKU: 91100 -
HOSE VAC BRAKE BOOST, FB MANIFOLD-PIPE—NLA—
HOSE VAC BRAKE BOOST, FB MANIFOLD-PIPE
Sorry, this item has been discontinued by Mazda.
Intake Manifold Brake Booster HoseSKU: 43-8360-8871 Manufacturer SKU: 8871-43-836 -
HOSE VACUUM 10MM, STANDARD COLORS
10mm Vacuum Hose, Sold by the foot
Please choose color.SKU: VACHOSE-10-STD $7.40
Select options This product has multiple variants. The options may be chosen on the product page -
HOSE VACUUM 3.5MM, STANDARD COLORS
3.5mm Vacuum Hose, Sold by the foot.
Please choose color.SKU: VACHOSE-3.5-STD $3.92
Select options This product has multiple variants. The options may be chosen on the product page -
HOSE VACUUM 6.0MM, STANDARD COLORS
6.0mm Vacuum Hose, Sold by the Foot.
Please Choose ColorSKU: VACHOSE-6.0-STD $4.20
Select options This product has multiple variants. The options may be chosen on the product page -
HOSE VACUUM 8.0MM, STANDARD COLORS
8.0mm Vacuum Hose. Sold by the foot
Please choose color.SKU: VACHOSE-8.0-STD $5.80
Select options This product has multiple variants. The options may be chosen on the product page -
HOSE VACUUM 81-85, MANIFOLD TO ANTIBURN
Vacuum Hose 81-85, Manifold To Antiburn
Many customers have spent many hundreds of dollars on wrong diagnosis/unnecessary repairs at other shops because of this hose. Due to it’s close proximity to the exhaust manifold, the hose tends to get soft and split. It goes from the back of the carb down to a tube sticking out of the back side of the intake manifold.SKU: 13-7560-N201 Manufacturer SKU: N201-13-756 -
HPS Performance Air Filter 3.5″ ID, 6″ Element Length, 7.75″ Overall Length, Clamp On 74-11
HPS Performance Air Filter 3.5″ ID, 6″ Element Length, 7.75″ Overall Length, Clamp On 74-11
SKU: HPS-4298 -
HPS Performance Air Filter 4″ ID, 6″ Element Length, 7.75″ Overall Length, Clamp On
HPS Performance Air Filter 4″ ID, 6″ Element Length, 7.75″ Overall Length, Clamp On
SKU: HPS-4300 -
INTAKE MANIFOLD GASKET, 12A 81-85 and 74-75
Mazda OEM intake manifold gasket for 74-75 and 81-85 12A’s
We recommend replacing the 2 water jacket O-rings whenever you have the manifold off.
SKU: 13-111B-1881 Manufacturer SKU: 1881-13-111B -
INTAKE MANIFOLD STUD, MANIFOLD TO ENGINE, ALL IDA MANIFOLDS
Intake Manifold Stud, Manifold to Engine. All IDA Manifolds
30mmSee our Weber Suggested parts list.
SKU: 250-8-30 Manufacturer SKU: 250-8-30 -
MANIFOLD HOLLEY, 74-85 12A BRIDGEPORT
Holley Manifold, 74-85 12A Bridgeport (74-85)
The Racing Beat-designed intake manifold (1-9/16″ throttle bore diameter), for the 1971-85 12A Bridge-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake manifolds have proven themselves in a variety of street and race applications.
All of Racing Beat’s manifolds for Holley carburetor applications are sand-cast by a local foundries and delivered to our in-house production shop for all machining and surface finishing processes. Select manifolds are then hand-ported to match a specific intake port configuration for an intended engine application. Further machining is then undertaken to match the base-plate surface to the Holley carburetor base. These critical machining steps ensure a positive fitment between both the engine surface and the carburetor base. Every manifold is then surface finished using a ball-burnishing process that enhances the final appearance of the aluminum material. Once these labor-intensive processes have been completed these manifolds look as good as they perform!
This manifold includes does not include a vacuum source for power brakes. If needed, an engine-to-manifold gasket, and/or Holley base gasket are available separately.
SKU: 16466 -
MANIFOLD HOLLEY, 79-85 12A
Holley Manifold, 79-85 12A Stock port
The Racing Beat-designed intake manifold for the 1979-85 12A Stock and Street-ported engine is ideally suited to meet the performance requirements of the Holley carburetor. Designed by Chief Engineer/Engine Builder Jim Mederer, these cast aluminum intake manifolds have proven themselves in a variety of street and race applications.
All of Racing Beat’s rotary engine manifolds for Holley carburetor applications are sand-cast by a local foundry and delivered to our in-house production shop for all machining and surface finishing processes. All Racing Beat intake manifolds are hand-ported to match a specific intake port configuration for the intended engine application. Further machining is then undertaken to match the base-plate surface to the Holley carburetor base. These critical machining steps ensure a positive fitment between both the engine surface and the carburetor base. Every intake manifold is then surface finished using a ball-burnishing process that enhances the final appearance of the aluminum material. Once these labor-intensive processes have been completed these manifolds look as good as they perform!
This manifold includes a vacuum source for power brakes. If needed, an engine-to-manifold gasket (79-80) or (81-85), and/or Holley base gasket are available separately.
SKU: 16464 -
PURGE VALVE, 79-92—NLA—
Purge Valve, 79-92
Sorry, this item has been discontinued by Mazda
SKU: 20-950A-1480 Manufacturer SKU: 1480-20-950A -
SHUTTER VALVE BUTTERFLY SCREW, EACH
Shutter Valve Butterfly Screw, EACH
SKU: 30-3080-9983 Manufacturer SKU: 9983-30-308