What is an FCR carburetor?
Keihin FCR Carburetors are acknowledged as the leading carburetors in 4-stroke motorcycle racing thanks to their precise metering high flow, flat slide throttle design and adjustable accelerator pump. The Carb comes ready to bolt onto the bike’s stock airbox and intake manifold.
Why are flat slide carbs better?
Flat slides are known to be higher performance because there is less area in the slide region of the carb. The air can get across the slide quicker allowing for increased air flow earlier.
Why are lectron carbs so good?
The Lectron carbs are able to operate in a much wider range of applications, temperature, and elevation due to their fuel vaporization efficiencies. Changes to operate beyond the wide range are simple and easy to make with a screwdriver and adjusting the metering rod.
How do you drain a lectron carb?
Draining the float… There is less need to access the float on this carb as there are no jets hidden in there, however if you need to drain it for cleaning or removing water the easiest option is to tilt the carb to one side and loosen two of the float retaining screws and it will drain easily.
How to find the recommended carburetor size for an engine?
For example, let’s find the recommended carburetor size for an engine with a displacement of 302 cubic inches, a max speed of 7,500 RPM, and 80% volumetric efficiency. You might also like our engine horsepower and compression ratio calculators.
What kind of carburetor do I need for a 500 CFM engine?
Even with about a 10% cushion, a 500 CFM carburetor will handle this engine great. If you try this formula yourself, be honest with how much rpm the engine will see. You’d be better off with a carb smaller than needed rather than something oversized that can lead to poor drivability and performance.
What kind of carburetor do I need for a race engine?
Most rebuilt street engines with average bolt-ons have a volumetric efficiency of about 85%, while race engines can range from 95% up to 110%. Even with about a 10% cushion, a 500 CFM carburetor will handle this engine great.
What kind of carburetors do Holley and Edelbrock make?
We have rebuilt hundreds of thousands of carburetors since 1954. We carry carburetors for: American cars and trucks, import cars and trucks, antique cars, classic cars, muscle cars, boats, and industrial engines. Plus we also carry a full line of Holley and Edelbrock performance carburetors.