The Carburetor float cutters feature multiple valve angles

Posted by zjautopartsLee on February 26th, 2016

The Carburetor float cutters feature multiple valve angles that are proven to significantly improve airflow and power over a single angle or three-angle valve seat cutter. Mondello says his multi-angle cutters typically increase airflow 10 to 20 cfm by just adding and changing the angles on the valve seats.

However, Mondello urges caution and care when using a cutter that is designed for a certain application. “My exhaust seat cutters go from a primary seat into a full radius below that seat, but they’re only recommended for exhaust seats, not intake seats. A lot of guys will also use them to cut the intake valve seat because it shows an 8 to 10 cfm increase in airflow on a flow bench.

 But when you look at the actual airflow pattern on a wet flow bench, the profile that was developed for the exhaust seat causes bad fuel shear and turbulence in the valve bowl and seat area. That’s why I offer different profiles for the intake seats.”

Of course, putting a radius on the Valve seat is nothing new, and a lot of guys have been doing it for years because it increases airflow. But Mondello says bigger airflow numbers don’t necessarily translate into more power. It depends on what happens to the air/fuel mixture as it enters the combustion chamber.