Manual Restrictor Plate
for Index and Nostalgia Drag Racing
. . . . . Your ET is my command
How does it work?
In principle, it's a restrictor plate just like NASCAR uses to control horse power and speed. But that's where the similarity ends. The ET Genie is ADJUSTABLE from wide full open down to less than 20% air flow.
Because it's installed below the carburetor, the throttle can be wide full open on every run. This allows the carburetor circuits to function properly without disturbed air flow patterns caused by the butterfly valves being partially closed. A nut on either end of the ET Genie is turned to increase or decrease air flow. This, of course, controls the horse power and your Elapsed Time.
Clockwise reduces air flow and HP
Counter clockwise increases air flow and HP.
(We used a cordless drill to show the process)