Injector has three 3.68" or 4.437" butterflies that are anodized red, blue, black or purple at no additional cost and ten 1/8" NPT nozzle holes. One unique feature of this injector is it has a radiused billet inlet to help the air flow smoothly into the injector as where other injectors are flat across the front creating turbulence to the incoming air. Another nice touch with this injector is it has a billet bolt on front face plate allowing different size butterflies for different applications. Inside opening is ten inches to match most of today's blower openings, overall injector height is 8.750" and from injector mounting surface to butterfly centerline is 6.00". The injector is sold as in the pictures with shaft, stops,arms and butterflies.
RBS can supply all the necessary parts you might need for the injector such as throttle cable brackets, airbleeds, throttle cables, or any other parts for the injector. This injector fits roots blowers 6-71 thru 18-71.
Injector is set up to be used on a Bird catcher opening with 13.250" on center bolt pattern, weights fourteen pounds ready to run and thirteen pounds bare. The front billet face plate can be ordered polished or black anodized for an additional $65.00 and the butterflies are available in different colors all costing the same price as above. Square inch area of injector butterflies is 45 inches with the 4.437" butterflies.
The racer can now also have a powder coated injector housing for a an additional $135.00 with color of there choice. Blower in the pictures is sold separate.
First picture is 4.437" butterfly injector, second picture is 3.368" butterfly injector.