DA: If you put a smaller fuel pump on the engine all it will do is pull the motor down in the middle of the course. What happens is that as the motor slows down because the clutch is pulling it down, the fuel pump slows down, too. You’d have horrendous heat conditions out in the middle of the course because there’d be less fuel in the motor to cool things down.
Right now the guys have those slide valves in the fuel system to put more and more fuel into the motor as it slows down. When the motor starts coming back up again in rpm they start bleeding that fuel back off again because the motor starts losing Volumetric Efficiency. That’s why you’ve got to have a pump that’s big and flows a lot of fuel. Without that big pump it would be tremendously hard on the motor, and that means more parts destruction and failures of bearings, rods and pistons. It sounds like a simplistic solution, but ultimately it would end up costing more in parts to do that.