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It was talked about quite a lot on the Seattle broadcast. I think that was the first time that they used it. Medlin (crewchief, not the driver) said at the time that so far it hadn't hurt & they hoped it would prove to be a better deal. There was a good discussion over on Nitroland a while back about the differences between, at that time, the 3 hole vs the 4 hole injector. Former "Mater" Frank Oglesby (who owns a fuel & air flow business) said that he thought that there probably was an advantage to the 4 hole design. The reason that he gave was that the 4 "holer" allowed the incoming air to be equally divided so that 1/2 would go down one side of the blower & allow the other 1/2 to go down the other side. That same reasoning would hold true for the 2 "holer". With the 3 hole design the center opening was allowing air to enter the blower case above the area where the rotors were spinning upward & possibly interfering with airflow efficiency. There is no difference in the amount of air entering the engine as all injectors in the fuel classes, whether they be 2, 3 or 4 hole designs, are limited by the rules & cannot excede 65 square inches. Made sense to me & maybe that's what John Medlin is thinking.
Hope this helps..........."HIP"
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