| steve84GS TII |
09-13-07 09:57 PM |
Tough to say what will work good and what wont.
The EFI engines use check valves at the injectors to prevent the lines from draining and causing long term "no oil" situations when the engine restarts and the lines slowly refill.The EFI engines also have their oil injectors strategically placed so the oil gets distributed well.The injectors on the housings are obviously going to feed oil directly onto the apex seals.The injectors in the intake are directly upstream of the primary injectors,so the oil will be swept into the injectors fuel spray and mix well so complete lubrication of the rotor seals is obtained.The injectors also protrude into the intake path a little to ensure the oil doesnt just stick to the sides of the runners.
The carbed engines have a similar setup with the oil running down the side of the venturi so that when it drips,it will fall into the fuel spray exiting the bottom of the venturi and be mixed.They dont need any check valves since the ends of the lines are at the extreme top of the OMP system.They also dump ahead of the throttle plates,unlike the EFI engines,so the delivery isnt affected by engine vacuum.
I wouldnt trust the bare OMP lines simply dumping into a random spot in the intake.For assurance,Id try to duplicate the factory EFI setup,using the stock check valves/oil injectors and a location that is directly upstream of the fuel injectors.
Either that,or premix and forget the whole OMP system.If you do premix,just be sure your EFI system doesnt cut fuel injector pulsewidth 100% when decelerating.If you experience a long,drawn out high RPM decel (like coasting in-gear after a drag run) then your engine will spin several thousand times with no fuel injected, and no lubrication from the premix.
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