Mercury 454 Magnum MPI Tournament Ski, Руководство по установке

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Whipple Charger Installations Instructions for Mercury 454/502 Magnum Engines
3. Check cooling system water pressure. The cooling system must be able to operate efficiently.
Optimal performance and reliability will be gained if an external pick-up is installed for the Whipple
Intercooler water. To check the performance of your cooling system, install a 0-50psi. pressure
gauge on the water drain plug located on the bottom center of the block. The idle pressure may read
0-3psi. and full speed/RPM may read over 30psi. The minimum pressure allowed, for proper engine
cooling, is 30psi at WOT. 40psi should be the maximum, if exceeded, please contact Whipple
Industries. The reading should be obtained at high speed and high RPM. If the pressure is lower,
another water pickup must be installed. Consult with Whipple Industries for recommendations. The
Whipple intercooler will take water away from the engine if the water is teed from the stock system,
so block pressure must be checked before and after.
4. MEFI Engine management system. If your engine has a MEFI 1 ECM, your system must be updated
to a MEFI 3 or 4 system. Follow the wire diagram at the end of the manual for converting.
4. Supercharger By-pass system. The supercharger is installed with a by-pass system. This allows
the supercharger to operate at higher efficiency under vacuum operation. It is advised to verify the
operation of the bypass valve. At idle and low engine loads, the bypass will be open. At higher loads
(engine in boost) the bypass will be closed. As the throttle is opened quickly the bypass valve will
close momentarily. This verifies the bypass will close and is functioning.
454/502 MagnumTBI_A1R9 6