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Originally Posted by alecsammy
(Post 3467805)
The cam is out of a 502 mag Mpi, I talked with a cam manufacture yesterday he claims the exhaust of fuel system would hold me back. He said he could may a bigger cam but you would only gain 15 hp.The valves are 2.30 and 1.88.
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The fuel system might need some upgrading and there will be a limit to how much cam you can use before reversion becomes a problem but that 502 Mag MPI cam is really mild. I bet you could see a 50hp improvement with the right one.
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More than the cam being to small it can't pull the prop it still should be able to. Try different styles of props.
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Cam is too small and power falls off hard beyond 5000rpms. If anything, I would try a slightly bigger prop.
Also, whats the timing set at??? |
Just finished a cylinder leakage test, the exhaust valves leak bye 24 percent on number 1&2 cylinder 7&8 are 12 percent. All other are only 6 to 8 percent. Can these heads be the problem?
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