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Repurposing fuel injectors as exhaust water injectors for valve life

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Doggzilla

Well-Known Member
Joined
Jun 2, 2013
Messages
2,352
Location
Everywhere USA
Anyone ever seen any kind of exhaust injection to cool down exhaust valves for higher performance?

Was considering putting a motorcycle turbo on an industrial liquid cooled 18hp engine, but the exhaust valve temps concern me the most.

It would not be timed, it would just have a gallon reservoir and spray continuously at about 2-3gph during full power climbs, so it would last several flights between fills.

As the exhaust would clearly blow the opposite direction it would need to spray when closed in order to get on the valves at all.
 
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