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Old 12-03-2013, 06:26 PM
5mall5nail5 5mall5nail5 is offline
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Join Date: May 2010
Posts: 31
Default Fuel cut rev limiter w/ HFS6

Hi Richard/All -

My ECU now supports a staged rev limited with fuel and spark cut. With just spark cut my engine wants to continue to build boost when the limiter sets in because of the fuel entering the hot manifold and igniting.

I am wanting to run a fuel and spark cut limiter but am nervous because of the methanol injection. I am running 50:50 water:methanol direct port with check valves from Aquamist. I have the (6) .5 or .6mm jets one per cylinder (I think .6mm).

If I cut fuel but keep spark, or cut fuel and spark, do I have to worry about the water/methanol mixture being enough volume per runner/cylinder to ignite/pre-ignite? Again, this is .6mm direct port on a 2.8L 6 cylinder engine running 50:50 water methanol.

Thanks!
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