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Should I be using fuel cut for RPM limiter on my 500wrhp Fd?

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Old 08-28-14, 02:10 PM
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Should I be using fuel cut for RPM limiter on my 500wrhp Fd?
Did some research and found some for and against. I've been using fuel cut as opposed to ignition cut. Is this recommended?
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Old 08-28-14, 02:40 PM
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It works for me; I like the fuel cut method--it feels cleaner and less ragged. I've been flat shifting against this type of rev limiter for years with no problems whatsoever.
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Old 08-28-14, 05:31 PM
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Are you using hard cut or soft cut? I am using hard cut
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Old 08-28-14, 07:30 PM
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If you are on premix only i wouldn't recommend cutting fuel.
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Old 08-28-14, 08:14 PM
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Jetlude--I'm using hard cut.
(Lube is premix+OMP, fwiw.)
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Old 08-29-14, 10:40 PM
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Originally Posted by vrx8
If you are on premix only i wouldn't recommend cutting fuel.
lol what do you think is happening during decel fuel cut

op, make sure your injector phase is set right, or you could cause a lean condition
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Old 08-29-14, 10:57 PM
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Originally Posted by gxl90rx7

op, make sure your injector phase is set right, or you could cause a lean condition
Please explain injector phase.
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Old 08-30-14, 10:55 AM
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Originally Posted by gxl90rx7
lol what do you think is happening during decel fuel cut

op, make sure your injector phase is set right, or you could cause a lean condition
For me still spraying fuel becuse I dont cut fuel on decel.
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Old 08-31-14, 09:04 PM
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Originally Posted by vrx8
For me still spraying fuel becuse I dont cut fuel on decel.
This.
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Old 09-02-14, 03:42 PM
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Injector phase. Assuring that each spray of fuel is fully drawn in by one intake cycle. Not over lapping. If tgey are overlapping, you can still have good afrs. However, when you start pulling individual pulses, it leaves a partial pulse to be drawn in, thus a lean condition.
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Old 09-03-14, 09:58 AM
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Originally Posted by Monkman33
Injector phase. Assuring that each spray of fuel is fully drawn in by one intake cycle. Not over lapping. If tgey are overlapping, you can still have good afrs. However, when you start pulling individual pulses, it leaves a partial pulse to be drawn in, thus a lean condition.
Ok, I just need to find this setting in the haltech.
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