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

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Old Aug 28, 2014 | 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 Aug 28, 2014 | 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 Aug 28, 2014 | 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 Aug 28, 2014 | 07:30 PM
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If you are on premix only i wouldn't recommend cutting fuel.
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Old Aug 28, 2014 | 08:14 PM
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Jetlude--I'm using hard cut.
(Lube is premix+OMP, fwiw.)
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Old Aug 29, 2014 | 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 Aug 29, 2014 | 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 Aug 30, 2014 | 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 Aug 31, 2014 | 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 Sep 2, 2014 | 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 Sep 3, 2014 | 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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