PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Fuel cut vs Spark cut

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Old Apr 15, 2023 | 05:32 PM
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Default Fuel cut vs Spark cut

I am curious as to what some of you other tuners use, and why. I'm not trying to sway anyone's views. I was taught a specific way at Holley which made sense, but recently seen the other method used by, to me, one of the most respected tuners in the game.
Do you use one method for a specific control, and the other for something else? I guess I'm more interested in your "Why" . Thanks guys
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Old Apr 15, 2023 | 09:37 PM
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Originally Posted by rpturbo
I am curious as to what some of you other tuners use, and why. I'm not trying to sway anyone's views. I was taught a specific way at Holley which made sense, but recently seen the other method used by, to me, one of the most respected tuners in the game.
Do you use one method for a specific control, and the other for something else? I guess I'm more interested in your "Why" . Thanks guys
They both have specific uses, although spark cut has many more uses than fuel cut. However, if running a setup with catalytic converters, you can't make proper use of spark cut limiters without melting the cats. This kind of like asking if you should use a phillips or flathead screwdriver.
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Old Apr 16, 2023 | 10:03 AM
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Converters, well there's a part that never even crossed my mind. I've never put a tune in anything with a cat. Thanks for that info, yeah I would imagine you could cook one of those fairly easily.
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