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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 03-23-2007, 12:29 AM
  #1  
js89red
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hi, what is the cut off of a 5,0 1989???

and if I got at cut off do you think that can cause domage on my motor ... thanks
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Old 03-23-2007, 12:31 AM
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dimebag
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Default RE: cut off
cut off? like a rev limiter... not on a fox nope... mine has seen 7500[:@][:@][:@].
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Old 03-23-2007, 12:35 AM
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greenstreak9205
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not sayin that ur wrong but i was pretty sure that it was 6250rpm. i kno the stock tach is often off by a bit but thats a bit much to just be reading wrong. idk im prolly wrong
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Old 03-23-2007, 12:40 AM
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dimebag
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i hear that fuel might cut off then... but itll still rev...
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Old 03-23-2007, 12:52 AM
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greenstreak9205
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w/out fuel how does its make power to spin faster (more RPM)? im confused with that last comment. how is that possible?
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Old 03-23-2007, 02:06 AM
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Jeff 86 GT
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Default RE: cut off
There is no designated rpm like with a rev limiter. The spark is getting so close together between power strokes that itis breaking up.
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