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Old January 11th, 2012, 07:32 AM   #1
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max rpms


Hey, i was just wondering what the max rpms are i should shift with my mustang, iv never gone above 4700 with it yet but i know shes got more in her just dont want to end up hurting it. It has a 79 motor in it and a t5 transmission, i think everything else should be in my sig. thanks for any help and sorry for the noob question lol.
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Old January 11th, 2012, 10:33 AM   #2
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I personally have never taken mine above 4000. Friend of mine takes his to 5500 when racing it but I baby mine only because she is still pretty cream puffy (minus paint)
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Old January 11th, 2012, 12:05 PM   #3
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I don't know about the early fox body Mustangs but I know the later 5.0L engines run out of power around 5k so I would shift at around 5200rpm in a race situation.
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Old January 11th, 2012, 01:17 PM   #4
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A 79 motor? Keep shifting at 4700. You're fine...just gonna fall flat on its face anywhere above 5,000. Plus you'll wear springs faster for no gain.
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Old January 11th, 2012, 09:09 PM   #5
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My tach is way off my shift point is 6700 lol. Time to go autometer.
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Old January 12th, 2012, 08:39 PM   #6
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ok thanks everyone, ill just keep doin what im doing. i might also want a tach not to sure how accurate the stock one is anymore lol.
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Old January 12th, 2012, 10:48 PM   #7
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Stock ones are garbage lol. Im gonna pick up an MSD 6AL soon and grab an Autometer tach.
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Please dear God, protect my ride
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