what are the max R.P.M.s for a stock 4.6 liter
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Old November 12th, 2010, 12:15 AM   #1
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what are the max R.P.M.s for a stock 4.6 liter


k so i tried the search and it came up empty so i ask you knowledgeable people.I have slightly better than stock 2000 gt and am getting a tuner and i want to know how high i can turn up the rev limiter and not blow it up.Or has ford got it pretty much perfect.Thank you.
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Old November 12th, 2010, 12:20 AM   #2
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fords got it pretty much on the ball. your still n/a so most of your power will drop past 5500 rpm's anyways.
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Old November 12th, 2010, 12:20 AM   #3
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well the max HP is at 5250 rpms so thats where I would shift...
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Old November 12th, 2010, 12:27 AM   #4
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im not sure anyone knows that answer for sure, you should pull your limiter off and stomp on it till it makes a funny noise, then back off a bit. im jk! stock parts and valve train can handle about 6500 rpm's safely. now whether or not you make power thats a diff story
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Old November 12th, 2010, 12:28 AM   #5
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you can take it up to 6000 rpms.
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Old November 12th, 2010, 12:36 AM   #6
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k thanks guys.I am glad this forum is here.I woulda turned er up 500 rpm and spun something.Thanks guys
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Old November 12th, 2010, 12:39 AM   #7
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like i said you can turn 6500 rpm's but you dont make much power up there.
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Old November 12th, 2010, 01:23 AM   #8
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6000.

You can go higher but if it makes a noise that sounds like a tick or a knock afterward.
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Old November 12th, 2010, 01:45 AM   #9
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i pulled my stock motor 6500 rpm's all day with a blower and it took it fine. dont confuse the fact that my motor blew on me because of rpm's. it blew bc i swaped my pulley from a 3.6 to a 3.125 with out a tune. sure it sounds dumb but i had finished my new motor and i was not about to pull a perfectly good motor out of my car.
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Old November 12th, 2010, 01:48 AM   #10
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Think of it this way though.

When i blew mine at 6300

When she went...she went hard

12psi non-ic @ 142mph on a npi 4.6.... poor little sucker had it coming
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