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Old 10-08-2015, 07:49 PM   #1
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99 mustang high milage

I have a 99 mustang v6 250000 miles and i want to add mods but i dont know what to do to the engine be for i do add coldair and other things
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Old 10-08-2015, 09:57 PM   #2
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Full tune up> mods
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Old 10-08-2015, 10:13 PM   #3
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Originally Posted by 99mustangkid View Post
i have a 99 mustang v6 250000 miles and i want to add mods but i dont know what to do to the engine be for i do add coldair and other things

you might want to rebuild her
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Old 10-08-2015, 11:13 PM   #4
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I'd do a rebuild to be safe.
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Old 10-09-2015, 12:51 PM   #5
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Seriously, that is a lot of miles. Any performance mods would probably grenade the motor.
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Old 10-09-2015, 01:46 PM   #6
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I modded my 3.8 at 350,000 miles (Green One). I also had it dyno tuned several times. It makes more HP than any other I have seen documented. It was strong when i got it, I took care of it very well ever since.
What I did was:
Change fluids, full PM. Differential fluid-Amsoil Severe Gear, changed it with cheap fluid first until i saw clear fluid come back out. Transmission fluid (T5 Manual) Mobil1 ATF, Motorcraft copper plugs (Or NGK), wires, coils. fuel filter, air filter, ect....
MODS: 3.73 Ford Racing gears, short throw shifter (MGW only), UD Pulleys, CAI, True dual exhaust, dyno tune.
The new 3.73 or 4.10 gears are the best bang for the buck.
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Old 10-09-2015, 02:24 PM   #7
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Mileage does not mean a whole lot. Mechanical condition does, though.


Basic mods would be fine. The 3.8 is a solid engine as far as durability of the rotating assembly goes. Just be careful about adding things that add stress to the other parts, like a bigger cam or drag radials
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Old 10-09-2015, 02:36 PM   #8
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Do you know the service history of the engine before you got the car?
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Old 10-23-2015, 07:38 AM   #9
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My sister has a 96 GT with 350k on it. We are going to do a 04 engine swap.


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Old 10-23-2015, 08:48 AM   #10
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Is this a spoof account? I can IP check you know...




If serious, do a tune up and drive it till it blows up. Or sell it and buy something newer or with more power already. Preferably both.
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Old 10-23-2015, 10:21 AM   #11
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Me a spoof account? Why do you say that?


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Old 10-23-2015, 10:26 AM   #12
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A 2004 4.6L with less miles and more hp why is that a bad idea?


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