What did they do differt to the 4.6 V8 in the 2005 Mustang to get the horse power up from the 2001 Mustang 4.6

Question:
what did ford do to make the 2005 Mustang with the 4.6 V8 to have more horsepower than the 2001 Mustang 4.6 V8 thanks

Answers:

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I know that between the 98 and 99 v6 they increase hp just by playing with fuel intake so it's probable that it's the same deal with the 8's.

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may have also tweaked the gear ratio. I'm not a big car nut but...I would think that may have been done.

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Better flowing, 3-valve heads.

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And, uh, kdog...WRONG, the 4.6L had 3 valve heads for ALL vehicles it was in starting in '05. Get your facts straight. Don't believe me? Go look at some Ford literature.

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There also is no 5.4L available in the Mustang. The only Mustang that had a 5.4L in it was the '00 Cobra R.

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Gawd, this place is full of misinformation.

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I think they changed the intake and made the exhaust larger. One guy said they used 3 valve heads. That is not correct. Only 5.4L V8 uses 3 valve heads and they didn't show up in the mustangs until the new '05 models.

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3 valve heads and more compression

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From what I understand.. better computer processing, better exhaust/intake and 3 valves per cylinder in the 4.6 like the 5.4s have in the f-series...

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also only the mustang and explorer from what I know got the 3 valve 4.6 ... The Crown victoria and f-150 still share 2 valve motors

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