What is PI?
05-06-2005, 04:55 PM
#3
Retired MF Moderator
Join Date: Apr 2004
Location: I live in Canada, eh
Posts: 7,156
RE: What is PI?
Actually it stand for "Performance Improved" or "Power Improved".
It's intake, heads and cams.
For the 99 model year, Ford improved the design of the 4.6 engine because the heads did not flow well on the 96-98 version. The "old" 4.6 was rated at 225 crank HP and the PI design brought it up to 260.
It's intake, heads and cams.
For the 99 model year, Ford improved the design of the 4.6 engine because the heads did not flow well on the 96-98 version. The "old" 4.6 was rated at 225 crank HP and the PI design brought it up to 260.
05-06-2005, 06:40 PM
#4
Gentleman's Relish
Join Date: Feb 2005
Location: AZ
Posts: 13,090
RE: What is PI?
ORIGINAL: MikeHawke
Actually it stand for "Performance Improved" or "Power Improved".
It's intake, heads and cams.
For the 99 model year, Ford improved the design of the 4.6 engine because the heads did not flow well on the 96-98 version. The "old" 4.6 was rated at 225 crank HP and the PI design brought it up to 260.
Actually it stand for "Performance Improved" or "Power Improved".
It's intake, heads and cams.
For the 99 model year, Ford improved the design of the 4.6 engine because the heads did not flow well on the 96-98 version. The "old" 4.6 was rated at 225 crank HP and the PI design brought it up to 260.
