Stock fuel pressure

Mustang Forums Mustang Classifieds Photo Gallery Calendars Search Live Chat Contact MF Sponsors
Mustang Recalls Mustang TSB's News Timeslips Timeline Wallpaper Member List Register Login

Stock fuel pressure

Printable Version

Mustang Forum >> Ford Mustang Tech >> 5.0 Mustang >> Stock fuel pressure

Page: [1]

Message

<< Older Topic Newer Topic >>

Stock fuel pressure - 11/16/2005 1:04:36 AM

zex92mustang

Posts: 149
Joined: 11/15/2005
Status: offline

what should i read for fuel pressure at idle with stock FPR and pump, and what should it read with vac off the FPR. thanks

Post #: 1

RE: Stock fuel pressure - 11/16/2005 6:56:25 AM

stanglx2002

Posts: 5140
Joined: 2/15/2005
Status: offline

39 psi

_____________________________

88' 5.4L Mustang GT (with a little work done to it)

(in reply to zex92mustang)

Post #: 2

RE: Stock fuel pressure - 11/16/2005 1:50:54 PM

zex92mustang

Posts: 149
Joined: 11/15/2005
Status: offline

is that at idle or with no vac

(in reply to stanglx2002)

Post #: 3

RE: Stock fuel pressure - 11/16/2005 7:20:37 PM

zex92mustang

Posts: 149
Joined: 11/15/2005
Status: offline

anyone anyone

(in reply to zex92mustang)

Post #: 4

RE: Stock fuel pressure - 11/16/2005 9:16:37 PM

stanglx2002

Posts: 5140
Joined: 2/15/2005
Status: offline

no vac

_____________________________

88' 5.4L Mustang GT (with a little work done to it)

(in reply to zex92mustang)

Post #: 5

RE: Stock fuel pressure - 11/16/2005 9:27:44 PM

zex92mustang

Posts: 149
Joined: 11/15/2005
Status: offline

thanks for the reply with no vac im at 50, do you think its my FPR its a stock one

(in reply to stanglx2002)

Post #: 6

RE: Stock fuel pressure - 11/16/2005 9:31:01 PM

stanglx2002

Posts: 5140
Joined: 2/15/2005
Status: offline

thats to high it needs to be lower

_____________________________

88' 5.4L Mustang GT (with a little work done to it)

(in reply to zex92mustang)

Post #: 7

RE: Stock fuel pressure - 11/16/2005 9:32:58 PM

zex92mustang

Posts: 149
Joined: 11/15/2005
Status: offline

do you know what it should be at idle

(in reply to stanglx2002)

Post #: 8

RE: Stock fuel pressure - 11/16/2005 10:22:02 PM

stanglx2002

Posts: 5140
Joined: 2/15/2005
Status: offline

you set it at WOT though

idle should be around 32

_____________________________

88' 5.4L Mustang GT (with a little work done to it)

(in reply to zex92mustang)

Post #: 9

RE: Stock fuel pressure - 11/16/2005 10:40:35 PM

silver91gt

Posts: 2969
Joined: 3/8/2005
Status: offline

taking the vacum line off it is the same as wot.
at wot there is no vacum.

_____________________________

novi powered 347 11.6@121mph
with a little spray 10.7@130mph

(in reply to stanglx2002)

Post #: 10

RE: Stock fuel pressure - 12/20/2005 3:53:15 PM

ZeroSk8er823

Posts: 49
Joined: 4/7/2005
Status: offline

Ive been having problems with my car as I put in a previous post with my car missing/stumbling pretty much through most of the driving range especially the lower rpms. My fuel pressure is about 46psi with no vac and with the vac its about 36psi, does this sound right? Or is it too high?

(in reply to silver91gt)

Post #: 11

RE: Stock fuel pressure - 12/20/2005 4:54:00 PM

Tims 88GT