Fuel rail pressure?

obdnanr · March 8th, 2008, 03:50 PM

Anyone with F/I know what ur fuel rail pressure is?

Trick Tuners · March 8th, 2008, 05:28 PM

Rail absolute pressure (RAP) is 40psi + boost or - vacuum
At 20in hg (=~ -10 psi) its 30.
At 10psi boost its 50.

ChrisJ · March 8th, 2008, 05:30 PM

Mine idles at about 30...

In boost I have seen it hit 60...

itschristorres8 · March 8th, 2008, 05:46 PM

generally during cruising and idling fuel pressure should stay as stock is just like your vacuum
if not then theres something wrong on the tuners end

tsp_2177 · March 8th, 2008, 06:01 PM

sorry i have no idea
but Chris pm sent

obdnanr · March 8th, 2008, 07:15 PM

fuel rail pressure right?? cause im wondering it the low fuel pressure rail is why my car seems to lean out when i WOT sometimes

ChrisJ · March 9th, 2008, 03:31 PM

Maybe you are running out of fuel pump?

itschristorres8 · March 9th, 2008, 03:43 PM

Originally Posted by ChrisJ

Maybe you are running out of fuel pump?

with the stock fuel pump i wouldnt doubt it
they top out at about 300rwhp i believe

ChrisJ · March 9th, 2008, 03:45 PM

Originally Posted by itschristorres8

with the stock fuel pump i wouldnt doubt it
they top out at about 300rwhp i believe

if he is on stock pump then that is what I would put my money on...

ESG-642T · March 9th, 2008, 07:25 PM

Stock PUMP!

Sounds like the culprit.

obdnanr · March 9th, 2008, 09:12 PM

well when the dude was tuning it my shit was at like 60 psi

March 8th, 2008, 03:50 PM	#1
obdnanr Hardcore Enthusiast 2003 v6 340/373 - yay for belts Join Date: Nov 2007 Location: around Posts: 1,766 iTrader: 0 reviews	Fuel rail pressure? Anyone with F/I know what ur fuel rail pressure is? __________________ 4.2L, gforce t5, 8.8, d1sc, other shit. stang is down

March 8th, 2008, 05:28 PM	#2
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	Rail absolute pressure (RAP) is 40psi + boost or - vacuum At 20in hg (=~ -10 psi) its 30. At 10psi boost its 50. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

March 8th, 2008, 05:30 PM	#3
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 36,743 Blog Entries: 4 iTrader: 9 reviews	Mine idles at about 30... In boost I have seen it hit 60... __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

March 8th, 2008, 05:46 PM	#4
itschristorres8 Banned 00 V6 & 09 GT 13.37@104.4mph--BONE stock GT Join Date: Aug 2006 Location: south florida Posts: 15,859 iTrader: 2 reviews	generally during cruising and idling fuel pressure should stay as stock is just like your vacuum if not then theres something wrong on the tuners end __________________ [SIGPIC][/SIGPIC] Acmillr loves me

March 8th, 2008, 06:01 PM	#5
tsp_2177 Hardcore Enthusiast 2005 Civic GAY! Join Date: Mar 2007 Location: Alabama Posts: 1,875 iTrader: 0 reviews	sorry i have no idea but Chris pm sent __________________ slow car member twinky times two the stangs gone pypes mid muffler catback with their X-pipe In the top 20 cool peoples list on MM potsticker in training

March 8th, 2008, 07:15 PM	#6
obdnanr Hardcore Enthusiast 2003 v6 340/373 - yay for belts Join Date: Nov 2007 Location: around Posts: 1,766 iTrader: 0 reviews	fuel rail pressure right?? cause im wondering it the low fuel pressure rail is why my car seems to lean out when i WOT sometimes __________________ 4.2L, gforce t5, 8.8, d1sc, other shit. stang is down

March 9th, 2008, 03:31 PM	#7
ChrisJ RLY SRS Join Date: Aug 2005 Location: Ft. Meade, MD Posts: 36,743 Blog Entries: 4 iTrader: 9 reviews	Maybe you are running out of fuel pump? __________________ 2008 Acura TL Type-S - 2008 EB Ford Expedition - 2002 Boosted GT - Sold Facebook Google+

March 9th, 2008, 07:25 PM	#10
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,207 iTrader: 0 reviews	Stock PUMP! Sounds like the culprit. __________________ Hi, You can call me Kyle

March 9th, 2008, 09:12 PM	#11
obdnanr Hardcore Enthusiast 2003 v6 340/373 - yay for belts Join Date: Nov 2007 Location: around Posts: 1,766 iTrader: 0 reviews	well when the dude was tuning it my shit was at like 60 psi __________________ 4.2L, gforce t5, 8.8, d1sc, other shit. stang is down

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