Thread: fuel pressure

+ Reply To Thread

Posts: 1-10 of 10

Search Thread

2012-03-19 00:43:18

ga16eats

neew kid on the block

Join Date: 2011-02-07
Location: St.Petersburg FL
Posts: 2,250
Trader Score: 4 (100%)

fuel pressure

is 55 psi considered high on a stock fuel pump?

0 Likes

Be the first to like this post.

b13. Trashed.

Reply Reply With Quote

2012-03-22 23:26:10

Teal97

Member

Join Date: 2007-12-13
Location:
Posts: 1,303
Trader Score: 9 (100%)

since no one else will touch this.....

the stock fuel pressure is 3 bar. 1bar=14.7psi. 3x14.7=44.1
a stock fuel pump can support higher than 3 bar. so what is it you need to know?
hope this helps.

sent from Orcas Island, Wa.

Last edited by Teal97 on 2012-03-22 at 23-29-40.

0 Likes

Be the first to like this post.

AccountKiller

Reply Reply With Quote

2012-03-23 13:55:44

ivanorcan

Member

Join Date: 2009-10-21
Location: Alajuela, Costa Rica
Posts: 256
Trader Score: 1 (100%)

I dont know if 55 is to high, but im using 47psi and had no problems with the stock fuel pump.

0 Likes

Be the first to like this post.

1996 Nissan 200sx SER
3" WAI + K&N Filter, 20V Header, 3" Exhaust + 3" Glasspack +3" Dynomax Ultraflow silencer, SR20VE, Aeromotive FPR, 179whp & 146lb-ft. Wilwood 11" Brakes and SS Brake Lines. Front and Rear Strut Bars, KYB AGX+Road Magnet Springs, Rear Whiteline Adjustable Swaybar.
Proud member of the STRT and Shell croud.

Reply Reply With Quote

2012-03-30 05:53:07

Barney'sB14 Online/offline status of Barney'sB14 is unknown

HellaFunctional

Join Date: 2011-05-12
Location: SoCal
Posts: 1,185
Trader Score: 9 (100%)

I don't believe so. what mods are you currently running? are you on the stock ecu? I have a jwt ecu in my b14 and I'm running a walbro 255, My fuel pressure is set to about 36+/-psi @ WOT.

0 Likes

Be the first to like this post.

B14 "Barney":Tein HA's,S4's,SMC BABK,Bronze TE-37's...STOLEN, STRIPPED, RECOVERED, REBUILDING
MotoIq's Ex-Project B13 "Lucy" : Need I say more?

Reply Reply With Quote

2012-03-30 06:22:43

V1rg1n1azf1nest Online/offline status of V1rg1n1azf1nest is unknown

Life in the fast lane.

Join Date: 2009-11-06
Location: Virginia Beach
Posts: 1,502
Trader Score: 32 (100%)

It shouldn't be a problem. I run my stock fuel pump at that psi and have been for months. Will continue to do so until I have time to swap the engine harness, install walbro, and tune.

You got a wideband hooked up to see if your rich or any particular reason you running 4 bar?

0 Likes

Be the first to like this post.

02 Lexus IS300: Fully Built Garage Queen
90 300ZX: 2JZ swap, Classic Restoration Project
99 Infiniti G20: VE swap, DD
07 Xterra: 6 Speed, 4X4, DD

Reply Reply With Quote

2012-03-30 13:17:11

ga16eats

neew kid on the block

Join Date: 2011-02-07
Location: St.Petersburg FL
Posts: 2,250
Trader Score: 4 (100%)

Engine was running way lean. Using fpr to compensate until i can put it on the dyno and tune

0 Likes

Be the first to like this post.

b13. Trashed.

Reply Reply With Quote

2012-04-10 03:08:36

liljay781

Member

Join Date: 2009-06-16
Location: North Boston MA
Posts: 1,434
Trader Score: 11 (100%)

Mine does the same only on wot, going to get an adjustable to compensate

0 Likes

Be the first to like this post.

Reply Reply With Quote

2012-04-11 01:00:43

ga16eats

neew kid on the block

Join Date: 2011-02-07
Location: St.Petersburg FL
Posts: 2,250
Trader Score: 4 (100%)

i just didnt want all the back pressure to blow out the pump or something.

0 Likes

Be the first to like this post.

b13. Trashed.

Reply Reply With Quote

2012-04-11 01:18:14

badhabits727 Online/offline status of badhabits727 is unknown

SRH

Join Date: 2010-10-24
Location: Tampa Bay
Posts: 1,570
Trader Score: 9 (100%)

Aren't you reading 55 at idle though? I remember seeing your fuel pressure being way high at idle the other day.

0 Likes

Be the first to like this post.

Originally Posted by wnwright

Do heroin at a keg party with Molly, drunk at a strip club, while banging a hooker... In Vegas.

96 Nissan 200SX SE-R
SR20- It's not an engine, it's a lifestyle.

Reply Reply With Quote

2012-04-11 01:27:38

#10

ga16eats

neew kid on the block

Join Date: 2011-02-07
Location: St.Petersburg FL
Posts: 2,250
Trader Score: 4 (100%)

yea, well the afpr isnt working right with vacume. im guessin it is rising rate. im gonna try to bump down to 50 psi tomorrow and see what happens

0 Likes

Be the first to like this post.

b13. Trashed.

Reply Reply With Quote

+ Reply To Thread

Thread Information

There are currently ? users browsing this thread. (? members & ? guests)
StubUserName