Fordmods Logo

Fuel Pressures For 4.0 

 

Page 1 of 1 [ 8 posts ] 

 
 Post subject: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 10:14 pm 
Smokin em up
Offline

Age: 38

Posts: 223

Joined: 9th Feb 2009

Gallery: 3 images

Ride: AU VCT,68 LANE,84 COURIER,

Location: brisbane
QLD, Australia

Hey guys,just wondering about any fuel pressure settings you are using or have used on your cars, its stock au injectors,high flow pump,adjusable malpassi reg.Thanks just want to know what works and what doesn't.

 

_________________

YOU CAN LIVE IN A CAR BUT YOU CANT DRIVE A HOUSE

Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 10:38 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

unless its turbo or supercharged there is no real point of raising the fuel pressure..
im not sure about sdt au but the vct runs about 44psi,no vac/engine under load..
Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 11:14 pm 
Smokin em up
Offline

Age: 38

Posts: 223

Joined: 9th Feb 2009

Gallery: 3 images

Ride: AU VCT,68 LANE,84 COURIER,

Location: brisbane
QLD, Australia

No didnt want to just raise it, just wanted know if any one has tried different pressure, will just be set to stock or close to,but now i have guage as well so ideal for tunning and wanted to see if maybe there is an improvement to be had.

 

_________________

YOU CAN LIVE IN A CAR BUT YOU CANT DRIVE A HOUSE

Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 11:22 pm 
Smokin em up
Offline

Age: 38

Posts: 223

Joined: 9th Feb 2009

Gallery: 3 images

Ride: AU VCT,68 LANE,84 COURIER,

Location: brisbane
QLD, Australia

Well thats a lot of psi.Maybe it could be turned down a little.I wont know till it goes back on the dyno as to what it needs but will be putting reg on in the morning so was looking for a heads up.

 

_________________

YOU CAN LIVE IN A CAR BUT YOU CANT DRIVE A HOUSE

Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 11:37 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

oh ok..
well i was slightly wrong with the psi..
actually the au vct is 350kpa which is about 50 psi
and ef/el xr6 is 300kpa which is about 43 psi
Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 11:43 pm 
Smokin em up
Offline

Age: 38

Posts: 223

Joined: 9th Feb 2009

Gallery: 3 images

Ride: AU VCT,68 LANE,84 COURIER,

Location: brisbane
QLD, Australia

so maybe a pressure drop and road test till i get back up near the stock pressure.I have lost a lot of fuel smoke (probably covered by oil smoke) since the new mods and tune but not sure,i also believe the stock pressure is close to right but it doesn't hurt to ask.

 

_________________

YOU CAN LIVE IN A CAR BUT YOU CANT DRIVE A HOUSE

Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Tue Aug 11, 2009 11:48 pm 
Moderator
Offline

Posts: 14513

Joined: 7th Nov 2004

Ride: ford falcon au3 xr8

Location: a shit suburb in sydney
NSW, Australia

yea a bit of testing wont hurt..
a std falcon runs a little rich from factory..
so a slight drop in pressure might take away a little throttle responce but you may gain a little extra power on full throttle..
Top
 Profile  
 
 
 Post subject: Re: Fuel Pressures For 4.0
Posted: Wed Aug 12, 2009 12:15 am 
Smokin em up
Offline

Age: 38

Posts: 223

Joined: 9th Feb 2009

Gallery: 3 images

Ride: AU VCT,68 LANE,84 COURIER,

Location: brisbane
QLD, Australia

Yeah well i have lost a lot of down low pull now and i thought the reg would maybe help me tune it and bring some back,its a strange thing but since the new intake and pipe work it pulls hardest around 5000 till limiter wich is crap.So maybe the reg wont help at all.Got me to clean the injectors and put a new filter on any way i guess.

 

_________________

YOU CAN LIVE IN A CAR BUT YOU CANT DRIVE A HOUSE

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 8 posts ] 

Who is online

Users browsing this forum: Ed5sp and 44 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sat Dec 16, 2017 3:05 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names