The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-02-2009, 08:37 PM   #1
1moretoy
Registered User
 
Join Date: Jul 2008
Location: san jose ca
Posts: 467
need help with 5.3 fuel system

i currently have an rci 16 gal fuel cell mounted between the frame rails and im going to do a 5.3 swap. seeing as money is tight right now and cannot afford a nice fuelcellguy tank, can i use a walbro 255 inline pump for now? if so im going to summit racing tomorrow and will pick one up(that place is awsome). what else do i need if anything. a friend told me these motors have a fuel reg allready. i will post some pics this weekend as soon as i get back home. thanks

Last edited by 1moretoy; 07-02-2009 at 08:39 PM.
1moretoy is offline   Reply With Quote
Old 07-02-2009, 08:58 PM   #2
novafrog
Registered User
 
novafrog's Avatar
 
Join Date: Apr 2009
Location: dunlow wv
Posts: 435
Re: need help with 5.3 fuel system

as long ,as inlne pumps 65lbs,i used 100 lb pressure,you will need return line,just put 5.3 in nova
novafrog is offline   Reply With Quote
Old 07-02-2009, 09:06 PM   #3
1moretoy
Registered User
 
Join Date: Jul 2008
Location: san jose ca
Posts: 467
Re: need help with 5.3 fuel system

can u explain your set up and what pump did you use
1moretoy is offline   Reply With Quote
Old 07-02-2009, 10:43 PM   #4
novafrog
Registered User
 
novafrog's Avatar
 
Join Date: Apr 2009
Location: dunlow wv
Posts: 435
Re: need help with 5.3 fuel system

i used a pump from jegs or summit,cost 89.00 i think, only one i could fine reasonable,had to buy sending unit that had return line,you got to have45-60lbs pressure to open injectors,once open you don't need but7 or 8 lbs to run,that where return comes in,if need more call me 304 385 4478 i will try to help
novafrog is offline   Reply With Quote
Old 07-03-2009, 07:14 PM   #5
leatherhead63
Registered User
 
Join Date: Jun 2008
Location: Yuma, Arizona
Posts: 43
Re: need help with 5.3 fuel system

yes you can. That is what I use in my 72 with a 5.3. Works fine. I have a filter
before the pump and after the pump.
leatherhead63 is offline   Reply With Quote
Old 07-03-2009, 08:54 PM   #6
68 short step
Senior Member
 
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
Re: need help with 5.3 fuel system

you'll need a constant (atleast) 45lbs of pressure......if its gets below 30lbs of pressure, you'll be able to idle and thats about it.....anything less then 45 you're gonna run into a lean condition...
68 short step is offline   Reply With Quote
Old 07-06-2009, 12:34 PM   #7
tucnnuts
if they can make it so can I!
 
tucnnuts's Avatar
 
Join Date: Feb 2008
Location: birmingham, alabama
Posts: 97
Re: need help with 5.3 fuel system

i think the ls motors run on around 60 psi of pressure...i ran a part#e2000 pump from local autoparts, its a pump used on a ford, inline and i used the ls6 filter it has a return line built in ...comes on new vettes. i only had to run one main line and a short return ...works great..plus if the pump goes bad and can go get one at almost any part store...just my 2 cents
tucnnuts is offline   Reply With Quote
Old 07-06-2009, 07:54 PM   #8
tucnnuts
if they can make it so can I!
 
tucnnuts's Avatar
 
Join Date: Feb 2008
Location: birmingham, alabama
Posts: 97
Re: need help with 5.3 fuel system

heres the filter on ebay...http://cgi.ebay.com/ebaymotors/2002-...Q5fAccessories
tucnnuts is offline   Reply With Quote
Old 07-06-2009, 10:27 PM   #9
1moretoy
Registered User
 
Join Date: Jul 2008
Location: san jose ca
Posts: 467
Re: need help with 5.3 fuel system

thank you. do u know who makes the pump?
1moretoy is offline   Reply With Quote
Old 07-06-2009, 10:35 PM   #10
tucnnuts
if they can make it so can I!
 
tucnnuts's Avatar
 
Join Date: Feb 2008
Location: birmingham, alabama
Posts: 97
Re: need help with 5.3 fuel system

depends on which part store you go to ...i think its a part number e2000...its the same pump on like a 89 f150 i think...i know its a ford pump...
tucnnuts is offline   Reply With Quote
Old 07-06-2009, 11:15 PM   #11
boostat4500
Registered User
 
Join Date: Aug 2006
Location: Reno, NV
Posts: 346
Re: need help with 5.3 fuel system

I would recommend going with an aftermarket regulator. Will make future tuning and mods much easier. You want to start with about 49-50psi. Then if needed, you can turn up the pressure and re-tune, rather than change injector size, within reason of course.
__________________
1971 Suburban 4x4, LQ4 6.0L, 4L80E, etc.
boostat4500 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:50 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com