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04-28-2013, 05:07 PM
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#1 |
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Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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Fuel Line Setup Help
Ok here is what I have
tank-->Walbro GSL-392 fuel pump--> Wix 33737 filter--> firewall Passenger side F.A.S.T. rail port--> out front port and into drivers side front port. My question is this 1. Does the Walbro GSL pump have the fuel pressure regulator internally as it is for a Vette 2. If it does not have the fuel pressure regulator, where should i put the fuel pressure regulator? 3. On the F.A.S.T. fuel rails, do you need to run a return line back to the tank or can you just cap it and put a fuel pressure gauge and then the return line will be from the wix filter back to the tank instead? Thanks everyone for the help!
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04-28-2013, 08:37 PM
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#2 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,238
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Re: Fuel Line Setup Help
the wix 33737 filter is all that is need for an ls motor for a fuel pressure reg on the returnless style systems iam told
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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04-28-2013, 10:17 PM
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#3 |
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Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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Re: Fuel Line Setup Help
The F.A.S.T. fuel rails are set up with an AN Fitting to return to the tank, but i am wondering if can just put a cap at one end. I figure if it has the fuel pressure in the rails regulated by the fiter or pump then i dont see the problem. I need someone smarter than me though let me know if I am right.
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Check out my build: 1972 LQ4 Swap http://67-72chevytrucks.com/vboard/s...=1#post5427693 |
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04-29-2013, 12:23 PM
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#4 |
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17's too small
Join Date: Oct 2004
Location: Las Vegas, NV
Posts: 336
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Re: Fuel Line Setup Help
As stated above your filer is the "corvette" filter.
That filter has the regulator in it. It also has 3 lines. 1 in, 1 out to engine, and 1 return. Use that as the return and find the correct plug for the fuel rail. Also keep your in line fuel pump mounted as low as possible in relation to the tank. They dont like to pull fuel up hill.
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68 C10 SWB SS 5 lug power disc brake conversion 2.5 inch drop spindles van tilt column Air Ride Technologies Cool Ride air bag kits Performance Online tubular upper control arms and shock relocator kits ECE super track panhard bar 1 piece side windows |
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04-29-2013, 01:07 PM
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#5 |
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Registered User
Join Date: Jul 2010
Location: Portland, Oregon
Posts: 411
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Re: Fuel Line Setup Help
Thanks cruizer! Instead of a plug would it be possible to put the fuel pressure gauge there instead to cap it?
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Check out my build: 1972 LQ4 Swap http://67-72chevytrucks.com/vboard/s...=1#post5427693 |
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04-29-2013, 02:41 PM
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#6 | |
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17's too small
Join Date: Oct 2004
Location: Las Vegas, NV
Posts: 336
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Re: Fuel Line Setup Help
sure. just remember that (my feelings) the guage looks cool, but is not functional, for the most part. you need to be able to monitor the fuel pressure at wide open under a load. when i was adjusting a regulator on a tpi car we had the guage taped to the outside of the windshield with a hose down to the test port. this worked good.
Quote:
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68 C10 SWB SS 5 lug power disc brake conversion 2.5 inch drop spindles van tilt column Air Ride Technologies Cool Ride air bag kits Performance Online tubular upper control arms and shock relocator kits ECE super track panhard bar 1 piece side windows |
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