LS intake and fuel rails

gdf · Jan 20, 2013

ok ..... i pulled the truck intake of my motor and put an LS1 intake on it......The truck had a supply and return on the fuel rails......The LS1 only has a supply.....So running this intake and fuel rails i dont have to have a supply?? also on the oppisite side of the supply fitting there is what looks to be some type of regulator.....Is this a regulator or am I just way off and dont have a clue whats going on.......any help is greatly appreciated....Thanks HardLine

1TONZR2 · Jan 21, 2013

you will need some sort of regulator on there. goto your local parts house and get a Vette fuel filter. They are the regulator for those cars.

Elliott · Jan 21, 2013

Woodlee did a very good write up on pirate about how to run these fuel systems, search for it over there, should answer any question you have.

Draco · Jan 21, 2013

G....I have all the info you need along with part numbers. Holla at me this afternoon. :dblthumb:

civicmindedex79 · Jan 21, 2013

Here is the part # for the WIX filter. They make a cheaper filter but I haven't heard anything good about it. Also is the part # for all of the fittings to make it #6 AN ready to hook up.

WIX filter #33737
3/8 russell quick connect # 640850
5/16 russell quick connect # 640860
Russell 3/8 Male quick connect to -6AN #640940

There are bunches of places that sell these as combo kits ready to hook up.

rock mafia · Jan 21, 2013

That picture with the blue fittings is wrong. The center fitting is 5/16 and is the return, the top fitting is 3/8 and is the feed coming from the fuel pump-like the first picture posted.

Those blue fittings with the plastic clips are garbage. I've seen two of them pop off. One could have burned a buggy down with about six of us working on it had it popped off a few minutes sooner.

Use these. They use a metal nut and o-rings.

1 for fitler and 1 for fuel rail
http://www.summitracing.com/parts/rus-644123

1 for filter return
http://www.summitracing.com/parts/rus-644113

for the outlet
http://www.summitracing.com/parts/rus-640940/overview/

civicmindedex79 · Jan 21, 2013

rock mafia said:
That picture with the blue fittings is wrong. The center fitting is 5/16 and is the return, the top fitting is 3/8 and is the feed coming from the fuel pump-like the first picture posted.

Those blue fittings with the plastic clips are garbage. I've seen two of them pop off. One could have burned a buggy down with about six of us working on it had it popped off a few minutes sooner.

Use these. They use a metal nut and o-rings.

1 for fitler and 1 for fuel rail
http://www.summitracing.com/parts/rus-644123

1 for filter return
http://www.summitracing.com/parts/rus-644113

for the outlet
http://www.summitracing.com/parts/rus-640940/overview/

I took the pics down. Didn't even notice they were backwards just grabbed a pic off of google images :

mostly to show ends and filter not in a factory install.

I have been running the plastic clip lines for two years now and not a problem but hadn't seen the ends you posted either.