Return style fuel system using stock fuel rail and evap line
02-12-2017, 10:45 PM
#1
Return style fuel system using stock fuel rail and evap line As the title states I want to try and use the stock fbody fuel rail and evap as the return line. I've searched and found a few threads regarding this, but none of them quite answered what I needed. I could really use some pics and a parts list.
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LilJayV10 (03-03-2021)
02-14-2017, 04:06 PM
#4
I used my stock Evap line as my return line but I switched to Billet rails.. it makes life alot easier going that route..
Its possible to use the stock rails but you would have to cut off the end of the rail (where schrader valve is) and thread it for an AN style fitting...
then you can add your AFPR and then route it back using the evap line.
Its possible to use the stock rails but you would have to cut off the end of the rail (where schrader valve is) and thread it for an AN style fitting...
then you can add your AFPR and then route it back using the evap line.
02-14-2017, 05:58 PM
#6
I used my stock Evap line as my return line but I switched to Billet rails.. it makes life alot easier going that route..
Its possible to use the stock rails but you would have to cut off the end of the rail (where schrader valve is) and thread it for an AN style fitting...
then you can add your AFPR and then route it back using the evap line.
Its possible to use the stock rails but you would have to cut off the end of the rail (where schrader valve is) and thread it for an AN style fitting...
then you can add your AFPR and then route it back using the evap line.
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02-15-2017, 04:04 AM
#10
i just did a bunch of planning on this for myself. ok heres what i did from another member but put my own twist on it but you can get the gist of it.
ok first the stock fuel line on the drivers side has a cap on it that covers the pressure release valve. its a 4AN male end, take the shradder valve out and then it goes somehting like this if you think of it in order. I used 6AN to the return since its just easy instead of getting a bunch of reducers and expanders since most FPRs come with 6an connections.
4An female to 6an male fitting
6an to 6an female coupler
aeromotive 40-90psi boost regulated Fuel pressure regulator (1:1 reference) try to get one with the 1/8 NPT so you can have a fuel pressure gauge on it.
two optinon for lines and fittings
option 1 (more expense due to 15ft of an hose costing about $65)
2 6an fitting to 6an hose
6an hose
6AN Male To 5/16" SAE Quick Disconnect Male Fuel Fitting
option 2 (cheaper but you have less flexability due to hard lines but its about have the cost for 25ft verses only 15ft)
2 Fuel Line Adapter -6an Fem To 3/8" Aluminum PRE-730613BLK
25ft of 3/8" Aluminum Fuel Line Tubing Hose
6AN Male To 5/16" SAE Quick Disconnect Male Fuel Fitting
select one of the stock return ports on the back of the car at the fuel T block near the fiuel filter and plug it with a
Brass Pipe Fitting Hex Head Plug 1/4" NPT Fuel Air Boat
after that, the quick discounect fitting goes into the stock plastic line and thats it.
you now have a true return style fuel system without losing your EVAP system.
ok first the stock fuel line on the drivers side has a cap on it that covers the pressure release valve. its a 4AN male end, take the shradder valve out and then it goes somehting like this if you think of it in order. I used 6AN to the return since its just easy instead of getting a bunch of reducers and expanders since most FPRs come with 6an connections.
4An female to 6an male fitting
6an to 6an female coupler
aeromotive 40-90psi boost regulated Fuel pressure regulator (1:1 reference) try to get one with the 1/8 NPT so you can have a fuel pressure gauge on it.
two optinon for lines and fittings
option 1 (more expense due to 15ft of an hose costing about $65)
2 6an fitting to 6an hose
6an hose
6AN Male To 5/16" SAE Quick Disconnect Male Fuel Fitting
option 2 (cheaper but you have less flexability due to hard lines but its about have the cost for 25ft verses only 15ft)
2 Fuel Line Adapter -6an Fem To 3/8" Aluminum PRE-730613BLK
25ft of 3/8" Aluminum Fuel Line Tubing Hose
6AN Male To 5/16" SAE Quick Disconnect Male Fuel Fitting
select one of the stock return ports on the back of the car at the fuel T block near the fiuel filter and plug it with a
Brass Pipe Fitting Hex Head Plug 1/4" NPT Fuel Air Boat
after that, the quick discounect fitting goes into the stock plastic line and thats it.
you now have a true return style fuel system without losing your EVAP system.
What i'll be doing^^^^
02-16-2017, 04:40 PM
#13
I used the factory metal lines that run underneath the car but everything else is new braided stuff..
I got my rails,hose and fittings from this place
http://www.fasster.com/
I got my rails,hose and fittings from this place
http://www.fasster.com/
02-17-2017, 02:00 AM
#14
I used the factory metal lines that run underneath the car but everything else is new braided stuff..
I got my rails,hose and fittings from this place
http://www.fasster.com/
I got my rails,hose and fittings from this place
http://www.fasster.com/
03-10-2017, 12:09 PM
#15
Well I did end up buying the fast fuel rails. I decided to do that to make things a little easier. I am still using the stock hard lines though. Anyone know what fittings are needed to connect factory hard lines to the rails and tank?
10-06-2020, 09:55 AM
#16
I could use the pictures lf you don't mind I'm trying to do this right now and I could really use the pictures lf you don't mind sending them my email address is Jspeak25@gmail.com
03-02-2021, 12:27 PM
#17
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Attachment 589664
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If you need more pics I can take some and upload some more
Attachment 589665
Attachment 589666
Attachment 589667
If you need more pics I can take some and upload some more
What did you do behind the engine bay? Did you make any changes at the T block in the back of the car or at the pump? I just want to make sure I have it all right before it goes back together. I greatly appreciate any input or additional photos you have, but I know this is a 4 year old thread..