Fuel System Help
Thread Starter
Joined: Sep 2004
Posts: 558
Likes: 7
From: South Texas
Fuel System Help Could I get help on how to put together my fuel system? Truck its running great on the street but at the truck it bogs down off the line, I was told that I had put together the fuel system wrong. This is how I have it,
On the driver side of the regulator its the inlet from the fuel pump aeromotive a1000, the bottom its the return to the fuel cell, the other side goes to the back of the driver side fuel rail, then on front the 2 rails are connected from one to the other, and on the back of the passenger fuel rail I have the fuel pressure gauge connected, which the fuel stops there kind of blocking it.
Also I was told that I should connect the vaccum line instead of having it disconnected as I have now.
This is a picture of how the guy told me how to do it. You can't see the back but he told me to put a Y and feed the back of the two fuel rails from the pump then as in the picture.
I hope this will be the way to fix this problem, or could it be that the injectors are overkill, 75lbs RC injectors?
Thanks,
JJ
On the driver side of the regulator its the inlet from the fuel pump aeromotive a1000, the bottom its the return to the fuel cell, the other side goes to the back of the driver side fuel rail, then on front the 2 rails are connected from one to the other, and on the back of the passenger fuel rail I have the fuel pressure gauge connected, which the fuel stops there kind of blocking it.
Also I was told that I should connect the vaccum line instead of having it disconnected as I have now.
This is a picture of how the guy told me how to do it. You can't see the back but he told me to put a Y and feed the back of the two fuel rails from the pump then as in the picture.
I hope this will be the way to fix this problem, or could it be that the injectors are overkill, 75lbs RC injectors?
Thanks,
JJ
You are currently deadheading the rail which is not the best way to do things.
It is preferrable to feed both rails from one end & take the other rail ends to the regulator & then the return line from the regulator back to the tank.
This way you are only feeding 4 cylinders per rail instead of using the rail to equally distribute the fuel. Constant flow through the rails is maintained as well.
You should boost reference your regulator for more consistant fuel flow. Just remember your tune will be effected if you change it.
What is your power level, injector size etc.
It is preferrable to feed both rails from one end & take the other rail ends to the regulator & then the return line from the regulator back to the tank.
This way you are only feeding 4 cylinders per rail instead of using the rail to equally distribute the fuel. Constant flow through the rails is maintained as well.
You should boost reference your regulator for more consistant fuel flow. Just remember your tune will be effected if you change it.
What is your power level, injector size etc.
Thread Starter
Joined: Sep 2004
Posts: 558
Likes: 7
From: South Texas
That's exactly what a guy from a well known shop told me.
If I boost reference the regulator, the fuel pressure will rise with boost right?
So would that make the truck run rich? But that should be fix with the tuning I believe.
The power level on the truck must be close to 600rwhp and the injectors are 75lb RC Injectors, I’m still worried that the truck will go rich on boost, it would want to turn off when on the burn out box and it turn off ones, not sure why, if it was rich or just because of the bad setup.
Hopefully this will solve the problem.
Thanks a lot for the help,
JJ
If I boost reference the regulator, the fuel pressure will rise with boost right?
So would that make the truck run rich? But that should be fix with the tuning I believe.
The power level on the truck must be close to 600rwhp and the injectors are 75lb RC Injectors, I’m still worried that the truck will go rich on boost, it would want to turn off when on the burn out box and it turn off ones, not sure why, if it was rich or just because of the bad setup.
Hopefully this will solve the problem.
Thanks a lot for the help,
JJ
