hi guys, im new here. my current project is a 1953 chevy 2 door. ive got a 02 ls1 from a camaro that im working on right now. i was just wondering if anyone has used a 97 vette fuel rail system with the return on it. i saw one for sale the other day, and thought maybe i could use it. ive seen aeroquip makes a fitting to attach braided line to hard line, and was wondering if this would work. my only concern is the regulator. is there a way to eliminate the regulator?

 

You have to use a regulator in some form to regulate the fuel pressure.

You can use the 97-98 Vette fuel rail (regulator in the rail).

You can use the 99 and up Vette filter/regulator assembly and mount it wherever you want.

You can use an aftermarket adjustable fuel pressure regulator and mount it wherever you want.

Each of these methods allows you to "create" a return line so that you can maintain the needed 58 psi and send the excess back to the fuel tank.

With any of these methods you can hook up with aftermarket fittings and use braided line if desired.

 

My thought are, why bother? The returnless fuel rail on the 02 works just fine, and is a whole lot less work in my opinion. It also makes for a cleaner looking installation with less lines in the engine compartment. There may be some advantages of running the return line ona full gonzo race engine, but the General thought that the single line worked good enough to put it on the late model F bodies and Corvettes. Just use the GM filter regulator back by the tank, and run the single line forward! I think the only reason that places like S&P push the double line system so much, is that they make a lot of money converting the fuel rails. I never have been able to see any good reason for it.

Regards, John McGraw

 

Hi, I am in the process of installing a 2000 LS1 into a '86 El Camino. I only have an input line on the fuel rail and I am using a Corvette fuel filter/regulator (FFR) mounted near the tank. What this allows one to do is connect to the input to the FFR and a return line back to the tank and only one feed line to the fuel rail. The FFR sets the pressure to the proper 58 psi.

Others have use the dual line setup but with that setup you have to run two lines fuel feed and return from the fuel rail plus install a fuel pressure regulator.

Both ways are correct. Just decide which one is correct for your application.

In my situation I mounted the FFR near the tank and ran the return line directly back to the tank with a short line. I am using the stock fuel vent line and the stock single fuel line to the fuel rail. I then only had to route a flex line with the proper quick disconnect to the fuel rail. I did add a extension hard line to a custom location before I changed to the flex line.

I hope this helps. John Bzdel did the duel fuel line setup on his motor, you can read how he did his swap on his website. He has links all over this forum to his website.

 

well this is what im doing: a fuel cell in the trunk, run a line to a fuel pump, run that to a ffr, run one line to the rails and one line to the return side of the fuel cell.


does that sound correct?

 

Anyone have a PN for the corvette style FPR and filter that mounts near the tank?

Thanks
Nick

 

good question ssmonte.

 

Yes, it's 10299146.

Here's what it looks like:

 

how do you delete the regulator from the fuel rails?

 

If using the 97-98 Vette rail with regulator, you don't use any of these other methods. If using the F-body rail or the 99 and newer Corvette rail, there is no regulator, it has been deleted for you.

 

its a 02 f body unit.

 

Just some FYI. The 02 F body system does not use a return line. However, the return/regulator is part of the fuel pump assembly in the tank. I dont think you can just use an 02 fuel rail without some type of return/regulator between the tank/pump and the fuel rails. Certainly not an expert about this, but I havent seen a system that doesnt use some type of regulator/return.

 

Does that corvette unit self regulate to 58psi? Or is it adjustable?

I'm going to be using a LS2 with the LS2 intake and 05 fuel rail/injectors. Is this a return less style setup? If so, will that corvette unit be the easiest to use? At what point does that setup become too restrictive?

Thanks
Nick

 

The other thing is how do you go about connecting the lines to that filter/FPR? I have a fuel AN line fuel system that I will be utilizing. Would it be easier/better for me to run a AN filter right after the tank, then run both a feed and return up the car (have) into a FPR, then one to the rail?

Thanks
Nick

 

There's no regulator on that fuel rail. Just a pulse absorber.

 

The Vette filter/regulator is not adjustable. It's set at a fixed 58 psi.

Yes, the LS2 is very similar to the LS1 fuel rail; just a single feed line, so the Vette filter/regulator is a good way to go. Or you can go with an aftermarket adjustable regulator which just comes with threaded holes so you can plumb it up any way you like.

The Vette filter/regulator isn't necessarily the easiest to use, but it is by far the cheapest.

It will support quite a bit of power since it comes stock on the Z06 and guys are modifying those to some pretty decent drag times.

 

The fittings on the Vette filter/regulator are the same as the fitting on your fuel rail. There are various ways of attaching to this fitting. I like the fittings that clip on just like the factory type fittings, and are threaded for the AN type fittings. They are available from Pure Choice Motorsports and others.

We have the Vette filter/regulator for $50 which includes the male adapter tube as pictured above.