Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Stock FPR location?

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Old Feb 14, 2008 | 05:11 PM
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Default Stock FPR location?

I am sure this is a stupid question but, where is the stock FPR located, if it is in the tank does it have to be removed to run a external regulator? or can they be ran togather? but that seems to defeat the purpose. Thanx.
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Old Feb 14, 2008 | 05:43 PM
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Stock FPR on LS1 cars is in the fuel tank. It has to be removed inorder to run an external regulator. You cannot run them in series.
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Old Feb 14, 2008 | 10:00 PM
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Great Thanx, 1 question, how is it in tank, attached to the pump or mounted seperatly?
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Old Feb 15, 2008 | 02:48 PM
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It's seperate from the fuel pump, but mounted on the same assembly as the pump.
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Old Feb 15, 2008 | 04:38 PM
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So you would just remove or bypass it in the tank, and install an external?
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Old Feb 16, 2008 | 02:22 PM
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just remove the one one from the tank, and run one at/near the rails and run a return line to the tank.
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Old Feb 16, 2008 | 07:50 PM
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Got it... Thanx guys.
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Old Feb 17, 2008 | 02:54 PM
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the stock "return line" if you can call it that tees off after the fuel filter, so you will have to run a return line from the rails back to the tank and plug the tee. You can use the stock EVAP line as a return line with a little modification.
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Old Feb 18, 2008 | 08:25 PM
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Hum strange, the car I just bought, has a H/V intank pump and a rcaetronix in line, I follwed the line it goes to the front of one of the Fast rails, then the 2 are connected at the rear of the rails. Si if I used the Regulator it has the inlet on the bottom and 2 ports for fuel outlet. I am confused here, on my oldskool rides I ran 1/2 line from the sump to the reg then to each of the bowls on the dominator carb, where the return port for the EFI setup sorry giys new to this.
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Old Feb 19, 2008 | 01:49 AM
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Not to Hijack, but whats a good size AN line to run?
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Old Feb 19, 2008 | 11:04 PM
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Originally Posted by OldskoolRcr
Hum strange, the car I just bought, has a H/V intank pump and a rcaetronix in line, I follwed the line it goes to the front of one of the Fast rails, then the 2 are connected at the rear of the rails. Si if I used the Regulator it has the inlet on the bottom and 2 ports for fuel outlet. I am confused here, on my oldskool rides I ran 1/2 line from the sump to the reg then to each of the bowls on the dominator carb, where the return port for the EFI setup sorry giys new to this.
Negative. The FPR's with 3 ports, the inlet ports are on the side, and the return is on the bottom. These are for if you Y the feed line and have one going into each rail, and a line coming out of each rail and into either side of the FPR. Then you would run the bottom off the FPR to the return line to the tank. If you are using a crossover, you need a FPR with a single in and single out.
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