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

Return line restriction in tank

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Old Oct 2, 2015 | 10:06 AM
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Smile Return line restriction in tank

Having a problem with my return line. With it connected up my fp is hitting 70 psi and won't go lower than 70 psi. When I disconnect the return fuel line right before the fuel tank I can lower it to 56( where I want it)
I have a 87 trans am it has a 02 Camaro fuel tank in it. What can cause a restriction in the tank on the return line?
Thanks in advance!
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Old Oct 3, 2015 | 04:24 PM
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Bumpppp
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Old Oct 4, 2015 | 01:12 PM
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Using stock regulator in tank? Post pics of your setup
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Old Oct 4, 2015 | 02:36 PM
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More info on fuel system. Stock? Aftermarket FPR? What size feed and return?
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Old Oct 4, 2015 | 05:53 PM
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Originally Posted by jrpimp00
Using stock regulator in tank? Post pics of your setup
I have a trick flow fpr up front also have a racetronix 255 fuel pump. Stock lines that connect to a 6an hose.
I'll get pics up when I get home
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Old Oct 4, 2015 | 06:57 PM
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Is the intank regulator removed? Did you set the Trick Flow with or without vacuum hooked up?
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Old Nov 17, 2015 | 09:20 AM
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Figured it out the intank regulator was still in. Flows great now
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Old Nov 17, 2015 | 04:41 PM
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Glad you got it figured out
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Old Nov 20, 2015 | 01:40 AM
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Originally Posted by jrpimp00
Glad you got it figured out
If you remove the factory regulator it will not allow the unused fuel to return to the bucket. The factory regulator diverts all fuel down the metal tube and into the bucket. You must modify the regulator to act as a cap only.

If you do not do this there is a very good chance you will damage your Racetronix pump.

Fuel systems are usually more complex than most customers think. If someone is to considering changes to their fuel system it would be wise to contact the manufacturer to get advise before making the changes!
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Old Nov 21, 2015 | 07:13 PM
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Originally Posted by Racetronix
If you remove the factory regulator it will not allow the unused fuel to return to the bucket. The factory regulator diverts all fuel down the metal tube and into the bucket. You must modify the regulator to act as a cap only.
...
How do you modify it to do this...?
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