Fuel pressure keeps rising on one regulator

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Fuel pressure keeps rising on one regulator

Post  rocketpony on July 26th 2017, 9:54 am

So I'm running the 11102 areomotive non bypass pump, feeding a regulator log and a bypass regulator. On the log I have 2 regulators, one for carb and one for nitrous. 
Problem is fuel pressure on the nitrous regulator gets creeping up. The carb psi is fine and don't change.
I've tried different gauges
Carb regulator is holley843 , with 10 feed and 2 8an outlets
Nitrous regulator is nx 15951 with 3/8npt in and 2 3/8npt outs
I've tried adjusting fuel psi on my bypass regulator and if I turn it up both regulators will creep up
Thanks

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Re: Fuel pressure keeps rising on one regulator

Post  rmcomprandy on July 26th 2017, 10:29 am

Only when it is being used with some fuel flowing does a "dead head" regulator work correctly.
The nitrous fuel line NEEDS a by-pass type regulator.

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