fuel pressure dropping after nitrous

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Jan 27, 2010 | 12:09 AM

n204u

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From: Katy, Tx

fuel pressure dropping after nitrous

I did a stand alone for my nitrous set up, using the blue holley electric pump. I bought a aeromotive regulator hooked everything up set my regulator to 6 PSI and took it for a test drive. After the first spray pressure drops to 4 PSI and doesnt come up. I called Jegs to see why the regulator is dropping pressure and guy said it might be bc the gauge gets hot, its a liquid filled gauge. is this true? what can be the problem?

Jan 27, 2010 | 06:46 AM

NXZ28

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From: Richmond Hill, GA

How long is the line from the gauge to the regulator? What brand is the gauge? My autometer sport comp started doing the same thing. I installed a new gauge directly on the regulator with no line and I got an accurate reading.

Jan 27, 2010 | 09:48 AM

Nick@HSW

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From: Glenolden, PA

Did you do a bypass set up?

Nick

Jan 27, 2010 | 11:52 AM

Chris@NitroDaves

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Are you dead heading the pump or running a return style system??

Also you might make sure that you tightened the set screw properly...We have seen them come off adjustment due to vibration.

Jan 31, 2010 | 11:11 PM

n204u

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From: Katy, Tx

i have a return, and gauge is on the regulator. Its a liquid filled gauge, is that true when they get hot they drop pressure readings

Feb 1, 2010 | 12:40 PM

Nick@HSW

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From: Glenolden, PA

Quote:

Originally Posted by n204u

i have a return, and gauge is on the regulator. Its a liquid filled gauge, is that true when they get hot they drop pressure readings

Its entirely possible but I've never seen it happen. Does the pressure slowly creep up to 6 psi when you first activate the pump? What size return and how far away from the cell is the regulator?

Nick