Need Some Help

[240ZRX]

I bought an electric fuel pump from Summit for my SBC/600edelbrock carb

 

The pump was a Holley inline Pro-jection pump pushing 15lbs. Tech said it could be used as long as it had a regulator to cut down pressure to 4-6lbs.

 

Trouble is that pressure on fuel presure gauge fluctuates between 3-6 bounces up/down, and when the ingition is turned off, the pressure on the gauge builds to 9lbs. At times it does not register pressure right away. Although the car runs well, the revs just do not seem smooth. Should I just switch to a lower pressure pump 5-7lbs and ditch the higher pressure pump.

[grumpyvette]

it SOUNDS like the fuel pressure regulator is not working correctly to me!

perhaps the filter OR the byepass/return lines CLOGGED?? or are you useing one of those NEARLY WORTHLESS non-return style regulators???

 

heres some old threads to look over

 

http://forums.hybridz.org/showthread.php?t=108825&highlight=regulator

 

http://forums.hybridz.org/showthread.php?t=108882&highlight=regulator

[240ZRX]

Yes it is a worthless non-bypass regulator. But it has 2 outlet ports, couldn't I run the return from the extra outlet port back to the tank Y/N? Wouldn't that do the trick.

[jnewby]

I rember a while back I bought a non return regular and it didn't work so I got a replacement its ok but I rather have a return.

[grumpyvette]

I don,t know which model regulator your talking about exactly, but if you use a byepass style your problem will usually be under control, as to exactly what will work useing that current regulator, all I can say is try to install a return to the tank and find out!