If you are getting fuel in the oil I wouldn't run the car till you have the gas figured out. You're washing the walls of the cylinder with gas and you can ruin an engine doing that.
Diagnosing vibration
- Thread starter -83MONTESS-
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Yea its not gonna be fired up until I get a new regulator. Is the fuel pressure drop with throttle increase normal? It drops to 5 psi but doesn't go any lower. Sorry if this is a stupid question, im new to electric pumps and regulators.
I don't have the specs in front of me but yes it was rated to handle it.
I got the new Aeromotive regulator and spark plugs in and long story short the fuel pressure will not drop below 6 psi. The regulator has a 3-20 psi range. So it decreased the pressure a whopping 1 psi but it's still pig rich. One thing I noticed is that when I rev the engine the fuel pressure no longer drops like it did with the Holley regulator so I guess thats good. But now im lost as to how to lower this fuel pressure. Im not gonna waste time changing the oil until its figured out.
Only if you are running two separate fuel systems, all you need is one good one if your fuel system is set up correctly.
I am thinking there is possibly a restriction in your return line somewhere or a venting issue with your fuel tank or cell.
I just got an email back from a tech at Aeromotive and they said my return line is too small which is causing the restriction I suppose. So now I get to buy another 15+ feet of -8 AN and plumb another line. Shoulda just stayed with the stock mechanical pump
True im just tired of the nonstop set backs. Im gonna talk to the guy that built my Qjet and see if there is anything he can do to make it run right with higher fuel pressure. Im not sure if I can just swap the needle and seat setup for a higher pressure one. Then that would hold me over until I could afford a new Holley or Demon.
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