How do you determine the fuel pressure setting?

RX MIDGET · 03-10-2011, 04:32 AM

The plot thickens...
I have just installed the Mallory 4207 Fuel pressure regulator with matching Mallory gauge. This regulator has a range of 4 - 12 PSI. It was installed exactly as per instructions - super easy!

How come I can set it for 2 PSI?

I have set the Reg at 4 PSI which is half way in the Reg adjustment. (I expected it would be at the minimum setting!)
Whilst it serves the purpose set at 4 PSI, I am now wondering if the fuel pump (which I was told is 7 PSI) is actually running alot less PSI????
Car ran well before hand and the reg was filled as a precaution.
Am I missing anything?
Is the reg working?

03-10-2011, 04:32 AM	#13
RX MIDGET MG rocket Join Date: Oct 2010 Location: Victoria Australia Posts: 40 Rep Power: 0	The plot thickens... I have just installed the Mallory 4207 Fuel pressure regulator with matching Mallory gauge. This regulator has a range of 4 - 12 PSI. It was installed exactly as per instructions - super easy! How come I can set it for 2 PSI? I have set the Reg at 4 PSI which is half way in the Reg adjustment. (I expected it would be at the minimum setting!) Whilst it serves the purpose set at 4 PSI, I am now wondering if the fuel pump (which I was told is 7 PSI) is actually running alot less PSI???? Car ran well before hand and the reg was filled as a precaution. Am I missing anything? Is the reg working?