CLASS RACER FORUM - View Single Post

Dick Butler · 10-26-2015, 10:12 AM

Where are you picking up the fuel pressure for the gauge? For control of pressure on Q jet car needed larger line for return than supply or the line created Higher pressure than regulator could reduce. Obviously with injection needs that is different but maybe where you are plumbed in with gauge isn't giving pressure at correct area for operation information. (I bet on return line air creation getting in pump.) Would explain drop in pressure by bubbles in line.

10-26-2015, 10:12 AM	#14
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: starts breaking up at 4500 rpm. Where are you picking up the fuel pressure for the gauge? For control of pressure on Q jet car needed larger line for return than supply or the line created Higher pressure than regulator could reduce. Obviously with injection needs that is different but maybe where you are plumbed in with gauge isn't giving pressure at correct area for operation information. (I bet on return line air creation getting in pump.) Would explain drop in pressure by bubbles in line.