02-02-2009, 10:02 AM #1
I installed one in my 07 Rxp. I set the base pressure at 58 and checked it through out the day. It was always at 58 and when I started it it dropped to 54 out of the water.
When I got home and flushed the ski the gauge was showing 56. While ideling
on the hose it dropped down in the upper 40's and the gauge backed up as I reved it up.
After turning hose off and motor I checked it again and it showed 58.
Is this normal?
02-02-2009, 10:23 AM #2
Its normal for the pressure to drop a few lbs @ idle. It should not drop to the 40s though I would be curious to see where the pressure is at WOT.
02-02-2009, 10:27 AM #3
I was worried about the same fluctuations, but I don't think they dipped that low. Jim (Speedskixp) reassured that I was OK. --Jeremy
02-02-2009, 10:28 AM #4
The gauge does not face up. It faces to the side. I do not think you
can safely see it running wide open.
But I guess I need to try.
02-02-2009, 10:31 AM #5
@ idle the engine produces vakuum... My guess is 10-12psi vakuum... Then the fuel pressure @ idle will drop 10-12psi. If you set the base pressure at 58, you will then se 46-48psi @ idle If your boost goes up to 10psi, you will se 68psi fuel pressure
02-02-2009, 10:44 AM #6
02-02-2009, 10:46 AM #7
Are you sure?? That sounds very low to me...
02-02-2009, 10:47 AM #8
02-02-2009, 10:48 AM #9
02-02-2009, 10:49 AM #10
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