fuel pressure tester came today....my fuel pressure seems mostly within spec despite age. please confirm

pump on, engine off, 3.2bar

pump off, engine off, sits at 2.6bar (no leak down in 10 minutes)

pump on, engine on (idle) 2.6bar

pump on engine on (reving up) shoots straight to 3bar and slowy drops down to 2.6bar as engine revs increase (is this bit normal?)

i would of thought it should be at 3 bar when in the higher revs?

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the world is changed by people in sheds

ive done a bit more investigating....and tinkering, with some reasonable findings.

ended up using a go pro to record the fuel pressure tester in engine bay while driving to test under load conditions...

my initial testings were mostly correct except

i was being a fanny and not opening the throttle enough on driveway as it would bounce of limiter too quickly, it sits at a wobbly 2.9-3bar at WOT while driving or bouncing off the limiter stationary.

it would sit at a wobbly 2.4-2.6 bar at idle

i made a vacuum pulse restrictor orifice by drilling a 0.8mmx5mm hole in a piece of brass and heat pressing it into a 4mm plastic barbed pipe fitting. fitted it to the fuel pressure regulators vac line.

similar things are used to stop boost/vac gauge needle fluctuations

wobbly fluctuations in fuel pressure are gone. but it still switches between low and high pressures as quickly as without

pretty sure this is a good thing?

thoughts?

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the world is changed by people in sheds