Hoping someone has a real oil pressure gauge and can provide some guidance.

I am building a ZX14R powered off-roader (poor wrecked bike...). I am considering an accusump to make sure I don't kill the engine as oil sloshes around from bouncing on uneven terrain or in sustained corners. Particularly since the body rolls away from keeping oil in the pan, instead of with it.

I was leaning towards going with one of the automated valves accusump has- but I need to pick the pressure range, it seems tricky because I don't want the unit dumping all the oil at idle and flooding the pan - Rook's video where he does the oil gauge upgrade shows about 20 psi but I don't know if that is warm or cold. The service manual lists the spec as 40psi at 4k which is where I would like to put the accusump if I can. Can someone sanity check me on what me what the warm idle oil pressure is?

Picture of my build for fun-

Thanks!

* Last updated by: jjv127 on 8/8/2022 @ 8:04 AM *

Cool lookin buggy jjv127!

This video shows the oil psi at idle to be 20 psi. It's probable that the the bike was cold. If the temperature got to normal operating temp, the warning light would have stopped flashing on the temp gauge. I can't remember if the oil pressure was less than 20 at idle if the engine was warmed up thoroughly. The bike's a wreck now so I can't test it for you. Man I sure miss my baby. Makes me sick to think about it. A whole chapter of my life was ripped away and it was a really good one.

ouch- sorry to hear about your bike, you have so many great posts, you clearly spent a ton of time, money, and effort into it. Really sucks it got wrecked....

Thanks for the feedback! Maybe someone else has measured it or has a gauge. Worse case, I suppose I can follow your guide and install my own pressure gauge!

Book calls for reading it hot @ 194F between 35 and 50 psi @ 4,000 rpm. Would show it like a cold leakdown. If I'm seeing 4% leak cold, I'm even lower hot. If I see oil pressure cold at 39 psi, no rev, cold crank if not fire off and read it without rpms added. That's going to tighten clearances up and raise the pressure, so it shows a tight engine if the pressure is higher cold.

Make sense cold testing looking at it my way? It's also read as, the low of 35 psi at 4k is still within serviceable limists. 34.99 psi hot says you need to rebuild it.

Hey Hub,

I see what you are saying- but I think you misunderstood my question.

I am really just looking for a reading of the warm idle oil pressure- because I want to make sure if I get an accusump- it doesn't dump all the oil and flood the pan

https://www.cantonracingproducts.com/canton-24-271x-accusump-pro-version-electric-pressure-control-valve-20-25-psi/

That is an example of the valve- so if the Bike's idle oil pressure is 15 psi warm, it may dump another quart or two of oil in the pan and cause me problems. if the bike's idle oil pressure is 25 psi- the accusump will charge and it should be fine.

See what I am saying?

I run a turbo 14 drag bike with a data logger. I'll check a log tonight and let you know. I'm pretty sure it's in the 16-18 psi hot after a pass at idle. I'll try to include a screen shot.

The log is about 8 minutes total. Top of 5th in full screen shot 80 psi. Next 2 partial screen shots are 7 minutes in at idle you'll see about 1100 rpm 13-15 psi consistently. 10w40 Motul Dino oil, factory Kawasaki filter.

Thanks FordTech! thats exactly what I needed to know.

Looks like I need to either find some RPM activated switch for the accusump, or I will have to manually shut it off at idle unless I want to absolutely flood the engine with extra oil.

Thanks for the help everyone!