I have an autometer electronic oil pressure gauge and im seeing the following readings:

Cold idle 50-60psi

hot idle 25psi

WOT gets close to 75psi then under vtec it dips to 60-65.

I have the sending unit mounted up by the passenger fuse boxes with a 14 inch braided line. It is slightly above the port on the block. could this lead to air in the line affecting the pressure readings? My car is kraftwerks supercharged with a Laminova oil to water cooler. Im just a bit worried due to the lower than normal WOT pressures.


Thanks!

 

cold idle - 600kpa / 87psi

hot idle - i am around 200kpa / 29psi

WOT redline I have seen 720kpa / 104psi

This is on a car that has no additional oil cooler, and sensor was in both the sandwich plate, and also later on screwed directly into the block (defi / 1/8pt / 1/8BPST)

I then installed an oil cooler. Core by Earls, all lines and fittings by earls. My lines are 1m each, and fittings used were striaght ittings on the sandwich plate, and a 45deg anda 90deg on the cooler side. My lines only have one giant/ large radius bend to ensure minimal pressure loss. I then did the same readings above, and got the same pressures!

As a safe measure, you want 10psi for every 1000rpm.. so ideally at WOT/redline you want 90psi.... howelse is your oil cooler setup? Have you considered disconnecting the oil cooler at the block, and just reinstalling the oil filter and getting some data readings? I think thats the best thing to do first!

 

Thanks, Ill give that a shot. I also have the meter with 25psi increments so its kind of hard to read accurately.

 

wow... get rid of that gauge than man! 25psi increments is not for automotive lol..

give it a shot, report back!

As mentioned Im using a Defi (JDMYO!) gauge/sensor, and since its 1/8PT, otherwise known as 1/8BSPT, its a perfect fit into the F20C oem oil pressure sensor bung off the block (above oil filter) so might be good to buy a defi racer gauge for cuple hundred!