stickmantijuana

iTrader: (1)

so I think I did a stupid thing.

I was curious why my oil pressure was spiking to 140 psi at just 3000rpm rev.

I now remembered that I blocked off oil passage into the front cover by completely blocking off the hole from the front iron to front housing.. I'm not using the oil metering pump, so I figured this was a good way to circumvent any possible leak between the front iron and front housing oil hole...

now I'm having spiking oil pressures and I think it's because I blocked oil passage to the front oil pressure regulator because the front oil pressure regulator is on the front alum housing?

I will tear down the motor again if I must, but I just wanted to ask whether this would be necessary? do I absolutely need to get oil to the front oil pressure regulator when I'm 100% premixing? can too high of oil pressure harm my engine?

thank you.

K-Tune

iTrader: (26)

Can you find a picture of the passage that you blocked?

stickmantijuana

iTrader: (1)

cool, thanks.

actually I see that regulator has a separate inlet..

the black arrow is where I tapped a thread and plugged it with a set screw.

now I'm back on where I started? why is my oil pressure spiking so high...?

Monsterbox

iTrader: (6)

Did you upgrade anything, oil coolers, lines, thermostat, pedestal?

After removing the stock oil cooler and moving up to free flowing 10an lines w/ out a thermostat, the oil pressure seems to be a good deal higher on lighter weight oil. I can't recall exactly, but I do see around 110+psi on start-up if rev' around 2-3k rpm

stickmantijuana

iTrader: (1)

that's comforting to know. I just changed oil to amsoil 20/50 from my normal mobil 10/50. I just wanted to make sure that there is nothing causing obstruction beyond the sensor that may cause the pressure to spike. would you mind doing a short clip of your pressure as you're idling and rev'ing at idle at your convenience?

Sgtblue

iTrader: (16)

During the rebuild did you by chance remove the stock thermowax pellet and replace it with a plug?

stickmantijuana

iTrader: (1)

are you talking about the thing that goes at the end of the oem e-shaft? I got aftermarket e-shaft and it just came with an allen plug at the end. That's always been that way..

Sgtblue

iTrader: (16)

Talking about on of these.... 86-11 Rx7 & Rx8 Atkins' Thermal Pellet (ARE50)
In my experience it will raise indicated oil pressure, at least at cold start.
https://www.rx7club.com/3rd-generati...essure-754172/

Banzai-Racing

iTrader: (11)

There is not a thermal pellet on a 20B.

Your oil pressure is normal.

Monsterbox

iTrader: (6)

sure, i'll txt a vid this wkend

could be wrong but it always seems heavier oil raised oil pressure at warmup

imitek

If u dont have omp then block the cover hole or u can leave it open and leave the omp shaft in with a spacer

My car idles at about 1300ish and pressure is 55psi maxive ever seen is about 100psi on my car i use 10/40 oil

You diddnt do the oil pressure valve mod did you where you press the end of it in squashingthe spring inside ?

He||hammer

iTrader: (5)

I just wanted to clarify, before i order a catch can, Is it ok running both nipples from the oil fill neck to the catch can as long as its vented and has a filter, or is there somewhere else it needs to go? car is single turbo, so i obviously don't have the stock twin return lines.

7krayziboi

iTrader: (15)

Some track guys route the oil after the catch can to the rear oil return from the stock twins.

He||hammer

iTrader: (5)

I'm running single and don't have the stock twin return lines. But, thank you anyways