I have no real reason to do this ecept for maybe I think that I don't have sufficient oil pressure, is there a way to raise it or do I need an aftermarket oil pump, the reason I ask is because at idle my guage read probably around ~10psi and that seems kinda low to me on the freeway or whatever driving full throttle and etc, it goes to ~50 sometimes ~60 but I am looking for maybe ~70, is that a possibility or am I worried about nothing and should just forget about it?

A good rule of thumb is that oil pressure should be at 3 bar (low to mid 40's psi ) at 3000 rpms once the car is warmed up. It sounds like yours is perfect. I would only worry if it starts to signifigantly drop from there even after changing your oil. It will drop a little as the oil thins. If it drops a lot it could be an indication of a bad bearing.

cool but is there any way just for increased lubrication, I mean I know I'm cool, cuase Im in spec but just wanted it circulated more, but its just nothing to worry about I guess....

I'm not sure of the availability of an upgraded oil pump, but to the best of my knowledge they are not needed. I wouldn't worry about wanting more lubrication, just maybe change your oil every 2000 miles with a synthetic oil if you want some extra security, that's what I do.

JWT sells the GTiR/SR20VE oil pump..I think its mighty expensive though, and you have to take off the front cover of the engine(I.E pulling the enging out of the car). Give them a call http://www.jimwolftechnology.com They'll tell you what needs to be done if you're really worried, which you shouldnt be.

The pressure i've been getting for the last couple of months on my DET are 10psi at idle and about 30psi when i'm at 3grand, 40psi at 4grand. WOT it's at 55psi. Like i said i've driven the car for 2 months like this, so should i fear a spun bearing or not sweat it. I'm using mobil 1 10w-30.

Originally posted by SE-Rious B14
The pressure i've been getting for the last couple of months on my DET are 10psi at idle and about 30psi when i'm at 3grand, 40psi at 4grand. WOT it's at 55psi. Like i said i've driven the car for 2 months like this, so should i fear a spun bearing or not sweat it. I'm using mobil 1 10w-30.


Assuming that you have no oil leaks and that the pressure has been dropping, the first thing that I would assume is a spun bearing. However, if you have been drivfing for a couple of months and have not heard any loud knocking noises I can't in=magine you have a spun bearing. The only time I spun a bearing it was very loud any time the engine was under load. By the time you hear it knocking though, you will have destroyed the crank. All I could think to do is starting a new thread and seeing if someone else knows a litle more about his subject than myself. Good Luck.
-Sean

I'm familiar with a spun bearing and what it can do to the crank, that happened to me about a year ago. My pressure used to be higher (about 15psi at idle) but i had to replace the front cover cause of a crack in it and we changed out my DET oil pump with a DE one. That's when the pressure began to drop, so you think it was switching to a DE pump that caused this to happen? any info is appreciated. peace.

is there a way to raise it or do I need an aftermarket oil pump,
You can raise the oil pressure by simply shiming the oil pressure reliefe valve.
That's what I had done to my NX a couple of years ago when I had the timing chain replaced.

how do you do that, is it a do-it youreselfer or to complicated...what do you do when you shim it...Pics?

Don't you have to remove the front cover to get to that shim?
I've heard that VW turbo cars run 100PSI of oil pressure--that sounds nice to me...the more the better I would think. But then I've heard that sucks more power to create that kind of pressure too.

Originally posted by gpriceynissan
Don't you have to remove the front cover to get to that shim?
I've heard that VW turbo cars run 100PSI of oil pressure--that sounds nice to me...the more the better I would think. But then I've heard that sucks more power to create that kind of pressure too.

I would not want to run 100psi or oil pressure...talk about blowing all kinds of seals out!!!:eek:

Originally posted by SENTRASER
I would not want to run 100psi or oil pressure...talk about blowing all kinds of seals out!!!:eek:

The VE has 100psi and it does not blow the seals. Most of the block between the de and the ve is the same. I think the 100psi is overkill for a DE. The standard is 10psi per 1000 rpm.

how do you do that, is it a do-it youreselfer or to complicated...what do you do when you shim it...Pics?
It's a bit much for a DIY. You'll have to remove the front cover to get at the oil pressure reliefe valve.
However, a competent mechanic should be able to perform this task.
As for pictures:
I'll see if I can find the ones I took.

cool

Originally posted by Subculture
You can raise the oil pressure by simply shiming the oil pressure reliefe valve.
That's what I had done to my NX a couple of years ago when I had the timing chain replaced.


Could you breifly explain this process, i.e. what shim to you put in to replace the original one, where it is located, etc. I currently have a motor out of my car that I am building and would really like to do this. Thx for any help you can give me.

~Sean

Originally posted by SE-Rious B14
I'm familiar with a spun bearing and what it can do to the crank, that happened to me about a year ago. My pressure used to be higher (about 15psi at idle) but i had to replace the front cover cause of a crack in it and we changed out my DET oil pump with a DE one. That's when the pressure began to drop, so you think it was switching to a DE pump that caused this to happen? any info is appreciated. peace.

I spun a bearing a couple of years ago also, it sure it a pain in the a$$. I do not know the differences between the det and de oil pumps, such as if the det yields a higher pressure, etc. I would assume that if your oil pressure is not dropping more and more as time goes by that you are probabally ok. If it was me and I had any concers about a spun bearing, personally I would replace them. To me $50-$60 and a half days work replacing the bearings and knowing that they are all ok is better than the anxiety of spinning a bearing at any given moment and being out $500 for a new motor and an entire weekend to get it into my car. But, if your car is not dropping pressure more and more as time goess by and is not making that horrid spun bearing knocking noise, you are probabally fine. Also, was it a new de oil pump or a used one? If it was used maybe it is just old and not as efficient.

Originally posted by AZ WHITE SE-R
I spun a bearing a couple of years ago also, it sure it a pain in the a$$. I do not know the differences between the det and de oil pumps, such as if the det yields a higher pressure, etc. I would assume that if your oil pressure is not dropping more and more as time goes by that you are probabally ok. If it was me and I had any concers about a spun bearing, personally I would replace them. To me $50-$60 and a half days work replacing the bearings and knowing that they are all ok is better than the anxiety of spinning a bearing at any given moment and being out $500 for a new motor and an entire weekend to get it into my car. But, if your car is not dropping pressure more and more as time goess by and is not making that horrid spun bearing knocking noise, you are probabally fine. Also, was it a new de oil pump or a used one? If it was used maybe it is just old and not as efficient.

I've never spun a bearing but I do know that the SR20VE & GTiR have same oil pump. The SR16VE N1 has the highest volume oil pump to my knowlage that is SR based. So that would be the highest one you could get. I agree about changing the rod bearings while the engine is out , I also think you need to prelube the bearings somehow when you first start it up becuase it wont have oil pressure for a while(5 seconds or so)untill the oil pump catches up.
~Ryan

here is a thread on that:

http://www.sr20deforum.com/showthread.php?s=&threadid=39147

Originally posted by SENTRASER
I've never spun a bearing but I do know that the SR20VE & GTiR have same oil pump. The SR16VE N1 has the highest volume oil pump to my knowlage that is SR based. So that would be the highest one you could get. I agree about changing the rod bearings while the engine is out , I also think you need to prelube the bearings somehow when you first start it up becuase it wont have oil pressure for a while(5 seconds or so)untill the oil pump catches up.
~Ryan