Rb26 Oil Supply Issues

[peggy]

Hi, New to forum and Skylines.

I know this issue has been covered many times before, but the more I read - the more I get confused/frustrated/annoyed.....

Recently purchased a R32 GTR. Car is going to see some track work (ie sprint events @ Barbagallo). Rspec tyres, decent brakes etc. Car stock, but soon doing the basic "first" stage upgrade ie; turbos/injectors/pump/PWR FC/boost control. Engine compression and leakage test excellent. The $1M question is: Can any mods to rectify the common oil surge/supply issue be carried out, without removing engine? or removing head?

Have been suggested a band aid fix like running more oil, keeping revs to under 7000, and installing a big quality oil pressure gauge/light (and keeping your eyes glued to it!) etc.

Don't want to go to the huge expense of ripping the engine out to carry out the mods, just so I can do some sprint laps at the track. But also don't want carry out the above performance upgrades and then lunch a engine and start again.

Or am I stuffed - and HAVE to spend the $$.

Any ideas/clues or experience with this problem, please reply.

Cheers, Steve.

[ohno1]

..im in the same boat dude, so im pretty keen on what anyone has to say

[GTS-t VSPEC]

Personally I wouldn't take the risk with your engines. The minimum mods would be a baffled sump or Trust sump extension. This will increase the volume of oil, and make sure it's not starved during hard cornering. The head mods tend to be for sustained high rpm, where the oil get's lifted to the head, but I wouldn't worry about this as much unless doing a reasonable amount of track work.

[gazza750]

i am at the moment getting sump baffle and an oil restricter and head drain installed on my 32R after oil starvation screwed my big ends .No real cheap way out of it without pulling motor out and doing it properly and while its apart ya migh aswell throw a set of forgies in it lol

[Ashy Larry]

I have baffled sump and run a touch more oil.

Have run R Comps at Barbs, and touch wood to date, no issues.

I also keep revs under 7000

[GTS-t VSPEC]

I have baffled sump and run a touch more oil.

Have run R Comps at Barbs, and touch wood to date, no issues.

I also keep revs under 7000

Mike, you don't drive fast enough to have any oil starvation issues

[R32 Driver]

I agree with Gary lol

but if you can install a baffle/sump extension w.o removing the engine then you have some hope

[peggy]

Thanks for replies so far.

Any more tracked cars that have not had the major mods?

Can the sump baffle or extension be fitted without removing engine?

What sort of $$ for parts and labour (approx) to complete above.

Thanks, Steve.

[Harry-Hotpants]

use the tomei 1.0m, or 1.25mm oil restrictors in ur middle and rear oil feeds, they run a 1.5mm from standard, dont modify the front one as it is ur for ur vvt solenoid.

this will require ur head to be removed tho, and whilst this is done drill out ur oil return lines, i read this forums oil supply issues thread all in one night and have pretty much everything said stored in the noodle scratcher.

i shall be carrying all this out on my motor when it comes apart for forged rebuild.

also use a return to sump catch can

[bubba]

use the tomei 1.0m, or 1.25mm oil restrictors in ur middle and rear oil feeds, they run a 1.5mm from standard, dont modify the front one as it is ur for ur vvt solenoid.

this will require ur head to be removed tho, and whilst this is done drill out ur oil return lines, i read this forums oil supply issues thread all in one night and have pretty much everything said stored in the noodle scratcher.

i shall be carrying all this out on my motor when it comes apart for forged rebuild.

also use a return to sump catch can

VVT? it's an RB26..

There is pretty much nothing you can do without removing the engine, other than overfilling the oil slightly.

Have a search through the Forced Induction area, there is a thread on RB Oil Control and another thread about the restrictors.

Everyone else, please don't arbitrarily tell people what size restrictors to use. It depends entirely on what head is used, with what oil pump and for what use.

[G0DF4Th3R]

Get a sump baffle at the very least, Tomei makes baffle plates for RB26s as well as pretty good oil pumps which I also use.

Also, consider oil cooling as well given how hot WA can be (IIRC ). I know you didn't mention it but its important to me at least and is one of the first few things I'd get done.

[Gav]

Hi, New to forum and Skylines.

I know this issue has been covered many times before, but the more I read - the more I get confused/frustrated/annoyed.....

Recently purchased a R32 GTR. Car is going to see some track work (ie sprint events @ Barbagallo). Rspec tyres, decent brakes etc. Car stock, but soon doing the basic "first" stage upgrade ie; turbos/injectors/pump/PWR FC/boost control. Engine compression and leakage test excellent. The $1M question is: Can any mods to rectify the common oil surge/supply issue be carried out, without removing engine? or removing head?

Have been suggested a band aid fix like running more oil, keeping revs to under 7000, and installing a big quality oil pressure gauge/light (and keeping your eyes glued to it!) etc.

Don't want to go to the huge expense of ripping the engine out to carry out the mods, just so I can do some sprint laps at the track. But also don't want carry out the above performance upgrades and then lunch a engine and start again.

Or am I stuffed - and HAVE to spend the $$.

Any ideas/clues or experience with this problem, please reply.

Cheers, Steve.

How old is the motor in the car now? If it's original, then assume at some stage you will need to rebuild it anyway. If that's the case, just keep the oil slightly overfilled for the track and install an oil catch can allowing for easy oil draining/recovery. When you rebuild the engine that's the time to address the oiling issues properly.

If the engine is newish, then the above is really a compromise and it's up to you with regards to how hard you drive the car, corner and rev it etc.

I've blown more than my fair share of RB engines - drop me a PM if you want my thoughts on your situation.

Cheers

Gav

[peggy]

Thanks everyone for advise and info.

Gav - Tried to PM but "have not got enough post counts" whatever that means?

My daytime email is [email protected]

MOB: 0418 947629

It would be fantastic if you could contact me because I have a heap of questions.

The car is going to be set up for parttime circuit work, so I want get it right first up.

Thanks, Steve.

[*D-Joker*]

Hello people, I am new to the forum so please bare with me.

and my apologies to bring up an old thread but I was reading it and it was relevant to a problem i mite have in the near future.

I just went and got myself a R32 GTR... but my car is going to be for a track car only (for now anyways)

...and there are just a few things i would like to know about this oil starvation problem, i know that this has been covered many times as previously stated, but there a couple of aspects that have been danced around but not answered for me.

the things I would like to know is:

1. I have read on "wikipedia" (not sure if its completely accurate or not) that there was an oil problem with the 1992 and earlier rb26 due to some bad tolerancing, so is this oil starvation problem only in the early motors as well or is it in all rb26's?

2. also most people that talk about this problem are also upgrading the motor... I am however leaving my motor bone stock minus better oil pump etc. (until im ready to advance)... so does this oil problem still happen in the stock motor? or is it only a problem when you are looking at big power out of the motor?

thanks in advance for any imput

[GTS-t VSPEC]

Hello people, I am new to the forum so please bare with me.

and my apologies to bring up an old thread but I was reading it and it was relevant to a problem i mite have in the near future.

I just went and got myself a R32 GTR... but my car is going to be for a track car only (for now anyways)

...and there are just a few things i would like to know about this oil starvation problem, i know that this has been covered many times as previously stated, but there a couple of aspects that have been danced around but not answered for me.

the things I would like to know is:

1. I have read on "wikipedia" (not sure if its completely accurate or not) that there was an oil problem with the 1992 and earlier rb26 due to some bad tolerancing, so is this oil starvation problem only in the early motors as well or is it in all rb26's?

2. also most people that talk about this problem are also upgrading the motor... I am however leaving my motor bone stock minus better oil pump etc. (until im ready to advance)... so does this oil problem still happen in the stock motor? or is it only a problem when you are looking at big power out of the motor?

thanks in advance for any imput

1. Occurs in all 26's, but tends to be worse in the R32s

2. Definately happens on the stock motor, it's about rpm rather than power.

[gazza750]

Hello people, I am new to the forum so please bare with me.

and my apologies to bring up an old thread but I was reading it and it was relevant to a problem i mite have in the near future.

I just went and got myself a R32 GTR... but my car is going to be for a track car only (for now anyways)

...and there are just a few things i would like to know about this oil starvation problem, i know that this has been covered many times as previously stated, but there a couple of aspects that have been danced around but not answered for me.

the things I would like to know is:

1. I have read on "wikipedia" (not sure if its completely accurate or not) that there was an oil problem with the 1992 and earlier rb26 due to some bad tolerancing, so is this oil starvation problem only in the early motors as well or is it in all rb26's?

2. also most people that talk about this problem are also upgrading the motor... I am however leaving my motor bone stock minus better oil pump etc. (until im ready to advance)... so does this oil problem still happen in the stock motor? or is it only a problem when you are looking at big power out of the motor?

thanks in advance for any imput

well it happened in my 1993 gtr thats why i had to rebuild

[*D-Joker*]

well it happened in my 1993 gtr thats why i had to rebuild

man that sucks... would freakin hate that happening

so how did you get around the problem? baffled sump?

so it is enevitable...im gonna have to take the motor out of the car?

[*D-Joker*]

1. Occurs in all 26's, but tends to be worse in the R32s

2. Definately happens on the stock motor, it's about rpm rather than power.

fair enough...

thanks for that info...im just trying to see if there is a way around not having to take the motor out, but its not looking to good atm.

[bubba]

man that sucks... would freakin hate that happening

so how did you get around the problem? baffled sump?

so it is enevitable...im gonna have to take the motor out of the car?

Baffled sump extension generally means engine out unless you really know what you're doing and have little monkey hands.

Oil pump is usually an engine out job too as the sump has to come off.

Another thing is, you talk of leaving the engine bone stock minus the oil pump, what oil pump are you looking at putting in? an upgraded/uprated aftermarket oil pump is going to mean you will also have to pull the head off to put some restrictors in.

OR

Run a catch can and an extra litre of oil and start collecting all the bits you will need for the rebuild

Edited April 8, 2010 by bubba

[260tech]

fair enough...

thanks for that info...im just trying to see if there is a way around not having to take the motor out, but its not looking to good atm.

Upgrade to "better oil pump". This mod will improve oil delivery to the moving parts than present pump is capable (of). As I read it in the threads, oil problems are from poor gravity return to sump via standard oil return paths from rocker/cam dept., therefore more efficient pump is just going to accentuate existing oil return problem. (pump more up whilst allowing standard amount to return to sump)

No doubt you are aware of this but.

My 2c

GW

PS: I have sump baffle plate (Nismo from memory) & oil restrictor in head. Not tracking my beast, just a little peace of mind.