Jump to content
SAU Community

Recommended Posts

I understand everything about this concept but I have never seen an RB26 motor out of the bay before...does anyone have any pictures of where these oil feeds are.....and how do you differentiate between which is the 1st feed and 2nd so as not to get confused aboiut which to block and which to restrict?

Thanks

I wounder how this effects oil pressure just by blocking the rear orifice off.

cheers

Makes no difference, the pressure relief valve controls the oil pressure.

:dry: cheers :thumbsup:

I dont really want to pull a RB26 apart just to do these mods, especially given its young age (1999) but i dont want to sit back and wait for it to go 'BANG' while im at Mallala.

Would a much larger sump with the appropriate baffles suffice for the occasional track day or does the majority of oil remain in the head regardless of sump volume???

snake you pretty much have to pull the engine to put the baffled sump in, the head is only a few bolts further to go....and once thats off why not do new rings bearings and balancing as well?

Ok Guys...

On sunday we started pulling the engine out to do

1: restrictor

2: clutch

3: Engine mount

4: look for any issues

5: change lifters

We took out the engine and box at the same time.

I have got pictures here for everyone to look at on how to put the restrictors in. its pretty easy and does work!!!! before i used to get lots of oil escaping from the CATCH can. ie the catch can was not working. now nothing comes out of the catch can. All i did was block the front oil feed and put a tomei 1.5mm restrictor in the rear feed (as per sydney kids advice) people would tell me my engine was rooted because its got lots of blow by rah rah rah so i aimed to prove them wrong.

To block one of the oil feeds we screwed a screw into the 1.8mm (stock rb30 restrictor) and then pulled it out. once it was out we realised that the screw was stuck in there so we just cut it and put it back in. (See pic)

As for the other one I purchased the 1.5 mm restrictor from hi octane (the tomei one for $17 delivered) and bashed the old restrictor down and bashed this one ontop. (see pics)

for the million $$ question does it make a difference in oil pressure???.

YES.. it does.. BUT only when the engine is cold. before the oil pressure gauge would go up to 3 quarters full on cold startup. Now it goes nearly up to the last line but as soon as the engine warms up it goes back to normal and NO oil pressure increase has been noticed at all.

No difference in lifter noise has been noticed.

YES it did fix my problem (well SO FAR. no oil has escaped from the catch can when before it would escape from catch can.)

I built this RB30DET back in 2004 before anyone knew about the oil issue and how to fix it - so thanks to sydney kids help i have been able to fix this problem.

Its very easy to put the restrictors in and i reccomend that you do this on your rb30det conversion.

See pics.

I hope this helps everyone - heaps of pics to look at.. I am really stoaked my clutch works properly now !!! :mellow:

post-1240-1149091392.jpg

post-1240-1149091499.jpg

post-1240-1149091536.jpg

post-1240-1149091586.jpg

post-1240-1149091731.jpg

post-1240-1149091847.jpg

post-1240-1149091927.jpg

post-1240-1149092020.jpg

post-1240-1149092134.jpg

post-1240-1149092258.jpg

post-1240-1149092311.jpg

post-1240-1149092396.jpg

post-1240-1149092456.jpg

post-1240-1149092564.jpg

post-1240-1149092707.jpg

post-1240-1149092771.jpg

post-1240-1149092946.jpg

post-1240-1149093006.jpg

post-1240-1149093102.jpg

post-1240-1149093285.jpg

Edited by Guilt-Toy

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Also had a look at the Nissan JP website looks like the 400r has a slightly shorter ratio than than the regular V37 3.133 VS 2.937 which from a guy who has driven both 3.69 vs 4.11 ratios in the S15 is bugger all. Seems that the AUTO Z runs the same ratio as the 400R but can't find any info as to if its an open or LSD? More often than not the auto LSD is open
    • Do not replace the power steering lines with this stuff. If it's anything like the Chase Bays stuff it will leak and be worse than stock. The reason why the reservoir is on the LH/passenger side of the car is because that's just where the reservoir was most convenient to fit. Don't overthink this stuff. The intake/cold side of the engine is pretty busy on these cars. And again, the hardpipe is designed to be a janky power steering cooler. In theory you can replace it with a real power steering cooler but that's really only for track use where boiling the fluid is a distinct possibility. Start with the low pressure lines feeding the pump from the reservoir. Make sure there isn't a bunch of junk in the reservoir filter. Be careful to not get ATF all over the engine bay. I hate dealing with ATF spills, you can clean it up and the slightest crevice will still release more oil that can still drip over time. You also want to inspect for leaks before you make a mess and can't tell what happened. Most likely you have a leak somewhere that is allowing fluid out and air in. Failing that it's allowing air in but not fluid out. Only place I can really see that happening is on the low pressure side because the pump will pull a slight vacuum to draw fluid in. Everything after the pump is high pressure or lower pressure, approaching atmospheric by the time it returns to the reservoir.
    • I did a skidpan night at SMSP this week, it was much cheaper than $350. But yeah, you need to slap an LSD in that thing.  I put an OS Giken in the 370Z and it's f**king MARVELOUS even compared to Nissan's viscous LSD. So you're saying it's free now that it's a housing estate? 😂
    • Nah, the car seems to run exactly as it did prior, in saying this it does "seem" to be better down low, like more eager to rev, but that may be 100% placebo effect from intake noise But, I'm not worried about it at all, in the end it is a fairly low compression NA engine that has a well shrouded intake,  if it is getting hotter IAT I cannot notice anything negative performance wise from the seat of my pants thrashing it about on the street or sitting in traffic, so meh, car now now makes induction noise so I'm happy
    • Do you have an IAT sensor? It's worth checking it to see. You may be suprised how little gap you actually need to flood your engine with hot air. (I tape up my airbox for a reason) :p
×
×
  • Create New...