Jump to content
SAU Community

Recommended Posts

Hi all,

Im picking up a series 1 RB30 block,does the series 1 have oil squirters or is it the series 2 that has them? (piston)

No RB30's that I have ever seen have block mounted oil squirters, that's Commodore RB30E, Commodore RB30ET, Nissan Skyline RB30, Series 1 or Series 2. They all have the basic 1980's style conrod oil holes.

Is the series 1 block a good block to use in a 25/30 combo?

Any good block is a good block to use.

Cheers

Gary

there is another block that can be used, but it does require a fair ammount of work to the block to be able to adopt a twin cam head,its do-able and it weighs about 30ks heavier than a standard rb30 block, the cylinder walls are a shitload thicker than a conventional rb30 block and will last well over the 1000 wheel hp mark.....

this particular block comes with piston oil squiters.

2jz is in trouble now....

there is another block that can be used, but it does require a fair ammount of work to the block to be able to adopt a twin cam head,its do-able and it weighs about 30ks heavier than a standard rb30 block, the cylinder walls are a shitload thicker than a conventional rb30 block and will last well over the 1000 wheel hp mark.....

this particular block comes with piston oil squiters.

2jz is in trouble now....

And this mystery block is......?

And this mystery block is......?

My guess is RD28T, 2.8 litre (2825cc) turbo-charged diesel 6-cyl, bore: 85mm, stroke: 83mm.

I looked at it about 6 years ago, there is a lot of work required to fit the RB30 crank (86 mm stroke) and conrods. Plus the cylinder head studs don't line up with an RB25/26 head. The water jacket needs modifying and the oil feed will need some external help.

Cheers

Gary

thats teh 1, deisel, runs somthing like 22:1 compression. found in the nissan partol 92 models.... there is about 4 to 5 grand in block modification, there is a rear water jacket that needs to be welded up, and also 3 oil returns dont line up, need to modify the head aswell to compensate

Its too hard to fit oil jets to a RB30, I know of one shop that used five blocks before he found one that could take all size jets. The sand cast blocks of the RB30 was just to inconsistant with its core shift during casting for consistant fitting of the jets

alrite bud, you know everything

dont take it to heart mate, just saying, there are plenty of high powered RB30's out there, and its alot of work to get the RD28 block going with the 3 litre innards. i havent really heard of RB30 blocks letting go, bar those extreme cases of problems (tuning, oil contro, whatever), or extreme horsepower, but even with the latter there isnt an abudance of supporting evidence, not that i've seen anyway

  • 2 weeks later...

A friend of mine has a 25/30 setup.

Spec's are as follows,

STD Series 2 Block

STD rods and pistons (Motor has not been apart since god know's when)

RB25 head

STD Head ports

STD intake manifold

set of small cams

STD rb25 EX manifold

GT3540 0.86 rear

Haltech e11v2

044 pump

STD R33 box

H/D clutch

made 480HP on 20PSI pump fuel

Daily drive for the last 2 years @ 20psi

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

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...