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RB30 Build (Dry Sump, RB26 Head)


synthtk

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It has been a long time since I have posted up on here but figured this would probably be of interest. After many years, a few twisted rear ends, a blown RB26 and ultimately lots of time saving my pennies to acquire parts I am finally assembling my RB30/RB26 engine.

 

I will list part numbers where I can in case anyone is curious.

 

4/20/2008

I picked up the RB30 Series2 Turbo short block from a friend of a fellow HybridZ member (I forget who, I am sorry) back in April of 2008.

 

RB30%252520Block%252520002.jpgRB30%252520Block%252520003.jpg[more]

 

5/11/08

And shortly after I picked up a set of RB30 forged rods.

RIPS%252520RB30%252520Rods%252520006.jpgRIPS%252520RB30%252520Rods%252520010.jpg[more]

 

5/30/10

And then both just sat in my garage for a long while since my RB26 was still running fine, but then Memorial Day 2010 I was up drag racing @ Fontana, CA something went wrong (very wrong) and I ended up melting a piston, breaking a few valve guides, damaging the quench pads, setting the engine on fire... etc. IMG_1088.JPG [more]

 

??/??/11

After this happened I considered just rebuilding the RB26 (stock rebuild or forged I wasn't sure) since it would be considerably cheaper than getting the RB30 block built, but eventually decided to just go ahead and do the RB30 since it was just sitting there collecting dust and would make the car more unique in the end. So off everything went to the machine shop with a few goodies I had been collecting throughout the years.

 

Specs

 

The head:

-Manley 1mm over-sized intake valves (11164-12)

-Manley springs/ Ti retainers/ locks (26175K)

-Supertech Bronze valve guides (GDE-NSR6-I in, GDE-NSR7-ET ex)

-Tomei Solid Lifters (163005)

-Tomei ProCam 280/11.5mm cams (1421280115 in, 422280115 ex) [pics]

-Tomei Cam Gears (152009 in, 152010 ex)

-Machined to accommodate the large cams

-Cometic RB26 87mm 1mm MLS head gasket (C4320-040)

 

The block:

-Decked

-Bored .020" over

-Crank collar installed on crank

-CP 9.0:1 Compression Pistons / Rings (RB30/RB26-020-9.0)

-Forged mystery rods w/ ARP-2000 bolts [pics]

-ACL Race Main/Rod Bearings (7M2394H-STD main, 6B2390H-STD rod)

-Dual Tensioner setup

-Gates PowerGrip 1" x 47 7/8" 152 Teeth Timing Belt (T291)

-ARP RB25 Head studs (202-4301)

-ATI Super Damper (916065 RB Hub, 917020 7" 2-ring Damper, 916744 RB Water Pump Pulley, 950200 Bolt kit, 916631 Dry Sump Mandrel) [pics]

-Nissan N1 Water Pump

-Dry sumped

 

Dry Sump:

-NRC 4 Stage Dry Sump Pump (10545-A)

-Peterson 34 Tooth HTD Pulley

-18 Tooth HTD Crank

-Patterson 3 Gallon Dry Sump Tank (TP-3)

-Dry Sump Belt TBD

-Custom Bracket TBD

-Custom Pan TBD

-Custom Lines TBD

-Nissan N1 Oil Pump (Modified to remove gears)

 

8/11/11 Currently the head is fully assembled but the block is bare (I just painted it on Tuesday after picking it up) so I will post assembly, dry sump, and installation progress as things go on.

Edited by synthtk
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Your sig block says your running AEM EMS. how do you like it? Did it plug into the stock harness? or did you need to make a custon one?

 

I have had little to no problems with the AEM, I have been running it for a few years. The new Series2 EMSs are even nicer. I got the PnP EMS for the Skyline and it plugged right into the stock harness. At first I got it up and running on the MAFs setup then switched to MAP and then started weeding out most of the harness that I didn't need. The base map was surprisingly good for getting the car running.

 

If I had to do it all over again and had a bit more dispensable income some of my tuner friends would insist I got a Motec... but they can be quite spendy.

 

 

8/15/11 Nothing on the block so far, just went to Napa to pick up 6 7/8" freeze plugs for the water channel right along the top of the block. They should be 22mm but it seems all but impossible to find a set of brass 22mm freeze plugs, hopefully the 7/8" ones will work fine. For anyone wondering you also need 12 30mm freeze plugs for RB blocks. I have never seen so many freeze plugs on a block before...

 

In other news, I should be working on the block Friday so will have pics/updates this weekend. I will also take some pictures of the chassis, it is getting a 10pt cage installed currently.

 

I also added a bunch of pictures to my Picasa site, including these fun ones showing the damage done to the RB26 (note these were taken after I hosed off all of the fire extenquisher mess). [pics of damage] but here is a fun one shot shortly after the fire IMG_7711small.jpg

Edited by synthtk
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What caught on fire? blowby push some seals out or something?

 

The blow-by from the melted piston blew off the PCV hose I had on the valve cover, which then started spraying oil all over the turbo and downpipe.

 

I didn't even notice the fire at first I was more concerned why 2/3 down the track it went pop, got all squirrelly (probably from dumping oil and then going over it on the slicks) and lost power... as I was coasting down the return later people started to yell fire and then noticed small wisps of smoke coming out of the hood and wheel wells, thankfully I had an extinguisher. The fire damage actually is pretty minimal, most of the hoses and wiring in that area were wrapped in heat wrap, a few wires got a bit crispy but everything still works.

 

Side note, it was the fastest run I did that day :) I did a 10.8@low 100s (will have to look at the timeslip when I get home)

 

Also needless to say I will be securing those hoses better this time around haha.

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  • 5 months later...

Quick update: RB30 project isn't dead, just had a slight mishap assembling the block so the RB30 had to go back to the machine shop, will update the main post later tonight or tomorrow. I also have had been distracted with getting my 240sx/LS1 swap legalized and picked up a Factory Five GTM supercar kit half completed so have been working on that.

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Guess you can't edit posts that are older than a certain amount of time? That is a bummer.

 

Some pictures of the parts in the first post, like the dry sump pump, tank and gears. [pics]

 

8/19/2011 Went to my friends shop to start the short block assembly. Didn't really get too far as I was working on my S14 LS1 AC system a bit at the same time. Also checking clearances on the rings and bearings is quite time consuming.

RB30%2520Block%2520Assembly%2520003.JPG[more]

 

9/10/2011 Went to my friends shop to work on the short block more. Hung the pistons on the rods and started to install the pistons. I was doing the assembly by myself which in hind sight I should have asked for some assistance because trying to tap in the piston while holding the ring compressor flat against the deck didn't go so well. While taping them in the edge of the compressor must have lifted off of the surface and the very very thin oil control ring popped up and proceded to fold up the edge of the piston and ended up scratching the freshly honed bore. So, it was now time to pull out the pistons I had in there out, the crank, head studs, bearings, etc and send it back to the machine shop to be checked.

RB30%2520Block%2520Assembly%2520016.JPGRB30%2520Block%2520Assembly%2520017.JPG[more]

 

On a side note was able to see more progress of the cage and take some pics. Overall I am happy with how it is coming out, but my friend and I both wish I would have just bought raw material and have him bend up the pipes rather than buying a "kit" as it fits very loose. I already had a custom main hoop made since the kit hoop was inset about 2-3" on each side. Cage%2520002.JPG [more]

 

1/28/2011 Heard from my friend that the machine shop finally got a chance to check out the block and he thinks he can just hone out the scratch, previously he was worried it would be too deep and he would have to replace the sleeve (sadly a cheaper and easier option than doing an overbore and getting new pistons).

Edited by synthtk
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It would be for the s14 trans swap connected to l28et. I need to have the 280zx bellhousing work done so that I can go this trans swap route.

 

I don't really know anyone that would do something like that unfortunately. Do you have a list of what needs to be done? I could ask my friend if he knows anyone.

 

 

WOw....lots to catch up on reading here. Great progress and I'm digging your stable builds too ! I would really enjoy a meet next time I'm down south in S.D. if your up to it. I just towed my S30 1800 miles from the midwest to Laguna. Brought the RB26 and drivetrain along too.

 

Sounds good. Just let me know when you will be in SD next and we can try to work something out.

Edited by synthtk
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Thanks to member (Nigel), here is his great write up on the requirements for the bellhousing mods: http://www.motortopia.com/album/14041

 

Pics showing the (1)stock 280zx bellhousing specs,(2) then the three required parts that need to be milled,(3) and lastly an example of the bh going through the motions. Not trying to jack your thread, but always looking for a good suggestion for a machine shop. I have stopped into a shop or two in the El cajon area.

post-736-048773600 1327973654_thumb.jpg

post-736-091669700 1327973689_thumb.jpg

post-736-044311500 1327973788_thumb.jpg

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