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five&dime

Z31 N/A RB project

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That's right... You guys got hammered in this last storm, didn't you? We got nothing other than a couple clouds. One of those rare storms that goes south of PA and is still cold enough to snow. How does that Bimmer handle in the snow?   :ph34r:

My basic curiosity question about the seam work your guy is intending to do is... "Is he welding, or is he brazing?" If he whips out a torch (either an O-A rig or a TIG setup) then he's brazing. But if he loads a spool of that silicon bronze wire onto a MIG machine, then I'm not sure what he's doing. He'll know though.

In any event, pics or it didn't happen.   LOL 

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My body guy said it will be welded and is the same way that new Porsche's are put together. I told him I would love to get over there while he works with my good camera to catch some actual welding photos. 

Edited by five&dime
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Got myself a rear rare JDM bird. 1987 HR31 Nissan Skyline GTS-X. Bought it from a guy I know who has owned it for the last 2 years. With the 80's cars on the rise, I felt like this would be a good investment opportunity that I can enjoy for a bit while I refresh it. Overall it is in good shape and the guy has some spare body parts like bumper, grill and grill under trim section etc. Interior is in amazing shape. Big turbo RB20, exhaust, Fortune Auto coilovers, Volk wheels, 5 lug conversion, S13 front control arms, rare solid R31 rear bushings with HICAS delete, R32/Z32 brakes. I know the guys at Japanese Classics and out of all the cars they have brought over, 1500 were R32's and they have only been able to get 2 R31's! 

 

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Edited by five&dime
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Last pieces of the puzzle for the engine arrived. CP Carillo custom made high compression 11.6:1 pistons with WPC treated sides for better oil retention/friction reduction and ceramic coated domes for better thermal capacity. Should further help prevent detonation with pump gas. The lifter shims were the other pieces needed to finish the head. 

Here is the final rundown on the engine

RB25de block bored to 87mm

RB26dett NOS head with machined combustion chamber and port/polish

87mm CP 11.6:1 Pistons/wrist pins and rings

Nitto H beam rods

Nitto 77.7mm billet stroker 2.8L crank

Tomei 272 10.25 cams

Tomei adjustable cam gears

Tomei lifters

Tomei berrylium copper valve seats

Supertech oversized valves

Supertech dual 243lb springs

Ti retainers

R34 GTR N1 oil pump with Spool billet gears

R34 GTR N1 water pump

Negun Z31/RB oil pan

Haltec 2500 ECU

Ross hall sensor crank fire trigger wheel setup

Also including a few updated shots of the Skyline as I refresh it. Waiting on my friends at Japan Parts Service to find me a 4th R32 wheel so I can sell these Rays/Volks. So far I raised the suspension up, removed the tint, put the stock shift knob back on, found a used stock steering wheel that's on the way along with a used non pitted front grill and non broken front bumper/headlight trim piece. Just trying to get it looking really clean and address any little issues, fixing rattles etc. The plan is to hold onto it for a bit while the 80's-90's car continue to climb and cash out for profit since these R31's are so rare. As the new chassis's become available here in the states, the older ones continue to climb in price. 

 

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Edited by five&dime

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On 1/30/2019 at 7:52 PM, five&dime said:

Dropped the last of the engine parts off with the machinist. And some updates on the engine bay seam welding. 

 

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Did you ever get's any pics of the welding in progress? I am interested to see how that was done and what materials were used.

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I didn't get any of the expert welder in process. The body guy told me they used hardened steel in some places and silicone bronze in others IIRC. They also burned out the old seam sealer. Apparently it is quite the job and they were having to hold a big metal spoon or something on the back side while welding up the mutli layer seams on the frame rails. Lot of work now but I really think it will all pay off in the end. This is the one and only car I will ever take this far. I almost backed out of the seam welding to be honest but I think this build deserves it. 

Edited by five&dime
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I went with Brandon to check on his Z31 project. We dropped off the wall sculpture for his body man to work his magic on. It’ll have new trim, quarter window, mirror, door handle and Series I emblem. It’ll hang on the wall of my office......going to be fun to see what he does with it.

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Very cool that you were able to find something new! He used a mini inverted tig welder for this but yes, he said it's very useful for the thin sheet metal. 

 

Can't wait to see the sculpture all done! He said he was going to start painting within a few weeks so it will be exciting to see color on both!

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My machinist called me yesterday to say last chance to get pics before it starts going together. 

While I was there he ran the crank on the balancer and said it's within NASCAR tolerance. He checked all the pistons and removed some weight to get them balanced and he had to slightly hone out the rods for the wrist pins. 

CP said they wanted .0015 gap from piston to deck height at TDC and with the slight decking to get the block clean, it's slightly less than that at .00135 so after he does the final flow bench test on the head to check how much improvement was made, he can put it all back together and check valve to piston clearance and worst case, I get a slightly thicker head gasket but he doesn't think it's enough of a difference to matter so we will see.

 

Body guy said I could come for photos on Monday and it sounds like the engine bay welding might be done!


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Almost forgot to add that since I sold my BMW, I bought a new daily driver beast but the really exciting addition is the 1984 Nissan Skyline Dr30 with the fj20et!! The dr30 has become my favorite classic skyline and I love the history of them. This one is R34 GTR Nurburgring Millenium jade with a glass out full respray, coilovers, bump steer spacers, Cusco bars, Nismo LSD diff, big turbo, FMIC, oil cooler, SSR FT1 wheels, r32 rear brakes, Recaro seat, Nardi wheel, super clean interior an old school Denon head unit etc etc. I had been searching Japan for a really nice stock one but this car was about as close to what I would want to build as I could imagine. I had a friend of a friend in Tokyo go inspect it in person and he said it's simply incredible and extremely well built. The guys who brokered the deal for me saw it and said the same. It should be getting on a ship here in the next week or so and then 4-5 weeks until it arrives at the port. The only issue with the car that I could see was a broken lens on the driver rear tail light, some slight fitment issue with passenger front headlight, one ding on passenger rear quarter and the hood must be fiberglass or carbon as you can see the waviness. I was incredibly lucky to find a set of brand new NOS tail lights which are honestly the most amazingly beautiful parts I have ever received for any car period. I thought they were just really clean used ones but they are brand spanking new and almost too stunning to even install. Amazing that Nissan was designing such a cool tail light design back in the early 80's! 

My only plans for the car are having the bottom half wrapped in gunmetal grey along with the RS Turbo DOHC graphics added like the typical red/black "iron mask" people are so familiar with. And although I do like those SSR wheels, I don't like them in black so will either have powdercoated or sell and get watanabe's. I also plan to remove the racing seat and maybe part of the roll cage. 

 

 

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Edited by five&dime
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Your engine is a thing beauty,  would love to hear that on startup.  Congrats on the Skyline, it always amazes the incredible condition of used cars from Japan, someone spent a lot of time and money prepping that car for you?

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Thank you! It's going to be hard waiting to fire it up but with it being so rare to have an N/A RB fully built, I am going to wait until the tuner has it on the dyno and let him start it for the first time. I have only heard video clips of the few N/A engines and they sound incredible. Such a big difference between an engine with and without the turbo which acts as a muffler. With the enlarged throttle bodies running straight velocity stacks, stiff valve springs, big valves/cams, long stroke, big bore, lighter flywheel, equal length long tube headers up to 10k redline into aluminum or titanium full exhaust system, the sound should be something like a sport bike or Indy car. 

 

Body guy said engine bay welding is finished! Sanding begins now and I should be able to get the final bare metal shots before primer. Should be painted the first week of April which probably means last week of May..

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Ignore the runs and the small imperfections. It will be final smoothed by Wednesday. Then paint soon after! Check out the before and afters. 

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I’m so excited about this Resto mod. This car is going to be sooooo incredible!!!!  Safari Gold on this jewel in 3 weeks.

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I hadn’t seen your impressive project thread — here’s some RB music to get the juices flowing:

 

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Ha! I actually reached out to them 6 months ago to make me that throttle linkage setup but it was a one off ?

 

This one sounds pretty good too. But neither had as extensive headwork so very curious to see what kind of power mine will make and how it will sound with a 10k redline! 

 

 

 

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Brand new NOS R34 Skyline RB25 5 speed transmission from Japan! And the painter sanded everything in preperation for paint. He has to do a few front alterations to fit the later years headlights, hood and bumper then should be ready to start painting!

 

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Some updates. The front end and side skirts have been mocked up. There are some slight differences where the side skirt fender mud gaurds mount to the body between the 86 and 87-89 so he will weld in a little metal there and tighten everything up. On the front, I have always hated that little rubber strip that goes between the front bumper/fenders and the bumper/hood. He will modify the bumper and relocate the mounting tabs to the fenders as well as slot the mounts from bumper to hood. Then the surfaces will mate up to each other like they should have. I also have always felt the rear bumper is far too long so he sectioned out 1.5" and will bring in the back half to the first step down on the top surface. It already looks so much better than stock without sacrificing the stock lines. 

 

The engine is together and we are good with piston to valve clearance with cam gears at 0. Now he will try and and set them more aggressively at maybe 3-4 and check again. Going to try some Mikuni velocity stacks on the RB26 throttle bodies since I found some with the same bore and only 5mm difference on bolt spacing. Should be able to slot the holes and have an off the shelf solution.

 

I had the front cross member and torsion bar brackets powdercoated along with the port and polished intake manifold. I realized afterwards that I should have gotten the later 87-89 torsion bar brackets done because they are of a far superior design but that's easy. 

 

Lastly, since I lost all of my detailed and meticulous dissasembly photos, I have been searching for a junker to basically dissasemble as I put my car back together. Plenty of parts I could use as well so in my daily searches for the past year plus, I finally found a 87-89 300zx that was local, manual and $500 or less so I had to buy it! I call it winky. 

 

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