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five&dime

Z31 N/A RB project

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I have to trust the tuner and the power numbers would probably be very similar. However, with higher compression I at least have the ability to run race gas or E85 if he decides to make a tune for that. He can even have a switchable dual tune for either. 

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Machinist is currently working on the engine this eve and said the piston mold should be done tomorrow or Sunday. 

Stopped by the body shop to drop off some parts and took some photos of my own. It looks fantastic! The next updates should be good stuff!

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The car isn't primed yet. He was trying to wrap up another car that's just about done. I will have primed pics tomorrow. Fenders are rolled and pushed out 3mm for extra tire clearance all while keeping the flat edge!

Piston mold is done and ready to send off to CP. He finished doing the port and polish on the intake manifold to match the head and over bored RB26 ITB's. Lastly, I got the N1 R34 GTR oil pump, Spool gears and the Haltech 2500 ECU. I also ordered Tomei adjustable cam gears. 

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CP Carrillo pistons have been ordered with expedited delivery. Custom 12:1 oversized 87mm pistons with WPC treatment which is interesting stuff. Micro particle high pressure shot peening. I am going to double check with CP this week on whether they want to do WPC on the full piston or a combo of WPC on the sidewalls/ceramic on top etc. The micro blasting greatly helps with oil retention and friction reduction but my main goal for the top/dome is to keep temperatures down to reduce the chance of detonation with 12:1 on pump gas. They are moving the wrist pin location slightly and these include the pins/rings. 2-3 weeks lead time on the pistons and the machinist is currently assembling the head. He removed some material for the larger cams to clearance and now just needs to finish assembling the valvetrain so we can determine what shims for the Tomei solid upgraded lifters. The engine should be together within the next 2 months! 

I found a company in Australia that built an amazing 400hp S30 with a built N/A RB30 running 14:1. They created a really nice throttle linkage setup and a guy who follows me on Instagram knows them personally and is trying to get me a deal on that so we don't have to try and reinvent the wheel. I can't use the stock setup because it mounts onto the intake plenum which will not be used. Not to mention the fact that the OE setup is bulky and not very pretty. 

 

The car has now been epoxy and fill primed. Next he will start shaving the engine bay then he will prime that, the jams, the cargo floor, modify the front and rear bumpers and then start shooting color!!

 

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Edited by five&dime

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Engine bay shaving well under way. 98% of all holes, all protruding sheet metal will be welded up and all of the brackets removed. Every electrical component for the engine will be relocated and displayed as a feature in the cargo bay. 

 

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80% of the metal work is done in the bay now. All access, AC, wire loom tab, wire harness, battery and mounting holes are welded up. The main harness will be all new with a multi pin bulkhead connector. Even the wiper motor will get a mini bulkhead so that the bay will be modular and easily stripped down. The body guy is going to cut access holes on the other side of the upper rail so that I can snake everything through and get to the hood release cable. It should look incredibly clean when he primes in a week or so. He said it will likely be ready for paint by mid to late January. 

The restored tail lights are finished too and came out even better than I could have expected. Sanded smooth, polished and Xpel clear wrap.

Machinist is assembling the head to check for lifter shim clearance and once those are ordered, the head will be complete. All the small components for the short block are on order and the final items for long block assembly will be ordered next week. CP is working with the mold now to design and CNC the custom 12:1 compression pistons which will be WPC treated on the skirts and ceramic coated on the dome. The engine should be complete by the end of January.

 

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Thank you! It's really exciting seeing it progress at this stage. 

This is the first time I have ever gone this far with a car and I am excited to see the end result. I tried to clean up my old 510 bay as best as I can but this time I want to go more like this Z32 which is the most amazing looking engine bay I have seen in a long time. 

The body guy has my bay down to bare metal and is just finishing up a few more things before it gets primed, filled and then primed again.

 

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Edited by five&dime
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This will be an epic car when it's finished! Looking forward to the trophy pics!

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Thank you, Mark! It's getting close'ish! 

Next up is welding all the engine bay sheet metal seams for the inner fenders, shock towers, firewall and lower frame rails with silicone bronze and then smoothing. This is something my body guy has gotten really excited about and you can tell when talking to him. He has always wanted to do a full show engine bay. It will look just like that Z32 bay with everything nice and clean. Once that is all done the primer will go on before the exterior of the car is painted and then Xpel clear wrapped for protection. I plan to test fit everything in the engine bay and start the rest of the car's reassembly. I will then have my friend tow the car back over there to have the bay base/cleared after we get the engine, wiring and plumbing all mocked up and then pulled back out so there is no real risk of damage to the final product.

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Because it bonds to anything and flows under low heat with high tensile strength.

 

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I had other theories: didn't want to weld everything solid or it was easier to shape down the excess weld

Thanks, Wheee!

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Just a public service announcement to make sure we're all talking about the same stuff...

This is silicon bronze:
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But THIS is silicone bronze:

ball-and-chain-bronze_4_10.jpg

I'm Captain Obvious, and I approve this message.

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LOL! Yeah, that wire is to run through a MIG. I've never used it, but that's what it's designed for. What isn't clear to me though is exactly the application. I was aware of the process of using silicon bronze being used as a brazing filler, but I never knew it was also used in a welding operation... Especially MIG. (My rudimentary understanding being the basic difference being in brazing, you do not melt the parent materials, but in welding you do melt the parent material.)

So in the few cycles of web searching that I did, I saw that silicon bronze MIG wire being used as welding filler when welding copper alloys together. I did not, however, see it being used to "weld" two steel pieces together.

So in the end I really don't know what the guy doing the work on five&dime's car is really intending to do on the car, but that's not important as long as he knows. If forced to guess, I was thinking he was going to whip out the torch and braze some silicon bronze into the previously spot welded seams on the chassis and then grind them smoother. The tight seams should encourage a good wick of the brazing material to be sucked into the gap and provide the strength needed to allow reduce the thickness of the materials with the grinder.

But that's all speculation on my part. For all I know, he's going to hit it with the MIG with a spool of that bronze wire in it. I'm way beyond my area of expertise.

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All I know is that my body guy decided to bring in someone else to do this portion. He said the guy is a nuclear welder and the most experienced he knows. He wanted to factor in flex etc to make sure the paint would not crack. He assured me 100% that it would last and that I would be happy with the end result. Given the work so far, I trust his judgment. And as I said before, it's always a plus when the guy doing the work gets really excited about something like this. 

 

Thought I would also share an update on my other project car. The feature in Performance BMW magazine is finally out. US copies should be in stores soon.

 

If anyone never read the Petrolicious article, here it is too. 

 

https://petrolicious.com/articles/this-engine-swapped-six-speed-sedan-is-the-m7-that-bmw-never-built

 

For any who don't know, it's a 2001 BMW 740 M sport that I got from the original owner. 38k miles. I had a friend build an M5 S62 V8 before another friend swapped in the rebuilt engine, ESS supercharger, M5 6 speed, M5 diff with 4 clutch upgrade, 750 rear subframe with upgraded brakes, Brembo front BBK with 2 piece rotors, Bilstein HD shocks, H&R springs, UUC sway bars, modern BMW navigation/idrive, wrapped up with a custom dyed interior from tan to caramel/black. 

 

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Edited by five&dime
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11 hours ago, five&dime said:

All I know is that my body guy decided to bring in someone else to do this portion. He said the guy is a nuclear welder and the most experienced he knows.

Well don't get me wrong. I'm not questioning any of the decisions about the planned process and it sounds very interesting. I just don't understand it completely. 

Pics of the process would be cool. (Not that you like to take pics of the work in process or anything!   LOL  )

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1 hour ago, Captain Obvious said:

Well don't get me wrong. I'm not questioning any of the decisions about the planned process and it sounds very interesting. I just don't understand it completely. 

Pics of the process would be cool. (Not that you like to take pics of the work in process or anything!   LOL  )

I think pictures would be excellent. I would love to learn the how's and why's...

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I think I can manage on the pictures ? And now I am very interested about this as well and will have to ask some more questions. I hope to shoot over there while he is working too so I can capture some process photos this week. If this snow ever melts!!

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