duffymahoney

Thank you. Honestly the paint job (70s respray )is $^!#. But makes me want to drive it more. I doubt I will ever repaint it. This company did the coating http://www.performancecoatings.com/

Thank you. I am trying to make whatever i do as nice as it can be done. By a hobbyist .The interia switch was actually the first hole I have drilled in my z. It worried me a little. I screwed up the the butterfly’s a little on the Mikuni’s. They are now all set pretty perfect. I can see a sliver of light when closed. The heat shield I bought doesn’t fit. Weirdly the carbs stay nice and cool. My header is ceramic coated. Maybe that’s enough? Also the header design keeps the pipes pretty far away from the carbs. Thoughts? Anyone? Next goals. Next is taking the starter apart and zinc, vapor blast and paint it. Re zinc the horns, they have over spray on them. Pull oil pan, powder coat and re zinc all the bolts

Some pictures of the fuel pump install.

So my 3 best mikuni 44's didn't have the same patina, these had been rebuilt by a legend. I made the decision to try and take them 95% apart myself, vapor blast and put them back together. Honestly most of the process made perfect sense. I am pretty detail oriented, so I just took my time and took lots of pictures. The throttle shafts and pins are the hardest part. So far the only thing I think i screwed up is one of the butterfly valves isn't seated 100%. I am going to take each carb off and double check no light passes by when closed. I am getting a high idle, which I believe is from that. I installed a nismo fuel pump with my 73 bracket, bolted right in. Hoses were easy to install. I installed a inertia switch/ rollover switch for the electric fuel pump (factory used a oil pressure switch). Since I have it attached to the stock spot on the ignition. Also a 14amp fuse. Looks factory. I wanted to use the stock fuel rail, I like the way it looks. I also re- zinc'd a bunch of smalls for the intake and carbs. So far I am very happy with how they sound. Now time to sell my z therapy carbs. Don't judge the fuel fitting. The correct one is on order.

That's a much nicer cabinet. Mine is a pile of junk:)

I got a new gun/ nozzle system. I accidentally bought two so if anyone wants one let me know. Hose is now 3/4 for the slurry pump, air is 5/8. So much much bigger. Hopefully moves a lot more slurry. Also the nozzle tip can be changed out. It can be 4,5,6,8,10, 12 and 14mm. I found the nozzle by doing some youtube stalking of vapor honing stuff. I kind of feel bad about it.

Message me, I have a new check valves and diaphragm for your fuel pump.

It’s mostly submerged. The pump is a little tall for my cabinet. Manufacture claims the trash pump can handle just about anything. Also I know that this is the same pump the pro cabinets use. If I was to do this a lot I would just buy a vapor honing system. They are nicely made and take the guesswork out. I think stainless cabinet would be much nicer.

My gun has a max 3/8 fitting. So I have 3/8 hose from the gun to the pump. The pump has a 2" to a 3/4" NPT adapter. Then a 3/4 NPT to 3/8th hose barb. Then air, lots of air. I run like 120 psi through my hose.

I bought two. The first was this one. https://www.supplyhouse.com/sh/control/product/~product_id=506274 It gets amazing reviews, but the manufacture told me it wouldn't last that long in the vapor environment. I am now using this. It's called a trash pump and this is actually the unit a few vapor cabinet builders are using. Only issue is't pretty big. https://www.amazon.com/gp/product/B000PDU9EY/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1 It's not as powerful as my original pump, but it sits in my cabinet and mixes the slurry on it's own, so results are pretty much the same. It's nicer on my hands as well.

Got a new pump. It goes in the cabinet. It’s called a trash pump. It does a much better job of keeping the slurry mixed. It’s designed to pump up to 50% solids and can pump sand and silt. Works awesome. Only issue is it’s not as powerful. So I turned the air up slightly. Honestly man hands like the less pressure. Before vapor blasting for an hour and my hands would be very sore. M brass comes out perfect with vapor.

Copied from another thread. "Nismo" Mikuni / Solex 44 (Type 5). These tend to be known as Nismo colloquially because they were offered through Nismo catalogs in the late 70s, early 80s in North American markets. They have the externally adjustable float with the provision for it to be mounted on either side (dual fuel feed lid), unlike regular s5's. They also came with larger outer venturis too. https://www.viczcar.com/forum/topic/15654-mikuni-carburettor-id-thread-phh/

I luckily don't live in an area that aluminum changes very fast. Most of my stuff even on my daily driver looks fine and clean. Winter road chemicals suck though, but the z will never see those.

Nothing. This is just raw. I guess this lasts longer then just milled or cast. I don't plan on driving my z in the rain or snow, so I assume it will look good for a long while. I found out the slurry pump should be a flexible impeller style pump.

Well traded my harada for a more period correct SK intake. This might be one of my favorite triple intakes. Allows me to run stock linkage. I got all new parts for it through OER. Should look very nice when done.

Well ruined another pump, I need to find something better. Some small that is high pressure and can take the tiny particles on a shaft. I believe they are my issue . I got this Sk intake looking pretty before the pump started to leak:( It looked pretty nice before, so it cleaned easily.

Good start to a race car:)

Hung has a rebuilt set. He is in your area.

There is a great facebook group for mikuni guys. Maybe ask there?

Time to start setting up the triple carbs. I smooth ported the intake to 120 grit. Having fun!

My system works fine. I just mix the slurry by spraying it. A bigger cabinet would be nice. Since a L6 Head barely fits.

There are tons of websites for blasting stuff. Very little actually has to do with vapor/ water honing or whatever people call it. I got lucky and the vapor honing guy gave me some secrets. That's why mine works so well. Next best thing would be some sort of slurry pre mix machine. You could go nicer on the pump, but all pumps wear out. Something that could be rebuilt would be nice. The reason I picked this pump, is because it's easier to pull apart then my last one.

I deal with pumps for a living. Any high end aerator style bump would be good. The amazon one I got is about perfect. I have a super high end water one that I could use. It’s just a giant overkill.

My overall goal when going triples is to keep it period correct as possible or at least looking period correct. This is a 73 bracket and a 70-73 Nismo electric fuel pump. I guess it could have been ordered as early as 70. I believe it should bolt right on with zero modifications. Bracket is powder coated and pump is NOS.