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Been a while since I posted any updates. Been moving along. For the Turbo car I decided to build my own wheels. Ill CNC machine the center sections myself and have the lips and barrels spun for me. I really like the old SSR RS8 wheels but finding them in the correct bolt pattern, offset, and caliper clearance is impossible. I fould a set close, from Japan and had them shipped over. Since this car uses Z31 hubs and such, the spacing is out much more than a standard Z so I need a bit more positive offset. I dissasembled the wheels and scanned the center section into my computer and reverse engineered the shape. Next I re-assembled them and had the 245-45-16 tires Im going to use mounted. I test fitted them to the car, and close, but not good enough. This is the fist time this chassis has been rolling on its own wheels in 27 years. Its been on a cart or a lift. Felt good to see some progress now that the suspension, brakes, and cross-memeber are finally complete Scanned this complete assembly and put it in CAD. Now I have the exact shape of the tire on the rim. Cool cross section of it. Finally I scanned the side of the car, put it into CAD. Now I can adjust my wheel center offset for caliper clearance, and adjust it to work with new Lips and Barrels I will order for the proper offset and fit to the car. Having it in CAD alowed me to look at it from every angle and check all clearances, for calipers, springs wheels lip, ect. Even compressing the suspension to make sure I have fender clearance at full travel Final wheel spec is: Rear - 5 lug = 245-45-16 on 8.5" width rim- 27mm positive offset, 2.25" outer lip on the rim Front - 5 lug = 245-45-16 on 8.5" width rim - 31mm positive offset 1.75" outer lip on the rim Next I need to find some time to program the CNC and start cutting chips. But I got distracted on the NA car, so that update is next.

Hi everyone, I am at a good point with my build and wanted to share its history since its one of the few running and driving VQ37 swapped Zs in the country. I am going on over a decade of ownership. I originally bought the car from New Mexico and brought it over to Colorado. Come to find out, it was once a Colorado car also. I picked it up in primer with a rebuilt engine but not really knowing too much about it since all I had were photos and the owners word. The previous owner used it for autocross. The entire interior was missing and it had a rats nest for wiring. I remember it had a switch to manually turn on the fans. It also had a full radiator support and driver side frame rail replacement from a donor Z. I got lucky that this was done really well, I have had no problems getting the car aligned over the years and it drives straight! I saved some money and got the car painted in black, the car was originally a yellow car. The painter actually welded in floor boards and frame rails and closed up the wheel wells from where they were cut for the ZG flares. The rear hatch had to get replaced since it had an inch of bondo over the key hole. Luckily, I was able to track a hatch from a 240Z in the junk yard (when is the last time you have seen that haha). I added sound deadner to the interior and then took the car to an upholstery shop to get the interior put it. I also added some nice gauges. I was able to source some cheap Watanabe 16 inch wheels from yahoo auction Japan. They were different colors but I ended up paying around 900 usd after air shipping them spent another 300 getting them powder coated. I also picked up my Recaro seats from Japan. To this day I have no idea what car they came from but they are one of my favorite parts of the car. The SUs where swapped out for a triple Mikuni 44s. I drove with those and even had them tuned but they were too finnicky at altitude. During this time I got into flipping carbs for resale. I didn't want to deal with the Mikunis and decided to swap to fuel injection. I ended going Jenvey ITBs on Haltech. This setup actually worked great for about a year and even made it to the main page of my local Cars and Coffee. Around that summer I started to develop some running problems where I was running too rich. On my way to the tuner the worst thing happened. The car caught fire. From what I could tell, the itbs backfired and caught the fuel line on fire. If anyone is running itbs on an L Series, I highly recommend an airbox. I got really lucky since a guy like 2 cars back behind me had a fire extinguisher and that the radiator hose blew and stopped the fire. I sent the car over to my tuner/builder and waited on my insurance adjuster to visit the car. I was able to get a full payout through Hagerty and that kickstarted the funds to get my Z back on the road again. I knew I was done with L series. I never really wanted to build something that close to race car since I mostly drive my Z on the streets and occasional canyons. I wanted to stick something Nissan that could remain relatively stock. Something I could start up and just drive. In the past I almost swapped VQ35HR motor and have always had that build in the back on my mind but I noticed that the engines were almost the same price as the bigger brother VQ37. So I went with a VQ37 out of an automatic AWD G37. The reason I chose that engine was to avoid 370z's had been driven hard and the auto engines were cheaper with less mileage. The only change to the block that I needed was a lower oil pan from a RWD VQ and its bolts. I sourced a transmission directly from Nissan since at that time it was actually only about 500 dollars more compared to a used transmission. I looked recently and it seems like the transmission have doubled in price since 2021 when I bought mine. Here are the photos of when I got her back. We ended up putting some flake in the engine bay since I grew up loving lowriders. I also installed a GTR intake conversion. It ended up being a bit of a hassle since the custom fuel rail didn't clear the injectors. We had to extend the fuel ports on the fuel rail to make them taller so that it could clear. I added a catch can since the car is set to vent to atmosphere. I pulled the headers and stripped them and cerakoted them also. The custom hood didn't make it out of the fire so I went carbon fiber. Next I ended up getting the intakes extended to the front of the car to make it a true cold air intake. I recently took the Z engine harness apart and reloomed it and fixed one of my turn signals. Come to find out one of the wires was cut off. With the help of Dave Irwin, I was able to track down all of my missing grounds and also why both lights would blink at the same time (bad switch). I had an extra parts turn signal switch which I harvested and was able to get everything to work out. I recently tackled getting my horn to work. I have never got it to work since my entire ownership. The guys at classiczcar forum really helped me trouble shoot it. Come to find out, my only horn didn't work and for some reason my steering rack wasn't grounded. This is pretty much where the car is now. I took her to a local car meet today and I am hoping to just get more seat time with her. If anyone has any questions about the car or the swap feel free to message me.

Thanks for the replies and comments. Time is always an issue, however Im at the age now where my daughter is 26 years old and working full time. Been married 30 years so the wife is obviously understanding of my hobbies. Hopefully continuing to make progress regularily. Hoping more people come back to the forum and participate in the community. Here is a picture of me and my daughter when she was probably 2ish years old, same car Im working on now. I need to get her back in the shop for a new photo - Time flies

if anyone's still tracking this build I have what might be a last update since the car is mostly done (lol is it ever done?). I finally cad-designed the front fenders and then had a local shop 3D print the parts, then took that to a bodyshop to integrate into the existing fender part and paint it. After that I overlayed the inside walls of it with carbon fiber for added stiffness and protection. I also cut the lower part of the rear fenders and put in a horizontal cf winglet to better extract air. Overall I think it looks great and the resulting new parts helps downforce a ton by extracting air from the wheel wells.

Since that broken rear differential a lot has happened.

Next order of business was electric fan and shroud, and radiator hoses. I chose the 2016-2019 Camaro single SPAL 18" fan. it will be PWM controlled and is a very popular choice according to the internet as it can flow 5000CFM. Although I cut up the factory shroud to "work" I felt like I needed something fancier. modeled up a base to start working from and had my friends at laserbros in NC laser cut and bend it up. Should have gone one or two AWG thicker so added some bracing as well as some mounts and very happy with the final product. Cut down the radiator and inlets and outlets on the engine and welded on some -16an bungs, made up a couple hoses. in the last photo of the "hose installed" you can see the end of the pipe for the intake I welded into the chassis I mentioned in the previous post. Also decided to move the alternator to the other side of the engine to get it away from the heat. When i pull the engine to paint the bay i'll design and make a bracket to permanently mount it over there.

I just wanted to share something pretty exciting in my world. 5 weeks ago I overheard a friend talking about how hard it was to get any machine work done. And it hit me..... I know how to rebuild heads I just need equipment. Did some research and found that 4 of the main shops in the area have sold out or retired. Told the idea to my father in law. And was just spit balling with him. I dont have the cash to start anything and it was just an idea.. well he gave me and my wife a rather large gift and I have now bought a storm vulcan 85b blockmaster and a winona van norman Ph-2000L valve ane seat machine. Still need a valve grinder and obviously tons of tooling. But im excited to see where God takes this. Been 25 years since ive done and work but am excited to get back into it. Plan to get the surfacer going and try to drum up some buisness to make some income to buy more tooling. I onoe they are not the best machines bit they are functional. Just wanted to share

Hi,guys, after one year off with other work, i put back the engine with reground camshafts, and ready for new start !😅 Wait and see ,and Happy new year

My custom made 3d printed aero hood latches are mounted.

Got a little more work done. Started getting the front end together. headlights wired up. have new corner markers on the way and need to come up with a grill and turn signal. Bent up some brake line templates and headed to the parts store to try and get some pre bent heater hose. was a successful journey. got a u bend that worked for both hoses perfectly. Got the hoses on. pressure tested for leaks. found one small one at the turbo. fixed it. filled and bled the cooling system. Got the fan hooked up to the ECU thru PWM, and man does this fan flow some air. turned all the way up it might move the car like a fan boat. haha. I had it running while playing with the tune at 35% duty cycle and it CLT stayed at 172ºF when it was 85ºF in the shop so i was happy about that. will play with setting once i can get it on the road. I made the alternator bracket to move it to the driver side but having a little issue with belt routing. Currently did get a belt on but the tensioner doesn't have enough movement to work how I'd like so I'll reevaluate this later. Belt is tight and spins everything so I can run it this way for now and figure something else out later. I have the same alternator on my other car but on the passenger side so worst case I can probably get away with moving it back over there. just was trying to avoid the heat from the turbo. Also got the brakes bled. I'm real close to taking it for a spin around the neighborhood. Going to try and get the edged around the windows sanded and buffed this week so i can put the glass back in.

I finally had some time this weekend to work on the Z again and finish off some of the little things that where nagging me. I finished my DIY door card project and got them installed in the car. I must say that they turned out pretty good. The only finishing piece would be to add the wood trim back in but I would have to make one myself. A few weeks ago I managed to pic up a set of Euro taillights from an original Dutch 260z that where in excellent condition. So with the remaining time I had that day I quickly switched them out. Yesterday there was a small all Nissan/Datsun meet I attended which gave me the opportunity to compare my Z with others and do up some inspiration for future modifications. Afterwards I finally had the time to take some proper pictures of the car (with the car not half apart) and cruise along the dikes. WhatsApp Video 2026-07-13 at 09.15.40.mp4

Love the way this is coming out. its been a challenging balance to thread between making everything neat and tidy and making sure I remember its a race car and needs to be functional. decided to polish the intake manifold and turbo, which looks great but upkeep is gonna be a challenge. exhaust is mostly done and welded. need to make a fancy tip for the back. wrapped the downpipe and mid pipe. need to pull the manifold and wrap that too. originally made a open dump wastegate but then changed it up to recirc it because we have a couple tracks with some noise restrictions. I'll order another v band and wastegate outlet so i can cap the exhaust and run it open if the track doesn't have a dB restriction. Fuel system is done. bulkheaded thru the floor. 3d printed some mounts and have it mounted along the floor. injectors are in. got most of the turbo lines made up. opted for the turbosmart oil pressure regulator for the turbo. i've never dealt with a turbo this small and man its a challenge to fit everything. drain is really tight. hits v band and clamp but think i may have the puzzle solved to make it work. fuel fill is welded up. went with stainless to mitigate the risk of corrosion with ethanol.

Was not implying that the only way to get work done on a project is to not have a wife and daughter!!! I can see how that could have come across. Mine is 14 and will be a freshman this year. Ive got 4 years..... Then who knows. As she has gotten older I've been telling the stories of her helping me in the shop when she was little. Her stepping into a drain pan full of oil in ugg boots that I promptly threw away with out telling mom, Me hearing a pppsshhhh noise and I turn around to see her with a my blow torch pointed at her face, Praise the Lord she didnt click the igniter She would have been around 2 also at those times.

Been spending alot of time getting the chassis on the NA car cleaned up and ready for paint. Its a super clean almost a no rust car, so I want to strip it completly bare, metal prep it, straighten the floor pans which are really clean just slightly dented from wrong jack points. I started out by stripping everthing off and making digitized and CAD files of all the tar flooring. You can still buy it from Nissan. I have a laser cuttter so I will use it to cut all the replacements. It is an original paint car, so it was hard going in on it. Next I put it on my rotissary I built for the Turbo car and got to work on stripping all the factory undercoating. Using a heat gun, scraper and some mineral spirits did the trick but it took a long time. All super clean original metal under the car This is what it looked like under the front fenders BEFORE cleaning, so super happy and even under the cowl all original paint

Almost got it done. Such a pain in the as* I probably should have started over, from my old ecu to this ecu wiring.

They did send me another set of control arms which was nice of them but they are also a bit short. I did make some modifications to make them work. the kit is supposed to use 8 washers per side but i needed more to align the toe adjuster up, I do have T3 spindles so that may be part of the variation I was seeing. So I machined some spacers because stacking 15 washers was not my favorite design. The spacers tightly fits over the spindle and then takes up about an inch of space and allows 5 washers for "adjustment" The guy from apex did called me and we chatted for a bit about some other design concerns I have. Which was great and he took it well. Apparently they just aren't good at measuring things. They said they are going to try and make me a shorter set of front control arms aswell because the front setup at its absolute max shortest setting is still .375" wider than the stock assembly which doesn't allow me to use any of the roll center or control arm adjustments with my wheel and tire combo. I was hoping to correct geometry with everything being adjustable but that's not the case since the crossmember mounting points are wider than the factory one so I had to max everything out to its shortest point to even fit. With that said I have been plugging away at stuff, brake lines are ran, rear suspension is in, engine is assembled. adapter kit for the trans is machined, body panels are getting put on. started on the interior, everything takes so long. painting brackets and hardware and aligning everything but i am very happy with how its coming out. I was told the car came with a 240sx diff, its actually a j30 diff so it has a 3.91 gear ratio. That may be a slight advantage so not to mad. Anyway, after all this reading. enjoy some photos.

It’s been a long week where in a lot happened, including me getting engaged to my beautiful girlfriend last week! But personal stuff aside we are here for the Z. The body shop couldn’t wait any longer and with my permission they ended up modifying the passenger side frame rail to fit. All in all they did a great job and the end product looked great and above all was very strong. As an added bonus they even gave the frame rails a new coat of underbody spray and drilled two holes in each rail to coat the inside with wax and prevent condensation buildup. This meant I could finally pick the car up last Friday after being over 4 weeks stuck in the shop. By coincidence I was free from work that day so I even got to start the reassembly of the interior starting with the dashboard. And I also quickly strayed the Apex fender braces silver to match the rest of the car. I finished reassembling the dashboard during which I had a little bracket left over. I have studied every possible parts diagram and video but I can’t seen to find where this bracket came from. It was stashed together with all the dashboard parts and bolts but unfortunately I wasn’t smart enough to take pictures of the disassembly. Does anybody know where this little bracket belongs? Anyway I decided to continue the reassembly of the dashboard and reinstall the dashboard into the car. This went rather smoothly even though installing the dashboard all by yourself is a bit of a pain. I immediately tested all the electrical components to see if all the light (which I replaced with LED’s) and gauges still worked. Everything fortunately worked except the tachometer backlight which turned out to just be a reversed polarity, which isn’t an issue for halogen bulbs but is for LED’s. This was easy enough to fix by switching two pins inside the tachometer connector. I’m now at a point where the dashboard is complete and the carpet is mainly in. Because of a national holiday I will have a four day weekend starting this Thursday. This means I can finish the interior of the car and start installing the Apex front and rear control arms, steering knuckles and front crossmember. I really hope these don’t contain manufacturing faults or else they own me a really big apology.

Long week number like 200 but happy with the my progress. Made a tweak to a color based off a cadillac cts5 v blackwing. Its a bit more "copper" tone of orange than I was picturing with the modifications but I am very happy with it. As soon as I started pulling the masked off areas and was seeing the contrast with the grey I loved it. Did get some fisheye on one door so I'll have to fix and respray that at some point and a couple sags/runs in the clear to sand out, but I can make some serious progress on the build now. did get the engine stripped down as well. Bearings, rings, valve springs and a gasket kit have been ordered to freshen it up. but otherwise everything measured out good and seems like a good starting point.

Hi everybody, long time for updates. Been quite busy with kids and a very nasty divorce going on. The good news is my garage and cars are still intact and I am still making progress, although very slowly. Car is very close to track testing. I decided to have a new pair of steering arms machined to match the front geometry. I will post more when they are finished. In the interim, I took the time to catch up on some side projects I wanted to do. With the advancement of AI, some of the projects I considered impossible a couple years ago have turned out to be quite easy now and very inexpensive. Based on Arduino technology, I have integrated a motion sensor into my data acquisition system. I use a Race Technology DL1 Club box which is limited to 8 analog sensor inputs, but can decode an almost unlimited amount of CAN signals. So I built a circuit that decodes the motion sensor and outputs a CAN signal. I now have 3-axis roll, pitch, and yaw angles along with speeds and acceleration live data. It will all be packaged in a small box that mounts in the car. Next is a infrared tire temperature monitor. A 16x4 temperature array sensor once again combined with Arduino and CAN output board. I am trying to package this as small as possible so it can be mounted on brackets roughly 4" above the tire. Again real time data of inner, middle, and outer tire temps while driving. Hopefully saves a lot of time when dialing in the camber and pressures. More to come...........

Been a long week but got everything completely stripped and got some epoxy primer layed down on all the metal surfaces. have plenty of body work to do but atleast its sealed and protected now. Hopefully in the next week or two i can get the bodywork done and get some color on it. I did talk to john and his comment is "I don’t claim to be an expert on bonding. But in my experience cracking at a bond line is often due to inadequate surface prep both the underside of the fiberglass and the underlying metal), poor bonding agent, not enough bonding agent, cheap body filler, and/or excessive flexing of the unibody. On the other hand, I know a lot of guys who do the bolt-on installation. For performance applications, it can be an advantage for working inside the wheel well". With that said I think I will spend the time to make the fitment as good as possible and make a last minute decision based on how well it fits/looks.

Carbon fiber door and door cards came in, these things are super sexy 🥰

Without the oil cooler, my water temps were never an issue. Never over 200 on track. When I put the Aviaid Mangusta pan on the car it had a provision for an oil temperature sender. Even though my water temps never got too hot on track, once I installed an oil temp gauge, I discovered that my oil temps were getting near 300F. I added the Setrab 34 row cooler, and my oil temps stay below 250F.

03-25-2026 ATLAS Z UPDATE: I got some of the fittings in I need for my crankcase pressure to catch can to intake setup. Also tall of my carbon fiber panels have been cut, final polishing on roof section then ready to ship to me and bond them on! Then make the borders shiny!

That has got to be the best balance of Form and Function of a Datsun that i have EVER Seen!! Absolutely amazing!!

Unrelated update but reasons as to why there's been a lack of updates to this thread: Got a new job that demands a lot more of my time so unfortunately less time to optimize the SLA conversion. Upside however is that I'm learning NX which seems to be some next level software. I think this design is going to take one more fundamental change to really get the dynamic geometries perfect but the work I have so far has been a pretty excellent starting point. The car is also back from the rust repair shop and the cage shop, needless to say my wallet is in a lot of pain at the moment (especially with the S54 being built) but we do these things not because they are easy but because they are hard and we hate money. Anyway, enjoy some photos of the cage in the meantime.

Got it off Amazon: https://amzn.to/4aS32Br And picked up a male pigtail off eBay: https://www.ebay.com/itm/134129914749 I actually replaced the wiper arms too. I used 93 miata arms which bolt up to the stock datsun wipers mechanism. Passenger arm is a little long so I may shorten it. For wiring, I followed this guide: https://www.electronixandmore.com/resources/automobiles/datsun/index.html Note this is very specific to the later wiring for 1978(maybe 1977 too) and would not be applicable to earlier years.

Hi All! I've owned a few s30's in the past and finally decided to build one. My car background is a lot of JDM cars including Supra's, AE86s, S13s, Skylines, a Stagea 260rs, etc. I have always loved the style of the s30 (don't we all), the aftermarket support for it and the random people who would stop me and tell me about their "Z" story. The story of this build started over a year ago when I purchased this 1978 Datsun 280z. The story behind the car (that I know of) was it is an American car that was brought to Washington and held at a speed shop awaiting restoration. Then was bought and stored in a heated warehouse for years in BC before i bought it. A little side story, I originally purchased a 1971 240z from the same person and they also had the 280z for sale but was well out of my price range. I would have loved to restore the 240z but unfortunately the amount of work it needed was well beyond my budget and experience just to get it to a useable condition. If you looked at it funny, rust would fall off the car. Mistakes we made. I was sold on what it could be but not what it will take to get there. almost a year later the 280z was still for sale, and the price was a little better. With some luck, i was able to convince the owner to trade back the 240z and cash for the 280z. Success!...Now, it seems the 280z was re-sprayed a British racing green but wasn't done the best and was flaking so i believe that's why it originally underwent the restoration in Washington. The car was just a rolling chassis, the front end had been primer epoxy'd and luckily had everything in boxes and labeled like "driver door guts", or "Rear hatch slam", which was nice to see. Now the goal of this project was to be a fun drivers, resto-mod car. It will be getting an RB26 from an r33 GTR, an RB25 transmission, DBW for the factory ITB's, Techno Toy Tuning full suspension, brakes, differential swap kit, running a Haltech S3 ECU and Wiring Specialties Harness, Poly fuel tank with an r32 skyline Radium hanger and Hellcat fuel pump. The bigger ticket items like turbo/manifold, radiator/fans, and then some smaller things are missing but most of the project is there now. I do plan of re-wiring the whole car considering I'm spending money in every other area. Now, just like anyone, I did set out with budget but considering since I last built a car, prices have gone up for parts which I stupidly didn't account for. Also a lot of, "well if i'm already doing this, then i might as well do that", and "since i have this off, i might as well get that." So the budget has been blown....but at least I'm happy! (maybe). BUT as it stands, the suspension and diff swap kit is in and the car is currently at the body shop getting the sunroof hole patched as well as some of the smaller trim holes plugged and a few small rust spots taken care of. Here are some pics throughout the build and as it stands. Any questions, advice or help for some "gotchas" will be welcome!

Great work so far! I’m sure this will be an awesome build. I suspect you will be running fender flares or a wide body kit seeing as your wheels are poking out a bit?

11-01-2025. 260Z work. I got the engine compartment sanded down after the glaze and then cleaned up the crossmember and rack with cleaning solution "g@s" and a toothbrush, and then steel wool, etc. Then I vacuumed out the cowl and primed it with rustoleum rust primerand top coated it with gloss black paint, then painted the engine bay with filler primer. Once dry I will use some spot putty I picked up on the areas that need it, hand sand it smooth and filler primer over that. Once it is good, then I will progress to color and then clear. Busy day! Pics:

Yes, still working on then, just have not posted anything. Bought some expensive components that take time to recover from. A blank PAMS head, that I then designed and has DelWest make me titanium intake valves, Inconel mnemonic stainless steel exhaust valves, also MoldStar 90 seats and guides. Had it assembled, and ports cleaned up for some nice flow numbers. Also purchased a Nismo 6 Speed Trans that was also strengthened and modified by HPI in Japan. I take some progress pics soon.

Picked this up from local hot rod shop for my 240z SBC 350 project about 13 years ago. Circuits: Electric fan relay Fuel pump Radio and amplifier Power windows Summit Racing/parts store etc probably have this fuse box.

Got the sensor figured out. It is idling around 130-140 F. Should be OK. I have to post a video. Sorry but I think this thing sounds bad ass. I have an insert in the exhaust so I dont need earplugs.

Update: after speaking to Cortex and getting some spindle dimensions from them for CAD mockup, looks like I’ll be using their Radial X spindles. Very exciting stuff, I am a bit weary about using aluminum spindles but the car is a track car and last weighed at ~600# over each front wheel so I think I’ll be alright. Thanks! Excited to share my progress with you guys. I’d eventually like to make my work/design open source and see what more talented suspension engineers can do with it. If I didn’t just buy one of these yesterday I’d offer to trade you a complete kit for one of them KN20 heads XD. A bummer indeed, just another bump in the road! Funny you mention Stock Car blade-swaybars. It’s basically all I’ve been looking at for switching over to that design. Plus the parts are pretty cheap & standardized. Thanks everyone.

This is awesome. We haven't had a good engineering project on here in a while, so this is a good to see.

07-01-2026 ATLAS Z UPDATE: Well in between working on my other Z, I am still working on this Z car. I went ahead and started working on getting the blue painted portions of the body ready for clear coating, and caulking the border of the carbon fiber pieces. Initially I had planned to paint on a fresh coat of factory blue before clear, but I think I may go with the patina finish that is left after smoothing out the paint and getting it ready for the next step. Using "Poppy's Patina" in a high gloss finish....2 coats.....apply and then the next day apply again for 2 coats is the plan for now. This car is meant to just have fun with. It's the project car while I have the other Z anyway. my 240Z is giving me some timing issues to contend with so I have plenty to do. Also put my water meth pump on some steel to start getting the ideas flowing. PICS:

No sir. The ZPS prototype was fitted in 2011. That EZ setup is similar, but it doesn't use torque sensors or an ECU. It's also substantially more expensive. There IS a company that "copied" our design, but they use an inferior motor that isn't for automotive use. Found it odd that they ordered two of our units back in 2014. We've also developed an electrohydraulic system for those wanting to retain a hydraulically-powered rack, but don't want a traditional PS pump hanging off their engine. Ours uses an electric PS pump with remote reservoir (not as popular as the original ZPS kit, but a number of V8 swap S30 guys have bought one. Hope that's all helpful!

I found the wire. The black with yellow stripe comes in on the turn signal side of the switch (see picture, blue arrow pointing to the wire). I had the ground connected there. That ground, which is on the turn signal side, connects to the ground on the combination side of the switch (see picture, red arrow pointing to the wires). After that all was good. I wondered why the circuit seemed to work fine with my crossed wiring of the black to black/yellow. As it turns out the switch was finding ground through the wiper motor. As I was tracing the wires for the second time, I disconnected the wires at the wiper motor and found my headlight would go out... Eureka! Problem is now solved. Thanks again !

06-14-2026 ATLAS Z UPDATE: I started the day by cutting and prepping a new throttle to be welded up, keeping the angles for leverage, but removing and bends to make it straight. the one I did before did not work. It needs the bends to create leverage, and a spring mounted throttle foot pad to work correctly. the factory one is bent, so pie cuts were used to straighten it, then chopping and shortening it was required. It now heads to Wagner Fabrication to be welded up and then I will paint and install later. Then I Mounted my dual catch cans. I then mounted up my front blinkers and then went back to the catch cans....tying all the lines in, One line is black braided, and as you can see, I masked off a portion of it and painted it with silver engine block paint to help it match the others. Better than not at all! I also wiped down my forward metal dash piece and set it in then and then touched up some fittings in silver to get away from too much black. I then took my blinker surrounds that have been repaired and sitting in primer forever and sanded them up smooth with some 320 grit sandpaper, and painted them with gloss black rustoleum 2X, and then a few coats of Krylon clear. Also of note, I did cut and place a PCV valve in the breather line coming from the intake back to the catch can. So....a lot of little things today, to include tying it all up and cleand up under there. Definite steps forward today! PICS:

It's been a while. I moved from NC back to OH for work. My tools and vehicles have been locked up in a storage unit while we are in the process of buying a home. I took the car back to my parents' carport to try to get some work done. However, there were a lot of little things to do. There is a fuel smell on refills, exhaust fumes leak into the cabin, the carbs need tuning, and my shitty rust repair needs some work. Because there was so much to do, it made sense to me to pull the engine. Since I was pulling the engine, it made sense to me to just swap in an RB25. So I pulled the RB from the parts car, pulled the L24, and started fixing all my previous work. My welding has gotten a lot better, but it still has a long way to go. The thicker sway bar and improved suspension was tearing the frame rails apart where the sway bar attaches. So I drilled and tapped some thicker steel and 3/4 boxed the frame rails to try to prevent the same damage in the future. I scuffed up the engine bay, threw some primer at it, and painted it the same white as the rest of the car. I also pulled the dash, stripped the paint, put on some rust preventative paint, and added sound deadening. Next steps: I need to drop out the stock rear end and get an R-200 with an LSD in it. I have a new universal harness to go in it and new gauges in a crack-free dash. I need to figure out what brakes I want to upgrade to. I also need to figure out if I'm going to reuse or replace all the brake lines, fuel lines, and gas tank. I also need to chose what ECu I want to use. Right now, I'm leaning towards a Haltech Elite 1500. Finally, I need to rebuild the RB25 with the oiling upgrades and get it and the RB25 transmission thrown back in the car. I'm spending more hours at work in my new role, but I'll try to post updates. Photos-3-001.zip

Welkom! It’s good to see you posting here as well.

I miss the old days of humble build threads, great comments and passion for building. All the FB and You Tube stuff seems like "hey look at how special I am, I can weld metal... ect" then people just talking shit how they suck and how much better they are. Just self-promotion for one’s self over passion for our cars and community. I think the Me/I generation is the problem mixed with ADD for anything longer than a sentence and complex thought. To ask for help is to say you dont know everything and today that is death. So yes I am an old guy now so look at me just like I used to look at my parents when I was young HA. Ill keep posting here, at least it is one thread that follows my project for anyone interested. I appreciate the comments, critisim, and help.

Another week has past and another weekend of work has been completed. Luckly the orders I placed where send out pretty fast so I got all the rubbers and bushings I was missing ready to head to work. I started off with finishing the work on the transmission. As the speedometer gear had been leaking, and I didn’t know how much fluid the transmission had lost (or was even serviced the last time), I decided to change the transmission fluid for some Redline MT-90 transmission oil. That was easier said then done as Redline MT-90 is pretty hard to find in Europe. But it appears I was in luck, one performance parts shop here in The Netherlands had a few cans in stock and send them out for me that same day! Even though the transmission mount and crossmember bushings where is decent shape I still decided to chang them out as a precaution. I used a OEM style rubber transmission mount for vibration reduction but polyurethane bushings in the crossmember for added stiffness. Next came the most exciting but also the scariest part. Replacing the front crossmember, engine mounts and oil pan gasket. I wanted to leave the crossmember for last and start by removing the oil pan. To do that and have easier access to the bolts I first removed the steering rack which I gave a quick clean and paint job while I was at it. I might have figured out why the oil pan was leaking in the first place, it turns out about halve the oil pan bolts where loose! Other than that the process was pretty straight forward. Removing the oil pan did give me a pretty interesting look into the engine which felt pretty weird so I quickly reinstalled the oil pan with new bolts. To remove the crossmember I had to find a way to support the engine in the meantime. For this I created my own, incredibly sketchy, engine support bar together with a jack under the crack pully. Even though it was incredibly sketchy it was surprisingly sturdy and stable. But still I hurried as fast and as careful as I could to remove the old crossmember and install the Apex Engineered crossmember. This went surprisingly smooth with the only difficult part being reinstalling the bolts into the new engine mounts. But with a bit of help of the jack and some patience I got them all in and everything safely secured again. Next came the most difficult part of fitting the Apex crossmember braces. The passenger side went without a problem but the drivers side not so much. There the crossmember brace didn’t fit as the car had aftermarket headers and signs of body damage to the left side of the car. The headers where interfering with the brace and the brace was sitting much more forward then the passenger side. This required some modification of the headers (with a hammer) and a few spare washers as spacers to fix. To modify the headers I had to take them off the car which I really hope I won’t have to do a second time as the bolts are really hard to reach. To finish off the weekend I got a call from the body shop telling me my doors and cowl where finished painting! So I immediately got in my car to pick them up and install them back on the car. The installation went pretty good but I didn’t get the doors to sit perfectly flush, the back always sticks out a bit. This may be because of the weather stripping which I assume to be cheap aftermarket. After the doors came the fenders and the rest of the bodywork. As I was missing a lot of bolts around the car I ordered a nut and bolt kit from ResurrectedClassics a while back. During the previous “restauration” (if you can even call that) they just left damaged bolts out or spot welded panels in place. As I absolutely hated that I took my time to retap all the holes or install rivet nuts wherever I could. I also replaced a lot of the bolts with nice plated bolts from the kit. All of this nearly has the car ready for one of the final inspections of it’s life (as they aren’t mandatory anymore after 50 years). I just have a small list of things left to do. - Reinstall the door cards - Reinstall the seats - Set a rough alignment (enough to get me to the shop) - Install the wheels - Install a new set of horns (existing ones have underbody coating in them) - Repaint and install the front grill - Install the new fender mirrors - Install the rear speakers (for now optional) - Replace the pre fuel pump fuel filter (for now optional) And of course clean the car!

Trickflows are a great choice. I have a turbo 351 so not a direct comparison but when I switched from GT40s to 11r 190s it made a massive difference. Unrelated to the engine. I weighed my stock 280z door today. Its gutted so I can paint them. so no glass, regulator, handle, lock, hardware, window frame ext. just a empty door shell. 34lbs.

Dash cap is on! next is gauges and center section install. run the wires so once installed the wires are right there and can be easily wired. Speedo is GPS. Speedhut gauges. Made in USA, cost is like sending a kid to college

The access panel is to get to the fuel filler neck. I think I got the panel from Allstar Performance. I wish the panel was just a little bigger so that I could remove the filler plate though the opening. The one I have is just a little too small...

I did a 14 gallon radium cell in mine because i plan on possibly running e85 and we have some 30-35 minute sessions with some clubs. I have it raised like an inch and a half out of the floor to make the bottom height where I was visually happy. My cell is advertised at 11.7" tall so if the ATL 10 or 12 is shorter then flush with the floor should be perfect.

Please do post updates! It's always great to have another project thread on the site

More work on the 4200 today. cleaned up the rest of the block and head, and then pulled the oil pan and cam cover. NO SLUDGE. very clean inside. I got the outside of the cam cover clean enough to at least get started on the modifications I will do to it (add an alloy oil fill to the back, add a breather port, shave off 2 original ports, cut off unnecessary brackets, weld up the original oil fill hole and probably lower it a bit as it is very tall . To fit under a Z car hood it has to be chopped about an inch......although a small rectangular hole in the hood with the polished cover sticking up can be made to look really cool. Yeah I had an adaptor snap on me, the crank bolt is SO tight, I will probably need heat and PB blaster and smack it a few times to shock the treads to get it off. I need to clean behind it and it needs to be cleaned up and painted.......I wonder if the heat will ruin it? Before I called it a day, my AR5 transmission arrived.....in need of a rebuild, the pilot shaft has wiggle room. pics follow:

Day 1 of installation. almost 12 hour day and got a lot knocked out. Pics below: