Z Car Garage has been supporting the Nissan/Infiniti Z and G-series sports cars since 2004. At just about any time during the day at our shop you can spot a 350Z, 370Z or G37 undergoing routine maintenance or performance upgrades. Many of our late-model Z car clients are referrals and we are happy to oblige when scheduling allows. We met Frank M in 2020 when he had us perform clutch work on his 370Z. The install went super smooth, and Frank and Rob began their relationship.
“I first heard about The Z car garage through another Z car enthusiast, he had nothing but great things to say about the service he had received working with the crew there. I reached out the Rob to have my 370Z’s clutch replaced with the Z-Speed CMAK clutch kit. That was the first job you all did for me.”
A common issue on the 370Z is the internal slave failing due to heat. Thankfully Z Speed Performance makes a kit to convert the internal slave to external (CMAK Upgrade). We installed their Stage 1 Clutch kit on Frank’s Z:
On his next visit to ZCG, Frank had us perform an alignment after suspension work including Eibach Pro-kit lowering springs (KW-V3 coil-overs next) and Hotchkis front and rear sway bars and SPC rear adjustable camber arms. We also replaced the rear diff bushings with new Whiteline parts.
Frank is a handy guy and he’s done much of the work on his Z himself. For something that is beyond the scope of a simple weekend project he brings it to ZCG. In summer 2022, with 77k miles Frank installed an oil pressure gauge (VLS) and didn’t like the levels it was reading. There is a very common issue on the VQ37HR where oil gallery gaskets fail, resulting in low-oil pressure to front of the engine.
CPZ makes updated gallery gasket with really nice hardware. At the same time to help with oil cooling we installed the CPZ 25-row oil cooler with a thermostatically-controlled Setrab unit:
Wheels Make the Car
Mark has great taste in wheels, choosing a set of Work Racing CR2Pwith Michelin Pilot Sport 4s tires 265/35 and 305/30 rears:
We spent time with the 2023 Nissan Z back in June and Frank was kind enough to lend us his WORK wheels to test fit on the RZ34:
Frank purchased his 370Z bone stock, being the second owner and has added the following mods:
Drive train
Fast Intentions stainless steel CBE exhaust
Stop Tech front and rear vented drilled and slotted zinc coated rotors
Stop Tech carbon ceramic pads front and rear
Stillen CARB legal cold air intakes
VLS oil pressure gauge
Aesthetics
Custom retrofitted headlights by me honey comb projector lens. Blue demon eye. Black and gunmetal paint job plus new Morimoto clear lenses.
Evo-R carbon fang cover,carbon type three front lip, carbon upper bumper cover, pearl white base carbon top high wing and CF door handles
Fujimura rear lower diffuser
Enjoying The Ride
You can catch Frank carving up the Bay Area backroads like HWY 9 runs up to Skyline and Alice’s:
Frank is stoked with his Z car:
“The performance gains from the work Z Car Garage performed was great. The clutch feel is much improved and does not slip it also seems to shift smoother. The oil pressure is up 15 pounds at idle from the oil gallery gaskets and the car runs much cooler after the oil cooler install. I think the cooler temps help the car not heat soak on hot days while pushing it on back roads. The best thing about the Z car Garage is when I leave my car there for service, I never worry about it being there. I know the car is taken care of as if Rob owned it himself. I have nothing but good thing to say about you all. I do a lot of work on the car myself but Z Car Garage is the only shop I will use if I need the help.”
Thanks for your support Frank it was pleasure working with you and seeing enjoy your Z. See more photos in the gallery below, and contact us to schedule an appointment for dyno tuning, maintenance or upgrades on your 370Z or Infiniti sports car!
We have the pleasure of continually developing Dirk’s 1973 Datsun 240z to help achieve his vision of a Z car that is adept on the street and track. Improving the driving experience are our Z Car Garage Big-Brakes, Z Car Garage CV Axles, Silvia 6-speed transmission and a host of chassis and driveline upgrades.
Dirk shares his experience working with us:
“Collaborating closely with Rob and ZCG has elevated the optimization process. Rob will frequently talk me out of a bad idea, or into a good one (like the OS Giken LSD). Sometimes I talk him into a bad idea and it turns out to work really well, like the S15 gearbox. The most fun is when we brainstorm stuff together like turning the catch can setup into an improvised simple PCV system, eliminating all hints of oil fumes from the car while running.”
Datsun 510, 620 and Z car love
Since our last iteration, Dirk as been back to Z Car Garage for a few major projects. Let’s take a look at his Datsun story first. Dirk bought his first Datsun in 2014, a 1970 510, to learn how to work on cars himself. After learning more about the history of Datsun, and the significance of both the 510 and the 240Z in establishing Japanese cars in the American market, he knew he had to own a Z as well.
A year later, the right Z showed up on eBay in Texas, a 1973 in silver gray. After pouring over the photos and talking to the seller, Dirk bought the car sight unseen. The idea was to have a nice Z to enjoy and drive, while continuing to work on the (sometimes not) rolling restoration of his 510. The car was lovingly restored by a dad and his children and in mostly stock condition. Dirk also has Datsun 620 work truck complete with dual-Mikuni’s:
After many more tweaks, different induction setups, spring rate changes, rebuilt stock brakes, and 24K miles of driving including a few track days, Dirk’s Z was inching closer and closer to his vision.
“After installing a Datsun Spirit STR-3 engine with a set of Nismo Mikuni PHH44 carburetors, the biggest weak spots left were the rest of the drivetrain (especially the stock 4-speed transmission, but the Subaru diff had also developed some bearing issues), the stock brakes, and of course the loose nut behind the wheel – but sadly that last component typically takes too much money and time to modify thoroughly.”
After comparing the Z to his Subaru BRZ on the track, it was clear the Z was better at everything except for shifting gears. Since his engine made a healthy amount of torque, but not enough to warrant a CD009 (350z) transmission, Dirk kept looking for alternatives. He also wanted something with slightly closer gear ratios to better suit the engine’s power band. An S15 Silvia 6-speed seemed like the perfect fit and we installed it back in 2019.
S15 6-speed transmission
The first S15 box had some weak synchros, so Dirk sourced another one that was installed with OE trans fluid, as well as a set of fresh OE motor and trans mounts to help with shifter feel and reduce vibrations in the car.
“The S15 transmission fit surprisingly well. ZCG built a custom crossmember to locate it, and the shifter lined up almost perfectly. No transmission tunnel mods were necessary. The modern shifter looked out of place, so ZCG built a custom unit that would look stock, and work with the Datsun competition shift knob. A small 6-speed shift pattern sticker modeled after the one used in the Silvia is the only clue there’s something different going on under this car. And of course the driving experience.”
Making the S15 shifter look factory, we are happy with the result and Dirk’s subtle shift pattern sticker:
The Datsun Comp shift knob complements the steering wheel:
Chassis and Driveline Upgrades
First, there was work to upgrade the steering geometry and suspension. With the car being lowered quite a bit, despite having 1″ RCAs installed, it had a ton of bump steer. Rob installed DP racing adjustable tie rods, removed the front springs, and completely eliminated the bump steer on the alignment rack while moving the suspension through its full range of motion.
New DP Racing tie-rods and in-house alignment:
We also refurbished Dirk’s steering rack with fresh parts from our stash:
With the Z back in the shop for bodywork we took the opportunity to make more suspension changes. New Koni Race shocks from T3 were installed, which were a much better match for the 300# and 350# spring rates than the Koni Sport shocks they replaced (as Dirk initially ordered the coil overs with lower spring rates, he never replaced the shocks after adjusting the spring rates, and the car always felt underdamped, particularly on the not-adjustable compression stroke):
ZCG Big-Brakes and CV Axles
Dirk visited ZCG and drove “Mrs. Butters”, our 1970 Series 1 240z shop demo car and he was sold on our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles! Butters has a way of doing this to our customers 🙂 As fellow S30 owner/racer Glenn C mentioned in his review, on top of braking performance, pedal feel is extremely important and our Big-Brakes deliver. This is a direct result of working with Stoptech to create a totally bolt-in solution requiring no M/C change or additional proportioning valve/adjustments. All fitting behind a 15″ Watanabe or Panasport wheel and retaining factory emergency brake lever! A few details below:
Calipers: Stoptech ST42 4-piston front & rear race calipers (Alum 6061 mil-spec Type III anodized)
Rotors: 280mm x 20.6 with Alum 7075 hats
Pads: Stoptech 309 sport street pads
Blog posts documenting all of our customers running the ZCG Big-Brakes can be found HERE.
A few closer detail shots of the calipers, rotors and hardware:
At the rear, the factory drum brakes were replaced with our ZCG Big-Brakes. Factory handbrake functionality retained!
Our Z Car Garage CV Axles help transmit power to the ground and ensure smoother operation compared to your standard half shafts. We have over 70 CV axle kits on customer cars and we are stoked with all of the positive feedback.
Also visible on Dirk’s Z are the excellent adjustable lower control arms from Techno Toy Tuning.
3 Liter L-Series Power
Unfortunately, the Datsun Spirit engine developed rod knock which was the impetus for a big drivetrain upgrade. Several other parts of the car where refined as well.
The L28 engine was pulled, sent to Rebello, and built into a 3L powerhouse. Dave bored out the 44PHH venturis to a custom 38.5mm, to hit the perfect compromise between peak power and drivability. We also installed a fresh water pump, alternator, new fan blade, OEM fan clutch and fresh air filters. The beautiful DP Racing oil pan remained. More photos in the gallery below:
A custom stainless 2.5″ mandrel-bent exhaust mates with a new set of coated Pacesetter headers and Z Story Street muffler (in a search for a reduction in volume while keeping a nice note). Dirk discusses the clutch/flywheel combo below:
“The STR-3 already was able to slip the Exedy clutch and we were never fans of the Chromoly steel flywheel. A Jim Wolf Technologies clutch and flywheel combo was installed after first trying a newly developed Kameari single plate street clutch kit, which we both found too loud and racy for this street car. While the JWT pressure plate yielded a different pedal feel that took some getting used too, it was not too heavy and perfectly comfortable to drive in traffic. More importantly, it never slipped under any kind of abuse.”
The clutch hydraulics were replaced to work with new alumimum flywheel/JWT HD clutch combo:
We installed a ZCG-built 4.11 OS Giken limited-slip differential in the R180 along with a custom aluminum driveshaft:
Dyno Tuning
The previous L28 made 202hp/194tq at the wheels with Rob’s tuning. Now with the fresh 3L it baselined at 245hp/226tq with more area under the curve:
Rob tuned the car further on the chassis dyno, setting it up with a very lean idle at Dirk’s request (to minimize gasoline fumes at idle). With A/F optimized and Nismo Mikuni carbs massaged, Rob unlocked another 20hp yielding a stout 265hp/232tq to the wheels:
With gains of 62hp/37tq at the wheels over the L28, Dirk is very happy with the new 3L:
“While the Datsun Spirit engine had a very peppy mid-range and made more delicious induction noises, there’s no argument that the more powerful Rebello engine elevated the car to the next level of performance and fun. The entire setup worked incredibly well together, and we hit an impressive 265hp at the rear wheels, or 60hp more than the engine made in its previous iteration, putting it in the 100hp/liter ballpark at the crank. Not bad for a dinosaur engine on California pump gas!”
Enjoy the dyno video and L-series music!
Sorting
The little things are what we excel at and Dirk had a list for us to knock out. While at ZCG, we replaced the heavily sandblasted OE windshield, and did some rust remediation in the cowl area, as Dirk had started noticing water making it into the interior fan assembly after washing the car. More photos in the gallery below:
The heater and blower motor assembly was refurbished with new ducting seals and lubed linkage:
The headlight switch had also developed some issues where sometimes the lights would turn off completely when switching between low and high beam, and was replaced with a good used example from the ZCG parts stash.
“The headlights now worked reliably, the new engine didn’t consume any significant amount of oil, and the whole drivetrain worked together even better than before with the new clutch and flywheel combo.”
Unfortunately, 7 months and many miles later, Dirk was back after a minor nighttime crash that took out the left fender, front bumper and valance, and dented the hood. After bodywork and paint from our man William from William’s Auto Body, we installed a euro front bumper, used turn signal assembly, cleaned up electrical wiring from alternator through firewall and sorted his Speedhut GPS speedo box.
To improve safety, comfort, and avoid future crashes, Dirk upgraded his headlights to a new set of Holley Retrobrights, and GTR Carbide 2.0 turn signal bulbs front and rear from Headlight Revolution.
“The headlights are a world ahead of the old Maxxima LED units, which themselves outperformed the Sylvania Halogen sealed beams, while staying very under the radar, with their sealed beam-inspired looks. And the turn signals are now highly noticeable, even in the brightest daylight.”
Enjoying the Ride
Dirk’s been driving his Z-car pretty much every day since the latest upgrades, and it’s been working phenomenally well:
“The drivetrain + brakes make it as happy to accelerate as it is to stop, and with the quick, closely spaced shifts and eager engine, it’s fun to do a casual grocery run, and to drive quickly. With the electrical systems and all fumes well under control, it’s truly a car you can do anything with, and probably more reliable than my BMW.”
We loved to see Dirk driving his Z on rallies and fun runs this year. Most recently we joined fellow Japanese vintage car owners on the Tokyo Calling event hosted by Breakfast Club Rally:
Dirk also joined us for a New Year’s Day drive through our favorite Bay Area Backroads:
We enjoyed working with you Dirk and it was rewarding to help improve your Z.
“Some say good is the enemy of great, but that’s true if you think you’re done. I don’t see my Z car less as a “build” that’s done. I’m always developing it, just like continually developing a race car (e.g. my Lemons car, http://instagram.com/bittersc243) to stay competitive. In this case the competition is merely for making the Z into the most fun driving experience I can imagine, and the journey of continuous refinement and improvement is a big part of the fun for me.”
While Dirk works through a few interior projects (new carpets, stereo upgrade) on his own, we’re getting ready to further revise the front suspension/steering, and wider wheel + tire options. Enjoy more photo documentation of our work in the gallery below. Thanks for your support Dirk and LONG LIVE THE Z!
Nikon F6 | Nikkor 24-70mm f/2.8G | Cinestill 50D 50
Scanned with Noritsu HS-1800
Lab developed in | Dip and Dunk
Mamiya 645E | Mamiya 45mm f/2.8 N | Lomography Color 100 100
Scanned with Epson V750 | Epson V850 120
Lab developed in | Dip and Dunk
Z cars may remain with their loving owners for years, change ownership or even get spotlighted in the media at some point. Our “where are they now” series features past Z Car Garage vehicles with updates on their status. In this third installment we catch up with Craig’s 2004 Nissan 350Z.
Craig’s 350Z was supercharged almost 12 years ago using a Vortech Tuner Kit with supporting fuel and cooling upgrades.
Fast forward to 2022, Craig visited ZCG for routine maintenance including a new air filter and rear differential bushing replacement:
The diff bushings were replaced with new units from Whiteline. The diff bushings are the most common failure as see in previous blog posts:
We put the Z on the dyno and it put down almost identical power output some 12 years later! This is a testament to the mighty VQ35 engine and Craig’s maintenance. Dyno plots:
(L) 2022, the Z made 420hp/349tq at the wheels
(R) ~2012, the Z made 415hp/344tq at the wheels:
Enjoy the latest dyno passes of Craig’s 350Z in the video below:
Craig is still happy:
“Even after 12 years or so, every time I drive my Le Mans Sunset 2004 Touring model, I feel like it’s the first day. Aligning with the team at Z Car Garage was the best move. I didn’t need to shop around once I visited a few times. I knew I was at the right shop. Buying the Z in 2008 was exciting as this was the first sports car I’d ever had. Having the performance upgrades a couple years later from Z Car made a world of difference. So glad Rob helped me “pull the trigger”. Without a great deal of knowledge of what I wanted in components, I let Rob custom-craft what he felt (and had solid experience with) was the best mix for me and the car. I’m pretty tall, so I don’t track the car, which is a bummer at times, but I have as much spirited driving as I can. Also, I live about an hour from the shop, so Rob and team make a point to take care of me when I do visit, reviewing maintenance items needed.”
Thanks for your support Craig! We love that your Z is still running strong and you continue to Enjoy The Ride. Stay tuned for our next “Where are they now” feature, and if you missed our first and second features find them HERE. Long Live The Z!
Kevin M visited Z Car Garage for Stillen intakes, test pipes and dyno tuning on his 2013 Nismo 370Z.
He found this V1 Nismo Z34 in September 2020 at a Nissan dealership that was not yet advertised. Being a rare Magma Red model he jumped on it quickly.
A common issue on the 370Z is the internal slave failing due to heat. Thankfully Z Speed Performance makes a kit to convert the internal slave to external (CMAK Upgrade). In January 2021 on his first to ZCG we performed the CMAK upgrade. Since the transmission was removed Kevin opted for a Z Speed Stage 1 Quiet clutch with steel flywheel:
“When I first got the Nismo I was worried about the infamous csc going out. So I looked up for any shops that dealt strictly with Nissan and I was lucky enough to come across Z Car Garage. Transmission work included the Zspeed Performance Stage one quiet clutch kit with C MAK. My Nismo felt almost brand new compared to when I drove it off the dealership.”
We also installed Whiteline diff bushings on that first visit and discussed doing a tune and some hot rod stuff in the future.
In October 2021 Kevin returned to ZCG. We installed CWorks Test Pipes and Stillen GEN 3 intakes:
Dyno Tuning
We specialize in UPREV and EcuTek Tuning to maximize power gains from individual modifications like intake and exhaust upgrades. Rob UPREV flashed Kevin’s Z with the additional ARC license. Baseline power was 296hp/256tq and after tuning it made 338hp/275tq at the wheels, gains of 42hp/19tq. Kevin was happy with the power improvements.
Enjoy this video with dyno runs and exhaust system sounds!
Thanks for your support Kevin, Long Live The Z!
Contact us for tuning!
Z Car Garage offers the ARC (Advanced Racing Controls) license. This add-on service to the existing UPREV Flash allows you to have adjustable launch control, burnout mode, and flat-foot shifting. This is for cars with manual transmission, VDC/cruise control. Call Rob for more details and to schedule your Z/G tuning appointment.
This is Greg S’ 1970 Datsun 240Z in Monte Carlo Red. We have known Greg for a long time, actually preceding the opening of Z Car Garage. It’s always been a pleasure to see Greg with his beloved Z plus he’s a Nissan enthusiast with a few Patrols and mint RL411 wagon. His Series 1 S30 received our Z Car Garage Big-Brakes, Z Car Garage CV Axles and Panasport wheels.
Our relationship with Greg goes back well before social media and our photo documentation. Greg performs his own work on the Z, and we finish the small extra things that let him Enjoy The Ride. Let’s take a look at how Greg became a Z car enthusiast.
History
Greg does not have glorious restoration pictures of the Z with fresh parts all laid out on benches etc., as the car has never been through that process. He simply just replaced or rebuilt parts as needed to keep the car running and looking good. He acquired the car from the original owner,VIN# 4052 with a 5/70 build date:
“My old man purchased the car for me in 1992. I was 19 and we had been looking for a decent 240z for about a year. We found this one in one of those auto traders printed on recycled paper. It was basically ‘Original owner, runs great, 83K miles $3,500 OBO’. It was bone stock, totally straight, unrestored and completely unmolested. The original sales receipt for $3,300 was in with his service records. Seemed like the car had spent its whole life in northern California.”
“The photos with the basket style 14” rims were after a trip to the junkyard for said rims, new tires and some elbow grease polishing and waxing it. It cleaned up pretty nicely. I went to college in Santa Clara and first ran into Rob when he was a mechanic working at the shop I would take the car…I did most of the general maintenance work but had that shop put in a set of Suspension Techniques sway bars, springs and Tokico struts. At the time I didn’t know enough to appreciate what a good shop that was.”
The car was repainted in 2000 by Lakeville Auto Body in Petaluma, matching the original #905 Monte Carlo Red. At about 150,000 miles Greg decided to replace the motor, even though it would have happily ran for a bit longer:
“Nissan was selling remanufactured L28 280ZX long blocks for $1,400 which seemed like a smokin’ deal. It was about the same price as you could buy the parts to rebuild the L24. I had moved back to Sonoma county and my dad and I did the motor swap in his garage. I took the opportunity to add the Redline triple Weber 40 DCOE kit, a sportier cam and a set of headers. I worked with a speed shop to sort out the jetting. It ran decent, but was pretty rich down low, would stumble at times and got poor gas mileage. I drove it like that for several years, replacing the intake manifold, fabricating the heat shield and air filter assembly.”
The Z Car Garage Touch
About 12 years ago Greg was looking to resolve the jetting on the Z and seriously considered ditching the Weber carbs altogether. He spent some time trying to find that original shop in Santa Clara but found Z Car Garage instead. It didn’t take long to figure out that he had already worked with Rob and that alleviated any reservations about dropping his Z off at a shop a few hours from home:
“As expected, Z Car Garage did an excellent job re-jetting carbs. The car idles perfectly, pulls cleanly, makes more power and gets a respectable 18-20 mpg. Now anytime I need help sorting out a problem with the Z, advice on an upgrade, part availability or just need someone to sing some ballad rock to me, I call Rob.”
Greg is really happy:
“Since then Rob has set me up with:
The correct 16″ Panasports that saved me the hassle of getting wheel sets that rub or rims that just look OK.
ZCG CV Axles axles that were a joy to install, run smoothly and don’t make the racket that the other (hateful) CV kit did.
Recaro seat that is actually suitable for driving long distances and keeps you from sliding into the footwell.”
ZCG Big-Brakes and CV Axles
We are proud to have several of our ZCG products on Greg’s 240z. As he mentioned above, Greg installed our Z Car Garage CV Axles and we installed our Z Car Garage Big-Brakes (for small wheels). These products have been standard on numerous ZCG builds.
As fellow S30 owner/racer Glenn C mentioned in his review, on top of braking performance, pedal feel is extremely important and our Big-Brakes deliver. This is a direct result of working with Stoptech to create a totally bolt-in solution requiring no M/C change or additional proportioning valve/adjustments. All fitting behind a 15″ Watanabe or Panasport wheel and retaining factory emergency brake lever! A few details below:
Calipers: Stoptech ST42 4-piston front & rear race calipers (Alum 6061 mil-spec Type III anodized)
Rotors: 280mm x 20.6 with Alum 7075 hats
Pads: Stoptech 309 sport street pads
Blog posts documenting all of our customers running the ZCG Big-Brakes can be found HERE.
A few closer detail shots of the calipers, rotors and hardware:
Greg brought his Z down on May 20 and with a one-day turn around we installed our ZCG Big-Brake kit with parking brake assembly. We also replaced his brake M/C with a new OEM Nissan unit, bleeding the system and setting it all up. He’s super impressed and he also had fun visiting us:
“While I was down at ZCG, Rob took the time to show me around. The shop is clean and even the parts storage container is expertly organized. The quality of the cars and race cars in the shop were a joy to see.”
“Most recently I dropped the car off to have ZCG install their excellent brake kit. Super clean installation, perfect pedal feel and stops great. They clearly put a lot of effort into this kit and did such a nice job installing it.”
Front brake installation:
At the rear, the OEM drums brakes were replaced with our ZCG Big-Brakes. Factory handbrake functionality IS retained!
Z Car Garage CV Axles
Our Z Car Garage CV Axles help transmit power to the ground and ensure smoother operation compared to your standard half shafts. We have over 140+ CV axle kits on customer cars and we are stoked with all of the positive feedback.
Greg was experiencing significant vibrations in the back of his car. In February 2020 we sold him a set of ZCG CV Axles and installed it himself…he loves them. Standard half-shafts shown on left:
Greg is having a blast in the Z and sent us this video he made from a recent drive in Petaluma, enjoy!
Panasport Wheels
In 2014 we sold Greg a set of Panasport wheels which were finished in a slick, gumetal shade. Our ZCG Big-Brakes also look great behind Panasport wheels in our offset allowing 225/50/16 tires (Bridgestone S-007a). The Z was fully aligned afterwards.
Interior
The stock seat was replaced with a single Recaro Specialist, we love these seats for the S30. Time for another seat, right Greg?
Bluebird Wagon
“I have only called Rob to cry about the 411”
In addition to the Z, Greg has had a few Nissan Patrols and still have this 1967 WRL411. A true labor of love, this little wagon showcases Greg’s work/fabrication and aesthetic. It was also stock, complete and unmolested when he acquired it 15 years ago. The 411s are close to our heart as they share some parts with their Datsun Roadster siblings. We have also helped out client Kevin M with his SSS Bluebird.
Greg freshened up the interior, replaced the headliner, carpets, front seat covers and made the gauge cluster insert. Originally it had a 3 speed automatic that was replaced with a Roadster 4-speed. The front brakes and hubs were replaced with larger units also from a Roadster. This required fabrication of new steering arms.
Under the hood is what make this 411 wagon a true sleeper: with a little machine work you can use the crank out of a U20 and turn the R16 into a 2.0 liter:
“The motor barely fits into the 411 and it’s especially tight near the radiator requiring a special shorter water pump. The exhaust exits through the fender well and all the stock units have long since rusted out so I was forced to weld up a new header for it. The SU’s were replaced with flat slide Mikunis and I made a new 3-D printed airbox and throttle assembly. I am still working out the final tune with some updates to the exhaust system likely required. I want it to run as perfectly as the Z. Maybe I need to put a set of 40mm DCOEs on it and have Rob re-jet it.”
Greg made the CAD for the exhaust header and welded it up himself. CAD was also used to make a new gauge cluster to accept a tach and modern signals. It’s the icing on the cake on a sweet build:
“The gauges out of the early roadsters are beautiful so I was originally intrigued with them. They are expensive if you can find them and the diameter is too large to fit nicely in the stock cluster housing. I ran across a few images of this SSS cluster in a car but it appeared to also have a larger cluster housing. Both seemed impossible to source. The new electronic tachs and speedos are way easier to get working than fussing with MSD tach adapters or speedo gears etc. If you look at the CAD image you can see that I gutted the original speedo housing and added the toothed wheel and sensor to it. It’s driven from the stock cable running to the transmission.
We admire Greg’s ingenuity and determination to keep his cars on the road. Thank you for your support Greg, and keep Enjoying the Ride in your Z! More picture in the gallery below…
