Vincent S’ 1973 Datsun 240Z has a long history with Z Car Garage having received upgrades like our Z Car Garage Big-Brakes, Z Car Garage CV Axles, full suspension refresh and dyno tuning.

 

The Z came back to us in March of 2022 for more power, drivetrain and interior improvements. Before we explore these upgrades, let’s take a look at how Vincent found the Z car of his dreams…

Z Destiny

 

Vincent: “I’m from Le Mans, France and attended the 24 hours race, or Le Mans Classic numerous times. In 2016, I was on the Le Mans racetrack with the car I had then (a Lotus Elise 220), and one of my very best friends, Fabrice. That day, we saw a gorgeous blue, track prepared 240Z that we loved. I took several pics and videos of it.”

 

A few months later, Vincent saw our friend Dave Scholz’ video on Petrolicious and found his Z highly inspirational. In Summer 2019, Vincent’s job offered him the opportunity to move to San Diego for a few years and he decided this is where he would search for his own Z car, and eventually send it back to France. It truly is a small world, and our client Brian P had listed his ’73 S30 on Bring a Trailer in September of 2000. Vincent saw the Z, bid and won the auction!

 

Vincent: “I bought my Z on BaT, from Brian P, who had Z Car Garage restore it. He loved his car and had to sell it, but the modifications he wanted to do included a Rebello stroker with Mikunis, etc…Living in the US for only 3 years, I decided to continue the story with Rob, and the Z is now what I wanted and what Brian wanted (I’m still in touch with him). Knowing that I was going to relocate to FR, I also became a member of the Datsun Club of France. ZCG was highly recommended by the group, and is a worldwide reference for Zs! The posts on zcarblog.com with all the pics, etc….are also great to see how the work is done.”

 

Back for the Z Car Garage Touch

While previous owner Brian P was a little bummed about selling the car, he was stoked that Vince shared his vision and dream to take it the rest of the way. We spoke with Vince and discussed all the upgrades he wanted to do, knowing it had to be completed before his expatriation June 30, 2022. The Z arrived at Z Car Garage from SoCal on March 1, and it was so good to see it again:

 

Drivetrain

 

When Brian was coming to ZCG it was during the “Butters” phenomenon: our clients wanted a similar setup for their own S30s. Our 1971 shop demo Z Mrs. Butters proudly features our Z Car Garage Big-Brakes, Z Car Garage CV Axles, ZCG Heat Shield, 6-speed transmission, full KW suspension (releasing soon) and 3.2L engine with triple-Mikuni induction. While Vince’s Z had the upgraded brakes, CV axles and suspension, the drivetrain was not touched.

We began drivetrain upgrades by replacing the stock L24 with twin-SUs/4-speed transmission with a Rebello 3L, triple-Mikuni induction and KA24 5-speed transmission. ZCG supplied the ph44 Mikuni carbs (jetted) with velocity stacks, ZCG mesh filters, Harada intake manifold, ZCG fuel rail and all of the things we do on the intake/exhaust side of the engine. Spark is provided by an MSD6AL ignition box. We also installed what every triple-carbed L-series needs: a ZCG Heat Shield!

 

A Moroso competition baffled oil pan prevents oil starvation with high cornering loads:

 

The Fujitsubo exhaust system from exhaust header to muffler was installed. These newer units have better fitment.

 

With the engine out we had our man William repaint the engine bay. ZCG engine bay services followed with freshly plated and plumbed hydraulic lines, hoses and general clean-up:

 

The engine bay turned out great and Vince wanted a red, powdercoated wrinkle valve cover. More photos of the engine bay details in the gallery below!

 

Driveline Upgrades

With the 3L engine in we focused on the transmission and rear axle. To handle the power from the 3L engine we replaced the stock 4-speed with a Nissan KA24 (FS5W71C) transmission. This was a common swap (before the CD009a came to market) performed by modifying a 280Z L-series bell housing. When we upgraded the transmission we also installed a JWT HD clutch with aluminum flywheel:

 

Helping put the power down efficiently is an OS Giken LSD. The R180 houses a 4.11 R&P and the assembly is setup in-house (by Joshua Corwin):

 

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 200 CV axle kits on customer cars and we are stoked with all of the positive feedback.

  

Stock half shafts (L) and Vincent’s ZCG units, set #00295. Also visible are the T3 control arms:

     

Dyno Tuning

 

Rob dyno tuned the Rebello 3L engine making a stout 239hp/211tq to the wheels:

 

Enjoy the L-series music in this extended video of Vincent’s Z including dyno runs, test drive with Rob and drive-bys:

ZCG Big-Brakes

We are proud to have several of our ZCG products on Vincent’s 240z. We installed our Z Car Garage Big-Brakes (for small wheels) which have the been standard on numerous ZCG builds.

    We removed the stock brakes and installed our ZCG Big-Brake kit.  We also installed a full coil-over (Koni) suspension from Techno Toy Tuning. T3 finishes the suspension in our signature color and we really appreciate Gabriel and his staff. They make some of the best suspension parts out there for Z cars.

  

ZCG Big-brakes and T3 coil-overs replacing stock setup:

     At the rear, the factory drum brakes were replaced with our ZCG Big-Brakes. New OEM Nissan master cylinder and Factory handbrake functionality IS retained!

   

Panasport Wheels

Complementing the new coilover suspension on Vincent’s Z are 16×7 Panasports and Hankook R-S3 tires in 225/50/16. We wanted the look and feel of Mrs. Butters Z so we obsessed over ride height until we got it exactly where he wanted it. The Z looks fabulous from any angle:

   

Recaro Seats

The stock seats were replaced with Euro-spec RECARO Pole Position in leather:

 

Driving is Believing

Vincent visited Z Car Garage for the first time when he picked up his Z on 6/22. Here is Rob showing Vincent the engine bay and going on a test drive:

  

Vincent:  “Rob and team ended up working 24/7 in the last few days so that this could happen. I picked it up on the 22 of June, early morning, when I believe I also met Alvin. It was amazing to meet you, Rob, and ZCG ! I then drove down the Pacific Coast Highway, to drop the auto in LA, where the logistics/freight company is. They finally put it on a boat 3 months later (and I now live in FR).”

 

Vincent was impressed with the upgrades from Z Car Garage:

Vincent:“What’s it like to drive??! Brian already had the brakes and axles done, so all good there. With the engine, gearbox, clutch, exhaust done + Recaros, it’s a complete different car to drive. Much more lively, direct, raw…the Recaros filter less than the original seats, but are now on par with the global performance and grip of the Z. I feel much more connected to the road.”

 

We are happy to report that the Z is now in France! Vincent picked it up in Le Havre (north of FR) and drove it all the way to Lyon (South east, where he resides). The engine started right away, and trip was a pleasure. He sent us some great photos (above):

Vincent:“Hey Alvin, I believe only 750 240Zs were ever sold in France back in the day…so you can imagine the looks I got! Some people thought it was a Ferrari 275 or a Type E…So grateful to Rob and the awesome job he’s done on the auto, and Brian, to whom I bought it, can be reassured…The Z’s being taken care of!”

 

Since owning the Z Vincent found out that the Blue Z he saw in Le Mans belongs to another member of the Datsun club of France, David Donne. Vincent also has been in touch with Dave Scholz, via Instagram who has been super friendly and helpful.

We enjoyed working with Vincent:

Rob: “All in all Brian would be super proud. Car was scheduled to be put on a container to go back to France and we made it with 1 day to spare. Huge thanks to Brian and Vincent. Super excited about this car and my only regret is that he doesn’t live local so we could enjoy it together.”

Thank you for entrusting us with your S30 Vincent and LONG LIVE THE Z!

…[read more]

 

We have great news for clients that have purchased our Z Car Garage Big Brakes. The calipers recently left the forging company and they are now being machined at Stoptech. Once calipers are anodized they will be ready to ship in the coming weeks, fulfilling all back orders. We apologize as parts supply issues have caused delays. Thank you all for your patience, believing in us and supporting ZCG.

 

The Last Stop in Braking for your Z

 

Z Car Garage Big Brakes are one of the best systems available for your S30 Z Car with over 140 kits sold worldwide and unanimous positive feedback. See our ZCG Big-Brakes on client cars HERE and enjoy the photos below:

   

 

 

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.

 Photos: Dito Milian/Gotbluemilk.com 

“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:

   

We removed Dirk’s stock brakes and installed our ZCG Big-Brake kit.

 ZCG Big-brakes replacing stock setup up front:

   

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!

 

 

Our Z Car Garage Big Brakes have been winning over Z-car enthusiasts locally and globally. Jay recently purchased a set for his 1972 Datsun 240Z and performed the installation himself at home in South Carolina. Last year Jay also purchased a set of Panasport wheels from ZCG and he’s been enjoying the ride. Before we go into his Big-Brake experience let’s hear his Z-story…

“The car was from California and made its way to Gainesville FL and was put in storage. I had been looking for a good 240 and this one was taken by the owner to a shop owned by a friend of a friend. The guy wanted to get it running and sell it. That triggered a phone call to me while on a anniversary trip with my wife to Italy, we were living in St Augustine Florida at the time. My buddy sent me some pics and a quick video and he grabbed the car for me. It was all there and very little rust. I had not really considered a Blue one, much less one with white interior.”

 

Z Car Garage Big-Brakes

     

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:

  

Big-Brake Kits Available For DIY Install!

Z Car Garage is proud to offer our Big-Brake Kit to Z-Car owners that want to perform the installation themselves. We can ship worldwide and each kit contains everything needed with a comprehensive (40-page) installation guide. Blog posts documenting all of our customers running the ZCG Big-Brakes can be found HERE. Enjoy these pictures of Jay’s beautiful S30 and his ZCG Big-Brake installation:

 

As mentioned, our ZCG Big-Brake kit ships with everything needed to install and retains the factory parking brake. Jay successfully installed the BBK on his Z along with a full suspension rebuild:

 

“The kit was packed and labeled extremely well, everything was included except for brake fluid.  The manual Rob sent me was very good. If you are looking for a great bolt on brake solution for your S30 with no need to cut n paste parts to make it all work, look no further than Z Car Garage. Great quality and Great folks to deal with. I had a small hiccup and Rob jumped on the phone and had me fixed up. Very happy with my purchase!”

   

Jay used OEM bushings and parts for his suspension refresh and full exhaust system from Zstory:

 

Beyond ease of installation and quality components, our Big-Brakes perform by offering superb pedal feel…everyone that drives our demo Z confirms! 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. Jay was very happy as well with great feedback:

“The performance of the brakes is awesome. My car is essentially a stock L24 but I live in the Blue Ridge Mountains and we have a lot of great driving roads and frankly the stock brakes sort of didn’t inspire confidence. This allows me to drive the car a lot harder with no worries. Super happy with the fit, finish & performance of the brakes. Thanks to you guys for making parts that take these old cars to the next level.”

 

Enjoying the Ride

 

Jay has been braking deeper and with more confidence on those Blue Ridge mountain roads, we love that this Z gets driven! Enjoy the short video Jay sent us the Z in action:

Race car driver, restorer and Datsun Historian Glenn Chiou has been a friend and client of Z Car Garage for many years. His canyon-carving companion is this 1972 Nissan Fairlady 240Z-L featuring our Z Car Garage Big-Brakes and dyno tuning. Before we get into the details behind this rare, right-hand drive survivor let’s take a look at Glenn’s Datsun story.

 

Racing Is Life

 

Glenn is passionate about vintage racing and loves re-telling the stories of legendary privateer Z car racers. Like privateers of the period, Glenn builds his Z cars, maintains and manages his racing efforts himself. You may have seen Glenn’s FAR Performance 240Z in VIPS Restaurant livery as raced in the 70’s by Loren St. Lawrence or his Ex-Greg Sorrentino IMSA 260Z at events like the Velocity Invitational and Rolex Monterey Motorsports Reunion. Glenn restored these cars himself and the VIPS Z is now going back to Bay Area Datsun Dealers livery as raced by FAR Performance privateer Walt Maas.

 

Glenn also races a Datsun 510, championing a vintage race group dedicated to the Historic B&C Sedan class. He is currently restoring the 1968 Ex-Finn/Harris U2.5L Trans-Am 510. You can follow his racing adventures on Instagram.

  

Finding a Fairlady

 

When he’s not working on race cars, Glenn is enjoying his 1972 Nissan 240Z-L. It’s “the dream list” car that started his Datsun passion. Glenn has owned it for several years, enjoying it as a back-road burner on the street and rallye events.

 

The Z has a great story behind its acquisition. Purchased from Chiyoda Nissan as a used car by US Air Force lieutenant David Zabel in ’73, it was brought back with him to the States in 1974 and driven until 1992. Glenn found the Z in 2010 sitting in a Datsun collection in Ben Lomond, Ca. Below are period photos from Japan in the 70’s at Yokota air base near Tokyo and ski-trips at Lake Tahoe:

 

Find out more about the story behind this right-hand-drive survivor over on Petrolicious with photography by Courtney Cutchen with a great video. To this day it still wears its original paint, interior and neat Japanese-market features like the 8-track Nissan/Hitachi radio and passenger side foot rest. Glenn also sourced the rare rallye clock that is functional, running off an oscillator box in the passenger footwell.

 

Drivetrain

 

We actually tuned Glenn’s Fairlady back in 2012. The 3.0L stroker is fed by triple-Mikuni induction backed by a Nissan 240SX 5-speed transmission and OS Giken limited-slip diff. With Rob’s tuning it produced one of the highest dyno numbers we had seen back then putting down 249hp/227tq to the wheels:

 

Z Car Garage Big Brakes for Glenn’s S30

 

The Z clearly had more than enough power, but braking was always something Glenn wanted to improve and once he heard about our  Z Car Garage Big-Brakes  for small wheels he became a believer after test driving them. Rather than tell you how we feel about this product, let’s hear Glenn’s experience.

“Throughout my years of Z car ownership, I have run a variety of brake setups. My Z cars have seen everything from restored OEM Sumitomos, Toyota 4×4’s, trick Wilwood setups, even frankenstein’d Baer calipers. There is no doubt that it has been one area that I have never been completely satisfied with. Over time, after many years and attempts to find the ‘perfect’ setup, I had given up and just settled for what I had.

The most important aspect to me when it comes to braking on a street driven car is feel. Yes, stopping power is extremely important, but also is not that difficult to achieve on an early Z car that is naturally light to begin with. Feel, however, is something that has always managed to escape me. On my vintage 240z race car, we use multiple master cylinders, swap them in and out, fiddle with our brake proportioning valves, fine tuning them to fit our driving style and preference. We are trying to find that ‘racer’s edge.’ In all honesty, when it comes to a street car, I want nothing to do with all that.”

“Wheel sizing and style was also extremely important to me. I love old school wheels and the sizes they came in. I needed a brake caliper that would fit under my 15” Watanabe RS wheels without having to shave or drastically modify my setup. If it was not for being in love with these wheels, I would have opted for Z Car Garage’s larger big brake kit.”

Our clients asked us to make a BBK for smaller wheels so even a guy running 14″ vintage 5-slots slots could brake like a modern sports car. Typical big-brake kits use a 4-piston setup up front and a ZX in back; Proportioning is hard to get right, varying from car to car. We wanted a brake system that suited the car and totally bolted in, no M/C change, no proportioning valve, no booster change.

 

Working with Stoptech again, we developed this smaller BBK as a direct bolt-in solution for the 1970 to 1978 S30 Z cars. We’ve been with Stoptech since the beginning and love their products. With over 150 brake kits sold, we are stoked with all of the positive feedback.  Let’s get back to Glenn and hear his initial impressions of the big-brake kit:

“Rob informed me he was working up a solution and he wanted me to be test the brake kit. Rob promised three things – they would brake amazing, they would fit under my 15” Watanabes, and they would feel as if they belonged on the car. Did I doubt it at first? Sure, a little. However, I also knew that the fit and finish of all products that came out of ZCG were top notch, and that Rob thoroughly tested all his products against his own standards. Which I’m sure everyone knows, are extremely high.

In preparation for the Monterey Historics last year, I had brought the Z race car to the shop for dyno time. Rob gave me the keys to his Butters Z and said “Go drive it.” Under 14″ wheels sat his brand new ZCG brake kit. I gladly accepted and took the car for a ride.”

 

“WOW, what a difference. The feel, modulation, power, sharpness was amazing. Hands down the best brakes I had ever driven on a Z car, and these were on a car with stock suspension, tires and probably cruddy tires! I told Rob, “sign me up!”

Glenn wanted to run the brake kit on his Fairlady and we happily obliged. He had also been gearing up for a road rallye so the braking system would be throughly used. You can see his Z (top left) along with his buddy Erich C’s S30 (top right, also getting a ZCG BBK!):

 

“Then came the day Rob called me up and said they were ready to rock and roll. Lucky for me, I was just about to head out on the 1000-mile Coastal Range Rally! The kit came with beautifully anodized front and rear calipers, hats, rotors, brakes lines, reversible brackets (for early and later Z offsets), and a factory ⅞” master cylinder. Read that again… Yes, a proportioning valve was left out from that list! The brakes were a straight bolt on and ZCG did all the math to get both the master cylinder size and piston sizes correct. We brought the car in for install and within a day the car was ready to rock.”

 

 

Glenn’s 240z now had 4-wheel disc brakes ready to tackle the street and rallye:

  

And of course, the brakes fit beautifully under the 15″ Watts. Kane approved, and Glenn was stoked:

 

“I could hardly wait to jump in the seat of the car and take it for a spin. The brakes were now on a car with suspension, tire, power, and a proper alignment. It was everything I had remembered from driving the Butters Z and MORE. The brakes performed flawlessly on the Coastal Range Rally, taking abuse from California’s most challenging roads”

 

“Attention to detail goes a long way. This is exactly what these brakes delivered, and what continues to be delivered by ZCG.

LONG LIVE THE Z!”

Still Enjoying the Ride

 

Last weekend we caught up with Glenn and took the FairladyZ out for a spin to stretch its legs. Glenn was one of the first clients to run our Z Car Garage Big-Brakes back in 2018 and we are happy to report that he is still braking late and deep all while Enjoy The Ride!

 

Over the years we’ve been fortunate to drive our Datsuns together through the local Bay Area backroads. Glenn’s Z always looks sharp while sounding sensational. Here is a video from our recent drive, volume up and enjoy!

 

You can find him carving through the Santa Cruz Mountains or taking a break at Alice’s Restaurant off Skyline…

 

While we were catching up with Glenn he reminded me that the ZCG Big-Brakes are better than any of the other setups he’s driven, the only one that feels and behaves like a modern car. He loves them.

 

What’s next for the Z? Glenn says its due for a refresh..NOS door panels, some engine bay fuel plumbing updates and maybe a change from the Ground Control/Tokico coil-overs. Aside from the Z Car Garage Big-Brakes , it remains very much the same as he set it up over 10 years ago. Big thanks to Glenn for the support and feedback. We look forward to many more race events and drives with you. Enjoy the photo gallery below and LONG LIVE THE Z!

 

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