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Z Love Affair: Matt’s 1972 Datsun 240Z

Filed under: 240z,Featured Cars and Projects,Parts,Performance
by Alvin G @ 2:40 pm on February 18, 2022

 

Matt M called Z Car Garage for an inspection after he purchased this 1972 Datsun 240Z from Denver, Colorado. Once at the shop, we found that it needed some work for Matt to really Enjoy The Ride. Our Z Car Garage Big-Brakes and Z Car Garage CV Axles along with a full suspension refresh and engine tuning make it just right.

 

Z Destiny

Before we explore the upgrades, let’s take a look at how Matt found his Z car…

My love affair with the 240Z began in 1972. A school friend of mine said, “Do you want to come with me to Laguna Seca to watch the CanAm and Formula 5000 races this weekend?”. I was all in and early that Saturday I pedaled my bike over to “Roger’s” house (a friend of his older brother) who offered to give us a ride. Unbeknownst to me, Roger had a gorgeous dark blue 240Z. Since there were three of us and I was the tag-along, that meant I rode in the back. Luckily, at that point in life my 6’2” frame was struggling to get over the five foot mark.”

 

“I can’t claim that it was the most comfortable ride, but it was definitely the funnest ride I’d had in a car. On a lonely stretch of highway 68 out of Salinas we pushed Roger to go 100 mph. He obliged his two early teenage passengers only briefly before slowing down for fear of a ticket. I was hooked though for life. What set the hook even deeper was getting to watch John Morton and the BRE race team tear up the field in their Datsuns that day.”

“Fast forward four decades that spanned a long career in the Marine Corps, some government work, getting three kids through college…I found myself regularly searching the classic car sites for a 240Z. I saw a ‘72 for sale in Denver. It had two previous owners besides the car shop that was selling it and looked to be in good shape. It was July of 2020 so we were in full pandemic mode. It didn’t matter, I was in Denver the next night to see the car. The next morning I drove the car and bought it. The brakes were horrible, the clutch was worse, it needed tires, but the engine ran well.

Matt driving home West from Denver. Winnemucca, NV

“When I got home I sent a note to a guy I worked with that was building out a 510. He told me about Z-Car Garage so I did a little research before calling Rob at the shop. After reviewing detailed pictures of the car, Rob said he’d work on it. That was a critical turning point for this 240Z. Rob doesn’t typically sugar coat his words, which I love. After going through the whole car he said, “It’s a nice paint job, but the car needs a lot of work before I would consider it even safe to drive.”

 

After a few conversations we settled on a plan to make Matt’s Z amaZing. Let’s start with the engine bay…

Drivetrain

 

In February 2021 Matt came in for an inspection and we found a few items that needed attention immediately. We performed a compression/leakdown test to make sure the engine was healthy. A list of items that were addressed/replaced: all new cooling hoses, sparks plugs, new plug wire set, fuel filter, valve cover gasket, valve adjustment, 280ZX alternator/starter, clutch hydraulic service, ceramic-coated MSA 6 to 1 header to our ZCG exhaust system and Z therapy carbs.

 

More pictures in the gallery! Pertronix igntion with Blaster2 coil and our favorite JWT aluminum flywheel with HD clutch:

 

Dyno Tuning

With fresh Z Therapy carbs and MSD Blaster 2 coil with Pertronix ignition Rob set the AFR/timing for best performance and drivability. Rob dyno tuned the L24 making 101hp/119tq baseline and now 132hp/139tq at the wheels:

Enjoy the dyno video below:

 

S30 World Fuel Tank

 

We found sediment in the fuel tank and decided to start fresh with a new S30 World reproduction unit. This a great product we are really happy with coming from owners Gustav Oplasnik and Chris Visscher, Z enthusiasts/restorers:

 

Chassis and Suspension Upgrades

 

With Matt’s Z at the shop we proceeded with upgrades to make it a fantastic, reliable driver. For our clients that are cruising with occasional “spirited” driving we installed our “Stage 1/light street” suspension. New parts from Techno Toy Tuning included adjustable T/C rods and rear lower control arms. We really appreciate Gabriel and his staff at T3. They make some of the best suspension parts out there for Z cars.


A full front suspension rebuild included new rack bushings, front control arm bushings, ball-joints, tie-rods, new wheel bearings front and rear (OEM genuine Nissan seals/parts), KYB strut inserts, Eibach lowering springs trimmed Macpherson bumps stops for full travel and a ST sway bar set. Powder-coated suspension pieces and plated hardware throughout:

 

ZCG Big-Brakes and CV Axles

Brakes: every vintage Z car that we build here gets the ultimate setup: our Z Car Garage Big-Brakes for small wheels.  Everyone that drives our 1971 Series 1 240z shop demo car is sold on our Z Car Garage Big-Brakes  and Z Car Garage CV Axles! Butters has a way of doing this to our customers 🙂 Read below for a brief description of these parts:

    
 

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 engineers at 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 some 14″ wheels) 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 Matt’s brakes and installed our ZCG Big-Brake kit with a new brake master cylinder from Nissan, brake booster and parking brake assembly.

 

New brake master cylinder from Nissan and stock vs Big-Brakes. New brake booster and vacuum hose set from MSA:

 At the rear, the factory drum brakes were replaced with our ZCG Big-Brakes. Factory handbrake functionality IS 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 90 CV axle kits on customer cars and we are stoked with all of the positive feedback.

 
 

Matt’s stock half shafts (L) and ZCG CV axles installed:

 

Matt is throughly impressed and happy with all of the chassis and engine upgrades:

“The Z-Car components, especially the big brakes and CV axles, perform flawlessly. Most importantly to me, every ride I take brings me back to my youth and the fun I had dreaming about owning one!”

Panasport Wheels

Complementing the new springs and shocks on Matt’s Z are Panasport Wheels with 225/50/16 Toyo R1R tires. The Z was fully aligned afterwards:

 

Recaro Seats

 
We replaced the stock seats with our favorite vintage style seat, the Recaro Specialist in leather:

 

Matt recalls his love for Recaro:

“I love the seats. I remember seeing Recaro ads when I was a kid. I used to subscribe to Motor Trend and Sports Illustrated. I’d see cars in Motor Trend with Recaros. There was a running competition between the Motor Trend that spotlighted the Brock Buster 510, and the swimsuit issue with Cheryl Tiegs.”

One of our favorite upgrades to the interior of an S30 is our ZCG sound deadening package. Usually found in our full-blown ZCG restorations, the result is a less tinny sound and almost Germanic-like “clunk” when you shut the doors.

 
  

Enjoying the Ride

 
 

We loved seeing Matt at the car corral during the Velocity Invitational at Laguna Seca. He’s super pumped about his Z and we are too:

” I see people pulling out their phones to take a picture when I am stopped at traffic lights. When I parked it recently in the car corral at the Laguna Seca’s vintage races, it got more visits than any of the Mclarens, Vettes, Porches or Lamborghinis.”

Welcome to the Z car family!

“The pandemic and supply chain mess definitely extended the timeline, but it was well worth the wait! I smile every time I drive it now. The Z-car brakes are fantastic, Rob installed a tuned exhaust, built out the suspension system, drivetrain and put in a new clutch. He cleaned or fixed more things than I can list. I got an early reveal (which Rob wanted to avoid) because they needed to make sure I fit into the new Recaro seats. The early reveal just made me more anxious to drive it. When I drove it for the first time about a week later, it was everything I had hoped for.”

 

Thank you for your patience and support, we loved working with you Matt! Happy that you are a Z car owner, welcome to the family and LONG LIVE THE Z!

 

More pics in the gallery

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ZCG PARTS: Z Car Garage Big-Brakes and CV Axles in Japan!

Filed under: 240z,Parts,Performance
by Alvin G @ 2:40 pm on February 8, 2022

 

We are really happy to see our Z Car Garage Big-Brakes and Z Car Garage CV Axles installed on this Datsun 240Z from Supermachine in Yokohama, Japan.

 

Supermachine purchased and installed our Z Car Garage Big-Brakes (for small wheels), complete with parking brake. They added a custom touch to the Stoptech calipers too:

 

 

ZCG Big-Brakes

Our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles have been standard on numerous ZCG builds. Below is a brief summary of the Big-Brake Kit:

    
 

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:

 
 

ZCG CV Axles


Our Z Car Garage CV Axles help transmit power to the ground and ensure smoother operation compared to your standard half shafts. These are 100% bolt-in replacing your half-shafts and does not use aluminum adapters commonly found in aftermarket units. We have over 150+ CV axle kits on customer cars and we are stoked with all of the positive feedback.

 

Supermachine installed a set of our ZCG CV Axles, including a photo of the factory half shafts for comparison:

 

Over 150 sets of our ZCG CV Axles are installed in client’s cars all over the world. For more information please visit our detailed post our HERE. Below are just a few examples of race cars running out CV Axles:

Race car driver, restorer and Datsun Historian Glenn Chiou is running our ZCG CV Axles in this IMSA GTU 260z race car!

 
 

Racer Brad H is running ZCG CV Axles in his IMSA GTU race car:

 

Race car driver and restoration specialist Jim Froula of Racecraft is running ZCG axles in several of his cars:

Set #246 – installed May 2018 on the “Harry Stewart #52” Datsun 510:

 
 

Set #247 – installed April 2018 on the 260z

 
 

Set #248 – installed on Adam Carolla’s “Greg Sorrentino #90” Datsun 510.

 
 

Thank you for your support Supermachine! We are proud to be a part of your build with solid parts choices like the Jenvey ITB EFI-fed L28 with Kameari header, Haltech ECU, Sachs coil-overs and Techno Toy Tuning suspension.

 

Can’t wait for the finished product. You can see more of this build on Instagram.  Long Live The Z!





 

Z Car Garage is excited to collaborate with Datsunworks and develop their brilliant KN20 dual-overhead cam (DOHC) cylinder head designed for the Nissan inline-6 L-Series engine. This is a Honda K-series derived cylinder head with superior flow rates and modern valvetrain components effectively transforming your SOHC L-series into a high-revving DOHC engine.

 

We have installed the Datsunworks head into our client Gary’s Datsun 240Z (affectionately called the “Behemoth”) and it is currently in the tuning/testing stage. In conservative tune it made 350hp/248tq at the wheels. Recently we joined photographer Naveed Yousufzai at a photoshoot for full feature on Marqued.com. Check out the story and amazing photos by Naveed with amazing shots at Marqued HERE.

 

The photo shoot left us breathless and we really appreciate how the small details are captured like the Behmoth’s integrated roll cage, Recaro seats, 6-speed shift knob and 10krpm tach…check out the feature!

 

This video shows behind the scenes action of the photoshoot for Marqued.com. I tried to capture the incredible induction sound the KN20 creates. For the first time we cruised on the freeway together with the Behemoth…it was the “trifecta” with 240Z, 510 and Datsun Roadster. Turn up those speakers and enjoy!

 

For more information (and video) on the KN20 and visit our previous post HERE




TUNING: Two L-Series powered Datsun 240Z cars on the dyno

Filed under: 240z,Datsunworks,Performance
by Alvin G @ 5:10 pm on January 11, 2022

 

Last Friday we made some glorious L-Series music with two of our client’s Datsun 240Z cars. Gary’s Datsun 240Z, affectionately named the “Behemoth” has accumulated some mileage on the Datsunworks KN20 cylinder head and the dyno confirmed the same power level.

 

Khang’s 1973 Datsun 240Z was completed in October and he returned with 1,000 miles on the 3.2L L-Series. We adjusted the valves and double-checked power levels.

 

Happy to see both builds healthy and confirm power output. Enjoy the music from the both L-Series engines, sporting Jenvey ITB EFI managed by Haltech 750 Elite ECUs backed by the CD009a Six-Speed transmission. LONG LIVE THE Z!

 

 

 

 





 

Our client Jas D listed his 1991 Aztec Red 300ZX Twin Turbo for auction on Bring a Trailer. You can view the auction HERE. Below is our blog feature of the Z, enjoy and happy bidding on this stunning Z32.

 

To appreciate the 1991 Aztec Red 300ZX Twin Turbo pictured above we must tell you a story of love, heartbreak, persistance and ultimately satisfaction. Z Car Garage client Jas D has been with us since 2014 when we helped build his 1990 Nissan 300ZX Twin Turbo. This Super White, 44k original-mile example was treated with all the ZCG touches that make a Z32TT go from wonderful to extraordinary. We dubbed it the “Z Masterpiece” (see more here) as it embodied the total package: Power. Handling. Braking. Aesthetics:

ZCG 82514 CAM 4 087
CAM 2 103114 203 Cam 3 103114 012
 

Jas totally Enjoyed The Ride in this Z, adding 28k thrilling miles with ZCG maintaining it over the years:

“My brother and I have been ZCG customers for almost a decade. I met Rob when I called about getting a PPI on what became Z Masterpiece. At the time, a Super White manual came up on AutoTrader (I LOVE Super White-OMG). It was a low-mile, one-owner, meticulously-maintained time-capsule. Rob actually said WOW after the PPI, and we worked with ZCG over a couple years on a few iterations until we got Z Masterpiece. That car was perfect!  My dream Z; I loved driving that car EVERYWHERE! It is probably my favorite car of all time!”

ZCG CAM4 71314 033 IMG_1615 
 

Unfortunately, in 2016 the Z was stolen.

“On October 29, 2016, Z Masterpiece was stolen. We cried, we laughed, we got angry, we sulked for a couple months, forgot about it, and then my dad found the car driving into SF on January 25, 2017. The car had clearly been driven like it was stolen. But, believe it or not, all the expensive components were still on there. We sent it to Rob right away, and he helped us turn Z Masterpiece into the Red Devil Z (which I purchased on April 20, 2017 with 66,XXX miles).”

From Z Masterpiece to Red Devil

 

Persistance paid off, and Jas found a really clean Aztec Red ’91 Z32TT with only 66k miles. All of the upgrades from the Super White, Z Masterpiece were transferred over:

“Rob pulled the motor from the Super White, re-did all the seals/gaskets, and then put the driveline back together into the red Z32TT.  Coincidentally, both cars and engines had 66,XXX miles when this was done in summer 2017.”

 

 

Let’s take a look at the modifications that turn the already stellar Nissan 300ZX Twin Turbo into a superb, balanced sports car.

Engine

 

Though bone-stock with an amazing 44k miles on the clock it needed some attention. We went through the hydraulics and performed full 60k-mile services.

ZCG CAM4 71314 048 ZCG CAM4 71314 043 ZCG CAM4 71314 052
 

Jas wanted to improve power and handling and we happily obliged with a comprehensive list of upgrades this year.  Starting with the drivetrain, the original transmission was replaced with a brand new(!) unit from Nissan:

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The clutch had seen better days so we replaced it with a JWT unit including their heavy duty aluminum flywheel:

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A JWT ecu w/boost jets manages uprated NISMO 740cc injectors and the Selin dual MAF. Improved breathing comes from Ash-SPEC inlet piping and dual JWT pop chargers:

Cam 3 103114 007  
ZCG 82514 CAM 4 037 ZCG 82514 CAM 4 047 ZCG 82514 CAM 4 051
 

On the exhaust side, restrictive original downpipes were replaced with these beautiful Specialty Z 3″ downpipes. Note the divorced wastegate piping:

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Following the new downpipes are more parts from SPZ including 3″ mid-pipes and a cat-back exhaust system to replace the OEM setup:

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OEM vs SPZ:

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ZCG 82514 CAM 4 007 - Copy ZCG 82514 CAM 4 014
 

More upgrades. We installed 4.08 Leader gears, Ash-SPEC Massive SMICs, 2.5 IC tubing, and  SPZ Hi-5 upgraded clutch. The BDE low-profile Z32 motor mounts are a smart alternative to OEM that allows more clearance larger for intakes:

CAM 2 103114 141 CAM 2 103114 142 
Cam 3 103114 006 ZCG CAM4 71314 079 ZCG CAM4 71314 087
 

Rob recently dyno-tuned the red Z, making 353hp/353tq to the wheels on 91 octane:

 

Stoptech Big-Brakes

 

With all of the speed parts installed next we tackled chassis improvements. Let’s begin with brakes followed by suspension:

ZCG 82514 CAM 4 061

We love Stoptech’s products and use them on our own vehicles.  Z32s are relatively heavy and with higher hp the stock caliper/rotors can be taxed quite easily. Jas took it up a notch and ordered a Stoptech 4-wheel Big-Brake Kit for his beloved Z.  Shown above is the ST40 caliper (front) squeezing 332 mm rotors and at the rear are ST22s on 328mm rotors.

The installation:

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Yes, they are pretty but also very functional. Speaking of aesthetics (that are functional, too), the new calipers are nicely framed between the spokes of these sweet VOLK TE37SL wheels, finished in bronze and sized 18×9.5/10.5 in high-pad offset with center caps.  We like your taste, Jas.  The lightweight TE’s were wrapped in Yokohama tires:

 

Suspension

The suspension was gone through completely with all new parts. KW V3s are our favorite coil-over setup, replacing the Stance coil-overs that the Super White Z had. Stillen sway bars are also shown:

 

Stock vs KW V3s installed front:

 
 

Rear:

 
 

Every little nook and cranny of the suspension was handled. New SPL tension rods, upper front control arms, new rear wheel bearings and HICAS removal/eliminator:

 
 

T/C rods, Stillen sway bar, we also replaced the rack bushings:

 

The Z looks great!

 
 

The interior is in great condition as well:

 
 

Jas and his brother love the Z. Thanks for letting us be a part of your journey!

“The Red Devil Z is vicious and so fun to drive. It is the quintessential 1990s Japanese sports car  – red – gold wheels – TTs – exhaust.  It goes fast. It stops fast. It turns fast. Z32TTs are the BEST! We love and respect Rob and the team at ZCG. Rob is a total big brother. He and the team have been with us through the passion and pain.”

**This Red Z32TT will be for sale on Bring a Trailer!**

 

The quest for the perfect Z is almost complete as Jas just found one of the cleanest Super White z32s on Earth. That means the red car is for sale! Jas is listing it on Bring a Trailer. We will update this post and social media when the auction goes live so you don’t miss out! For now, enjoy the extensive photo gallery below, and LONG LIVE THE Z!

 

Lots of pictures in the gallery, enjoy!
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