ZCG CV Axles

Z Car Garage is proud to offer a CV axle conversion kit for your Datsun S30 and 510. We have sold over 50 sets of axles, with customers installing and enjoying them on everything from street cars to full-blown IMSA racers. These CV axles will help transmit power to the ground and ensure smoother operation compared to your standard half shafts. Full details can be found HERE

 

We love to hear from customers that are using our products. John B comes from Florida and he sent us these pictures of his S30 project getting ZCG CV Axles:

 

John reports that the axles were easy to install and well-engineered. Thanks John, and nice work!

  

We are on our 3rd batch of CV Axles, please contact the shop to order your set!

ZCG Big-Brakes

 

Our ZCG Big Brakes have been winning Z-car enthusiasts locally and across the US. We are super stoked to hear from our friends at JDM Legends installing the brake kit on their customer’s 280z project:

  

The next run of Big-Brake Kits will be available in 3-4 weeks. We are also working on an installation manual so we can ship this kit worldwide. Blog posts documenting all of our customers running the ZCG Big-Brakes can be found HERE.

Long Live The Z!

 

 

 

 

 

 

 

The 2019 Coastal Range Rally was held March 15-17 and we had an absolutely blissful driving experience. Hosted by Driving While Awesome, this 3-day event brings together interesting cars and their drivers sharing a common passion for enjoying the best driving roads in California. This year the rally began in Southern California heading back to the Bay Area and we participated with the Z Car Garage 1970 Datsun 240z. Here is our report from the weekend filled with open roads, seemingly endless stretches of curvy mountain passes and good company.

 

The ZCG Datsun 240z

 

Rob and I planned to run this event together but he had to race in Spec Miata at Thunderhill. He handed me the keys to “Ms. Butters”,  a 1970 Series 240z that has become the shop demo car and I happily obliged. While this S30 deserves its own feature, here are a few details on the build:

Engine: Stroked L-series with triple Mikuni 44 carbs and special cam profile (full spec/dyno soon)
Suspension: Full KW coil-over suspension (ZCG-spec)
Brakes: Z Car Garage Big-Brakes (for small wheels)
Drivetrain: ZX close ratio 5-speed, Z Car Garage CV Axles, OS Giken 4.11 LSD
Wheels: 16×7 Panasport with 225/50/16 Bridgestone RE71R
Interior: Recaro LXF seats

   

The Z performed admirably without a single problem over the 1200-mile event. This is a testament to thorough rally-prep (thanks ZCG crew) and the wonderful upgraded suspension/chassis. These modifications offered a great balance of ride compliance and stiffness for the canyons with a seamless transition between rough to smooth surfaces. The ZCG Big-brakes also delivered great feel and zero fade…truly confidence-inspiring. Enjoy this video of Ms. Butters with extended Fujitsubo exhaust footage and hear that L-series sing!

 

 

Day 1: Palmdale to Ventura

This year the rally was dubbed CRR “Rewind” as the starting point was in Southern California heading north through the Central Coast. I joined fellow enthusiasts Glenn (R32 Skyline) Naveed (Porsche 911) and Gen (E30 M3) Friday evening to blast down to the starting point in Palmadale, CA. Instead of taking the highway we took an exciting route through HWY 25:

 

The next morning all rally participants met just outside of Palmdale to grab their swag bags and rally maps. The DWA organizers encouraged us that CRR isn’t a race, and to enjoy the roads at our own pace. I can’t emphasize enough how great this group of folks is. A good portion are 3rd-time CRR rally drivers and the positivity was contagious.

  

I hopped in the Z and joined Naveed and Gen on this stage towards Agua Dulce. Gen led us on a slight detour through Angeles Crest and it was exhilarating. We stopped at a lookout, realizing our cars represented the 70’s, 80’s and 90’s icons!

  Lunch in Agua Dulce and back on the road to Ventura. Mandatory Datsun content: I was happy to see 2 other Z cars (grey is Lloyd’s) and a special ’69 Datsun Roadster (Kevin and Heather). Sporting engine/suspension upgrades this little roadster surprised many with its performance:

 

Lake Castaic overlook heading westward:

  

The Ventura hotel parking lot was a car show representing a great feature of CRR: diversity. So many cool cars from all era’s and marques! This was a fun time chatting with fellow rally’ers followed by a DWA hosted dinner:

 

Day 2: Ventura to Paso Robles

The second day (3/16) was my favorite stage of the rally. Our destination was Paso Robles, with a stop in Taft. I had no idea how breathtaking the scenery would be on this stage as it was filled with Alpine scents, pastures, desolation, oil fields and small sleepy towns. Truly a feast for the senses, and EPIC driving. The kind of driving that makes your arms fatigued!

Through Ojai via HWY 33, in the sky through Frazier Mtn. Park:

  

Lockwood Rd. had several streams we had to drive through. Ali Javidan took some really cool shots of cars fording through!

 

After lunch in Taft, Naveed spotted an oil field. Carb’d inline 6, EFI flat 6, and a 2.5L 4-cylinder:

 

Our next stage was HWY 58 heading to Soda Lake. This stretch of freshly paved road was so much fun that many of us turned around to do it over again! My absolute favorite part of CRR. The Z was such a joy to drive through here:

 

At the junction of 58/7-mile Rd. was a super bloom. We definitely stopped to take it all in after the brisk drive. Erich in his modified EVO:

  

Glenn let me drive his R32 to Soda Lake and he took the Z, thanks for the picture Matt!

 

View from the overlook revealing Soda Lake. It was also reached via an optional dirt Road if you dared!

 

Don’t let the perspective fool you 🙂

  

A breather just before reaching our hotel in Paso Robles

  

It is difficult to describe the driving experience through photos, so please enjoy this video I made of Day 1 and 2 of CRR!

 

Day 3: Paso Robles to Laguna Seca

I decided to join Glenn and conclude our CRR with a visit to Laguna Seca to see our friends vintage racing. Dave Stone was in his B-Sedan 510 and the entire Racecraft crew was also participating:

   

It was a beautiful day check out the gallery below for more pictures! Here is a video from ‘Seca:

 

Thank you DWA!

The Coastal Range Rally was a surreal experience. I am still day dreaming about those incredible roads that we travelled all in one weekend. I’m not alone, as many participants are also suffering through “CRR withdrawals”.  See what I mean by all of the #CRRRewind posts on Instagram. The event was that good. Big thanks to the crew at Driving While Awesome and old/new friends met during the rally. We are definitely signing up for the next CRR! Enjoy the picture gallery below and LONG LIVE THE Z!

 

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Neal D brought his 1972 Datsun 240z to Z Car Garage after being restored by a shop in SoCal last summer.   He wanted us to get this 918 Orange beauty running correctly and double-check the workmanship performed so we happily obliged.

 

The Z had several issues that we resolved after a thorough inspection. Starting with the braking system, we corrected and re-routed all hydraulic lines. The front and rear circuits were swapped on the brake master cylinder, we corrected this as well. The pin from the brake booster to the M/C was adjusted to enable a good initial “bite” from the pedal. Our usual ZCG brake services included Stoptech 309 pads. Finally, we bled the system and adjusted the rear brakes correctly.

   

The transmission had to be removed to correct issues in the clutch area. We found stripped bolts, a mis-adjusted clutch pedal, and incorrect T/O bearing collar hardware:

   

Moving down the drivetrain, we found and corrected improper hardware on the half shafts:

  

We nut/bolted the entire car, correcting all suspension issues like improperly lubed bushings. More detail work: the wiper system beneath the cowl was setup incorrectly being 180 degrees out.

  

A critical part was missing from the fuel system: the vapor tank. We removed the fuel tank and replaced all vapor lines with our ZCG aftermarket hose kit:

  

The missing vapor tank was re-installed and the entire system was smoke tested to confirm proper sealing. A full fuel tank was also included in our testing:

  

Neal wanted the car back on the road in top driving condition. We installed an O2 bung into the exhaust and street tuned the Z after adding a Pertronix ignition. The Z was dialed-in and ready to rock:

 

Neal has owned this Z for many years but also loves his Porsche 911. When we met at Rennsport we gave each other that look: P-car or Z-car we both Enjoy The Ride! Thanks for bringing your Z to us!

 

 

 

 

 

 

Z Car Garage is proud to offer a CV axle conversion kit for your Datsun S30 and 510. We have sold over 100 sets of axles globally, with customers installing and enjoying them on everything from street cars to full-blown IMSA racers. These CV axles will help transmit power to the ground and ensure smoother operation compared to your standard half shafts. Full details below:

 

For years we have used aftermarket CV axles that utilize an aluminum adapter prone to loosening up over time. Despite efforts to keep things tight (Loctite, hardware changes) we had to keep an eye on them. We developed a better solution that eliminates the need for aluminum adapters and remains 100% bolt-in like a factory half-shaft.

  

Designed and manufactured locally with KAD Models, the ZCG CV axle kit works in both R180 and R200 configurations.

 

  

These are the beefiest CV axles on the market. They have been tested on the track by our vintage racing customers and also in high hp* street cars (powershifting, clutch dumps, etc.). Each axle has a serial # for peace of mind:

 

The CV axle kit is available now from ZCG for 1595.00 + freight and they come with everything you need to install on your car. Contact us at 408-452-0350 or send Rob an e-mail rob@zcargarage.com to purchase. Installation is just like doing a half-shaft: there is even a marking that shows you where to line up bolts and special hardware:

 

The ZCG CV Axles in action

The video below demonstrates the “looseness” associated with aftermarket CV axles that use adapters compared to the ZCG axles without adapters. Several customer race/street cars running our CV axles are also shown. Enjoy!

 

S30 and 510s running the ZCG CV axles

 

Randy Jaffe’s #46 BRE Datsun 240z received the very first set of ZCG CV axles: Serial # S30-000240!

 

The Bluebird SSS Coupe and Hakosuka Skyline are both running ZCG CV axles on the race track:

   

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 – will be installed on Adam Carolla’s “Greg Sorrentino #90” Datsun 510. We are pleased to report that Jim will also be installing a set on his “George Alderman #32” 300ZX! The ZCG CV axles are also perfect for high hp street cars. The following customer cars are all running our CV axles now:

Frank B’s fuel-injected, 6-speed stroker L-series:

  

Gary’s 430whp LS3-powered 280z:

  

Scott W’s EFI stroker L-series:

  

James S’ L28ET:

  

Brian’s 1972 240z:

  

Finally, Gary’s “Behemoth”  OS Giken TC24B1Z powered S30:

Technical Information:

The Z Car Garage axles were designed to help remove much of the backlash aka clunk seen in many older vehicles. Modern technology has given us the ability to create a set of axles to exacting standards. We started with a high quality set of CV joints that were found to be the most consistent in both major and minor spline diameters. We then began to design the axle itself to share the same tight tolerances. We are holding a +/- .01mm diametric tolerance on both the inner and outer spline diameters. This gives us the feeling of direct connection between differential and wheel. The axle shaft major diameter was increased to 30MM to give owners a bit of added comfort in knowing the main shafts are stout. Once the axles are splined they are then heat treated to obtain the desired harness. After heat treat the axles are then nickel plated to add corrosion resistance. The inner and outer flanges are made from 316 stainless steel and mate to the CV joints with tapered alignment surfaces to ensure concentricity is maintained throughout the axle thus reducing vibration. The inner flange attaches to the stock R series differential utilizing the Nissan factory hardware. The outer flange attaches to the driven stub with bolts specifically designed and manufactured for the Z Car Garage axle installation kit. These bolts are manufactured to grade 12.9. All ZCG axles are manufactured locally which helps us maintain the fitment and quality we require.

Materials

Axles : Hardened AISI/SAE 4340 Alloy Steel, 4340 is a nickel-chromium-molybdenum alloy steel

Drive flanges: 316 stainless steel, Type 316 steel is an austenitic chromium-nickel stainless steel

Outer Flange Bolts: Hardened 4140 Alloy Steel , AISI or SAE 4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents

 

 

At Z Car Garage we love keeping Z’s on the road. From concours-level restorations to light refurbishments, making a customer’s goals reality is our passion. Richard Y’s 1970 Datsun 240z is a great example of an S30 that has been maintained and restored by us for over a decade. We met him years ago when Rob was working at Scott Performance. In 2004, when we bumped into Richard at Tan’s car wash in Santa Clara he didn’t realize that Rob stayed local, opening ZCG. He brought his Z to us thereafter and we maintained it for the last 15 years.

 

In addition to being a great person and a working professional, Richard daily-drives this Series 1 240z. He is also a purist of sorts, not wanting large wheels and tires, a high-power engine or fancy brakes. His desire is to explore, drive, love and touch the Series 1 car as it was back in the day. In 2011 Richard decided it was time to give his Z some love, and the refurbishment was performed with his “vintage” preferences in mind. A few ZCG touches were added along the way.

Interior

 

Part of enjoying the daily-driving experience comes from a functional, pleasant interior. The dash was previously covered with a cap, having multiple issues underneath. We removed the dash and had it re-conditioned by Dash Restoration:

   

While the dash was out we refurbished the entire heater assembly. The heater core was cleaned and pressure tested.

  

All duct-work was resealed to allow full HVAC function including defrost at max settings. A Honda fan upgrade allows faster air flow and all cable/actuator linkages were re-done:

   Heater /motor back in place:

 

We finished restoring the HVAC by getting the vintage A/C unit functioning again. New condenser and lines:

  

Once the new dash returned we started re-assembly. All hardware was replaced and gauges were tested for proper operation:

   

A host of rare, NOS factory parts from Rob’s stash helped complete the dash. Series 1-specific parts like the map light trim and coin-tray were broken:

 

The NOS coin tray and map light trim installed:

  

We updated the sound system with a modern head unit and hatch speakers:

 

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.

   

Full weatherstrip replacement on the doors, hatch and windows. We also ensured that windows travel up/down smoothly:

  

The finished interior. Ready for Richard to ready enjoy daily driving:

The Z Must Go On

Our man William did some light paint work on car, as this was a “light” restoration and we didn’t want Richard missing his Z for an extended period.  Unfortunately in 2017 the Z suffered from a front end impact.

The car was hit bad enough that the appraisal house, Richard and all of us thought the car was totaled. Rob luckily had just acquired a Series 1 car as a donor. The front end was grafted on and William fabricated a new radiator support and front fenders to make car whole again.

Engine Bay

 

Fresh from paint and with the engine out we focused on making the bay look sharp. All hydraulic lines were plated with new NOS brake and clutch master cylinders, distribution block and booster:

  

New heater hoses, plated fasteners and new rubber isolators:

  

The radiator was upgraded to a Koyo Race unit:

 

The drivetrain itself received minor refreshing including new drive belts, overhauled and tuned SUs, and a new clutch/flywheel backing the factory 4-speed transmission:

 

A few more details and the engine bay is complete.

 

Chassis/Suspension

Although we looked at every nook and cranny nook on this Z we always kept in mind that Richard did not want everything upgraded. He lives and breathes Vintage Z. The suspension was replaced front and rear with NOS parts like new factory ball joints, steering rack bushings, etc. More pictures in the gallery!

   

Eibach springs with Tokico Illumina struts:

 

The rear diff was cleaned up:

 

The brakes were restored to factory spec with upgraded Stoptech slotted rotors and our favorite 309 pads:

  

The rear drums received new wheel cylinders:

  

Since the harness was damaged in the accident we used one from the Series 1 parts car.  All connections were degreased and cleaned, resistance checked and finally 3M wrapped.

  

The entire fuel system was gone through. Here we drop the fuel tank, boil it out and replace all rubber lines. Also visible is the ZCG exhaust system:

  

Exterior

 

The exterior had to look as good as the engine bay and restored interior. All chrome pieces like front/rear bumpers and door handles for straightened and re-chromed.

   

All of the stainless trim was straightened and polished. Shown are drip rails, all window frames, turn signal frames

  

Window and door hardware plated including latches. Re-chromed handles:

  

Little details like factory Nissan wiper blades and a NOS mirror finish the vintage “look” we all cherish:

   

 

NOS wipers:

  

Tail panel assembly:

  

A variety of NOS parts like Euro front turn signals and a full set of emblems adorn the Z:

  

Series 1 pillar emblem:

  

The final touch: 15″ 5-slot wheels offer more tire choices while resembling the classic 14″ size slots:

 

 

Ready to Enjoy The Ride

 

With a nice interior, paint and chassis work Richard’s Z is ready to be enjoyed on a daily basis. As long as you have the parts and the passion Z Car Garage will do all we can to keep Z cars on the road. Enjoy The Ride, Richard!

 

  

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