We are excited to see our customer James Stephens’ 1972 S30 Datsun 240z featured on Speedhunters. Check out the article with great photos by Naveed Yousufzai HERE!

Paolo M came to ZCG for a differential build on his 370z. The G35/350z and G37/370z cars all share the same diff bushing failure due to aggressive driving or simple wear and tear. From Nissan, the OEM diff bushing is filled with silicone, and will burst/leak this fluid resulting in a noticeable clunk when shifting.  Paulo’s Z34 had the tell-tale sign of the diff bushing failure, with visible leakage on the cover:

 

Nissan will not replace the bushing alone. By design, Nissan wants you to replace the entire rear subframe at a substantial cost.  Fortunately, Whiteline makes a really nice bushing that can be installed and it is a mandatory solution whenever we perform a diff job at ZCG. In addition to replacing the diff bushings, we replaced the bearings, changed the final drive and installed an OS Giken limited-slip unit:

 

The diff is removed from the Z and OS Giken LSD prepped:

  

We check the pinion depth by testing the wear pattern on the ring gear with paint:

   

For an added piece of security for the differential we installed a NISMO diff cover. Its extra oil capacity and finned design aid in cooling for hard driving. The unit was filled with OS Giken gear oil:

 
We finished with an engine oil change and Paolo was back on the road. He’s visited ZCG several times and we like working on his Z34. Enjoy The Ride Paolo!

 

We have been working with Mike M and his 2006 Z33 since last year. With every visit to ZCG this 350z gets upgraded in both power and chassis areas. In November 2017, with 111k miles on the VQ a Vortech supercharger was installed with supporting mods:

   

Chassis improvements: KW V3 coil overs, SPC front/rear control arms, Hotchkis sway bars and a full alignment. We also installed ART pipes to replace the factory cats:

 

Hotchkis front and rear sway bars:

   

ART Pipes:

  

Mike’s latest visit to ZCG included fueling, gauges and more power upgrades. The fuel system was converted to support E85/ethanol starting with a Walbro 485 in-tank fuel pump:

 

Next, a CJ Motorsports Stage 2 fuel return system help keep up with the Walbro pump:

  

Increased fuel demands of E85 require larger fuel injectors so we installed IDX 1050CC units. A Zeitronix ethanol sensor is critical for monitoring E85 content:

  

The brains to managing the E85 content is a Haltech Platinum Pro plug-in. A PLX Devices dm6 AFR/gen4 gauge pod also accommodates the Zeitronix ethanol sensor readout:

  

Final power adder was a 2.87 pulley for the supercharger and our ZCG air bypass for the race gate:

 

From the dyno charts below, having the ability to change the ethanol content of fuel allows for more hp/torque.  More smiles per gallon as well with E85 currently at $1.99/gallon

(left) Baseline before Haltech tuning: 331hp/286tq and (right) baseline to 91 octane tune with Haltech: 346hp/303tq to the wheels

  

Final 91 octane tune with the Haltech: 364hp/306tq at the wheels:

 

75% Ethanol tune: 421hp/345tq to the wheels:

 

To balance an extra 126hp power from the Vortech we installed a Stoptech Big-Brake Kit. Up front are 332mm ST40 calipers in red, with slotted rotors:

 

Stock vs Stoptech:

  

The new brake also look great behind the Enkei RPF1 wheels:

 

Enjoy the Ride Mike!

 

The 2018 Japanese Classic Car Show was held on September 15, in Long Beach, CA. This is the original vintage Japanese-car event in SoCal and in its 14th year, JCCS has grown incredibly–over 430 cars covered the lawn of Marina Green Park. The vehicles themselves remained a fantastic blend of stock, modified and restored. This is the most important show for Japanese cars, and the Z Car Garage crew keeps coming back every year to soak up the sun, see old friends and drool over some spectacular vintage builds.

   

ZCG Displays Two Z Cars!

 

Z Car Garage displayed two customer cars at the show: Randy Jaffe’s 1970 Datsun 240z and James Stevens’ 1972 Datsun 240z.  Randy’s Z was completed in time to be our booth car. This Series 1 S30 started as a project car 4-years ago with paint/bodywork performed by Bryson Richards of Classic Livery. The Z was shipped to us from Georgia for finishing Randy’s vision of a wild show/go race car:

 

Inspiration for the Jagermeister livery came from Randy’s obsession with Porsche, and the Max Moritz Racing Porsche 934.

  

We will take an in-depth look at this Z in separate post, but here are a few key details. Providing room for the 275/315-width tires is an authentic Pandem Rocketbunny aero kit. Randy channeled his passion for racing into this build and the chassis is virtually identical to his #46 BRE Datsun 240z, using zinc’d DP Racing suspension parts. The engine is a big displacement L-series running 13:5:1 compression, triple-Mikuni ph44s, a Fujitsubo header and glorious BRE-style exhaust. Running gear includes a close-ratio ZX transmission, OS Giken LSD for the 4.11 R180, our ZCG CV Axles and ZCG Big-Brake Kit (race version).

   

We are happy to report that Randy’s Z won 1st place, Best 240z in a class filled with incredible Z cars!

 

James’s 1972 S30 was displayed with fellow Z car owners in the show. At the heart of this beast is a turbocharged L-series managed by Haltech. Chassis upgrades include custom full-length subframe connectors, our ZCG CV Axles and Big-Brake Kit (328mm) behind Volk TE37V wheels.

 

A stack instrument cluster was integrated into the gauge pod, viewed from leather Recaro Pole Position seats. This Z has a very unique sound. We recently tuned it on E85, dyno results and videos coming soon!

   

We are very happy for James as he won the award for Best of JC Speed!

 

Stay tuned for in-depth reports on both of these Z cars coming to zcarblog.com.

Showtime!

Our friend and talented racer Troy Ermish transported both of our Z cars (and his 510) down to Long Beach Friday afternoon. Below is a video of the Z’s loading from the shop:

We unloaded early Saturday morning from the expansive parking lot near the new venue in Marina Green Park.  Immediately we could tell this location was larger and more vendor-friendly than The Queen Mary of past shows. Our booth was situated in a great spot, at the mid-point of the show with our neighbors from OS Giken.
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We are excited to sponsor and be a part of the 2018 Japanese Classic Car Show this Saturday 9/15 in Long Beach.  Stop by the Z Car Garage booth to see our Big-Brake kit for small wheels, CV Axles and pick up some free swag.

 

   On display in the ZCG booth is one of our latest builds, Randy Jaffe’s 1970 Series 1 240z:

  

 

We are also very proud of ZCG customer James S’ 1972 240z. He will be driving his turbocharged L-series down to JCCS and displaying it with fellow owners.

   

 

The show takes place from 9:00 am to 3:00 pm in Marina Green Park, and it is the highlight of all J-Tin shows!  Catch a glimpse of what JCCS is all about in our report Last year’s show. Z you there!