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

 

 

Happy Thanksgiving from all of us at Z Car Garage! We hope you can find time to Enjoy The Ride over the holidays. Please note our hours of operation below:

We will be closed this Thursday and Friday for Thanksgiving

ZCG will close on the 20^th of December 2018,  reopening on the 2^nd of January 2019

Thank you!

 

Nissan celebrates over 50 years of racing

There are vintage car races every month of the year, but few draw such amazing machines as the Rolex Monterey Motorsports Reunion. Each year the Reunion has a featured marque and this year it was Nissan, previously known as Datsun. This was the very first time a Japanese manufacturer was honored as the featured marque in 45 years of running the event! As you can imagine, excited Datsun racers and fans around the nation made plans to attend the Reunion held 8/23-26 at Laguna Seca Raceway.

 

We had a blast at the RMMR and I was once again fortunate to be on the Z Car Garage pit crew for several race cars. Read further for our report, illustrated by a 200+ shot gallery with videos. Enjoy! Here is a short introductory video highlighting the Nissan/Datsun group photo (50 cars!) and a taste of racing action to come:

An epic showing from Nissan Motorsports

Nissan really rose to the occasion, bringing historically significant race cars from Japan to offer a museum-like collection under its paddock tent. Our friends at Japanese Nostalgic Car (JNC) took an in-depth look at each of the cars displayed, catch their excellent coverage HERE. My favorites were the #46 BRE 510, Grand-Prix dominating R382, hyper-rare Nissan R390 GT1 Road Car, and of course the monstrous GTP ZX Turbo car. We wish they would have driven them on the track!

 

Datsun fans unite

When the announcement was made that Nissan would be the featured marque at the RMMR, we knew it had to be an unforgettable experience for all Datsun enthusiasts.  An event “not to be missed”, and that is where The Z Owners of Northern California (ZONC) comes in. We reached out to club secretary Ann Devor, and her team coordinated a Nissan-only parking corral AND a parade lap around the world famous, 11-turn, 2.238-mile jewel of a road course called Weathertech Laguna Seca Raceway.

 

Car corral attendance was impressive, and it was absolute bliss for all participants. There were over 130 cars including Datsun 510s, Z cars and roadsters followed by Z32s, Z33s, Z34s and GT-Rs.

  

Staging for the parade lap was awesome with smiles everywhere! Living legend Pete Brock even rode shotgun in a Datsun Roadster as the lead car. We were fortunate to get almost two full laps in, at a surprisingly brisk pace. Please see our picture gallery and link (from Jason Green) for shots of your car!

  

Missed out on the fun? In the video below you can see my coverage of the car corral and parade lap. Also included is parade lap footage captured from the Corkscrew, one of the track’s infamous turns, thanks to Gary Savage:

 

Serious recognition for Japanese Classics

 

The Reunion is a highlight for race fans, but it is also part of Monterey Car Week which is filled with classy events like auctions and the famous Pebble Beach Concours d’ Elegance. Another first for Japanese cars was the Japanese Automotive Invitational hosted by Infiniti. This inaugural event displayed landmark Japanese vehicles. While I did not have a chance to visit the JAI, Speedhunters did. We are proud of three cars displayed: Tim Corcoran’s stunning ’64 Datsun 1500, a hakosuka Skyline GT-R from our friends at JDM Legends,  and Brian Kippen’s Nissan Patrol:

 

Epic racing

With 50 Nissan/Datsuns racing this year the starting grid for Group 3B (B-sedan, roadsters), Group 5A (IMSA GTU) and even Group 7B (IMSA GTO) was a fan’s wish come true. Z Car Garage supported 5 race cars, and Rob Fuller would be driving one of them as well. Rob’s operational plan was to assign one technician per race car to ensure that all were ready for each session. It was an orchestral process to watch unfold, and we pulled it off as all 5 cars made it through the Pre-Reunion week and race!

  

Take a lap with John Morton in the BRE Datsun 240z

 

For this year’s Reunion, Z Car Garage prepared and supported the #46 BRE Datsun 240z piloted once again by our hero John Morton. Owner Randy Jaffe restored this Z over several years with fanatic attention to detail. The Z was shipped to ZCG from Georgia, needing refreshing from racing earlier this year at The Mitty (Nissan was also the featured marque).

 

  

At 76 years of age John Morton is still formidable behind the wheel!

  

Enjoy this extended video with in-car footage of John dicing it up with Porsche RSRs and BMW CSLs…Long Live The Z!

John finished the race as the fastest Z car in the field! 8th overall out of 52 cars with a best lap time of 1:41.8. The BRE 240z also enjoyed the Monterey scene off the track, taking a trip to the lush greens of the Quail and shop-lined streets of the Carmel Concours. The video below shows the drive to these events and features a bonus interview from Motor Trend with Rob at Z Car Garage:

 

Rob Fuller’s RMMR debut

…[read more]

 

Z Car Garage is proud to offer a CV axle conversion kit for your Datsun S30 and 510. 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:

  

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 28MM 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 8. 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

 

 

Each year the Historic Sportscar Racing association (HSR) organizes the largest and oldest event for Historic race cars on the East Coast. It’s called the Classic Motorsports Mitty and it took place at Road Atlanta, GA from April 27-29. We attended The Mitty to provide race support for Randy Jaffe’s #46 BRE Datsun 240z (driven by our hero John Morton) and Alex McDowell’s Datsun Bluebird Coupe and Hakosuka Skyline.

 

Nissan was the featured marque for the first time with John Morton serving as Grand Marshall so naturally every Datsun-fan was drawn to The Mitty. I took a Thursday night red-eye flight from San Jose with part of the ZCG crew and when we arrived at Road Atlanta our paddock was an absolute feast for the senses. Nestled primely across from the front-straight footbridge, we had an impressive display of West-Coast racers, from L to R: The BRE Datsun 240z, BRE 370z, Comedian Adam Carolla’s #44 Frank Monise Datsun 2000 Roadster and Bob Sharp 610, Alex’s Hakosuka Skyline and Bluebird Coupe, the Friselle GTU 240z, Dave Stone’s Frellsen B-sedan 510, Jim Froula’s (Racecraft) Datsun 260z, our friend Glenn Chiou’s VIPS/Loren St. Lawrence 240z and Bob Clucas’ IMSA GTU 240Z.

 

Take a Lap With John Morton

 

At 76 years of age John Morton is still formidable behind the wheel. Here he is piloting the #46 BRE 240z that we prepared around Road Atlanta; the very same track where he won the 1970 and 1971 National C-Production Championships!

 

Well, That’s Racing

The sweet smell of race fuel, frantic adjustments, checklists, and engines blaring to warm-up for the next session all reminded us how much we love racing!  From the on-board video above, you can see the BRE 240z performed well with John Morton at the wheel but what it does not show viewers is the not-so-glamourous side of racing: part failures. The Z ran great in Thursday’s practice but when we arrived at the track Friday morning, Rob told us the engine failed during the first session. He needed all hands on deck. What followed absolutely humbled me; the ZCG crew went to work in a supreme effort to get the #46 BRE 240z alive again for Saturday/Sunday’s races.

 

John Morton Must Race

To get a first-hand perspective of the Z’s revival I asked ZCG Lead Technician, Josh Corwin, to give us the play-by-play of the heart transplant. Please read on to see a video chronicling the events!

1) How, when and why did the engine fail?
It is still too early to know exactly what went wrong with the engine. A complete teardown will be performed to isolate the root cause. I can tell you that during Friday practice, John Morton was accelerating up Road Atlanta’s back straight coming up the hill before turn 10, in top gear at wide open throttle well over 100mph. That is when a major engine component let go resulting in multiple holes being punched through the engine block, affectively turning the engine into a boat anchor.

2) What was the plan to get John Morton back on the track?
Get an engine, put it in the car, put John Morton in the car, and put the car on track. Simple enough, except finding an engine that could perform was the challenge.

As word spread through the paddock that John Morton needed an engine, the Datsun Community banded together, and offers of engines came swarming in.  Multiple race engines and high performance street engines were all up for grabs. All were seriously built engines, but none of them felt right.

Rob’s ultimate plan to excavate a couple E.B. Parkinson motors, like dinosaur fossils, was crazy to say the least. But, going with his gut, the resurrection of a true vintage race engine was put in motion. Half of the crew went with Randy to his storage to look for a replacement motor, while other half, including myself, received the green light from Rob to began the task of removing the expired power plant in anticipation of the Datsun Relics arrival.

3) Technically, what was involved with swapping parts and prepping the 40-yr old parkinson motor?

The old engine came out quickly, as many hands made light work.  It was then tucked away into the back of the trailer, to be disassembled at a later date, as we worked on getting the car ready for its new engine.  Prepping the vehicle was pretty simple, but there were necessary steps and precautions that need to happen to make this a successful transplant.  We only had one shot at this, so nothing was left to chance.

Below, (L): Gary Brizendine and BRE Engine Chief John Caldwell lend a hand and knowledge: Caldwell is confirming the jetting on the 50mm Mikuni carbs.  (R) The original exhaust system from the 1970s is removed from #46. Morton had already blown apart the exhaust tips on the first session!

  

With any catastrophic engine failure, one of the concerns is metal bits getting stuck in the oil cooler and lines. So, first thing is to remove the oil cooler and hoses and flush them out.  Any leftover engine material in the oiling system can destroy a fresh engine in minutes. Luckily, Road Atlanta’s used oil disposal shed also had 2 solvent tanks, which we used to back flush the cooler and clean the lines of any possible debris. While all the reusable pieces were getting cleaned internally, we moved on to cleaning the mess of shrapnel and engine oil that coated the engine bay.  Just as we finished, the oil cooler system came back fresh and clean, and shortly after engines arrived.  We could finally switch gears to the reassembly of the BRE 240Z.

  

The crew brought back two “long block” engines, meaning the cylinder head and engine block had already been assembled. At first look they were identical in every way and definitely appeared to have been sitting for 40 years. Looking closer, we found one of the engines did not have the timing chain installed which led us to use the one that was “more complete.” We put a wrench on the crank bolt and it rotated 720 degrees, smooth as butter. The next task was to take all the undesirable accessories from the old engine. The 40 year old water pump, alternator, flywheel, crank pulley, thermostat housing, oil filter adaptor, and valve cover were all tossed.  We then tackled a quick clean up, removing years of dirt and grim that had built up while sitting. 

  
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