This 1973 Datsun 240z has been in owner Erich C’s family since new. He is also a good friend of fellow Z-car racer Glenn and both enjoy carving through the winding back roads of the Bay Area. Erich decided to finally restore his S30 and placed it in the capable hands of racer and Datsun guru Troy Ermish. Fresh from a restoration at his shop the Z had plenty of hot rod parts including a Rebello 3L with triple Mikuni carbs:

  

Erich came to Z Car Garage for inspection services and sorting before entering the car in the fabled Coastal Range Rally held on Feb. 22. His Z came to us at a great time with plenty of familiar company in the shop:

 

On the short list of items needing attention: clutch hydraulics, brake booster issue, wiring issues, speedometer not working, exhaust leaks, engine oil leak and transmission leak.

 

We addressed the clutch hydraulics by replacing the clutch M/C and re-drilling the clutch slave cylinder mounting holes. The system was bled and we adjusted everything to ensure the clutch pedal worked beautifully. The brake booster was also adjusted to allow full travel and full pressure with pedal application:

   

Next, we diagnosed a leak at the bellhousing. First, we removed the transmission and confirmed that the clutch/flywheel surfaces were dry and unaffected:

   

The source of the leak was from the transmission’s front seal:

  

We separated the transmission to replace the seal:

  

Bellhousing cleaned and front cover assembled:

 

The reverse switch was not operable. On the KA24 transmission conversion the reverse gear switch is located about 22mm further back on the F4W71B than on the FS5W71B or C. While the transmission was out we relocated the reverse switch and it now functions:

   

Let’s take a brief pause for this beauty:

 

A few wiring issues were diagnosed like the the brake lights: we found a broken wire at the pedal switch, removed all the bolts cleaned up the connections and replaced the switch with a NOS Nissan part. Brake lights work now!

  

The speedometer was not functioning so we replaced the speedo cable assembly with some ZCG stock. We also traced wiring from the tachometer to engine bay and got it working. Tach and speedo now operable!

 

Moving towards the rear of the Z, look how ultra-clean it is!

 

What may not be apparent from the photo above is the exhaust was hitting the diff, so we clearanced it:

 

The differential “fill” bolt with was replaced with the correct square plug:

 

On high power Z’s like Erich’s the diff fluid can overflow out of the vent, so we add a little hose here:

  

There was an oil leak at the oil pump so this part was replaced, no more leaks:

  
Erich’s excellent choice of RS Watanabe wheels really complete the look for this car.

 

The combination of 15×8 wheels with 225/50/15 Toyo R888 tires was rubbing badly on the rear fender lips:

 

We rolled the lips and confirmed no rubbing:

    

Before tuning the car we identified and fixed exhaust leaks at the header flange and collectors:

 

Fresh spark plugs, an O2 sensor and we were ready for some dyno time.

  

After we corrected some jetting issues Erich’s S30 made a stout 261hp/234tq to the wheels!

 

Erich’s S30 left Z Car Garage just in time to participate in the Coast Range Rally and we are happy to report that he completed it!

 

We are proud of Troy and his restoration of this Z. It is also great to see Erich out Enjoying The Ride where these cars are meant to be. Thank you Erich and Troy for letting us work on this canyon carver. Stay tuned as Erich made another appointment with us to replace his Wilwood brakes with…our ZCG Big Brake Kit!

LONG LIVE THE Z!

Enjoy more pictures in the gallery below

 

 

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Raymond L purchased a few bolt-ons and he needed them installed correctly on his Infiniti Q50 Hybrid. This is the first Q50 Hybrid we have worked on so we were excited. We installed a new front sway bar and cat-back exhaust, both from Stillen.

OEM vs Stillen sway bar:

 

OEM vs Stillen exhaust system:

 

A few more detail shots of the exhaust:

    

The front sway bar and Stillen exhaust made welcome improvements!

On Sunday we Enjoyed The Ride with several Datsuns on a local Fun Run organized by fresh Z car owner, Naveed Y. I drove my 1967.5 Datsun Roadster:

 

Rob drove his Datsun 510:

 

Lou drove his 1970 Series 1 240z:

 

Ty and Christine also joined us in their 991 Porsche:

 

Naveed has a cool collection of sports cars including an Nissan R32 Skyline and recently acquired this Fairlady Z:

He has been driving this S30 religiously and organized the day’s fun run, starting in Cupertino and heading up HWY 9. It was a gorgeous day to be driving Datsuns!

  

We stopped at a vista point just after the 9/35 junction and headed to Alice’s:

 

From Alice’s we drove down 84 and to the coast via Pescadero Rd. Though foggy it was quite warm and we had fun staging the cars for photos.

Naveed captured some great shots!

   

Naveed’s RHD S30 sported a triple-Mikuni carb’d L20A with a full Fujitsubo exhaust. Stay tuned as we report on the dyno performance of the Fujitsubo exhaust system on our shop S30:

 

Naveed’s Z sounded wonderful echoing off the forest-lined roads. Listen to the exhaust and watch a short sample of the fun run in the video below.

We had a blast, thanks for inviting us Naveed!

Enjoy more pictures from Naveed and us in the gallery below:

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This Cherry Red Pearl 1992 Z32 Twin-Turbo is owned by our customer Kevin B.  Z Car Garage has maintained and modified the Z since Kevin purchased it in 2006 from the original owner. It has an extensive list of exciting upgrades as well as total maintenance records. The Z passed smog, has a clear title and is ready to be enjoyed. More information, a video and pictures can be seen on our For Sale page HERE.

 

Lou S is no stranger to Z Car Garage, having built several cars with us since we opened our doors in 2004. Although the red Z shown above is the focus of this blog post, let’s spend a moment recalling Lou’s 1973 Fairlady Z . You might recognize this RHD Z from local Bay Area fun runs and car shows over the years. What started out as a fairly stock car evolved into a canyon-carving street machine as we began modifications in 2011:

 

The Z featured a 250whp Rebello 3.2L engine, 240sx KA24 5-speed, Recaro seats, LSD, full-suspension, our ZCG Big-Brake Kit and Panasport C8 wheels.

   

Enjoy this short video showing the mellifluous sounds coming from the 3.2 engine:

 

The pretty triple Weber carb setup on the 3.2L was pictured on SpeedHunters and the Z was a feature car in JNC’s booth at the highly-successful Bayline show:

  

Enter The Monte Carlo

Lou enjoyed his Fairlady Z for many years and after ZCG’s 2nd SEMA build in 2016, Lou was inspired to take his car to the next level.  The 3.2L drivetrain was sold to our customer Tim Ng to be used in his ’72 S30 build. We are currently building an IMSA-flared body Fairlady Z featuring wider Panasport C8 wheels and a stroker RB engine backed by either a close-ratio 5-Speed or 6-speed.

 

While Lou’s Fairlady Z was being torn down, Rob had been daily-driving his Monte Carlo Red (#905) 1970 Series 1 S30. Rob had this car for a few years and every time Lou saw it he would hound Rob to sell it to him. Here is the low vin (6143) S30 back when Rob acquired it, before a cut and buff, stock hubcaps and refreshening:

   

Lou finally acquired Monte Carlo from Rob.  While the Fairlady Z sat in storage Lou was driving around in the bone-stock Monte Carlo. We thought, why not take the pieces in storage and upgrade Monte Carlo?  ZCG went to work and transferred all of the suspension, wheel/tires and Big-Brakes from the Fairlady Z to Monte Carlo:

 

Z Car Garage Big-Brakes

Lou has our ZCG Big-Brake kit. Not to be confused with our current Z Car Garage Big-Brakes (for small wheels), this Big-Brake kit was our initial setup from over a decade ago. This 328mm sized kit requires 17″ diameter wheels and the massive ST-42 calipers are finished in bright red. We actually did all the R&D in-house for this setup…using a 280ZX master cylinder and our own mounting brackets. Full suspension (Coil-overs) and ZCG Big-Brakes F/R replace OEM parts:

   

Another look at those massive ZCG Big-Brakes!

 

The 280z 2.8L engine received a 5-speed transmission with new clutch/flywheel.

 

5-speed transmission fitment required trimming the shifter area as early cars came with 4-speeds:

 

While the Z was on the lift we also addressed a few engine bay items like a new brake booster:

 

The interior also got attention with nicer, complete seats from our parts supply. The original seats were badly torn:

  

The resulting transformation is impressive. From a stock, early series 1 Z to a hot rod with killer brakes, suspension and footwork that is familiar to Lou. We know these upgrades to Monte Carlo will keep him Enjoying The Ride while his Fairlady Z gets built.

  

We love Lou’s passion for Z’s and he is a Z car fanatic. Thanks for letting us work on Monte Carlo!

Long Live The Z!

More pictures in the gallery

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