Rommel came to Z Car Garage in 2014 to have work done on his 2013 Nismo 370z. He’s a big car enthusiast with a Camaro ZL1 and Viper ACR and after a few years he reached out to us about his 1971 Datsun 240z.

 

The Z had an EFI setup with Megasquirt and would not start. He made an appointment with us and got the car towed here where we found an ECU failure.  Rob and Mel discussed doing an upgrade to Haltech and fixing all the things wrong with the car from sorting the suspension, better braking and engine bay cleanup.

 

Mel was hesitant to do everything all at once, yet we wanted to avoid future trips back to the shop. Jokingly, Mel said what “I’d really like are some ph44 Mikuni’s.”  Ask and you shall receive as Rob had a set ready to go.  So we cancelled the tow truck and made a plan to go back to vintage.

 

All of the existing EFI parts were removed from the car.  We hooked Mel up with a Harada intake manifold, triple ph44 Mikuni carbs correctly setup for his 2.8 engine, a ZCG heat shield and corrected all fuel system issues:

 

Often utilized on vintage race cars, the fuel lines were plumbed from a junction block on the firewall. Black AN fittings on black fuel lines supply each carb:

 

We think the new triple Mikuni’s look much better than the old setup!

  

The existing fuel pump system (Left) was removed and a cleaner Holley setup installed:

Dyno Tuning

 

Aside from the exhaust header, this is a stock 2.8L engine running Mikuni ph44s.  With timing and A/F adjustments we picked up more power making 150hp/167tq to the wheels:

  

Listen to those triple Mikuni’s sing on the dyno:

Minor Sorting

The rear fenders were cut badly to fit flares, revealing an inner fender gap that would allow air/fuel vapors to entire cabin:

 

We pulled it back, welded the metal and sealed everything up. The exhaust was also rubbing at the rear valance so re-fitted it.

Chassis

   

The chassis was treated to a suspension refresh. We installed lower adjustable control arms and T/C rods from Techno Toy Tuning. T3 finishes the suspension in our signature color and we really appreciate Gabriel and his staff. They make some of the best suspension parts out there for Z cars. Lower control arms replacing OEM parts:

   

Front T/C rods replacing OEM units:

  

ZCG Big-Brakes and CV Axles

We installed our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles!

     

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:

 

We went ahead got Mel dialed in with the ZCG big-brake kit for small wheels with parking brake and a new master cylinder. More pics in the gallery!

  

Front brake installation:

  

The ZCG brakes fit under the 15×9 Atara Racing wheels:

 

At the rear, the existing old-school disc setup was 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 70 CV axle kits on customer cars and we are stoked with all of the positive feedback.

   

The differential area was a mess on Mel’s Z. We corrected the side-flange issues with his R200 and installed our CV axles. Stock half shafts (L) and ZCG units:

 

 

Vintage is Best!

Once running we performed a full alignment and dialed in the brakes. Mel’s initial feedback on the car made us happy:

“Well, I’m very happy how my car turned out after picking it up from ZCG. Hearing my baby runs on old school NA triple carbs is very heart warming, the ZCG Big-Brake kit is amazing, the CV axles are beefy and the suspension tweaks made a lot of difference on handling. I can’t thank Rob enough for what he did to my Z. It feels like a totally different car now (in a good way) compared to when I drop it off. Job well done ZCG! Thank you for taking care of my 240Z ZCG. 👍👏🙏”

 

This was a very rewarding project and we are excited to see Mel’s Z evolve into a well-rounded sports car. He’s already thinking about his next upgrade…a 3.0 or 3.2L motor. Thanks for bringing your Z to us Mel! More pictures in the gallery below.

Long Live The Z!
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Frank B is no stranger to Z Car Garage having been a customer for more than a decade. Since 2006, we helped build his Fuelie Z, a modified 1972 S30 with ZCG Big-Brakes and CV Axles, 231whp fuel-injected L-series and 6-speed Nissan 350z transmission:

 

To accompany his hot rod Z, Frank searched for an early S30 project for a stock-style restoration. Before the Z car craze caught on with S30’s fetching big money (ie Bring a Trailer), Frank found an unmolested early Series 1 240z (11/69 production: HLS30 00486, Original Engine: L24-2189):

“For SN 486, a friend found it on Craigslist and sent me an email. I actually got it for a good price. What I found when I went to inspect the car was a well worn early z with all but one of the original badges, no real rust other than under battery tray, and some spare parts including a perfect dash, stroker crank, spare transmission, set of period 2-piece wheels… A nice project kit somebody had lost interest in and left behind. I arranged to store with the seller for a month while I got myself ready to start the project.”

 

Restoring the “Original Z”

Frank is a very capable man, and jumped right into the disassembly with a plan to perform a total ground-up restoration himself.

“I immediately pressure washed off gunk and started taking things apart. I also ordered a rotisserie, fabricated mounts to attach at the bumpers, and removed everything that wasn’t welded to the unibody. I was pretty careful to bag up assemblies and keep fasteners with the parts they belonged to… lots of detailed work and hundreds of baggies later, I was ready to start restoring stuff!”

 

Frank connected with several folks in the Z Car community he had met through the years to source parts for the restoration:

“Les Cannaday was able to get reportedly the last of the butterscotch interiors (vinyl bits) made for the Z restoration program Nissan had done.  I had Patrick Shank (Patrick Restorations) completely go through all gauges, main and other wiring harnesses, and acquired the correct radio for that car (some other electrical bits too). Norm Murphy got all of the plating business and had or helped me find some hard to find items like a NOS cover for the wiper motor, a new double lever choke/throttle assembly, a pair of the early taillights, etc.” 

 

The stripped body and all associated body parts went to Andy Schenk for painting while on the rotisserie…Frank was also able to get a complete set of stainless brake and fuel lines made to the original pattern, greatly simplifying restoration of these systems.

“Once the bottom was done, I took the car off the rotisserie and put it back on it newly restored suspension and the restoration of the inside began (other than the headliner which I also installed while on rotisserie while car was upside-down). The detailed assembly of the car took a couple of years total since I prioritized getting the car right over getting it done…”

 

The end result of Frank’s efforts was an outstanding restoration. You can see more in-progress pictures in the gallery.

Finishing Touches With Z Car Garage

At the very end of his restoration, Frank realized for that last 10% it was time to call up his friends at Z Car Garage. He brought his freshly restored, low-vin S30 in for us to sort out all the little things.

 

He had an early transmission that was making noise so we replaced it with another unit fro our supply. We replaced his lower control arm and moustache bar bushings. The entire underside of the car was nut and bolted, and his work was double-checked. A ZCG exhaust was also installed.

 

Key items in the restoration process were reviewed: verifying brake lines, clutch lines, bleeding the hydraulics, and adjusting the rear brakes.

Dyno Tuning

Frank identified what was needed to make a “Canada” car without the emissions controls of US models.  He restored all of the “smog” stuff so it can stay with the car and be put back on one day if desired… but fully original wasn’t what he had in mind for the drivetrain…

 

The engine went to Dave Rebello for the 2.7l “purist” build: this is the original L24 block stroked (E31 head) so numbers still match while gaining more power. Otherwise stock when you open the hood:

 

We installed a Pertronix ignition, changed the plugs to hotter range, adjusted the valves, set the timing, installed a new alternator and starter and made the wiring at the distributor look OEM. Rob performed a street tune on the dyno yielding 179hp/172tq to the wheels:

 

We also installed an LSD to help get the newfound power to the ground effectively. Next items on the list were electrical issues and interior bits. We got the turn signals operational and replaced the flasher. We went through his interior and got all the missing rivets and cowl clips. Kick panels were installed. The clevis pin in the clutch-pedal assembly was removed, sanded and lubed to eliminate any noise.

 

Time to Enjoy The Ride!

With minor sorting complete we focused on a few aesthetic items like final adjustments of the hood and doors. Frank’s stock wheels  were mounted/balanced, ensuring the “D” hubcaps were secure.  He had lowered the car from stock height with Eibach springs, so we did our trim to the fronts for a nice stance.

 

16×7 Panasports were installed for daily driving:

 

Frank did a fantastic job on this Z:

  

It was great to see Frank driving, here he is on the freeway en route to the ZONC Annual Car Show.

“Three years from when I started the project, I took the car to Rob Fuller to help me bring it back to life… after a couple weeks of dealing with somewhat funky carbs and an improperly rebuild transmission, SN 486 was on the road again and, maybe not surprisingly, drove like a new car from the beginning… everything worked as it should and 80mph freeway travel was delightful. We do drive the car… for now it is being kept as perfect as possible for shows. Here’s where it resides in one of my shops in Oregon.”

 

Here is a short video of Frank in his Z and his wife in the Fuelie Z, enjoy!

 

 

The “Original Z”

 

If you are wondering about that license plate… “Ur” is a slang German term for “Original”.

“The first Audi Quattros are referred to as the UrQuattro.  Since the legend of the z includes some design work by Goetz, a German designer reportedly hired by Katayama-san to develop initial concepts, I took the liberty of naming my z the “Original 240z” or UR 240Z for short…  got the same plate in Oregon.”

Frank and his wife retired to Oregon and we miss the enthusiastic couple. It was our pleasure working with Frank and we appreciate  him being a customer and friend of Z Car Garage.

LONG LIVE THE Z!
More pictures in the gallery below
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