Datsun Roadsters hold a special place in our heart and recently we had the opportunity to tune this very beautiful example owned by Pat S. The only reason we don’t work on or build these gems: we simply can’t keep up with our Z car workload. Once in a while though, someone will throw around the name “Alvin” (our shop social media manager) and they will get into Z Car Garage.
Pat contacted ZCG to discuss his 1970 Datsun 2000 roadster’s twin-Mikuni carb setup. The 2L/U20 models could be optioned with dual Mikuni-Solex carbs (replacing SU carbs) as part of a factory “competition” package also including a hotter “B” camshaft and 7.5qt. aluminum oil pan. Pat had done all he could to make it drive nicely and wanted a touch more driveability. Once at the shop, Rob took his car for a ride, impressed with how nicely restored it was.
Dyno Tuning
Rob and Pat discussed his goals and what he wanted to accomplish. We were able to go in and adjust the idle/off-idle settings, and of course wide-open throttle. The U20 put down 113hp/109tq to the wheels:
Pat was really pleased with the dyno tuning results. We actually saw him on the recent BCR Tokyo Calling Rally where he said the car was running fantastic and he was stoked:
“I saw Z Car Garage referenced on 311s.org when I was trying to sort out my carbs. I had the carbs completely rebuilt by Taka Sato at Kyusha House (beautiful job) and Z Car Garage did the fine tune adjustments on the dyno. Starts and runs great. So fun to drive! I once had a good friend that owned a high end Porsche shop (he races Lotus’ now) in LA. No matter who you were, if there was any oil or dirt on the engine, he would send them away. Rob reminds me of him. An expert with a true passion for the cars!”
Enjoy the sounds of a Solex-equipped Datsun 2000 on the dyno below!
Pat shared his Datsun story with us:
“I bought my first roadster in 1973 and it was a ’66 1600 that I paid $600 for. I’ve always wanted to get another so about 3 years ago I purchased my ’70 2L. Mike Young of DatsunSports rebuilt the top end and installed a ‘B’ cam for me and has been a true friend by not letting make too many mistakes.
The car was striped down to bare metal, rusted panels welded in and a new paint job with rechromed the bumpers and trim.
Pat refurbished all of the electrical switches and lights (LEDs now). Gauge expert Jon Frampton refurbished the gauges. Pat also rebuilt the seats and has new upholstery throughout:
Enjoying The Ride
It was great to see Pat driving his roadster on the BCR Tokyo calling rally where he was all smiles with the tuning results. Here a few shots of him at speed in the foothills of Sonoma, CA.
Roadster owners united at the rally’s final stage at Sonoma Raceway (Alvin, Rob, Mike Young, Eric and Pat):
Pat you have done a great job on the roadster. Nice work, and we love seeing Datsun owners realize the maximum potential out of their cars. Thanks for your support and Enjoy The Ride!
We love to see owners installing our Z Car Garage CV Axles on their vintage Nissans and Datsuns. Ray H added a set to his 1971 Skyline that he acquired from our friends at JDM Legends. Ray also visited Z Car Garage for dyno tuning and alignment services which transformed this Hakosuka.
Ray has been a ZCG client for many years. We first saw his Skyline at the 2019 Golden Week Kyusha Festival where I spoke to him about visiting ZCG for some upgrades and tuning.
Fast forward to 2021 and I spotted Ray at the Driving While Awesome gathering. He pleasantly informed me that he was running our ZCG CV Axles (serial # 00356) and we are happy to report that he installed them himself!
“I have been wanting to go with CV’s for a while on my SR 510. I have been following a few suppliers since they first started showing up about 10 years ago. I did notice that people were having problems with them wearing out and also that there were a few redesigns. On my Hako, I desperately needed to a wheel bearing and half shaft u-joint replacement as it was making some awful clunking noises back there. So, when I started seeing your blogs about the CV’s I was immediately interested. Knowing Rob, I knew these had to be good!”
Ray sent us a few installation pictures of the ZCG CV Axles replacing the old CVs and the R180 STI LSD:
“It was just an optimum time to get these when I had my entire rear suspension out for a rebuild and upgrade. The installation was pretty straightforward.” So far all good, I don’t think my modest power has put these to the test but its nice to know something has been well engineered and its one thing I wont have to worry about, not mention they look bitchin!”
For more information on our Z Car Garage CV Axles please read below. Before we share the dyno tuning results, let’s take a look at how Ray found his Skyline…
Datsuns From the Beginning
It is worth noting that Ray is a die-hard Datsun (510) enthusiast with ties to the old Nor-cal 510 club from decades ago. In the groovy group photo above, Ray is in the back row, last 510 on the right! Here it is, his first Datsun 510 circa 1981 (below, left) and same car with flares and a Cartech turbo kit in the FAR Performance parking lot!
Ray shares the story of his Skyline:
“I have always loved the 510, my first car in high school and still own 3 currently. When the internet started to become a regular thing I noticed these awesome looking boxy cars by Nissan sold only over there and I think Europe. I eventually stumbled upon JDM Legends website about 10 years ago and started inquiring about how much they cost and how to get one. Erik at a couple different times offered me a chance to buy one, however timing was just not right for me at the time. Fast forward a few years and Velocity channel (now Motortrend) starts promoting a show with Hakos running around! I instantly got the bug again and thought “these things are going to explode in value, If I don’t get one now I never will”.
Much to my amazement, I got a call within a month. He said “I got a line on a couple in Japan, one sounds exactly what you looking for”. He sent me pictures and I think I agreed to buy it the next day, still remember July 4th, 2018! Took about 3-4 months to get to Long Beach, then immediately to Utah. Once it was in Utah, Erik and Josh went through the whole car so it was a ready to go.”
“I flew out to Utah after he had it for a month to go over additional upgrades. First off, he said this was one of the cleanest, most solid chassis he’d ever brought over! It really goes to show, you get what you pay for. I cant stress enough, pay the money up front, it is so worth it to get a solid car with everything on it! The additional work they performed included, flaring the front and ordering wider Watanabes, modern fuse block conversion, new spoiler upfront, Mauricio did the paint match! I picked up in November of that year and trailered it all the way home.”
Since picking it up from JDM-L, Ray has been driving the Hako frequently. Quick specs:
1971 Nissan 2000 GTX , finished in white as GTR tribute
Engine:
2.8 L series straight six, Late 5 spd transmission, N42 head, Triple Italian Weber 40’s, Headers with Fujitsubo exhast, All original mechanical linkage.
Suspension:
Watanabe 15×9.5 -26 rear 15×8.5 -6 front, Toyo RA1 225/50/15 rear 205/50/15 front, Modified rear crossmember with FotoFab camber/toe brackets (510), QA1 double adj.rear shocks, ZCG CV’s, Subie R180 3.9 LSD, Finned aluminum rear drums, New Nissan bushings, bearings, driveshaft U-joints, brake cylinders, T3 280ZX front strut with coilover and aluminum hubs and Koni yellow adj. struts.
Exterior:
Protec over flares and front spoiler
GTR front grill and badging
Complete chrome trim and new weather strip
Interior:
Power windows, GTR shift knob and emblem, Stock Seats, Nardi steering wheel, Coco mats, Stock radio. All functioning and complete switches and dash.
Ray also has several 510s including a ’72 510 2dr (S15 SR20DET) “SaRafina”, ‘72 510 4dr “Mossy” and ‘69 510 2dr “project Scotty”. Follow Ray and his Datsun adventures on Instagram.
Dyno Tuning
Ray was experiencing some driveability issues and considered changing his triple-Weber induction to triple-Mikuni to resolve it. We suggested bringing it in for Rob to diagnose, tune and also provide alignment services. Before hitting the dyno, Rob and Josh identified the major culprit-the throttle linkage was not allowing wide-open operation.
The throttle-linkage was fixed and Rob was able to dyno tune the L28 with the triple-Webers for best AFR/timing. The results were astounding: baseline was 53hp/83tq and after tuning 162hp/169tq to the wheels!
It’s not unusual to pick up 10-15whp with Rob’s dyno tuning of your vintage car, but Ray gained a whopping 109hp/86tq. After driving the Hako after ZCG tuning/alignment he was ecstatic:
“My experience at ZCG and the dyno – Freakin awesome! Way exceeded my expectations! I’ve already had many people ask me “can he get me in there, I need that”. It’s actually kind of a bummer, that he is so booked up, I’m sure there are many people that would love to get there car in there and unlock some potential! My Hako is so much more driveable now, tracks straight with the alignment and the power gain, amazing! Like I told you, my Solex 44’s are ready, but I just want to enjoy this now for a while.”
Enjoy this video we made of the Skyline in action: dyno passes, in-car testing with Rob and Ray’s first drive/reactions. Volume up!
Evening shots with Ray in amazement after his test drive…
Alignment Services
Z Car Garage offers full alignment services for your late model and vintage car. Ray’s Hako was fully-aligned by our lead technician Josh who has many hours of street and race car setup experience. Caster was optimized here for better steering/stability.
Enjoying The Ride
We were super stoked to see Ray so happy with the Hako and he continues to drive and enjoy it.
“As I get up here in age, it is very important that my collector cars run! I’m no longer interested in endless project cars. Now I just want to get out there and drive! This leads into my praise for JDM Legends, like ZCG they just get it. Erik Bizek, like Rob, has a crazy passion for these vintage cars which I love.”
Thank you for your support Ray, and for letting us be a part of your Hakosuka. We look forward to working with you again and seeing you on the road!
We have many more photos in the gallery and please read below for more information on our ZCG CV Axles:
ZCG CV Axles
Our Z Car Garage CV Axles help transmit power to the ground and ensure smoother operation compared to your standard half shafts. These are 100% bolt-in replacing your half-shafts and does not use aluminum adapters commonly found in aftermarket units. We have over 200+ CV axle kits on customer cars and we are stoked with all of the positive feedback.
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!
Enjoy this video made by our client Hazel. She installed our ZCG CV Axles on her Hazel’s 1970 Datsun 240Z
Over 150 sets of our ZCG CV Axles are installed in client’s cars all over the world:
Happy 3/11 day to all Datsun Roadster owners across the globe! Give your Fairlady a hug and get out and drive! Here are a few memorable roadsters that have been at Z Car Garage over the years. Of course, Eric Straw’s SR20VET-powered beauty is high on our list:
Rob and myself have been Enjoying The Ride in our roadsters. His 1967 Datsun 2000 and my 1967.5 SPL:
The 2020 Solvang Datsun Roadster Classic will be held on April 24-25 in Solvang, CA. Now in its 33rd year, this event continues a tradition of uniting owners from all parts of the world in a little town just outside of Santa Barbara. There is something for everyone here: shopping, food, wine-tasting, outdoor activities, and in the last weekend of April an epic gathering of Datsuns! We are only two months away from the big show so prep your cars and book those hotels!
Come check out roadsters and other vintage Datsuns April 24-25. Reminder: ALL DATSUNS are welcome! There are even award categories for non-roadsters. For registration and show info please go HERE.
To catch a glimpse of the show check out Last Year’s Show Report and movie( By Michael Anderson) below. Admission is free to the general public, see you in Solvang!
We are happy to report a Best In Class win for this 1967 Datsun 2000 at the 2020 Boca Raton Concours D’Elegance in Florida. Typically reserved for European and American marques, Concours events rarely accept Japanese classics to enter and compete on the same field, let alone a Datsun.
Acquired by noted marque expert Mike Young several years ago, owner Steve Tetreault took it upon himself to bring the rare Datsun 2000 roadster to concours-level status. Steve recalls how his Datsun was even considered for the event:
“After hearing about the Boca Concours in April of 2019- I decided to submit an application for the Datsun. I soon realized the category that I would be in was named “European Class Sports car” ’65-’75. I completed the application and submitted photos as required in June 2019 and asked the question, “Where does a Japanese car fit here?” In October of that year I received an email requesting more information about the significance of the car, and a few other questions, including more detailed photos”
Steve soon received an email from the nominating committee that he was in fact in the Concours! The class name had been revised to: “Foreign Sports Late” 1965-1975. He was in good company as well: *1966 Lamborghini superleggero *1965 Porsche 356 cabriolet *1967 Jaguar XKE *1974 Alfa Romeo Montreal *1971 Mercedes 280SL pagoda *1970 Ford Capri Perana *1967 Datsun 2000 Sports
Steve describes his Concours experience:
“The 3 very astute judges asked to be left alone while they surveyed the exterior- top up windows up. They asked to see the engine room , open the doors and to explain the significance of the car and why I am showing it. I explained the rarity of a half year car, and that this car is #455 out 750 produced with factory options of 5 speed trans, Mikuni/Solex carbs, B cam, 7 quart finned oil pan, 4 bolt windscreen, and then referenced John Baker’s race credentials for Nissan. I completed the conversation with my true mission: To elevate the Datsun Marque and its ability to compete equally in any Concours D Elegance class such as the one I’m in.”
To be considered for a Concours and then go on to WIN best in class amongst impressive peers is an incredible achievement for Steve. All Datsun owners can share and benefit from this breakthrough as well: it’s a sign that our cars are being taken seriously and command respect. So kudos to your efforts Steve. We remember seeing your roadster at the Solvang Shows and now it is a superb ambassador! Here is SRL-0455 after a 6-month restoration by Steve, sporting vintage Enkei Comp 8 wheels, #665 Paint and fresh chrome:
Old photos I snapped from Solvang:
Speaking of Datsun Roadsters, this a good time to remind you about the big Solvang show coming up April 25th. I’ll post a flyer shortly.
