Shop Talk for
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Larry Chen’s 1970 Datsun 240Z is featured on the latest episode of Hoonigan Autofocus with, Larry Chen!. Watch Larry and Rob discuss all the changes and upgrades made by Z Car Garage and take it for a spin in this 1-hr long episode:
Long Live The Z!
“My first dream car was 350Z. I learned about Z cars in my college days and I recall a cool kid driving one while I was waiting at a bus stop in the cold rain. We had an opportunity to buy a new car and I was very fortunate that it could be a Z. After purchasing the 370Z, 6 months later went to ZCG and the journey began. No offense to stock Zs but these are meant to be modified 🙂 My wife and I both love our Z and I thank her for supporting my hobby 🙂 “
With only a few months of owner-hip of his new 370s Sport Touring Henry visited us for upgrades. The latest Z34s had ECU changes and no software support at the time. Henry knew he wanted to go forced-induction so in the interim we started bolt-on upgrades. In April of 2019 the chassis was treated to full KWV3 coil-over suspension with SPC F/R control arms and Hotchkis sway bars:
A few installation pictures, followed by a full alignment:
A cat-back exhaust system from Armytrix with Valvetronic sound adjustment:
Henry requested a new steering wheel install:
Stock (with a cover) removed and new carbon fiber + alcantara-trimmed wheel installed:
With 12k miles on the odometer Henry was ready for boost. We ordered the Stillen supercharger kit (black), CARB-legal for piece of mind. Supporting parts included a Concept Z 25-row oil cooler (thermostatically controlled), Stillen transmission cooler and fueling upgrades. Here a few pictures of the installation:
Fueling upgrades include a CJ Motorsports stage 1 fuel return system and billet fuel pump hat, 1300cc Injector Dynamics injectors, Hellcat Wallbro fuel pump, SpecialtyZ flex fuel kit:
The SpecialtyZ flex-fuel kit comes with a Zeitronix gauge that we mounted in pace of the OEM clock:
Cooling upgrades include Soho Motorsports air-to-air intercooler, Concept Z 25-row oil cooler (thermostatically controlled) and Stillen transmission cooler. Also shown is the Fast Intentions crash bar with tow-hook:
Oil and transmission coolers:
We installed a Fast Intentions billet flex-plate, much stronger than the OEM unit:
Finally, we changed the exhaust from Armytrix to an ARK Grip setup paired with ART Pipes from Motordyne:
Henry loves the current exhaust setup:
“I’ve gone through Nismo OEM, Armytrix, and eventually settled with Rob and a friend of mine’s suggestion for the forced induction route: Ark grip catback system + Motordyne art pipes = the deep growl without screaming. Sort of the centered idea of the goals of my Z project – subtle power without drawing attention.”
We wanted the most efficent blower wheel to run ethanol so the V3 SI blower wheel was installed. Ecutek software was used for tuning, MAP-based with omni sensor.
Shown below are dyno graphs from when Henry was NA to 91 octane and E75 tunes on the Vortech. NA, the Z made 316hp/252tq and a 91 octane tune supercharged yielded 501hp/370tq at the wheels:
Rob then tuned the Z on E75 for 573hp/426tq at the wheels:
Enjoy the dyno tuning video!
We are very happy with the results and even more stoked to hear Henry’s feedback on the supercharger and tuning performance:
“The supercharger is very daily usable and power whenever I want! The sc mods put together and tuned by Rob for a 7at Z is able to reach 570+ whp and 430 wtrq and still feel smooth and dramatic at the same time is absolutely beyond my expectation (I followed every ZCG 370Z blog posts and it’s a honor to be one of the highest power 370Z from ZCG, hats off to Rob) And did I mention daily-driveable? Good surprise for me. In addition, Rob has been really patient and knowledgeable for all my questions and requests and late night text regarding my Z. It really felt like we built the car together but it’s all his magic touches! I really appreciate the journey! More to come”
We have said it before: wheels make or break a car. After long discussions with Henry we decided on the Ray’s TE37 Ultra Track Edition II. Finished in Blast Black and sized 19×9.5/10.5 these wheels look perfect on the Z34.
We love the little details Ray’s applied:
“I love my Z and ZCG! Long live the Z! ZCG has been the place to go if you love Z cars, new or classic. Rob and the shop/crew exude passion for Z cars and you immediately know they will take care of your Z and your Z will be among its family. Rob has been great through the journey and worked with “our” Z. I am sure there is more to come for my Z with ZCG!”
You can follow Henry here on Instagram. What’s next for his Z? He’s playing with idea of a body kit but trying to maintain that subtle-aesthetic approach in his build. Stay tuned! Thank you Henry for letting us build your Z. It’s very cool for us as a shop trying to make 50-old cars keep with cars like this. We enjoy playing with the new stuff just as much as the classics. LONG LIVE THE Z! More pictures in the gallery below:
The 2020 Rally From Home South was held October 1 and we had a wonderful driving experience. Hosted by Driving While Awesome, the one-day event brought interesting cars and their drivers sharing a common passion for enjoying the best driving roads in Northern California. We participated with the Z Car Garage 1970 Datsun 240z and this is our report from the day filled with open roads, seemingly endless stretches of curvy mountain passes and good company.
Rob handed me the keys to “Mrs. Butters”, our 1971 Series 1 240z that serves as the shop demo car and I happily obliged to drive. While this S30 deserves its own feature, here are a few details on the build:
Engine: 3.2L L-series with triple Mikuni 44 carbs and ZCG Heat Sheild
Suspension: Full KW coil-over suspension (ZCG-spec)
Brakes: Z Car Garage Big-Brakes
Drivetrain: Nissan CD009a 6-speed, Z Car Garage CV Axles, OS Giken 4.11 LSD
Wheels: 16×7 Panasport with 225/50/16 Toyo Proxes RA1
Interior: Recaro LXF seats
The Z performed admirably without a single problem over the 300+ mile event. This is a testament to thorough rally-prep (thanks ZCG crew) and the wonderfully upgraded suspension/chassis. These modifications offered a great balance of ride compliance and stiffness for the canyons with a seamless transition between rough to smooth surfaces. The ZCG Big-brakes also delivered great feel and zero fade…truly confidence-inspiring. Icing on the cake was the Nissan CD009a 6-speed transmission :
This gearbox completely transforms the driving experience in Butters. Gone are the long throws of the close-ratio ZX 5-speed and any feelings of fragility with high-speed shifting. The 6-speed simply clicks-off shifts with minimal effort and the gear spacing is truly a match made in heaven for the L-Series. More details with full testing (weights/dyno etc.) coming soon. Enjoy this video of Ms. Butters and hear that L-series sing!
With the recent fires and COVID changing how we live, the typical 3-day format of previous DWA rallies (CRR Rewind 2019) was changed to a one-day event. I really enjoyed it and though a single day sounded appealing I did miss the extra driving and mingling of former events. This year the rally was dubbed Rally From Home South, as the start was very close to the South Bay Area. I joined fellow enthusiast Geoff W in his 1972 BMW 2002 Monday morning to blast down to the starting point in San Juan Bautista, CA.
The mini-cars and coffee of rally participants was full of wicked metal, both old and new. The DWA organizers encouraged us that this isn’t a race, and to enjoy the roads at our own pace. I can’t emphasize enough how great this group of folks is. A good portion are DWA-veteran rally drivers and the positivity was contagious. We were the only Datsun/Nissan represented!
Geoff and I grabbed our swag bags and rally maps and hopped into our cars heading South through HWY 25. A few brief stops along the way, at Condon Peak (Ron’s S2000) and oil fields in Coalinga:
The next stages leaving King City were a mix of long sweepers with a few technical sections. Despite the smoky sky and blistering heat we made it to the Green Bridge. Here, Geoff and I took a nice break under some trees. Soon we were joined by Naveed, Brendan, Marcelo and a few others!
This was my favorite stretch of road on the rally. We enjoyed it so much that we turned around and drove it again, while capturing some video of the cars in action. While Geoff and I were putting in work wrestling our vintage cars, Naveed was comfortably living the dream in the Porsche GT3RS from Abrahim of StealthLabs:
It is difficult to describe the driving experience through photos, so please enjoy this video I made!
Geoff and I switched cars for a bit. I was really impressed with the 2002’s handling, it’s a gem. The rare Camapagnolo wheels also look incredible with the sticky CR65 tires. We arrived at the entrance to Laguna Seca and it was another car show representing a great feature of DWA rallies: diversity. So many cool cars from all era’s and marques! This was a fun time chatting with fellow rally’ers
Our final stop was a relaxed gathering at Fort Ord under a filtered sunset. A great way to end a day of driving. More picture in the gallery!
Rally From Home South was a surreal experience. I am still day dreaming about the incredible stretches of roads that we travelled all in one day. For what seems like a brief moment in time we were transported to another world with changing landscapes, smells, sights and sounds. Big thanks to the crew at Driving While Awesome and old/new friends met during the rally. We are definitely signing up for the next event! Enjoy the picture gallery below and LONG LIVE THE Z!
Kurt W is a Nissan enthusiast having owned a 350z that we worked on back in 2008. Last year he acquired this (KH2) R32 Skyline GT-R from our friend Sean Morris and his team at Toprank International Vehicle Importers. It goes without saying, if you are in the market for a vintage Skyline (or any JDM car) IVI is the place to go.
Kurt visited Z Car Garage for minor sorting and a series of upgrades we will document in a future blog post. Recently he came in for installation of 17″ VOLK TE37V wheels with Bridgestone RE-71R tires:
The wheels frame the Stoptech Big-Brake kit( 332mm front and 328mm rear) nicely. Love the dish on these!
Kurt also called us about lowering his Tesla Model 3 and for the first time an electric vehicle came to ZCG for modifications. A full KW coil-over suspension setup from MountainPass Performance was installed:
The Model 3 received a full alignment. Note the weight/distribution!
Kurt’s R32 will be back at the shop for some exciting power upgrades stay tuned for a full report!
Eric Straw is a long time friend of the shop and hails from Oregon. Last year he visited Z Car Garage on the way down to the JCCS show where he debuted his latest masterpiece, this 1984 Nissan Skyline RS-X. Most Americans are familiar with the classic 70’s Skylines and later GT-R series, but this 6th generation (R30) chassis remains unknown unless you are a JDM-nerd. In Japan the R30 sold well and had a great following with Nissan enlisting the famous actor/racer Paul Newman to appear in ad campaigns. The R30 also formed the basis for the insanely cool SuperSilhouette race car:
The details of Eric’s R30 are endless. I don’t want to reveal too much as it deserves a major media feature first. It would be easy to write thousands, if not ten thousand words about the character, the touches, and the simple uniqueness that make the “Straw30” one of a kind. Where I fall short of storytelling, I hope photos suffice.
To get an appreciation of Eric’s talent as a fabricator and his build aesthetic take a quick look at his other Datsuns, a 1969 Datsun Roadster and 1971 Datsun 510:
Both deserve their own feature but can you see a theme starting to build here? Eric has a penchant for white paint and red valve covers…and turbocharged Nissan powerplants!
It all started with an ad spotted on our good friend’s site, Bring A Trailer for a 1984 Skyline without an engine. This appeared to be the perfect specimen with the distinctive Tekkamen or “Iron Mask” front end compared to pre-facelift models with a conventional grille. Fellow Datsun enthusiast/restorer Michael Spreadbury of Spriso Motorsports joined Eric on the trek to Washington to pick up the R30.
As with most of these vintage Japanese cars, rust was a hidden issue as Eric discovered:
“When I first saw the car I wanted to make a really fun driver with lots of power and for sure RB powered. I didn’t plan on restoring the body when I bought it. After digging in, it was obvious I had to do a complete restoration as there was a lot of rust.”
What begun as an engine swap turned into a full blown bare metal restoration. Eric’s work simply goes beyond an OEM restoration. There are so many areas of custom fabrication throughout the chassis. We simply have not seen this level of care and love executed on an R30. Here is Eric putting in work:
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