On Sunday I joined 6 other roadsters for a drive in the North Bay. I left San Jose ~7:45am and it was very foggy. On the freeway it was actually quite wet like rain, not a good sign as I thought the weather would be worse heading North.
As I approached San Francisco the fog disappeared, revealing the city Skyline and iconic Golden Gate Bridge. I was excited to see everyone and do some driving.
Meeting point: Fort Baker 9am
I arrived to see 6 roadsters already lined up against the GG Bridge and clear sky. It was really fortunate that weather was amazing….usually this time of year the GG bridge is shrouded in fog!
We chatted for a bit and I consulted with Jerry about staging the cars for quick photoshoot. He’s a talented photographer and you can see his positioning and composition created some spectacular shots.
The cars:
Dan’s 1970 1600. Dan owns three roadsters and this one is completely stock:
Mike’s 1967 2000. This is considered one of the most sought-after models (#0072 out reportedly 1000) sporting a 5-speed transmission, 150hp twin-Mikuni carb 2L engine, 160mph speedo/8krpm tach…all stuff other cars dreamed of in 1967:
Andy’s 1969 1600, looking great on stock wheels and whitewall tires:
Pat’s 1969 1600. Pat has swapped in a 2L/5-speed drivetrain from the 2000 model. Note the factory roll-bar:
Jerry’s 1969 2000. This SRL caught my attention as soon as Jerry started the fire-breathing Solex-carb’d U20. Make sure you watch the video below to hear it rev. Note the pretty Longchamp XR-4 wheels:
Scott’s 1967 1600. I met Scott back in Aprril at the 2019 Solvang Datsun Roadster Show and admired this full frame-off restoration. Stunning paint and a nice interior with carbon fiber touches. Power is from a modified 1600 engine now displacing 2L…powerful! Note the full stainless exhaust (and hear it in the video below!)
We got each owner next to their roadster and a nice group photo. Big thanks to Jerry for the camera work.
Our leader Dano was anxious to get moving to avoid tourist traffic so we rolled out. We were also joined by fellow roadster owners Eric (in his NA Miata) and Will (in his E30 M3). The next 4 hours was a mix of ever-changing scenery that was new to me. From Downtown Sausalito to twisty HWY1, ribbons of road winding through forest and coastline it was fun!
Stop #1: Limatour Beach
Quick stop close to the coastline and back through the forest…
Stop #2: Lunch at Tony’s Seafood Restaurant in Marshall:
After lunch, some parted ways while Dano, Pat, Will and myself headed to Nicasio Reservoir back to 101. Pat and I rode together for a stretch of freeway heading home.
I had a blast driving with everyone, here is a video of the sights and sounds, enjoy!
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!
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
The Z Owners of Northern California (ZONC) hosted their Annual Car Show in Brisbane, CA on July 28, 2018. Attendance was down from last year’s show, but didn’t stop Nissan/Datsun fans from bringing out their rides on a warm Saturday.
This was a relaxed, relatively small gathering of enthusiasts that I joined with my Datsun Roadster. I left San Jose and drove ~40minutes just past SFO to the Brisbane Marina. I stopped for a quick photo op near my office before rolling into the show after 10am:
Highlights from the show
Still to this day, 240Zs are the most represented model in the club. Expansion over time currently includes all recent Z models and the GT-R, but also reaches back in time to include the Datsun Roadsters and 510s. 37 cars were displayed this year, each one of them special and showing pride of ownership. The only models missing from the show was the S130 280zx and GT-R.
From showroom stock to wildly-modified the S30 selection was diverse. This was a wild one: an IMSA-bodied Z!
Two showrooom-stock examples:
Check out the period EMPI split-rim wheels on this Safari Gold S30:
Modified Z’s with trick suspensions, triple side-draft Mikuni’s/Weber’s and modern paint schemes. This Sunshine Yellow Z was the only car sporting fender flares:
A solo 1970 Series1 Z:
260z and 280z
ZCG customer Joe A showed his pretty 260z (full report on the blog soon):
Linda W’s 1978 280z
Winning Best 280z and Best of Show was this ultra-clean fully restored example:
People
We like this show because of the laid-back atmosphere and good folks that organize it. There was a great raffle, awards presentation and having banners for each model was a touch of genius. The banners will be displayed that will be carried on at the Rolex Monterey Motorsports Reunion next month!
Z32
4 Z32 300zx cars were displayed, all in different colors. Joe K and Kevin N’s Z32 Twin Turbos are both top-level examples of highly modified yet tasteful machines.
Old-school Racing Hart wheels house massive Brembo calipers on Kevin’s silver beauty:
Z31
The lone Z31 300zx was a 1984 Anniversary Turbo model!
Z33
Five 350z and 1 Z Roadster were in attendance. It was a pleasure seeing ZCG customer Dan Fulton and his track-prepped 350z:
Z34
6 370z cars including 1 wild NISMO Z:
510s
Three Datsuns 510s showed up, each sporting different powerplants and body styles. The crowd favorite (and winner) was Matt’s 510. This boosted KA24DE Dime also won Best Paint:
Jose’s SR-pwoered 4-door with an S13 SR20DET (note S13.5 valve cover!) 18″ SSR SP3 wheels and Brembo brakes from MArio of TSR:
The last time I saw Jose we both attended the Spocom Show in 2015. Since then he has added many titanium parts to the engine bay from ChasingJ’s and had the SR tuned by our friend Sebastian at SpecialtyZ. It’s now making 410whp!
The RL411 Bluebird
Our customer Kevin M brought his 1967 411 sedan, we will have a full story on this build soon!
Roadsters
This year we had three Datsun Roadsters. My 1967.5 SPL/SR20, Dave Premo’s 1967 2000 and John Baker’s 1969 2000. Dave’s SRL is car #406 finished in Turquoise sporting a full Mikuni-Solex “competition” package and 4:11 rear end. He is also Solex-tuning expert offering Mikuni parts and service:
John Baker’s 69 SRL is a concours-level example with rare parts like a day/night mirror. The diminutive 5.60 bias-ply tires look just right! This roadster was featured in Automobile Magazine with John Morton behind the wheel!
A few more of the cool details. John won Best Roadster!
I had to get some rolling shots of this roadster, it looks so good on the road!
Vanity plates
It’s no secret Z car owners have the best vanity plates! Some notables:
Parking lot finds
The beautiful venue is also a public park so plenty of folks stopped by to check out the Z’s. I spotted two S-chassis rolling through:
See you next year!
Spending the day at the ZONC Annual Car Show was a welcome experience that reminded us to, in the words of the late Mr.K, ” Love cars. Love people. Love Life.” We look forward to the next show keep an eye on our event updates and Z you soon! Don’t forget to check out our picture gallery below. Big thanks to the ZONC organizers!
“Great Drives” is a new Zcarblog series highlighting scenic routes and destinations we have enjoyed from the past and present. Whether it is a nice cruise or thrilling adventure, we hope to inspire Bay Area vintage car owners to Enjoy The Ride! Have a great drive of your own that you want to share? Feel free to contact us on Facebook, Instagram or by e-mail.
Mt. Umunhum, San Jose 7/1/18
Growing up in the Bay Area I have always been fascinated with Mt. Umunhum. Dominating the peak is an 84-foot tall radar tower built to watch over the nation’s airspace during the Cold War. Decommissioned and closed off to the public since 1980, last year this former Air Force station was converted into a place where you can view the Santa Clara Valley from 3,486 feet.
Mount Umunhum is the fourth-highest peak in the Santa Cruz Mountains just south of San Jose and can be reached by the new five-mile Mount Umunhum Road which is off Hicks Road in Los Gatos. The road is freshly paved and filled with a mix of hairpins and blind corners. Elevation gain is impressive with 2000ft+ over 4 miles.
Enjoy this short video of the drive up to Mt. Umunhum:
At the summit we had a 360-degree view from the Pacific to the Sierra Nevada. The sunset was spectacular and I just had to bring my family back again the following day to share the experience.
Though it is only a few miles from our home, the drive to Mt. Umunhum is exhilarating and the summit well worth the climb. If you are driving your vintage car make sure the cooling and braking systems are up to the task!
Interested in the history of Mt. Umunhum? Watch the video below:
Stay tuned for the next Great Drives feature and enjoy more pictures in the gallery below! …[read more]
This 1972 Nissan 240Z-L however is “the list” car for Glenn that started his Datsun passion. Glenn has owned it for several years, enjoying it as a back-road burner on the street and rallye events.
Find out more about the story behind this right-hand-drive survivor over on Petrolicious and also watch this great video:
We’ve known Glenn for many years and we actually tuned his Fairlady back in 2012. The 3L stroker produced one of the highest dyno numbers we had seen!
Big Brakes for Glenn’s S30
The Z clearly had more than enough power, but braking was always something Glenn wanted to improve and once he heard about our latest Big-Brake Kit for small wheels he became a believer after test driving them. Rather than tell you how we feel about this product, let’s hear Glenn’s experience.
Throughout my years of Z car ownership, I have run a variety of brake setups. My Z cars have seen everything from restored OEM Sumitomos, Toyota 4×4’s, trick Wilwood setups, even frankenstein’d Baer calipers. There is no doubt that it has been one area that I have never been completely satisfied with. Over time, after many years and attempts to find the ‘perfect’ setup, I had given up and just settled for what I had.
The most important aspect to me when it comes to braking on a street driven car is feel. Yes, stopping power is extremely important, but also is not that difficult to achieve on an early Z car that is naturally light to begin with. Feel, however, is something that has always managed to escape me. On my vintage 240z race car, we use multiple master cylinders, swap them in and out, fiddle with our brake proportioning valves, fine tuning them to fit our driving style and preference. We are trying to find that “racer’s edge.” In all honesty, when it comes to a street car, I want nothing to do with all that.
Wheel sizing and style was also extremely important to me. I love old school wheels and the sizes they came in. I needed a brake caliper that would fit under my 15” Watanabe RS wheels without having to shave or drastically modify my setup. If it was not for being in love with these wheels, I would have opted for Z Car Garage’s larger big brake kit.
A few words about our latest big-brake kit solution. Our successful, larger ZCG BBK utilizes 328mm rotors and 4-piston calipers requiring a 16″ or 17″ wheel. This kit was made with our friends Tyler and Eric from Stoptech over ten years ago. Recently our customers asked us to make a BBK for smaller wheels so even a guy running 14″ vintage 5-slots slots could brake like a modern sports car. Typical big-brake kits use a 4-piston setup up front and a ZX in back; Proportioning is hard to get right, varying from car to car. We wanted a brake system that suited the car and totally bolted in, no M/C change, no proportioning valve, no booster change.
Working with Stoptech again, we developed this smaller BBK as a direct bolt-in solution for the 1970 to 1978 S30 Z cars. We’ve been with Stoptech since the beginning and love their products. We aim to release this product to the masses once our local installs are completed. Let’s get back to Glenn and hear his initial impressions of the big-brake kit:
Rob informed me he was working up a solution and he wanted me to be test the brake kit. Rob promised three things – they would brake amazing, they would fit under my 15” Watanabes, and they would feel as if they belonged on the car. Did I doubt it at first? Sure, a little. However, I also knew that the fit and finish of all products that came out of ZCG were top notch, and that Rob thoroughly tested all his products against his own standards. Which I’m sure everyone knows, are extremely high.
In preparation for the Monterey Historics last year, I had brought the Z race car to the shop for dyno time. Rob gave me the keys to his Butters Z and said “Go drive it.” Under 14″ wheels sat his brand new ZCG brake kit. I gladly accepted and took the car for a ride.
WOW, what a difference. The feel, modulation, power, sharpness was amazing. Hands down the best brakes I had ever driven on a Z car, and these were on a car with stock suspension, tires and probably cruddy tires! I told Rob, “sign me up!”
Glenn wanted to run the brake kit on his Fairlady and we happily obliged. He had also been gearing up for a road rallye so the braking system would be throughly used. You can see his Z (top left) along with his buddy Erich C’s S30 (top right, also getting a ZCG BBK!):
Then came the day Rob called me up and said they were ready to rock and roll. Lucky for me, I was just about to head out on the 1000-mile Coastal Range Rally! The kit came with beautifully anodized front and rear calipers, hats, rotors, brakes lines, reversible brackets (for early and later Z offsets), and a factory ⅞” master cylinder. Read that again… Yes, a proportioning valve was left out from that list! The brakes were a straight bolt on and ZCG did all the math to get both the master cylinder size and piston sizes correct. We brought the car in for install and within a day the car was ready to rock.
Glenn’s 240z now had 4-wheel disc brakes ready to tackle the street and rallye:
And of course, the brakes fit beautifully under the 15″ Watts. Kane approved, and Glenn was stoked:
I could hardly wait to jump in the seat of the car and take it for a spin. The brakes were now on a car with suspension, tire, power, and a proper alignment. It was everything I had remembered from driving the Butters Z and MORE. The brakes performed flawlessly on the Coastal Range Rally, taking abuse from California’s most challenging roads:
Attention to detail goes a long way. This is exactly what these brakes delivered, and what continues to be delivered by ZCG.
LONG LIVE THE Z!
We are happy to report that Glenn is still braking late and still braking deep all while Enjoy The Ride! You can find him carving through the Santa Cruz Mountains:
Big thanks to Glenn for letting us work on your Fairlady! We also thank Eric and Tyler from Stoptech for supporting us and our precious Z cars!
