Dear Zcarblog readers, it’s been a busy year and we are catching up on blog posts, so please enjoy our belated race report from November 2021.

WE LOVE RACING! On November 11-14 we attended the Velocity Invitational at Weathertech Raceway Laguna Seca. Z Car Garage had a blast racing and supporting several client’s IMSA GTU Z cars running in Group 7A (1966-1977 IMSA GT). This vintage racing event was just as fun for spectators with a friendly, immersive vibe. Enjoy our report from the weekend with photos and in-car video of the action.

 

Z Car Garage IMSA Race Car Support!

 

If you missed our earlier post, we prepared and supported three IMSA race cars for the Velocity Invitational (VI). Here’s a quick review:

#49 IMSA Joel Anderson GTU Z

Rob Fuller in the #49 Joel Anderson IMSA GTU Datsun 240Z:

 

#47 Brad Frisselle IMSA GTU Z

We supported our client Randy Jaffe who recently acquired the Transcendental Racing Datsun 240Z. This famous 1976 IMSA-GTU Championship-winning 240z will be driven by ex-driver Brad Frisselle’s son, Brian Frisselle. Randy recently had the Z re-painted by William with correct graphics and hand-applied livery by the Real Ralph.

  

#93 Different Drummer Racing Datsun 260Z

Race car driver, restorer and Datsun Historian Glenn Chiou raced his  Ex-Greg Sorrentino IMSA 260Z. Glenn built and prepared this race car by himself, ZCG simply dyno-tuned it prior to race week.

  

Ready for some L-series music from these historic race cars on the dyno? Check out the video below and turn those speakers up!

 

We also prepared our client Kelvin Tse’s Porsche 911 RSR, because if it’s not the Z-car, it’s the P-car!

 

Epic Racing With Group 7

 Group 7’s IMSA GT and FIA race cars (1966 and 1977) was dominated by big-power Porsche 911 RSRs with a few BMS CSLs and 4 S30 Datsuns. Speaking of powerful Porsche’s, the organizers did not allow turbocharged cars to run so we thought an NA motor race would make things interesting. Read more about Group 7 here with driver Jeff Francis in Larry Oka’s 1970 Ex-Glemik IMSA Datsun 240Z (#54):

 

Friday’s qualifying race was eventful. Rob and Brian Frisselle were doing well and putting down some great lap times. Unfortunately, a Porsche oiled down the track between turns 4 and 5 and both Z cars skidded off the track. They recovered under their own power but the Frisselle Z sustained minor body damage from hitting the tire barrier. Good news: Glenn, Jeff and John Murray avoided the mess and Rob Fuller qualified on Pole Position!

Racing in to the Night

 

Saturday’s Group 7 would start at dusk, a rare exhibition for both drivers and spectators. I zipped up to my favorite vantage point at Turn 6 to catch the sunset. Auxillary lights were placed at each apex and few cars had headlights of their own to navigate the evening’s race. It was magical to watch. Here is Rob Fuller re-capping his sessions from the #49 Joel Anderson IMSA GTU 240Z:

 

“We had a great first session, made some adjustments to the cars and clicked-off good times. The qualifier was pretty scary as I lost control from a Porsche’s oil spill but I made it out ok. Brian Frisselle is an ex-IMSA professional driver and he safely negotiated the oil slick, avoiding a potentially severe impact with the sitting Porsche and softly hitting the tire barrier. I was surprised to make Pole-Position. Saturday’s evening race was intense. Though I started on Pole, by Turn 2 the Porsche gapped me 3-4 car lengths…

…We were racing our Datsuns with skilled drivers like Ned Bacon, Alan Terpins, and Martin Lauber in their multi-million $ Porsches. I was able to hold on to 2nd place, trying hard to reel Ned in but caution struck again, another Porsche had oiled down the track between Turn 5-6. Now its really dark and I’m trying to stay with Ned then I see these lights coming up hard on me and I know it’s Terpins. Tried to defend but he got around me. Honored to be amongst these guys who never let up. We finished the race in 3rd place.”

Enjoy this video we made highlighting the Group 7 races with in-car, Turn 6 and Goodwood livestream footage mixed in. Volume up!

You can see full, in-car footage from Rob in  the#49 Joel Anderson IMSA 240Z over on his YouTube Channel, check out the Qualifying and Saturday Evening sessions. Here is Rob recapping the Sunday race from Group 7:

“Final race was midday with plenty of sunshine. Frisselle started 4th. Three lead Porsches took off,  while Brian and I battled for P4. He then got around me and we both enjoyed the magic of driving our IMSA cars. Drivers around me were in expensive machines giving it 100%. Really happy to see 4 Datsuns in top 10 places. Honorable mention to John Murray (narrow body 260Z), Glenn Chiou did a really good job (Greg Sorrentino IMSA 260Z) and Jeff Francis (Ex-Glenn Klemik IMSA Z).“

 

Joel Would Be Proud

  

You might recall the story behind this special, 1972 IMSA GTU 240z as it was owned, built and raced in the 70’s by none other than Joel Anderson.  ZCG restored #49 back to its former glory and it debuted at RMMR 2014. John Morton would drive #49 at RMMR 2015. Rob Fuller would drive #49 for the first time at the RMMR 2018. Joel was present at all of those events but sadly passed away March 2021 and we miss him dearly.

“This was unbelievable…driving the Z without Joel around was so emotional. Thinking about the fact that all of the vintage race support and seat time we have is all because we met Joel. He taught us how to be racers. His memory was shared by us all at the race.”

 

Privateer Spirit

Our friend and Datsun Historian Glenn Chiou raced his Ex-Greg Sorrentino IMSA 260Z. It’s worth noting that not unlike privateers of the period, Glenn builds his Z cars, maintains and manages his racing efforts himself. Not an easy task so we applaud his work ethic.

 

A Fan-Friendly Race Event

Formerly known as the Sonoma Speed Festival (2019), the Velocity Invitational re-imagined the vintage race experience with a Goodwood-inspired vibe. One of the best experiences for spectators is the paddock and organizers made access to drivers and their machines seamless. Fans could get up close and personal with race cars without the typical ropes or 45-foot RVs in the way. It was a dream come true for me to share vintage racing with my family, they loved it!

 

The hot pit area where all run groups stage before heading out to the track is an amazing place to be. Typically, access is only granted to pit crews and media. At the Velocity Invitational however, organizers staged a “false grid” where any spectator could walk amongst the race cars. Our family loved the artificial turf and hay bale seating lining the grid:

 

Though the fresh format was immediately enjoyable for spectators, it did come as a surprise to drivers and race teams. Rob’s initial reaction was met with eventual praise:

“Upon arrival to ‘Seca we knew this was going to be a different kind of event. All race cars were displayed together under white tents in the paddock for a Goodwood-like experience. It allowed spectators to see all cars within each race group but it was challenging for the team as our tools and support vehicles are usually near us. Initially we were intimidated but got the hang of it with just our essentials.  The layout encouraged interaction and it was super fun to meet other racers, new folks and see old friends. Kudos to the organizers for doing something new and absolutely knocking it out of the park!”

Enjoy this video we made showcasing the sights and sounds of the Velocity Invitational. Rob Fuller gets interviewed by the Goodwood Livestream just before the evening race, and I included the lineup from my favorite vintage race group (other than IMSA), the Trans Am cars!

 

If you want to see action from the event in its entirety, check out Goodwood’s live streaming coverage Day one and Day Two.

 

Paddock Finds

At each corner there was something special in the paddock to see like exotics, Muscle Cars, personal sports cars and even Ragtime racers. The paddock never disappoints. Here’s a few of my favorites, more in the gallery! Where else can you see a brace of McLaren Speedtails, Lamborghini Mirua, Mercedes Benz 300 SLR and Lotus Cortina in one place!

 

Exotics abound with Bugatti and McLaren hypercars:

 

Really excited to spot this Datsun 240Z in the car corral…it is Z Car Garage client Matt K. Full report soon on this pretty Z car that features our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles!

 

We have more photos in the gallery below. ZCG would like to thank the following photographers for sending us photos from the event, you can click on their name to see their photo albums or Instagram handles: Kristina Cilia, Larry Chen, Pall Kornmayer, Todd Lapin, PnutProductions and Paul and Ann Devor, enjoy!

ZCG Race Crew

 

Huge shoutout to the Z Car Garage race crew including the Corwins, Meghan, Nick and Josh. We are grateful for your support, keeping us safe and on the track!

RADWOOD

The weekend of racing also included the popular RADWOOD car show. On Saturday and Sunday they are took over the famous island in the center of all the action at Weathertech Raceway Laguna Seca with a curated display of 50 of the most iconic, unique, and RADical rides of the era. Check out ZCG client Pall Kornmayer’s coverage in his photo album HERE:

 

People

 

We enjoyed spending time with friends and meeting new folks. The Velocity Invitational really helped create such a friendly atmosphere. Below: Larry Chen, Randy Jaffe with Brian Frisselle.  Rob, Anna, Randy Jaffe, Brian Frisselle and his Dad Brad Frisselle. Brad is the original builder/racer of the Transcendental Racing IMSA GTU 240z!

 

Racing Legend John Morton and Sylvia Wilkinson were both present and having a blast. Yes, that’s Jim Froula of Racecraft photo-bombing us in back:

 

Meghan sporting the #49 Joel Anderson IMSA GTU livery shirt. More pictures in the gallery below!

Racing into 2022!

 

Z Car Garage is amped for this year’s race season. Here is list of events we will be attending. Please join us!

April

4/1-3  Sonoma with CSRG

4/21-24 Laguna with SVRA

4/28-5/2 Sonoma with SVRA

May

5/21-22  Laguna with CSRG

August

8/13-14  Laguna with HSR Pre Reunion ( NOT CONFIRMED)

8/17-20 Laguna  with HSR  Reunion ( NOT CONFIRMED)

October

9/30-10/2 Sonoma with CSRG Charity Challenge

9/13-16 Laguna   VI

November

11/4-6   Thunderhill with CSRG

 

Thank you Velocity Invitational for an incredible event. We look forward to running with you again! LONG LIVE THE Z!

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Happy New Year! Today we kicked off 2022 the right way with a New Year’s drive on a beautiful California day. Our friend Geoff assembled a group of cars and we were pleasantly surprised to see several Z Car Garage clients and friends in attendance! Thank you to everyone that braved the chilly morning temperatures and truly showed that Datsuns Are Driven! Enjoy photos and video from the cruise below.

 

I drove my 1967.5 Datsun Roadster and it was a cool 36F at 8:30am as I hit the freeway for the meeting point in San Jose. It was so good to see familiar faces and cool cars. Geoff briefed the group and we rolled out 16 cars strong heading up HWY 17 to Bear Creek Rd. Let’s take a look at the group:

Jim’s 1971 Datsun 240Z

 

Jim’s 1971 Datsun 240z is now sporting a Rebello 3.2L with triple-Mikuni carbs on a Harada intake, Recaro Specialist seats, CD009a 6-speed transmission, our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles!

 

Dirk’s 1973 Datsun 240Z

 

Dirk’s 1973 Datsun 240z is back on the road with a fresh engine,  Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles and Silvia 6-speed transmission. Full report coming to zcarblog.com

Glenn’s 1972 Nissan Fairlady 240z-L

 

Glenn Chiou drove his RHD Fairlady Z sporting our Z Car Garage Big-Brakes (for small wheels). He is an avid vintage race car driver/restorer and found our brake kit offers incredible brake feel and performance all fitting behind his favorite 15×8 zero offset Watanabe wheel:

 

Vince’s 1973 Datsun 240Z

 

Vince’s 1973 Datsun 240z is Enjoying The Ride with our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles.  He scored this Z from our friends at Bring a Trailer!

Mrs. Butters

 

Rob and Meghan Fuller drove Mrs. Butters, our Series 1 shop 240z. This Series 1 S30 features a 3.2L with triple-Mikuni induction, Z Car Garage Big-Brakes, Z Car Garage CV Axles, ZCG Heat Shield, 6-speed transmission and full KW suspension (releasing soon).

 

Jose’s Z

 

Jose M was happy to join us in his Z. After 8 years, Rob and Jose re-connected at our  2023 Nissan Z Viewing.

 

Felix’ 1996 Nissan 300ZX Twin Turbo

 

Felix joined is in his 1996 Z32TT. This 300 will also get an updated feature on zcarblog.com.

 

Pall’s Nissan Skyline GT-R

 

Pall’s R32 recently visited ZCG for Haltech ECU and dyno tuning.

Datsun 510s

 

We had three Datsun 510s in Wagon, 2-door and 4-door models!

Mark’s 1972 Datsun 510

 

We upgraded Mark’s 510 with our Z Car Garage CV Axles. These CV axles help transmit power to the ground and ensure smoother operation compared to standard half shafts, while eliminating the need for aluminum adapters.  Mark got ZCG VV Axle set #320 and he loves them:

Nick’s Datsun 510 Wagon

 

Z Car Garage’s very own Nick F drove his L-Series powered 510 wagon with SSR mesh wheels.

Dustin’s Datsun 510 4-door

 

We’ve known Dustin and Courtney for many years. Dustin’s 510 4-door runs a KA24DE and sweet Longchamp XR-4 wheels.  Hagerty produced a video featuring the local Bay Area Datsun couple you can see it HERE. Dustin also installed our Z Car Garage CV Axles himself on his 510!

 

Kurt drove his Subaru GC8 with full STi drivetrain. We’ve got more updates on his R32 Skyline GT-R soon! Eric drove his Infiniti FX35 and Henry brought his Stillen Supercharged 370Z. Ben also attended in his 1974 Datsun 260Z.

 

Our fearless leader Geoff in his Lotus 7 and my Datsun Roadster. Also joing us was William in his (964) 911:

 

Enjoying The Ride

 

Bear Creek Rd. up to HWY 9 to the look out was surprisingly traffic-free. At the lookout we could see clear across the Santa Cruz mountains to the coast. A few late-model Porsche’s stopped by.

 

Enjoy this video of the drive and all cars particiapting:

 

 

From the lookout we drove up Skyline (35) and down Alpine Rd. Recent rains have made lush forests:

 

After a short re-group we took 84 up to Alice’s Restaurant and chatted for a bit. It is always busy here and the eye-candy endless. My J-Tin radar was treated to Mark 3 and 4 Supras, S14 240SX, R35 GT-R, MR2 and DC2 Integra:

 

This Model A had a hot-rodded 4-cylinder Flathead. It’s a small world and through Geoff we were introduced to the owner, John B. John races a Jaguar Special with CSRG!

 

Thanks to everyone that came out. We hope you get to the Enjoy The Ride this year, let’s make 2021 amazing. DO IT IN A DATSUN!

More pictures in the gallery below!

 

 

Z Car Garage is proud to bring this record-setting 1970 Datsun 240Z Bonneville Salt Flat car back to life for our client Randy Jaffe. In 1976, a team of Nissan employees set out to break the land speed record for the stock body F/GT class. They built this Z in their spare time, setting a new record at Bonneville of 166.037 mph which stood for almost a decade. A monumental achievement considering they had no factory parts support.

 

Join us as we revive this historically-significant Z from its slumber with chassis and engine work. We will also look at the story behind the Salt Flat program, with an exclusive account from Bonneville crew member and former Nissan Parts Manager Tom O’Connor.

History and Acquisition

 

This Datsun 240z set the F/GT class record of 166.037 mph at Bonneville with Nissan USA field engineer Bob Stockman behind the wheel. The old record of 153 mph was held by a Mercedes 300SL. Datsun actually set several records at Bonneville prior to ’76, starting in 1974 with a B-210 Hatchback (121.8mph, driver Mike Jones) and twice in 1975 with a 280Z 2+2 (164.3 mph, driver Milan Micka) and 164.6 mph with Nissan Competition Department head Tom O’Connor.

 

A team of six Nissan USA employees, working in the Nissan Technical Center, Competition Department and Service Departments built the F/GT 240Z. From left to right: Frank Honsowitz, Matt Bornyasz, Milan Micka, Tom O’Connor, Bob Whitehead and Bob Stockman. O’Connor was responsible for building the engine, Micka worked on the suspension and created the paint scheme and graphics. Bob Whitehead, National Service Manager, was the man who originated the Bonneville idea at Nissan USA in 1974. Check out the period, Nissan Employee Newsletter chronicling the Bonneville efforts (PDF) by clicking on this link.

 

Bonneville-As Remembered by Tom O’Connor

How did they do it? We reached out to Bonneville crew member and driver Tom O’Connor to gain insight. The team volunteered time after-hours to build the cars and successfully run them. Tom was a Nissan Parts Manager and also built all of the Bonneville racing engines…their success depended on his skills/knowledge and we thank Tom for this exclusive, first-hand account of the F/GT record-setting effort.

 

Bonneville 1974, 1975, 1976 – As remembered by Tom O’Connor

“The story of the record breaking 240Z in the F/GT class at Bonneville in 1976 really began in 1974. Bob Whitehead the VP of the Technical Engineering and Service Support, a hot rodder and Bonneville fan, approached the employees in his department with the idea of running a Datsun B210 at Bonneville. Several of the employees including myself were currently SCCA club racers and we were all ecstatic about building and racing cars without having to spend our own money. We would have to work on the project after hours but the Datsun Technical Center facility was at our disposal and somehow Bob hid our expenses in his budget. The B210 went 121.8 MPH capturing the I Production class record.”

 

“After this first trip to Bonneville the team realized that it was harder to go fast at Bonneville than we thought. It’s over four thousand feet elevation, the salt and skinny Bonneville tires makes it difficult to get traction, and you only have two miles to get up to speed before entering the timed third mile. If you can go over 200 MPH on the three mile “short course” you can then use the five mile course for your record run. After considering all of this and looking at what classes the Datsun cars could fit into, we came up with the ambitious plan to return the following year with a 280Z 2+2 that was allowed to run as a production car, not a GT car. The plan was to build two different engines, one that would fit into the G Production class and one that would fit into the F Production class. What made this plan so ambitious was that to make a record run you must qualify one day by running the course in one direction and break the existing record for the class. You then come back the next morning to make the official record breaking attempt. This time you run in both directions, the two runs are averaged thus eliminating any advantage or disadvantage a wind would give a one way run.”

 

“Our problem was the number of days available to make two record attempts. Luck was on our side and the weather was perfect, the car passed technical inspection and we went to work changing the engine so we could be back the following day to make our qualifying run for the second record attempt. I was fortunate enough to be the driver for the F Production record. The car was so stable and you are so far from any objects that the sensation of speed is not there, but I became a big believer in aerodynamics when I turned off the engine at 165 MPH and the car slows to 90 MPH in what seems like a second. I really realized how much power it takes to push the air. The 280Z 2+2 broke both the F and G Production records. 164.6 and 164.3 MPH”

 

As soon as they came home, the team started looking at what they would do in 1976. They realized the 240Z that Datsun had loaned to famous cam grinder Racer Brown in 1972 to break the F/GT class record was sitting in a warehouse. The red paint can still be seen under the current livery.

 

Tom recalls preparing the 1970 “Racer Brown” Z for the F/GT class:

“The engine we had built for the G Production class was also the correct displacement for the F/GT class. We installed a “G” nose, added a few tricks we had learned, put the distinctive stars paint job on the car and went back to Bonneville to claim our fourth record in three years. It was great fun and really showcased how much talent was in the Datsun Technical Center in the mid seventies. Some evenings we could have as many as ten guys working on different systems that required their particular talent. I think that it is telling that three of us on the team went on to careers in motorsports. Frank Honsowetz would became the Nissan Motorsports Manager, Max Jones would spend much of his career at Rousch Racing and then become the Competition Director at Ganassi Racing and yours truly would finish out his career as a Competition Manager at TRD. Bob Whitehead would move on to Subaru where he used the same model of using enthusiast employees to build cars that broke records. It was also great, back in the day, to have many old Bonneville racers be so open and generous with their encouragement and suggestions to a group of 20 year olds entering their world.”

Out of the numerous trophies that Tom and the Bonneville team of Nissan employees earned, this one stands out:

“Alvin, this is it!! The trophy from ’76 hung in my shop for years, I don’t even remember how I ended up with it. The plaque was given to each member of the team by Mr. Katayama. I have given these to Randy so they will stay with the car.”

 

“Of course my immediate plans were to get the car mechanically sound with a new race motor and aesthetically get the car as good as it can be! Not until I got the Z back to my shop did I realize after scrutinizing old photos with placed decals on the car that this was same Z raced at Bonneville by the famous cam grinder RACER BROWN out of Virginia where he set the record of 152+ MPH in an orange paint scheme that was still visible in certain places all of the car. I understand at one point the car was ordered to be crushed by Nissan but the Nissan Parts and Competition Team somehow skirted that issue, added the G-Nose, painted the car and put it back on the Flats in 1976 with the record that held up for 9 years.”

 

Z Car Garage Revival

 

Randy shipped the Z from Georgia to our shop in San Jose, CA where we were tasked with bringing it back from its 44-year slumber. We admired the many details throughout the car, all designed and implemented by that famed team of six Nissan employees. This is probably the lowest mileage (not sold to the public) S30 in existence with about 2300 miles on the chassis. Immediately we noticed how preserved and rust-free the chassis and bodywork was for being a Salt Flat racer.

 

As you may recall, the standard front nose was run in Racer Brown trim: The F/GT team added this prominent “Grande Nose” for improved high-speed aerodynamics:

 

The “G-nose” was a factory-made, 5-piece kit made for the JDM-only Fairlady ZG (HS30-H). Created for Group 4 racing, it became a dealer option so it was common to see the G-nose on JDM and export market S30s. Check out the stock ducting:

 

One might expect a full roll cage for a Z car destined to run 166mph…here the stripped interior houses a simple roll bar with integrated headrest. It gets better as the steering wheel and seats are straight from the uber-rare Fairlady Z432R (shown as reference below)!

 

Keen observers may note that the steering wheel is an “Ura Mach” unit. This leather/aluminum steering wheel was an available option to all S30s from Nissan sports/race, with the stock wheel being wood composite made by Izumi. Though available as optional parts, these seats and steering wheel were removed from a 432R and installed on the F/GT car as delivered from Japan by Nissan!

 

Chassis

With respect to the ultra-low mileage of this chassis and provenance we performed a “sympathetic” refresh to make it road-worthy. The entire suspension was removed and powdercoated, with all hardware re-plated. Before/after shots below with more in the gallery.

 

 

We rebuilt and replaced all factory brake components including new calipers, rear drums/shoes+wheel cylinders, new wheel bearings front and rear:

 

New drum brake components:

 

Freshly powdercoated suspension and undercoated chassis:

 

New tie-rods, rack bushings an engine mounts:

 

The tubes inside the original wheel/tire setup were replaced. We built another set of wheels with Vredstein Classic tires in stock size with Mooneyes covers for display.

 

Engine

 

Randy wanted to proudly display this historic vehicle in his collection, but more importantly (also why we love him), he wanted to drive it so people can see and hear the F/GT in action. The stock L24 wasn’t going to cut it, this Z was getting the Jaffe-treatment with a famous engine to give it some go…

 “John Caldwell had just built us a back up race motor for the 46 Z and it was on an engine stand in my shop so I decided that would go in the Salt Flats Z. The original record setting motor was prepared by Tom O’Connor and his team at Nissan but was long gone. The original 1976 raced motor and the Caldwell motor both L28’s were built almost identical with 44mm Mikunis and very high compression so it would be back similar to its 1976 build. A motor was in the car when I got it but it was a 1973 L24 with flat top carbs and it was not plumbed up – just sitting in the engine bay. There was no question that the car would go immediately to Z Car Garage to receive its heart transplant along with an overall inspection to get the Z road worthy and running strong! Rob went thru the brakes, hydraulics and made sure the car was prepared to drive as if it was going back to Bonneville.”

 

We installed the Caldwell-built backup engine that was prepared for the BRE 240Z from The Mitty. Randy purchased a set of ph44 Mikuni’s from ZCG complete with Harada intake, velocity stacks, linkages and Z Car Garage Heat Shield. We tried to replicate as much as we could in the engine bay from period photos and history told by previous team members:

 

More drivetrain goodies. The exhaust system includes a ceramic-coated header and side/rear exit all painted white. The engine is backed by a low mileage 280zx close-ratio 5-speed from Rob’s stash of parts with a JWT aluminum flywheel ad HD clutch.  Power is sent through an R180 with 4.11 gearset complete with new bearings and hardware:

 

New radiator hoses and cooling system refurbished. Notice the large hole in the driver’s side radiator support? This chassis was fitted with a Nissan race carb inlet ducting kit! The fuel system got some love as well with all new lines and refurbished fuel tank. More detailed photos in the gallery:

 

The fuel pump assembly was updated while remaining faithful to original system. Before/After:

 

We hid the hid the MSD box by building a bracket and running the wiring into the engine bay. Inside the cabin we cleaned up gauges and made everything functional:

 

A Museum Piece that Moves!

 

How does the reborn F/GT Salts Flat Z sound and feel to drive!? Randy loves it:

“With a 13.5+ compression L28 race motor and straight pipes – well it’s music to a motorsports guy. The car has such little mileage and had several tricks added by the Nissan team that it drives amazing and is a total visceral experience!”

Photographer and ZCG client Larry Chen visited us and did an in-depth look at the Z on Hoonigan Autofocus. We made this video below complete with a dyno run, driving on the street and a few clips to give you an idea of the Salt Flat Z experience, enjoy!

 

We asked F/GT team member Tom O’Connor what power the Z made to achieve 160mph+ at Bonneville:

“I don’t remember exactly but it was a little over 300. Frank Honsowetz and I have discussed it and he can’t remember either, but 300 was our goal and I remember we beat it. We also can’t remember what diff ratio we used but I remember spending a lot of time with the gear ratio/tire size speed calculators.”

Rob dyno-tuned the Caldwell-built BRE motor, making 254hp/212tq to the wheels, not far off from the 300hp mark of ’76 while making all the right noises! Don’t forget to watch the dyno run in the video above!

 

Salt Flat Z wins at Amelia Concours!

 

Z Car Garage finished reviving the F/GT Salt Flats car and shipped it back to Randy in Georgia, just in time for the Amelia Island Concours. This event, like many Concours gatherings are heavy on Euro/US entries with little Japanese classic representation. Randy mentioned the Z to the guys at Amelia and they accepted it!

“After that first call to Rob I tracked down Tom O’conner in the LA area and he was thrilled to know that the car may run again and was kind enough to take the winning plaques off of his garage wall that were there since 1976 and shipped them to me! I then was talking to guys at Amelia about the Z and they said immediately – we want the car on the grass in 2021. The event is usually in early March but was pushed out until early May because of the Covid restrictions. Tom O’conner and I spoke several times and he said he would like to attend the Concours with his wife Sharon. This was huge to me to reunite the team leader back in the day with this car!”

 

Indeed, it was great to see Tom reunited with the record-breaking Z he was part of.

 

Rob Fuller was also present, meeting several iconic racing legends like Trevor Harris and Peter Brock. Icing on the cake…Randy Jaffe won two awards!

 

What a sight to see (and hear) the Z on the grass of the Concours. Here is a video showing it in action and revving up to accept the award. Randy also talks a bit about the Z:

 

Thank You!

ZCG thanks Randy for his unwavering support. We love your passion Randy and how you wave the flag for Nissan/Datsun history. The Salt Flat Z is in great hands for the next generation to appreciate. Stay tuned readers as we feature another cool Z from Randy’s collection on zcarblog. LONG LIVE THE Z!

 

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Z Car Garage is excited to collaborate with Datsunworks and develop their brilliant KN20 dual-overhead cam (DOHC) cylinder head designed for the Nissan inline-6 L-Series engine.

 

Datsunworks founder Derek Minetti is the pioneer behind the KN20 DOHC cylinder head. This is a custom (very limited production), 6-cylinder head derived from Honda’s venerable K-series 4-cylinder engine. The KN20 offers superior head flow rates combined with modern valvetrain components to effectively transform your L-series single-overhead cam into a high-revving, dual-overhead cam engine. The power potential is impressive.

Gary’s Datsun 240Z

 

There are ten KN20 heads in the wild with only three installed and currently running in cars. Z Car Garage has two KN20 cylinder heads. This KN20 is serial #SN10 and it has been installed into our long-time client Gary’s Datsun 240Z, affectionately named the “Behemoth”. ZCG is always exploring the boundaries of powertrains and Gary’s Z has seen a few engines including an RB30DET, OS Giken TC24 and now the Datsunworks.

 

Here are few details on the powertrain setup for this Z:

-Rebello 3.1L Engine

-KN20 Cylinder head SN10 (but the performance level goes to 11)

-Induction type: Jenvey ITB EFI with Injector Dynamics injectors

-Engine management: Haltech Elite 750

-Header: Equal-length, custom fabricated by RacecraftNW

-Transmission: Nissan CD009a

-Rear Diff: R180 4.11 OS Giken LSD

 

Pictures of the initial engine installation, with more in the gallery:

 

For further information on the KN20 cylinder head we urge you to visit the Datsunworks blog:
Datsunworks Blog

Performance

 

We are still in the tuning phase so Gary’s car is on a comfortable (conservative) setting. With the Datsunworks head it made 350hp/248tq at the wheels on 91 octane:

 

Even in a testing stage it is absolutely thrilling to drive. Gary’s car is a full ZCG-style restoration so it has the chassis to harness the power. The sound it makes is a sonorous tone only the K-series derived KN20 head creates…with a gnarly exhaust note to match. The ITB induction also provides a healthy wail…it’s a sensory overload and revs seem to climb endlessly.

 

To illustrate the Datsunworks experience we captured some video of what it is like to drive around town…the 6-speed and EFI really allow this car to be docile, especially when cruising on the freeway and at part throttle. Drop a gear and its becomes a wild animal. Not going to lie…it gave me goosebumps both as a passenger and spectator.

Watch the video complete with multiple dyno passes, street acceleration and fly-bys. VOLUME UP!

 

 

Potential

 

Z Car Garage is stoked to be a part of the Datsunworks KN20 development. It is a clever design that pushes the envelope for L-Series engines. Sharing this experience is also part of the fun so we anticipate having a KN20 setup in a dedicated shop 240Z for clients to test drive and further evaluate. Although each application is different, we envision offering a bolt-in setup for your six-cylinder L-Series engine. The power potential is tremendous with the KN20…both NA and forced induction. We thank Derek at Datsunworks for giving us the opportunity to work with this innovative product.

 

Stay tune for more updates and LONG LIVE THE (TWIN CAM) Z!

 

…[read more]

 

At Z Car Garage we love keeping Z’s on the road. From concours-level restorations to light refurbishments, making a client’s goals reality is our passion. Richard W brought his 1971 Datsun 240Z from Eureka, Ca for a full mechanical restoration, ZCG-style. Our Z Car Garage Big-Brakes, Z Car Garage CV Axles and Z Car Garage Heat Shield along with a new drivetrain and full suspension transformed this Series 1 S30.

  

In 2017 Richard contacted us to inquire about restoration work. He understood we were booked, and we spoke again later, but this time he visited the shop with a photo album filled with photos of his beautiful, Sunshine Yellow Z.

“I did my due diligence and researched what ZCG could do, and arranged for a meeting with Rob to discuss my car. I asked if he would be interested in restoring my 1970 240 Z.  He was pretty adamant, ‘I don’t restore those rust buckets anymore.’ A little disheartened but I persisted. Would you take a look at the album I have of my car? He flipped through he pages and you could see him light up and the enthusiasm came forth. He said, ‘Where is the rust?’. I told him there was none as the car has been indoors for the last 40 years.”

 

Rob and Richard agreed that since the exterior was in great shape ZCG would perform a mechanical restoration. Richard is in his 70’s and still practices dentistry in the small town of Eureka. After being parked for decades he trailered the Z down and arrived at ZCG in January 2018 . Here is VIN #12291, with 63k original miles:

 

He bought this Z brand new 12/70 and absolutely adores it, being an integral part of his life for half a century! We love the story behind Richard’s Z lets’ take a look before going into the mechanical work…

Life With The Z

 

“We all have defining moments in our lives and those moments need to be prioritized. The marriage to my wife of 50+ years is of course the most important moment. She provided the resources to live in San Francisco and was so supportive of my graduation from college. That same year she became pregnant with our first born. We moved to Eureka at the same time. I was able to start my own business in 1970 and begin an adult life. All the important hurdles were checked off. We moved to Eureka with $300 in our pocket and a mountain of debt. But wait, there was one more hurdle…”

 

“…From across a parking lot, in Eureka no less, stood a bright yellow Ferrari. Upon closer inspection I was even more baffled. What was a Datsun 240Z?  I went to the local Datsun agency, long before Nissan came along and made my inquiry. Yes, the new 240Zs are very special and very desirable. They were being shipped in but there is a waiting list. Just add my name.  Sure enough they called a few weeks later and said there was an Orange Z on the lot. They made the mistake of letting me wring that car out and I was sold. While I was in school in San Francisco, I saw Cobras and Porsches that cost $6 – $7,000. Way out of my league but I could afford the $3,600 Z. Even if it meant borrowing $1,200. In early December 1970 I took possession of my Z. It became my car and my identity. It has remained just that for the last 50 years.“

 

“My oldest son was born the following February. Now all the pieces for my life fell into place. Marriage, college, moving to a permanent home, birth of our son and the final piece, my sports car. Being a young family in the ‘70s was simple. We just put Jason between our two seats the Bull Dog in the back and off we drove. No thought of a car seat. Before he was six months old, we had been the 700 miles to San Diego and the 700 miles to Canada. Not a care in the world and a wonderful way to see the country.” 

 

“My car was a daily driver. For the next 20 + years that was my car. As my boys grew up and learned to drive, I needed to provide a car for them for high school. Well, not my car.  So, I bought them an upgraded and modified ’71 240Z. I bought the Z because I felt they would be safer in that car. I didn’t want a larger car they would put a lot of friends in. Later on, I heard they actually had put 5 guys in the Z car.” 

 

Of course, over time, tastes changed and Richard succumbed to buying a 1992 Corvette. You know, the ones you fall into and climb out of. Fast forward to 2015 and his 240Z is in the garage, covered with the things a guy collects in a garage. The ‘vette became useless and the family all preferred the Z. This is where ZCG becomes part of Richard’s Z car journey. Let the mechanical restoration begin on this Series 1 that has not run since 1985…

Drivetrain

 

We got the original L24 with SUs running after sitting for years, but Richard wanted more power and Rob suggested a Rebello 3.1L engine. Supporting parts included an MSA 6-into-1 header, ZCG exhaust system, internally regulated 280ZX alternator, 280ZX gear reduction starter, KOYO race radiator (custom upper hose) and Z Car Garage Heat Shield. Here are a few pictures of the engine build/installation with many more in the gallery:

 

Powdercoated and plated parts adorn the engine:

 

Induction is handled by triple-Mikuni PH44 carbs on a Harada intake manifold.

   

Beneath the triple-Mikunis is our Z Car Garage Heat Shield, serial #00250:

 Before/After the engine bay restoration, more details below:

 

To handle the power from the 3.1L engine we replaced the stock transmission with a Nissan KA24 (FS5W71C) transmission. This was a common swap (before the CD009a came to market) performed by modifying a 280Z L-series bell housing. The KA24 unit is significantly stronger than early S30 transmissions.

 When we upgraded the transmission we also installed a JWT HD clutch with aluminum flywheel. Helping put the power down efficiently is an OS Giken LSD. The R180 houses a 4.11 R&P and the assembly is setup in-house (by Joshua Corwin). Rounding out the drivetrain upgrades are a set of Z Car Garage CV Axles (shown below)

  

Engine Bay Services

Richard’s Z received a total engine bay restoration. Please visit the gallery below for more pictures documenting the engine bay restoration work, it’s where our efforts shine!

 

With the engine/transmission removed we focused our efforts on restoring the engine bay.  Everything was cad plated or powdercoated.  All new fuel hoses, every cooling hose and all new hydraulic lines. Every nut/bolt is bagged and tagged before re-plating.

    

The Z’s body had been painted once before but the engine bay was left un-touched. We called upon our man William from William’s Auto Body re-spray the 919 Sunshine Yellow and it turned out fantastic. Before/After:

     More before/after shots showing fuel pump, hydraulic an coolant lines:

   

With the new engine/transmission even more detail work was performed:

 

Final Before/After in the engine bay:

 

Our ZCG Exhaust system using 2.5″ piping to a stainless resonator and Magnaflow muffler with slash-cut tip. Listen to the sound in the video below!

Dyno Tuning

 

Rob dyno tuned the Rebello 3.1L engine making a stout 199hp/221tq to the wheels. Enjoy the L-series music in this extended video of Richard’s Z including dyno runs, test drive with Rob and drive-bys:

 

Suspension

 

Richard’s chassis was treated to a full suspension rebuild with new parts, bushings and a full coil-over (Koni struts with our spring rates) suspension 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.

  

New parts included the T3 adjustable T/C rods, T3 rear control arms, T3 front/rear strut tower bars, new ball joints, new front bushings, all new bearings and seals and ST sway bars. Richard wanted a fantastic driver that was worry-free. We replaced all of the hydraulics and front/rear suspension assemblies to match the new driveline.  All suspension was either zinc’d or powdercoated:

 

Front Suspension refresh with T/C rod, crossmember and steering rack detail:

       
Rear end with T3 lower control arms and ST Sway bar:

 

 

Richard was ecstatic. It was the reaction we live for at ZCG: