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We have the pleasure of continually developing Dirk’s 1973 Datsun 240z to help achieve his vision of a Z car that is adept on the street and track. Improving the driving experience are our Z Car Garage Big-BrakesZ Car Garage CV Axles, Silvia 6-speed transmission and a host of chassis and driveline upgrades.

 

Dirk shares his experience working with us:

“Collaborating closely with Rob and ZCG has elevated the optimization process. Rob will frequently talk me out of a bad idea, or into a good one (like the OS Giken LSD). Sometimes I talk him into a bad idea and it turns out to work really well, like the S15 gearbox. The most fun is when we brainstorm stuff together like turning the catch can setup into an improvised simple PCV system, eliminating all hints of oil fumes from the car while running.”

Datsun 510, 620 and Z car love

Since our last iteration, Dirk as been back to Z Car Garage for a few major projects. Let’s take a look at his Datsun story first. Dirk bought his first Datsun in 2014, a 1970 510, to learn how to work on cars himself. After learning more about the history of Datsun, and the significance of both the 510 and the 240Z in establishing Japanese cars in the American market, he knew he had to own a Z as well.

 
 

A year later, the right Z showed up on eBay in Texas, a 1973 in silver gray. After pouring over the photos and talking to the seller, Dirk bought the car sight unseen. The idea was to have a nice Z to enjoy and drive, while continuing to work on the (sometimes not) rolling restoration of his 510. The car was lovingly restored by a dad and his children and in mostly stock condition. Dirk also has Datsun 620 work truck complete with dual-Mikuni’s:

  
After many more tweaks, different induction setups, spring rate changes, rebuilt stock brakes, and 24K miles of driving including a few track days, Dirk’s Z was inching closer and closer to his vision.

 
Photos: Dito Milian/Gotbluemilk.com
 

“After installing a Datsun Spirit STR-3 engine with a set of Nismo Mikuni PHH44 carburetors, the biggest weak spots left were the rest of the drivetrain (especially the stock 4-speed transmission, but the Subaru diff had also developed some bearing issues), the stock brakes, and of course the loose nut behind the wheel – but sadly that last component typically takes too much money and time to modify thoroughly.”

 
 

After comparing the Z to his Subaru BRZ on the track, it was clear the Z was better at everything except for shifting gears. Since his engine made a healthy amount of torque, but not enough to warrant a CD009 (350z) transmission, Dirk kept looking for alternatives. He also wanted something with slightly closer gear ratios to better suit the engine’s power band. An S15 Silvia 6-speed seemed like the perfect fit and we installed it back in 2019.

S15 6-speed transmission

 
 

The first S15 box had some weak synchros, so Dirk sourced another one that was installed with OE trans fluid, as well as a set of fresh OE motor and trans mounts to help with shifter feel and reduce vibrations in the car.

“The S15 transmission fit surprisingly well. ZCG built a custom crossmember to locate it, and the shifter lined up almost perfectly. No transmission tunnel mods were necessary. The modern shifter looked out of place, so ZCG built a custom unit that would look stock, and work with the Datsun competition shift knob. A small 6-speed shift pattern sticker modeled after the one used in the Silvia is the only clue there’s something different going on under this car. And of course the driving experience.”

Making the S15 shifter look factory, we are happy with the result and Dirk’s subtle shift pattern sticker:

 
 
 

The Datsun Comp shift knob complements the steering wheel:

 

Chassis and Driveline Upgrades

First, there was work to upgrade the steering geometry and suspension. With the car being lowered quite a bit, despite having 1″ RCAs installed, it had a ton of bump steer. Rob installed DP racing adjustable tie rods, removed the front springs, and completely eliminated the bump steer on the alignment rack while moving the suspension through its full range of motion.

New DP Racing tie-rods and in-house alignment:

 

We also refurbished Dirk’s steering rack with fresh parts from our stash:

 

With the Z back in the shop for bodywork we took the opportunity to make more suspension changes. New Koni Race shocks from T3 were installed, which were a much better match for the 300# and 350# spring rates than the Koni Sport shocks they replaced (as Dirk initially ordered the coil overs with lower spring rates, he never replaced the shocks after adjusting the spring rates, and the car always felt underdamped, particularly on the not-adjustable compression stroke):

 

ZCG Big-Brakes and CV Axles

    
Dirk visited ZCG and drove “Mrs. Butters”, our 1970 Series 1 240z shop demo car and he was sold on our Z Car Garage Big-Brakes (for small wheels) and Z Car Garage CV Axles! Butters has a way of doing this to our customers 🙂 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 removed Dirk’s stock brakes and installed our ZCG Big-Brake kit.

 
ZCG Big-brakes replacing stock setup up front:

 
 

At the rear, the factory drum brakes were replaced with our ZCG Big-Brakes. Factory handbrake functionality 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.

 
 

Also visible on Dirk’s Z are the excellent adjustable lower control arms from Techno Toy Tuning.

 
 

3 Liter L-Series Power

Unfortunately, the Datsun Spirit engine developed rod knock which was the impetus for a big drivetrain upgrade. Several other parts of the car where refined as well.

 

The L28 engine was pulled, sent to Rebello, and built into a 3L powerhouse. Dave bored out the 44PHH venturis to a custom 38.5mm, to hit the perfect compromise between peak power and drivability. We also installed a fresh water pump, alternator, new fan blade, OEM fan clutch and fresh air filters. The beautiful DP Racing oil pan remained. More photos in the gallery below:

 
A custom stainless 2.5″ mandrel-bent exhaust mates with a new set of coated Pacesetter headers and Z Story Street muffler (in a search for a reduction in volume while keeping a nice note). Dirk discusses the clutch/flywheel combo below:

 

“The STR-3 already was able to slip the Exedy clutch and we were never fans of the Chromoly steel flywheel. A Jim Wolf Technologies clutch and flywheel combo was installed after first trying a newly developed Kameari single plate street clutch kit, which we both found too loud and racy for this street car. While the JWT pressure plate yielded a different pedal feel that took some getting used too, it was not too heavy and perfectly comfortable to drive in traffic. More importantly, it never slipped under any kind of abuse.”

The clutch hydraulics were replaced to work with new alumimum flywheel/JWT HD clutch combo:

 
 

We installed a ZCG-built 4.11 OS Giken limited-slip differential in the R180 along with a custom aluminum driveshaft:

 
 

Dyno Tuning

 

The previous L28 made 202hp/194tq at the wheels with Rob’s tuning. Now with the fresh 3L it baselined at 245hp/226tq with more area under the curve:

 

Rob tuned the car further on the chassis dyno, setting it up with a very lean idle at Dirk’s request (to minimize gasoline fumes at idle). With A/F optimized and Nismo Mikuni carbs massaged, Rob unlocked another 20hp yielding a stout 265hp/232tq to the wheels:

 
 

With gains of 62hp/37tq at the wheels over the L28, Dirk is very happy with the new 3L:

“While the Datsun Spirit engine had a very peppy mid-range and made more delicious induction noises, there’s no argument that the more powerful Rebello engine elevated the car to the next level of performance and fun. The entire setup worked incredibly well together, and we hit an impressive 265hp at the rear wheels, or 60hp more than the engine made in its previous iteration, putting it in the 100hp/liter ballpark at the crank. Not bad for a dinosaur engine on California pump gas!”

Enjoy the dyno video and L-series music!

 

Sorting

The little things are what we excel at and Dirk had a list for us to knock out. While at ZCG, we replaced the heavily sandblasted OE windshield, and did some rust remediation in the cowl area, as Dirk had started noticing water making it into the interior fan assembly after washing the car. More photos in the gallery below:

 
 

The heater and blower motor assembly was refurbished with new ducting seals and lubed linkage:

 

The headlight switch had also developed some issues where sometimes the lights would turn off completely when switching between low and high beam, and was replaced with a good used example from the ZCG parts stash.

“The headlights now worked reliably, the new engine didn’t consume any significant amount of oil, and the whole drivetrain worked together even better than before with the new clutch and flywheel combo.”

 

Unfortunately, 7 months and many miles later, Dirk was back after a minor nighttime crash that took out the left fender, front bumper and valance, and dented the hood. After bodywork and paint from our man William from William’s Auto Body, we installed a euro front bumper, used turn signal assembly, cleaned up electrical wiring from alternator through firewall and sorted his Speedhut GPS speedo box.

 
 

To improve safety, comfort, and avoid future crashes, Dirk upgraded his headlights to a new set of Holley Retrobrights, and GTR Carbide 2.0 turn signal bulbs front and rear from Headlight Revolution.

“The headlights are a world ahead of the old Maxxima LED units, which themselves outperformed the Sylvania Halogen sealed beams, while staying very under the radar, with their sealed beam-inspired looks. And the turn signals are now highly noticeable, even in the brightest daylight.”

 

Enjoying the Ride

Dirk’s been driving his Z-car pretty much every day since the latest upgrades, and it’s been working phenomenally well:

“The drivetrain + brakes make it as happy to accelerate as it is to stop, and with the quick, closely spaced shifts and eager engine, it’s fun to do a casual grocery run, and to drive quickly. With the electrical systems and all fumes well under control, it’s truly a car you can do anything with, and probably more reliable than my BMW.”

 

We loved to see Dirk driving his Z on rallies and fun runs this year. Most recently we joined fellow Japanese vintage car owners on the Tokyo Calling event hosted by Breakfast Club Rally:

 

Dirk also joined us for a New Year’s Day drive through our favorite Bay Area Backroads:

 

We enjoyed working with you Dirk and it was rewarding to help improve your Z.

“Some say good is the enemy of great, but that’s true if you think you’re done. I don’t see my Z car less as a “build” that’s done. I’m always developing it, just like continually developing a race car (e.g. my Lemons car, http://instagram.com/bittersc243) to stay competitive. In this case the competition is merely for making the Z into the most fun driving experience I can imagine, and the journey of continuous refinement and improvement is a big part of the fun for me.”

 

While Dirk works through a few interior projects (new carpets, stereo upgrade) on his own, we’re getting ready to further revise the front suspension/steering, and wider wheel + tire options. Enjoy more photo documentation of our work in the gallery below. Thanks for your support Dirk and LONG LIVE THE Z!

 




ZCG PARTS: Z Car Garage CV Axles for Jay’s Datsun 510

Filed under: 510,Parts
by Alvin G @ 5:10 pm on July 18, 2022

 

We love to see owners installing our Z Car Garage CV Axles in their vintage Nissans and Datsuns. This 1971 Datsun 510 is owned by Jay W and he replaced his old CV Axle kit with our ZCG CV Axles.

 

Z Car Garage is proud to offer a CV axle conversion kit for your Datsun S30 and 510. We have sold over 200 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.

 
 

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. 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. Each axle has a serial # for peace of mind and the kit comes with everything you need to install on your car.

 

Jay was looking for CV Axles to run on his 1971 Datsun 510 with Subaru R160 diff and stock 510 bolt-in stub axles:

“I’ve followed ZCG since you launched the Z Car blog years ago. When I first saw the axles on the blog I wanted to purchase them, but I already had the WCR CVs with adapters. I got tired of checking the adapters and safety wiring the bolts. The ZCG axles appealed to me due to their overall design and race proven duties. Talking to Rob about them earlier this year made the decision easy.”

 

Like many enthusiasts Jay wanted to install them himself as he enjoys working on his Datsun. He kindly sent us a few installation pictures of the ZCG CV Axles (set #0403) replacing the old CVs.

 

We were pleased to hear Jay’s installation went smoothly:

“I work in Mountain View, so I picked them up in person. Rob walked me through the process and pre-greased the CVs so installation was very simple. I had to adjust my exhaust a bit to clear the axles, but that was pretty easy. The build quality of these is top notch, I really like the details: The hole alignment marker and clearance for a box wrench. “

More install photos can be seen in the gallery below:

 

 

Datsun 510 Dreams

 

We actually know Jay from the days of the All-Datsun Meet at Mt. Shasta many years ago. Let’s hear how he got into his Dimes:

“I purchased my 510 wagon in Oakland in 2005. The seller had this green sedan in his garage he purchased new in 1971. He was performing an engine compartment refresh and swap. I offered to purchase the sedan too and a year later he called me back. The car was rolling, but all the parts were in various boxes or missing. Besides a clean body the car came with a DL Potter engine and Nissan competition transmission which had zero miles on them. I fell victim to project delays and scope creep due to work, family and moving.”

“I didn’t get the car on the road until May 2020. I also enjoy doing as much work as possible myself which definitely slows down progress. The goal with this car is to build a dependable well-handling driver which is period correct in appearance but can still be comfortable for my family. Much like the BTW 510 from Car and Driver. I plan to use the cars in some driving rally’s and the occasional autox- and track days.”

 
 

The car has changed a lot over the last two years and will continue to evolve as a driving project. As of today the car has this configuration:

Engine: L18, dual 40mm Mikuni carbs, custom roadster air filter, Fujitsubo exhaust

Drivetrain: Nissan comp transmission, Kameari flywheel, 4.11 R160 LSD

Suspension and brakes: 280ZX front struts and brakes, 240Z rear drums, Koni struts and shocks, 225 lb/in F and 900 lb/in R Swift springs, DPR bushings, 25mm F and 20mm R sway bars

Body: Resprayed body in early 80s, but close to factory color.

 

Interior

  
 

FloFit front seats, full carpet with extra sound deadening. Jay added some footwell lights which turn on with the dome light. Makes night access a lot nicer.

 

Enjoying the Ride

 

Jay has been driving his 510 everywhere, most recently on last weekend’s Breakfast Club Rally in Petaluma, CA:

 

Jay is stoked with the ZCG CV Axle performance and had a blast running the 510 through the Sierras on the DWA Rally in June:

Rally was amazing, so much fun with a great group of people and cars. The 510 drove perfect and the prep paid off. Car is definitely underpowered at >8000ft above sea level. Still very fun.”

 

We love Jay’s attention to detail and it shows in his rally prep! Check out the skid plate his CAD designed:

 

Enjoy this video of Jay’s 510 in action:

 

 

Jay even made it out to Laguna Seca with his family in the 510 to watch the SVRA B-Sedan races (full report soon)! See more of Jay’s 510 on his Instagram.

 

Thank you Jay for your support and keep Enjoying the Ride! More photos in the gallery below:

“Just following up regarding the CV axle kit. I installed the kit right after picking it up from you in the beginning of March. Thank you for pre-greasing the CVs, and making the install pretty quick. Thanks again for making these parts, now I’m just waiting for the 510 brakes you’ll make. Also, congratulations on 18 years, that’s very impressive!”

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TUNING: Pat’s 1970 Datsun 2000 Roadster

Filed under: Featured Cars and Projects,Performance
by Alvin G @ 3:11 pm on April 4, 2022

 

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!

 

…[read more]




Still AmaZing: David’s 1972 Datsun 240Z

Filed under: 240z,Featured Cars and Projects,Performance
by Alvin G @ 5:10 pm on January 26, 2022


David O. has been a Z Car Garage client since 2005. Together, we helped achieve his vision of a fully restored S30 with multi-dimensional performance: a daily driver that is equally adept at canyon runs and open track events. 17 years later David is still Enjoying the Ride and recently visited us for track day preparation.

 

Before we get into the build details dating back to 2005, let’s hear from David on his recent track day experience.

Take it to the Track!

 

David is an avid motorsports fan and driver. The Z has seen many track days since the restoration and came out of storage so he visited Z Car Garage for a pre-inspection.

 

We bled the brakes and made sure everything was ready for the event. He had a great time:

“It was my first time back on the track with the 240z in several years. I went out for half a day with Hagerty Insurance and their affiliation with SCCA’s Track Night in America. The people were great and it was a very “docile” track day with mandatory point-by’s even in the advanced group. It was a great way to knock the rust off after a few years off the track.”

“Rob Fuller prepped the car a few days before and she behaved beautifully. I managed a 1:59 lap but I was lifting a bit going up to turn six because I was afraid of breaking the 90dB sound limit. Of course, Z-Car got a lot of love from the other attendees. :-)”

Enjoy this video of David’s Z in action with in-car and chase footage from Laguna Seca and more:

 

History

 

We met David and his newly acquired Z in 2005. Long before the days of Facebook and Instagram, our mutual friend and Datsun fanatic Tom Dockery referred David to ZCG:

“I’ve been working with Rob since February of 2005 when I purchased my 240z from a guy in Redding. It was a true barn car. He drove it down and Rob inspected it before I bought it. I didn’t know anything about the car except that I wanted something fun to drive with a manual transmission. I’d always thought the 240z was cool because my 5th and 6th grade teacher had one – and she was very cool.”

“The first weekend I had the car it rained really hard and I found out all the seals were useless. There was about a quarter inch of water in the car and mold had already started growing. I took it to Rob, and once the seats were out, and the carpet was out, and the seals were in, Rob suggested the Recaro seats, the roll bar, and harness. It was just about that time I did my first track day in someone else’s car, and I decided I wanted to track the 240z. And that’s when I started what I call the “accidental restoration.”

Paint/Body

 

While we do not have in-progress photos of the restoration, there are many shots of David enjoying the finished restoration. Our man William worked his magic to apply the Nissan 112 Paint (Tennis Ball Green). David recalls his vision for the Z:

“My goal when restoring was to have a track-ready, fun to drive machine that did justice to the original car. My car was originally orange, was red when I purchased it, but I wanted something different. That’s when I went with the tennis ball green color, which was one of the original colors. It was manufactured in October of 1971, so she turned 50 just last fall.”

 

Engine

 

Full engine bay services included re-plating and powdercoating parts. The L24 was replaced with factory-spec L28 with triple-Mikuni induction. A custom cam was designed by Rob for better top-end performance. The Z put down 167hp/174tq at the wheels on the ZCG dyno:

 

Interior

 

There’s very little on the car that was left untouched – David took pride in the interior:

“I pretty much went with Rob’s suggestions (pros and cons) and learned while I went along. The gauges were all me. As much as I liked the originals, the were just too dim and difficult to read at night. I replaced them with white-backed Autometer gauges but kept the green backlighting. I also kept the original turn signals and embedded them in the new gauges. I didn’t keep the clock, and the fuel gauge is the carbon fiber reinforced glove box.”

 

More details like Recaro seats, Roll bar with 5-point harnesses, updated fuse box and high voltage bypass for the steering column, 260z lighted console panel and Sony bluetooth radio. Outside, Euro tail lights with LEDs:

 

Z Car Garage Big-Brakes

 

David’s Z was the first one to receive our Z Car Garage Big-Brakes. This was our initial (2008) setup utilizing Stoptech ST-40 calipers and our own brackets. We had extensive track testing with pro-driver David Ray:

 

James’s also runs this 328mm kit on his turbocharged L-Series beast, Medusa. Not to be confused with our current Z Car Garage Big-Brakes!

 
 

Enjoying the Ride

 

We have Enjoyed the Ride with David at many events over the last 17 years. Most recently I got to catch up with him at our New Nissan Z event. His Z still looks amaZing!

 

Here are few events from years ago with David…some of you might remember attending these too!

2008 ZONC Blackhawk Museum Car Show

 

2010 and 2011 Palo Alto Concours d’ Elegance – the crowd loved his Z car!

 

2008 Motoring J Style…remember we had a superb turnout for the caravan starting at Z Car Garage!

 

2008 and 2011 Silicon Valley Auto Show at the San Jose Convention Center

 

Long Live The Z!


Thank you David for your support and friendship all these years. We love that you keep your Z on the road and it makes you smile behind the wheel whether its on the track or or street. Stay tuned as David will be returning to ZCG later this year for 3.1L engine upgrade! More pictures in the gallery below…
…[read more]




RACE REPORT: IMSA GTU Z Cars at the Velocity Invitational!

Filed under: 240z,Events,Racing
by Alvin G @ 5:10 pm on January 17, 2022

 

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.

Photo by Larry Chen

 

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

Photo by Kristina Cilia

 
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).

Velovity Invitational Datsun 240 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

Photo by Larry Chen

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

Velocity Invitational Historic Racing Laguna Seca

Photo by Kevin Ehrlich

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:

Velocity Invitational Historic Racing Laguna Seca
 

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

Photo by Pall Kornmayer

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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