Race car driver, restorer and Datsun Historian Glenn Chiou visited Z Car Garage today for dyno tuning on his IMSA GTU 260z race car! You might remember our previous blog post highlighting the ZCG CV Axles Glenn installed himself:
Glenn is preparing for the upcoming Rolex Monterey Motorsports Reunion at Laguna Seca and we specialize in dyno tuning vintage race cars for the event. Listen to that triple-Mikuni fed L-Series roar on the dyno…Glenn is dialed-in and ready to race!
The Different Drummer Z
Glenn Chiou is our client, fellow racer and friend. He was one of the first to run our Z Car Garage Big-Brakes on his RHD 240Z and actively vintage races both 510 and Z cars. You may have seen Glenn’s FAR Performance 240Z in VIPS Restaurant livery as raced in the 70’s by Loren St. Lawrence. Glenn restored this race car himself and it is now going back to Bay Area Datsun Dealers livery as raced by FAR Performance privateer Walt Maas. Glenn’s got a passion for re-telling the stories of legendary privateer Z car racers and his current restoration project is the Different Drummer Racing Z raced by Greg Sorrentino. This is a really cool race car with great history and build details behind it.
Chassis # RLS30-000024 is a July 1973 pre-production Datsun 260Z chassis that was sold by the factory for one dollar in 1975 to Different Drummer Racing, owned by Greg Sorrentino of Troy, Michigan. It was one of the very first Datsun 260Z chassis and was built by the legendary American fabricator, Ron Fournier. This Z car has been consistently raced for the last 40+ years in IMSA GTU, SCCA Trans-Am, and C-Production/GT-2 classes. You can see more history and details of the build HERE.
Thanks for your support Glenn! We we will be rooting for you at the Monterey event!
We love to see our parts installed and used on client’s cars. Race car driver, restorer and Datsun Historian Glenn Chiou is running our ZCG CV Axles in this IMSA GTU 260z race car!
Glenn is preparing for the upcoming Rolex Monterey Motorsports Reunion event at Laguna Seca. A half shaft failure is not something he wanted to worry about while racing so he replaced them with ZCG CV Axles. Glenn installed set #367 himself with ease:
The Different Drummer Z
Glenn Chiou is our client, fellow racer and friend. He was one of the first to run our Z Car Garage Big-Brakes on his RHD 240Z and actively vintage races both 510 and Z cars. You may have seen Glenn’s FAR Performance 240Z in VIPS Restaurant livery as raced in the 70’s by Loren St. Lawrence. Glenn restored this race car himself and it is now going back to Bay Area Datsun Dealers livery as raced by FAR Performance privateer Walt Maas.
Glenn’s got a passion for re-telling the stories of legendary privateer Z car racers and his current restoration project is the Different Drummer Racing Z raced by Greg Sorrentino. This is a really cool race car with great history and build details behind it.
Chassis # RLS30-000024 is a July 1973 pre-production Datsun 260Z chassis that was sold by the factory for one dollar in 1975 to Different Drummer Racing, owned by Greg Sorrentino of Troy, Michigan. It was one of the very first Datsun 260Z chassis and was built by the legendary American fabricator, Ron Fournier. This Z car has been consistently raced for the last 40+ years in IMSA GTU, SCCA Trans-Am, and C-Production/GT-2 classes.
In 1975, the Datsun Competition Department agreed to support Greg Sorrentino’s IMSA GTU racing efforts by providing him a pre-production Datsun 260Z. Once in Sorrentino’s hands, it was left to his all-star lineup of builders to help him build a frighteningly fast IMSA GTU car:
Chassis preparation was to the skilled hands of legendary metal fabricator, Ron Fournier
Suspension duties were left to Mac Tilton
John Knepp of Electramotive Engineering built the motors for Different Drummer Racing
The DDR Z in action at Portland International Raceway in 1979:
You can read more about the official history on this Z as documented by Glenn here:
As usual, Glenn’s painstaking efforts and diligence result in a faithful restoration…where parts are not available he has gone to extraordinary lengths to re-create pieces from historical photos…all from his garage at home.
Thanks for your support Glenn! We we will be rooting for you at the Monterey event!
Z Car Garage CV Axles
Over 130 sets of our ZCG CV Axles are installed in client’s cars all over the world. For more information please visit our detailed post our HERE. Below are just a few examples of race cars running out CV Axles:
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 – installed on Adam Carolla’s “Greg Sorrentino #90” Datsun 510.
Filed under: Events,Racing
by Alvin G @ 6:37 pm on June 1, 2021
Twenty years in the waiting, but the Classic Sports Racing Group (CSRG) is returning to Laguna Seca this weekend, June 5-6! They are hosting a (FREE) car corral in the paddock of Laguna Seca with a limited number (30) of parking spots available for your vintage car. This event is not open to the general public, only parking corral participants! To get your car corral parking spot please contact Geoff at CSRG: race.director@csrgweb.org
Get ready for some B-Sedan Racing action!
Here is a map of the paddock with car corral parking area and race schedule. You will need to fill out the following form HERE
This info will be provided to Laguna Seca for use on the gate list. NOTE: One driver and one passenger per car, masks on, and no pets please. This is all part of Laguna’s COVID-19 protocols.
Z Car Garage will be racing and supporting our clients. Rob Fuller, Kelvin and Tom will be racing their Datsun 510s in Group 9:
Rob will also be racing the #49 Mazda Miata in Group 8:
We met Bruce L at the Rolex Monterey Motorsports Reunion. He has owned these (two) Series 1 240z cars for decades and wanted us to revive them. Bruce has performed all work himself and never let anyone else touch his Z cars so we were honored to oblige. In addition to getting the cars road-worthy each one sports our Z Car Garage Big-Brakes and Z Car Garage CV Axles. Let’s take a look at how Bruce got into S30’s.
Beginnings
Bruce was introduced to Datsuns with his parent’s Bluebird 4-door 1300 (he took his driving license in this in 1969). He even purchased a brand new 1971 Datsun pickup in 1970 for $1800 and got a glimpse of the Z car:
“In the dealership showroom floor while purchasing this Pickup was a brand new early production Dark Green 1969 240Z with a Tan interior. The price tag was 3,400.00 ish. There was no way I could afford that kind of money for another car, let alone a sports car, and I needed a truck to haul my Dirt Bike to and from the Hollister Hills off-road park. Still, I wanted a 240Z instead of any of the muscle cars of the era. They just didn’t speak to me. Too big and bulky and the Cobra had no top to speak of in those days and it didn’t say buy-me.”
In 1973 Bruce walked into that same dealership to see and purchase a used ’72 Lime Yellow 240z. Leap forward to 1982 and he purchased “Christine” from the same Datsun mechanic that used to work on his yellow ’72. Later in 1989 is when he purchased “Valerie” from a lady named Valerie who wanted to sell right after the ’89 Loma Prieta Earthquake.
“I love both of my Z’s even if I had to store them both for ten years. Rob brought them both back to life for me and added all of the improvements to make them come alive. And a thrill to drive once again. I still do all the small general maintenance for the most part on both Z’s, but have given the chore of anything else that I don’t wish to tackle at 67 years old to Rob.”
Bruce and his wife are fantastic people that have been active in the Z car community for a long time. After seeing us at the Rolex event, our operations and many happy customers Bruce wanted us to go through all of his personal cars. Both Series 1 S30’s came to Z Car Garage, starting with Valerie and later the Hot Rod, Christine.
Valerie
Valerie had been sitting for about 10 years and we performed the basics to get it back on the road again. The fuel tank was removed, boiled out and all fuel/vapor-associated lines were replaced:
Chassis
The chassis was treated to a light refresh with new parts and bushings from Techno Toy Tuning. T3 finishes the suspension in our signature color and we really appreciate Gabriel and his staff. T3 adjustable front T/C rods and lower rear control arms:
Bruce had already done springs and struts on Valerie long ago…but nothing had serious miles on it so we just had to correct a couple of things, trimmed front springs for a nicer stance and trimmed bump stops. We also replaced the rack and moustache bar bushings.
The diff was removed and re-sealed:
ZCG Big-Brakes and CV Axles
Our readers are likely familiar with “Mrs. Butters”, our 1971 Series 1 240z shop demo car with full suspension and our ZCG Big-Brakes. Following a test drive in Butters, clients are sold on our Z Car Garage Big-Brakes and Z Car Garage CV Axles! Read below for a brief description of these parts:
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 Bruce’s stock brakes and installed our ZCG Big-Brake kit on both Valerie and Christine. Up front:
The rear drums were replace with the ZCG setup and factory hand brake functionality remains!
The ZCG Big-Brake Kit fits nicely behind 15″ (Valerie) and 16″ (Christine) Panasports and Bruce is really happy with the disc brake upgrades.
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 100 CV axle kits on customer cars and we are stoked with all of the positive feedback.
We installed CV Axle kit #258 on Valerie and #266 on Christine. Stock half shafts (L) and ZCG units:
More pictures of the ZCG axles installed, also visible are the T3 control arms:
Engine
Bruce gives a little background on Valerie’s drivetrain:
“I originally intended to make Valerie a commute car for my wife to travel between Prunedale and Morgan Hill. The job never materialized and I then decided to make Valerie into a show car. Everything about Christine in terms of how she was built is identical with Valerie, except for the engine which she still retains a 2.4 L with E-31 head, Schneider cam and stock twin” SUs.” Valerie has a 5 speed transmission with custom shift lever.”
With the engine gone through by Bruce many years ago, we went ahead replaced the oil pan gasket, pulled/sealed transmission, installed a JWT clutch and updated ignition with Pertronix.
On the dyno we dialed it in for best performance, making 128hp/127tq at the wheels, video below:
Just You and Me
Bruce and his wife Enjoying Valerie. He recalls an old car show we both attended (but did know each other then):
“I had Valerie stripped down to bare metal also and repainted in 1989 Mercedes Back Pearl. I then had her wet sanded and polished to a near mirror finish. I took her to the Ohlone College Car Show in 2002 where she won 1st place in the 240Z category out of Fifty Two 240Z’s. Mr. K was present and awarded Valerie “Best of Show”, signing both awards.”
Christine
As soon as we finished Valerie, Bruce brought us his second 1970 S30 affectionately named “Christine”. This is his Hot Rod Z:
“I replaced the original 2.4 L engine with a rebuilt 2.8 L engine. I then had an E-31 Head Ported and Polished with a Schneider Cam installed. I installed a 280Z 5-speed transmission that required me to make a custom linkage making the gearshift lever appear to be in a stock position on the console. Then around 1985 I had the car stripped of all way down to bare metal, prepped, sanded along with having deletes welded in on the rear bumper to accommodate the Cobra style bumper.”
Christine was also sitting for a decade and we performed similar revival tasks as done to Valerie. The fuel tank was pulled, clutch and oil plump replaced and we did all the corrections that were needed, with ZCG touches. An MSD6AL box with Blaster2 coil was installed and triple-Mikuni PHH 40 carbs (now with titanium velocity stacks) were re-jetted. Rob dyno tuned Christine, making 165hp/159tq at the wheels:
Bruce was pleased:
“In 2019 I took Christine to Z Car Garage and had Rob Fuller complete a refresh on the engine to include a Dyno Tune on the Carburetors. Rob did a fantastic job of getting Christine back up and running the way she should be as she had been in storage for 10 years. Rob also did a complete tubular control arm upgrade along with installing solid one-piece half shafts and a complete four-wheel disc brake conversion kit to include the emergency brake.”
Both of these products are available now from Z Car Garage. Please email/call Rob!
The Big-Brakes look great behind a new set of 16×7 Panasport wheels with s007a tires in 225/50/16:
Enjoying the Ride
With both 1970 Z cars back on the road Bruce was out Enjoying The Ride. Above, Christine enjoys prime parking at the Pacific Grove Car Show during Monterey Car Week in 2019. Below, Bruce attended the ZONC Annual Car Show in Brisbane, CA earning 1st place with Christine:
On that car show note, here is a fun fact: Bruce has been the caretaker of “Sunshine”, a special Z32. Sunshine was previously owned by Carolyn Dudley – ZONC President for many years and personal friend of Mr. K.
After Carolyn passed away (RIP), her son sold the Z to Bruce. Under his ownership Bruce has given this 300zx a full restoration and keeps it running well at 157k miles.
“Sunshine was given center stage at Blackhawk Car Show in 2004. People were recognizing Sunshine and they approached her and laid their hands on the car and were praying. That gave me chills. I stopped taking Sunshine to events until I took her 2 years ago to the ZONC picnic in the bay area and still a lot of people recognized her.”
Feelin’ Stronger Everyday
We understand that it is hard to entrust a shop with your pride and joy. After purchasing Christine in 1982, all of the work performed on her was completed by Bruce and his best friend in a garage.
“I have never left either of my Z’s at any place to be worked on other than the 2 paint shops. (One in 1985 Sean’s Auto Body in Salinas – Black Acrylic Enamel and One in 1991 or 92 at J&J Auto Body in Auburn Calif – 1989 Mercedes Black Pearl). I also wasn’t concerned in 2019 with leaving either of my 240Z’s with Rob Fuller at ZCG because of his reputation in the Z World that I explored prior to contacting him at the shop. Christine was never purchased as an investment, she was purchased as a car that I cherished and now 38 years later Christine is still not for sale.”
We thank Bruce for giving us the opportunity to help get both of his 1970 Z cars back on the road. Enjoy the picture gallery and LONG LIVE THE Z!
At Z Car Garage, the Datsun 510 is very close to our heart. Our hero John Morton piloted a 510 in the Trans Am racing series to put Nissan on the map, fueling every Datsun enthusiast’s passion for hot-rodding the humble economy car. We also have our share of race, personal and project 510s. When Mark G contacted us to work on his 510, we happily obliged especially after learning that it was built by our friend, fellow racer and Datsun 510 guru Troy Ermish.
510 Beginnings
Mark is an avid car enthusiast, growing up here in the South Bay. His first car was a lowered Capri that he tracked in the 80’s at Laguna Seca. He attributes his 510 passion from its rich racing heritage:
“I was introduced to Sports Car racing at Laguna Seca in the mid 70’s. I have been going to most all of the different events ever since. My favorite was Sports Cars racing, Camel GT’s, IMSA, ALMS. Thus the ‘Poor Man’s BMW 2002’, my recent 510 is my third and hopefully last. Number 2 was also brought back from the dead and used to commute and cruise over Highway 17 to Aptos to work for my Father’s business. The surf rack was installed to haul all kinds of stuff.”
In 2015, Mark decided to fulfill his dream of another 510 and bought a project car:
“I wanted something I could turn into a street racer and autocross car for my son. As in any extensive full blown renovation, everything on the car has been touched. I tore it completely apart, soda-blasted the car, personally sandblasted every bolt and part on the car, welded in new floor panels and rebuilt the trunk, back panel and rear valance.”
The project car:
Mark’s extensive bodywork:
“I met Troy Ermish early on in the process, so when the floors and trunk were repaired, the car was trailered to Troy for a full roll cage, front fender wells were cut back and jack points installed in the rocker panels at the “B” Pillars.”
After 18months of bodywork, which Mark was heavily involved with, it was back to Ermish for the final build out. The car was purchased with a 1600 and funky 4 speed, but Mark also scored a 2000cc with two side draft Mikuni’s and a ZX 5 speed transmission. The engine was sent to Rebello for a full rebuild and upgrade to 2360cc spec.
T- Square Brain
Mark studied art in school and his attention to detail throughout the 510 impressive. From the no-frills interior to uncluttered engine bay it’s no surprise that he earned the nickname “T-square brain”. Each time I see this car it reveals another level of fanaticism that reminds me how awesome Datsun-owners are. Enjoy a few detail shots with more pics in the gallery below:
Engine Bay
Devoid of unnecessary bits, the Rebello 2.3 with dual-Mikuni’s takes center stage:
Interior
A tribute to the B-Sedan racing 510s of the 70’s, the interior is spartan with a simple dash, roll cage and OMP seats:
Again, it’s super sanitary in here with subtle color choices and straightforward switchgear. That is Pete Brock’s signature on the dash!
Body
The 2017 Corvette Racing Yellow paint is loud, but in a good way. Mark’s touches here are an exercise in restraint, while harking back to the Trans Am racers he remembered. The white roundel was inspired by our friend Dave Scholz’ Datsun 240z as seen on Petrolicious . 13″ re-pop’d (VTO) AR Libras are the definitive wheel choice here, with contrasting black spokes and chunky Toyo R888 tires:
Sorting at ZCG
The 510 was constructed with both Mark’s skillset and Troy’s finishing touches. After he finished his project, Mark visited ZCG for adjustments and sorting.
ZCG CV Axles!
We upgraded Mark’s standard half shafts to 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 about to install the new CVs:
Standard half shafts (left) and ZCG CV Axles (right). Note all of the powdercoated suspension parts:
Getting Mark Back On The Road
Mark was experiencing a re-occurring high water temp issue. Finally the head gasket was compromised so we pulled the engine for a refresh.
We re-intalled the the engine and tidied up the engine bay. The electric fan was removed and a fan clutch installed utilizing a 620 water pump/S30 fan blade to make it all fit behind the Koyo radiator:
Dyno Tuning
On the dyno, we had a case of deja vu as Mark’s 510 is almost similar to Keith’s. Rob is familiar with tuning the L-Ser-es engine in both race and street 510s. Mark’s Rebello 2360 put own 189hp/178tq to the wheels, gaining 8hp/10tq with Rob’s tuning. You can hear it scream in the video below. Mark will re-visit us for another dyno session after he accumulates more miles.
Enjoying The Ride
With a few more minor tweaks like door locks and windows, Mark was out and about with his 510. He joined us at the local Fuel Supply Cars and Coffee:
I was fortunate to catch up with Mark and meet his son Dom who also has motorsports background. It was rad to see the Datsun being a family affair and Mark all smiles behind the wheel:
“I feel very lucky to be part of the Z Car Garage family. The staff are all great guys. I will continue to bring the car in for Anything it needs.”
Big thanks to Mark for letting us service his 510. We really enjoyed having the 510 in the shop!
Speaking of Love for The 510…this weekend 20+ B-Sedan racers will be running at Laguna Seca. I will have a full report for you, stay tuned!
