This 1966 Datsun 1600 Roadster is a turn-key restomod built by our friends at Spriso Motorsports. Highlights include excellent power and reliability from the Nissan S15 SR20DE/5-speed drivetrain with full chassis, suspension and braking upgrades. Ultimate bright-work and style with OEM Nissan and rare parts utilized throughout. A rare opportunity to own one, it is complete and ready to drive anywhere! Full details with build documentation and photos can be seen on our FOR SALE page HERE (SOLD)
We love working on cars and what really fuels the passion at Z Car Garage are the stories that connect each owner to their cherished rides. Christine K visited our shop earlier this year for routine maintenance on her 2004 Nissan 350Z 6MT Roadster and we were pleasantly surprised by her history linking to Datsun legends, mutual friends and family!
It’Z a Small Datsun World
Christine is a local San Jose school teacher and it truly is a small world as she was the kindergarten teacher for my two daughters just a few years ago. You can imagine how surprised I was to see her at Z Car Garage one day while I was there to work on zcarblog.com. At the time we were wearing masks and I did not greet her but later reached out via e-mail:
“Good morning, I am so happy you reached out to say something. I was so sure it was you, but I could not think of your first name in the moment and did not want to say “hi” Meena and Sophia’s dad. I inherited my Dad’s 350z when he passed away 3 years ago. I love that car and am so thankful we found the Z Car Garage. My dad worked at a Nissan/Datsun car dealership in my hometown in Corvallis, Oregon. He also ran the used car portion as well. I remember one of the first cars I got practice driving before I got my driver’s license was the Datsun 210 station wagon.”
(Above) Leaving the wet and snowy northwest and bringing the Z home to their driveway in sunny California.
Not only was I excited to see Christine at the shop, her reply left me intrigued about that Nissan/Datsun dealership in Corvallis….could it be THE famous Scoville Nissan dealership? I reached out to our fellow Datsun-enthusiast and friend Michael Spreadbury who worked for famed race car driver Jack Scoville and inquired about Christine’s connection. Incredibly, Michael confirmed!
(Above) Jack Scoville images courtesy of Michael Spreadbury and Datsun.org
“Amazing — her dad would be Roy Robinson and he was a wonderful human being— we were friends indeed and it was quite the shock of when Roy passed away. Roy was a sales guy for Scoville’s for many years, but he retired before I started working for Jack— but Corvallis is a small town and Roy was in to see us at the dealership every week where I got to know him well. Roy always had Datsun/Nissan’s, and I always think of him with his spotless white Z32…After he retired he drove school busses, and took both of my kids on outings as the bus driver— whenever I would pick the kids up in the roadster from the grade school, Roy would pop out if his bus to admire the car for a few minutes. A great guy— sure miss our chats…Michael”
Michael connected the dots for me….Christine’s Dad indeed worked for Jack Scoville, the racer who gave Nissan their first national championship by winning the 1969 SCCA run offs at Daytona in a 2-liter Datsun Roadster. The Datsun Destiny got even better as I learned that both Michael and Christine attended the same high school in Corvallis.
(Above) Christine and daughter Audrey heading out for a Sunday drive. Visiting Mt. Umunhum when it first opened.
Christine recalls her Datsun story and eventual 350Z ownership:
“My dad started working at Jack Scoville’s when I was 5 years old. He had been a high school art teacher and then quit to sell motorcycles and finally ended up at Jack’s for the rest of his career. I would help out on the car lot. Back in the day, he would have to go around with a huge ring of keys and lock up all the cars for the night. I always had fun doing that job. At the time Jack’s son Jeff was still racing and took me out for a ride in his race car.
My dad had ordered the 1970 240z, but my mom had become pregnant with me and when it arrived on Jack’s lot my dad realized there was not going to be any room to carry me in the car and ended up getting a Volvo. He finally bought his first Z in 1990. He purchased the 300ZX in white with the T-top. Then in 2004 he purchased the one I have now.”
Enjoying The Ride
In addition to our race efforts and early-Datsun support, ZCG’s daily operations include routine maintenance and modification for the 2003-2008 Nissan 350Z as well as 370Z sports cars. With only has 47k on the odometer Christine came to us for a full inspection. We wanted to ensure the car would be ready for the next generation of Z car enthusiasts….Christine’s kids:
“My dad loved cars and motorcycles and cleaned them all with q-tips. When I was 4 years old I was responsible for scrubbing the wheels and tires. And as I grew older I was giving interior detailing duties with the q-tips. I have now passed those skills onto my son. It seemed an unnecessary luxury to keep my dad’s car, but he always drove it when he came to visit so he could drive Nathaniel around. Nathaniel has the best memories of long drives with my dad in that car. Nathaniel and I have kept up the tradition with long Sunday drives. He is also in the process of getting his driver’s license in the next six months and can not wait to drive it on the road.”
(Above) Top down in Christine’s Dad’s driveway with son Nathaniel on a Sunday drive.
We made a plan to perform general services plus a few little touches plan for service to make the Z more enjoyable. A very common problem on the 03-06 z33/G35 is in the valve covers; the spark plug o-ring seals will dry up over time and allow oil to leak into the well eventually compromising coil pack performance. The valve covers and and valve cover gaskets were replaced along with new spark plugs and new drive belts. All fluids were replaced and the car got received full 50k services. All this family needs is to Enjoy The Ride:
Making the Z fun to drive are a few popular performance upgrades including the JWT POP charger intake and Hotchkis sway bars front and rear:
Front T/C rod, control arm and diff bushings were replaced with new units from Whiteline. The diff bushings are the most common failure as see in previous blog posts. Christine’s Z also had a CV axle click–this occurs when the splined axle shaft gets dried up without lubrication. We took care of that and installed a new set of tires followed by a full alignment:
Icing on the cake was a dyno tune. Rob UPREV tuned picking up power everywhere in the rev range for a total of 254hp/250tq to the wheels, gains of+9hp/8tq. This is a great example of having a proper tune to maximize gains from your bolt-ons whether it is DE, Rev-up, HR or 370.
Love Cars. Love People. Love Life
Mr. K’s motto is what we Nissan/Datsun enthusiasts live by. We enjoyed working with Christine’s wonderful family and she is stoked with the Z:
“Our experience with ZCG was amazing. It was personalized to our needs. Rob is an expert in what he does and gave great suggestions based on how we want to drive the car. We were very fortunate to find ZCG through a web search. When I inherited my dad’s car and after having it here in California for about 3 years, I knew I wanted to get it serviced and keep it in tip top shape. It had never been stored outside of a garage. Once we got it to our home here in California we cleared out space for it in our garage. My dad had owned the car for 13 years before he passed away. Over the years I had driven it occasionally. Nathaniel and I kept up my dad’s Sunday drive tradition and took it out each week for a spin. After getting serviced at ZCG it runs like never before. Everything is so smooth and quiet. I don’t even know how to describe it. We all agree it purrs.”
Thank you for your support Christine and Long Live The Z!
Last week we had the pleasure of dyno tuning Eric Straw’s magnificent 1969 Datsun 2000 Roadster. Eric is a long time friend of Z Car Garage and we first dyno’d this roadster in 2012 while a few years later we enjoyed tuning his RB26DETT powered DR30 Skyline. In addition to being a talented fabricator it is clear that Eric has a penchant for white paint, red valve covers…and turbocharged Nissan powerplants!
SR20 Roadster: Version 2
After restoring his roadster with an S13 SR20DET drivetrain a decade ago, Eric started working on the next evolution with a totally revised chassis and new engine (the previous setup sold for a customer’s roadster). The new drivetrain consists of an S14 block (JE pistons, K1 rods, P12 oil pump) with a P11 VVL head (Kelford turbo cams, Tomei cam gears, Taarks VVL relocation kit, R35 coil packs) all mounted to the roadster frame using a Spriso Motorsports HD motor mount kit.
Providing boost is a GTX3071r turbo with Tial exhaust housing mounted to a Straw-fab’d custom tubular manifold with CNC 1 piece collector. On the cold side is a custom intercooler with Garrett core and custom intake manifold. It’s both pretty and functional considering the roadster’s tiny engine bay:
Backing the SR20VE-T is a 6-speed (CD009) transmission normally seen in the Nissan 350z. The SR mounts to the tranny via a Mazworx bell housing with an OS Giken Twin disk. The shining star in Eric’s craftsmanship is the chassis preparation with a heavily modified frame with tubular x-member and bolt-in reinforcements.
It would take another blog post to dive into the suspension but if you are curious about the restoration and more please check out Eric’s roadster featured in this Speedhunters article by Naveed Yousufzai HERE.
Dyno Tuning
The tuning session was conducted with driveability and longevity in mind. Outright peak power numbers were not a priority. Eric’s hometown in Salem, Oregon is where this car would be enjoyed with premium fuel and the occasional 100 octane splash. Surely more power could be extracted with E85 but Eric is 50 miles from nearest station. Rob comments on the choice of engine management for the SR20VE-T:
“When Eric contacted us about about building the SR20VVL we discussed EMS, and ZCG is a Haltech Pro Tuner. We really like how user-friendly this product is for a tuner. It’s perfect when you need to map out all of the different phases, complete control of ignition/fueling, cam control, idle air…everything to take this car you’ve dreamed of and make it drive like it came from an OEM factory.”
Rob dyno tuned the SR equipped with a Haltech 1500 Elite. Initial passes were performed on 92 octane. The plots below show without a boost controller (387hp/287tq) and with a boost controller, making 425hp/331tq to the wheels:
Of note is Nissan’s wonderful variable valve timing (VVL) at work with a very flat torque curve and incredible, spine-tingling cam changeover sound. See video below! Eric and Josh drained the fuel tank to add 100 octane for the next passes. Fueling is supplied by a custom stainless tank (Aeromotive hangler/bladder), custom stainless lines all dash 6, 1300x Injector dynamics and a Radium Fuel rail:
On 100 octane the SR20VE-T made 491hp/393tq at the wheels. That is roughly 570hp at the crank. Keep in mind this little Datsun roadster weighs 2250lbs with a hardtop and 14 gallons of fuel!
Driving Impressions
Following the dyno session we had to take the roadster out for a drive. This video shows multiple dyno passes and test drives, volume up!
Here are a few driving impressions from the three of us, enjoy!
Eric
“The car went from being an impressive car to completely coming alive and becoming a rocket ship that just keeps pulling. The VVL is like another level of performance. The power comes on very progressive and linear to give the chassis the best chance of getting as much as possible out of it. We made multiple setting to help with driving goals based on the roads and situations we are in.”
“The suspension has been a lot of work and has really paid off many times over be able to get this power to the ground and drive the car like it was intended. The rear suspension is so predictable and precise that immediately I had a lot of confidence to be able roll some power out of the corner. Rob had truly made this dream come alive and make this car so very impressive.”
Rob
“The cam control and air flow from the VVL is staggering, just really super cool. I’m not surprised…from being around the DR30 and seeing all the cars Eric and Michael Spreadbury have built over the years. This roadster continues to evolve as they continue their craft with each chapter revealing a new level like a boost controller: 5 years ago was 10lbs of boost, 2 years ago 12lbs, and now 22lbs (this roadster should only be driven on high!) Eric Straw isn’t just one man. He seems to be a mass of people to not only design an engine bay and make it work efficiently but also bolt a non-matching transmission, and then that rear end suspension….obviously one of the biggest things when modifying a 50+yr old Datsun with high power levels is trying to put it down. His engineering accounted for enough tire, brake and balance. The setup Eric built for this roadster I could not believe how we could deliver 500+hp/almost 400ftlbs of torque, and yes we were lighting off the tires but…I still felt like I was in control. We were on ice, but I felt like I was on Speedvision from back in the day of World-rallying Championship..with just a slight motion of the steering wheel I could rotate that car wherever I wanted.
Alvin
“As a passenger and long-time roadster owner…it’s not easy for me to ride shotgun in a high-powered car but I still can’t fathom how smooth it felt under intense acceleration. These are super tiny cars and to see both Eric and Rob harness it was a testament to Eric’s chassis engineering. I’ve been in other Datsuns with turbo SRs and they will pitch sideways under full throttle but this one was planted even on our rough downtown roads. Watch the video. It’s epic.”
All of us concluded and shared similar sentiments: Eric’s suspension enabled this roadster to manage all that power. When boost hits and the tires break loose it can be seemingly glide controllably with steering input…no hopping or skittering. The rear suspension consists of a hybrid rear axle built by Moser based on a Dana 44 with a Torque arm and 3-Link Watts with Ridetech coil-overs. Up front are custom Ridetech coil-overs and sway bar. R33 GTR Brembo brakes provide stopping power. The Watanabe wheels are wrapped in 225F/245(!)R tires which are massive for a stock-flared roadster body.
We had blast spending the day with Eric and tuning his roadster. We can’t praise him enough for the ingenuity and execution of his build. Eric would like to thank Julie Straw, Michael Spreadbury and Rob Fuller. More pictures in the gallery below and Enjoy The Boost Eric!
