On Sunday I joined a group of vintage sedans for the Super Drive event in Pacifica, CA. Now in its 16th year, SuperDrive Sunday is a single day road rally open to any and all vintage vehicles. Our friend Geoff assembled a group of classic cars I couldn’t help resist calling the “B-sedan Squad”. These models were competing in the heated vintage race groups of the late 60’s/70’s: I drove Rob Fuller’s 1971 Datsun 510, Geoff in his Inka BMW 2002, Cameron in a BMW Neue Klasse 1800, Ramon and Chris in their Alfa Romeo Berlina 1750/2000, and Diego in the E30. We left San Jose headed to Sea Bowl via 280N:
Rob’s Datsun 510 with S13 SR20DET sporting Go-Green paint and 14″ Panasports:
Euro Vibes
The scene at the pre-rally gathering was filled with cool cars, mostly Euro/Italian. I’m always on the hunt for Japanese metal and spotted an S30, ITR and Mitsubishi 3000GT. I was the lone Datsun 510.
There were at least 9 Alfa Romeo Berlina/Giulia sedans of all years. These are very pretty, capable vintage saloons. Many Alfa GTVs and Giulia Spiders:
More cool cars, some I’ve never seen before. like this Fiat Abarth 750 “Double-Bubble”:
A few familiar favorites:
Rad wheels abound too!
More pictures in the gallery, enjoy this short video:
Let’s Drive!
The group left Sea Bowl and headed south on scenic HWY1 with great weather and good company. Geoff and I split off from HWY 1 for a blast up Tunitas up to 35/Skyline. This was a fun stretch and I had to focus and keep the 510’s boost in check through the twisty bits!
From 35 we made a quick stop at Alice’s Restaurant. It was pleasant to see everyone enjoying their cars. We even ran into our friends like Naveed and met Alex, organizer of the Berkeley Cars and Coffee.
Alex (in his Berlina) joined myself, Chris and Geoff for a stretch down HWy 9 to Boulder Creek.
From Boulder Creek we ended the trip with a drive to 17 via Bear Creek Rd. This is a very technical section, again mostly free of traffic so we could have fun! All had a great time and I highly recommend getting out next Super Bowl Sunday to Super Drive! #DOITINADATSUN
Z Car Garage wishes you a Happy 5/10 Day and Happy Mother’s Day! We enjoyed driving our 1971 Datsun 510s on a beautiful day in San Jose. Turbo6, our 80’s revival, is back on the road and running great with its turbocharged 6-cylinder L-series. Look for a full report soon:
Rob, Meghan and Tank were in the SR20DET-powered 510:
A few photo-ops in Downtown San Jose:
We got the Bay Area Datsun Dealers race 510 out too!
Enjoy The Boost in this video of the 510s in action. We hope you can Do It In A Datsun today too!
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!
Filed under: 240z,Events
by Alvin G @ 6:51 pm on January 8, 2020
Last Sunday we attended the DrivingWhileAwesome (DWA) Cars & Coffee event in Santa Cruz, CA. Our group of friends left from San Jose and headed up HWY 17 on a chilly morning with myself, Rob and Meghan in our Datsun Roadsters, Geoff in his BMW 2002 and Ty in the 991 Porsche:
We were stoked to see Rob’s Datsun 2000 on the road with refreshed Mikuni-Solex carbs and it sounded wonderful. Full report soon!
In Search of J-Tin
The venue has moved since we last caught the DWA gathering in Davenport. Sunday’s event was held at the new location across from the Old Wrigley Building in Santa Cruz. By 9am the parking lot filled rapidly with a great diversity in marque and era.
Although attendance was mostly Euro/Italian, many Japanese gems showed up. Let’s start with the Nissan/Datsun showing. Ray’s Hakosuka Skyline was a pleasant surprise.
The last time we saw Ray was at the Golden Week Kyusha Festival where I learned that this Hako was from our friends at JDM Legends! We look forward to seeing Ray for some upgrades on this already stunning Skyline.
VQ-powered S30, R32 Skyline, S14 240sx and Infiniti Q45:
More J-tin goodness! Lloyd’s Corolla was a crowd favorite (mine as well) sporting a 4AGE fed by ITBs, Levin front end and perfect Volk TE37s. This AE86 coupe complements his F20C powered AE86 Hatch.
Making our Datsun Roadsters look big was this Honda TN7 “Kei” pickup:
Euro Classics
Yearning for Porsche’s? Or something a bit less “mainstream”? DWA CnC did not disappoint.
Two Panteras:
Geoff’s 2002 and an E28 M5:
Pretty Alfas:
VWs: Scirocco and a LSx-swapped Caddy!
Austin Healey:
Porsche Galore: 914s, 944s, swb 911s, 991s
American classics as well! Here is a Plymouth Belvedere and International Harvester Travelall:
DWA CnC was definitely my kind of cars and coffee. It’s a great venue with amazing driving roads nearby and the cars were so diverse. We highly recommend checking it out! Thanks to the DWA crew for hosting. If you haven’t already, listen to their podcast and make sure you give them a follow on Instagram.
More pictures in the gallery below!
On this #ThrowbackThursday we were happy to see this discovery from our friends at Classic Motorsports Magazine. They found these archived photos from the NOPI Nationals in 1997 and pictured is Rob Fuller auto-crossing his 1971 Datsun 510!
Almost a decade later and to this day Rob has not changed much. He still races Datsuns and here he is in the very same 510 auto-crossing at the Mt. Shasta All-Datsun Meet.
