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!

 

 

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.

 

Happy to see Courtney and her 1973 240z.

 

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.

 

Glenn’s sexy FD RX-7:

 

Two black NSXs

 

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!

 

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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.

GO GA 510!

 

  

The 2019 Solvang Datsun Roadster show took place on April 27. Now in its 32nd year, this event continues a tradition of uniting owners from all parts of the world in a little town just outside of Santa Barbara. There is something for everyone here: shopping, food, wine-tasting, outdoor activities, and in the last weekend of April an epic gathering of Datsuns!

 

This year I did not bring my roadster but I was able to experience it with my wife and three children (now all walking):

 
We keep returning to Solvang year after year to see the latest roadster builds, meet new owners and catch up with old friends……and it was a fantastic show with perfect weather and close to 100 Datsuns on First Street in downtown Solvang:

Highlights from the Show

On to the cars! Here are some highlights from the day…starting with the “Holy Grail” of Datsun Roadsters: The 1967 2000! This year there were only a handful of these rare (less than a 1000) models. Some of these cars are considered the “cream of the crop” with full restorations or OEM levels of detail like Kurt’s Sora Blue #520:

  

Interestingly, all of the ’67 2000 models present possessed the fabeled “rivet in the C” on their valve covers. Different body colors as well! Gary Vigil’s SRL #126 was still in the process of being completed, looking brilliant in Beige Grey Metallic:

    

Arnold’s SRL 485:

  

The sole “Thunder Black” ’67 SRL:

 

Stock is Good

Solvang showcases everything from pristine to highly modified examples of roadsters. These two examples are exemplary of the “high-windshield” models. John Baker’s ’69 2000: several years of intense restoration by John has resulted in one stunning, concours-level 2000. Finished in Spanish Red with plenty of engine bay details to drool over. Best part is that it is driven, even with the Bias-ply tires!

     

Mike Ramirez’s ’68 1600 was stored for 32 years before a full restoration in 2014…it is pristine:

 

There were several early 1600s with chrome-ringed gauges and classy red interiors. Alvin’s ’65 SPL was originally imported to the US by a Naval officer and he found it in a barn with 32k original miles. His goal is to take it back to Japan for a springtime tour!

 

Engine Swaps

Like the 510 and Z cars, the Datsun Roadster chassis can accept many engine swaps and this year the show-stopper was Eric Straw’s 1969 SRL.
We have known Eric for many years and he is a talented fabricator with a penchant for high-powered Datsuns. ZCG tuned his RB26-powered Nissan DR30 Skyline and plan on tuning this Haltech-managed SR22VET beast of a roadster.

 

Backing the SR22VET is a Nissan 350z 6-speed transmission, but there are so many details to be found at the surface like the factory OEM(!) Hardtop, 225 front/245 rear tires, Brembo calipers, Lotus Elise seats and more.

  

Eric’s fabrication skills are really displayed in this chassis with full coil-over suspension and a Watts-linkage. With guidance from Michael Spreadbury of Spriso Motorsports, the level of chassis development is mind-boggling:

  

More pictures in the gallery, but this masterpiece deserves its own feature!

JDM  Feel

Two cars that I really like have a special “JDM” feel to them. Greg’s ‘1968 2000 finished in Gray sitting on 14″ Watanabe wheels looked just right:

 

Mike’s 1967.5 SPL sports 15″ Watts, a full solex-equipped U20 drivetrain, roll bar, SRL gauges and rare EMPI steering wheel:

 

A Break for Wine

A few roadster owners proudly offered their own vintage wine creations alongside their cars. Al’s SPL graces the label of his wine:

Vanity plates

When Sidewall is Good

This ’70 SRL not only had one of my favorite white/red color combos, the wheel/tire choice was spot on. Beefy sidewalls on the AR Libras and a nice stance looked great:

 

The 3-Seater: Datsun 1500s

There were only 2, three-seater 1500 roadsters. Raymond Lim’s 1963 1500 was in amazing condition considering its age. This single-carb, three-seater was remarkably preserved. Best part was watching Ray’s son show off the roadster to everyone! This is why I love the Solvang Show.

 

 

Even older than the 1500s were the SPL212s owned by Jeff Silvey:

People

People. It’s what makes the Solvang Datsun Roadster Show so much fun. Datsun folks in general are cool people and they came from all parts of the world:

 

The Beast Within

Corey’s ’66 SPL had a mighty stroked 1600 engine. Final displacement is 2.3L(!) courtesy of parts from Datsun-specialist Lou Mondello of Australia. We look forward to dyno-tuning this quad-motorcycle carb’d monster soon:

  

Non-roadsters

Don’t have a roadster but want to park and enjoy the show? The Solvang show also welcomes Japanese classics that are not roadsters. Lots of cool trucks, Z-cars and 510s joined in on the fun. Brian K drove and displayed his Nissan Patrol. He is also the man behind our Z Car Garage CV Axles. When he’s not enjoying Datsuns, Brian owns/operates KaD Models machine shop in Berkeley, CA making various parts for our cars as well.

  

Going the Distance

The Solvang Show draws roadster owners from all over the US, and world! We can always count on Jim and Susan to make the trek from Mexico in their ’70 SRL with matching trailer:

 

Adrian Christian made the long journey from New York in his ’70 SRL:

  

This is the actual car from Nissan’s multi-million dollar Datsun Heritage advertising campaign in the late 90’s.  Check it out in this Super Bowl Ad – “The Dream Garage”.

Family Affair

Ted Heaton drove his three roadsters down from Bellvue, Washington. He had help from his son and grandson!

   

We love this event and hope you have enjoyed our coverage of the 2019 Solvang Datsun Roadster Show. Big thanks to the organizer Harlan Katz and SoCal crew for hosting!  Please visit our picture gallery below:
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On Sunday we Enjoyed The Ride with several Datsuns on a local Fun Run organized by fresh Z car owner, Naveed Y. I drove my 1967.5 Datsun Roadster:

 

Rob drove his Datsun 510:

 

Lou drove his 1970 Series 1 240z:

 

Ty and Christine also joined us in their 991 Porsche:

 

Naveed has a cool collection of sports cars including an Nissan R32 Skyline and recently acquired this Fairlady Z:

He has been driving this S30 religiously and organized the day’s fun run, starting in Cupertino and heading up HWY 9. It was a gorgeous day to be driving Datsuns!

  

We stopped at a vista point just after the 9/35 junction and headed to Alice’s:

 

From Alice’s we drove down 84 and to the coast via Pescadero Rd. Though foggy it was quite warm and we had fun staging the cars for photos.

Naveed captured some great shots!

   

Naveed’s RHD S30 sported a triple-Mikuni carb’d L20A with a full Fujitsubo exhaust. Stay tuned as we report on the dyno performance of the Fujitsubo exhaust system on our shop S30:

 

Naveed’s Z sounded wonderful echoing off the forest-lined roads. Listen to the exhaust and watch a short sample of the fun run in the video below.

We had a blast, thanks for inviting us Naveed!

Enjoy more pictures from Naveed and us in the gallery below:

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