Mike R sent us his 1971 Datsun 240Z from North Carolina for mechanical sorting, Z Car Garage-style. Our Z Car Garage CV Axles, Z Car Garage Big-Brakes, Z Car Garage KW V3 coil-overs and CD009a Six-Speed transmission transformed this 919 Sunshine Yellow S30.
ROB: We’ve been very fortunate to work with many clients from the East Coast. One of them is Mike Rogers, you might remember a few years back we did a really early 1970 Datsun 240Z for him and it turned out wonderful:
He purchased an RB25-powered 240Z and called us asking ‘hey do you think we could kinda do what you guys typically do to these cars?’ and I said absolutely. The Z was shipped to San Jose, Ca and we installed our ZCG Big-Brakes (Stoptech), our private label KW V3 coil-over setup and ZCG CV Axles. We just did as much as possible to correct things with the install of his RB25 and it was a fun project.
Drivetrain
ROB: The RB25DET engine swap was already installed by a previous owner. We left the engine bay aesthetics as is and focused on getting it running well. The goal was to make it as close to a Z Car Garage-style RBZ chassis-wise with decent power. We did not turn it up, as Mike is not about big power with this one.
CD009a Six Speed Transmission
A game changer for this RB Z car was to replace the RB five-speed and install a new CD009a Six-speed speed. It works so well together and this transmission is definitely our go-to choice whether you have a powerful or just-for-fun street car S30. We really enjoying doing these swaps behind L-series engines. You might remember our first application of Austin Hoke’s custom 6-speed adapter kit on the OS Giken TC24B1Z-powered 240z, Trevor’s 280Z and Frank’s 240Z:
Using the 6-speed conversion kit from Hoke Performance we installed a new CD009a transmission from the 2003-2008 Z33 behind the RB25DET in Mike’s 240Z:
Here is the brand-new transmission from Nissan being unboxed. Hard to tell from the interior once it is installed:
Driveline Upgrades
We built Mike an R180 rear diff with 3.54 OS Giken LSD, a perfect upgrade for anyone doing spirited driving. All done in-house with new bearings/hardware by our very own Joshua Corwin:
Dyno Tuning
Ron dyno tuned the Z, making 261hp/227tq at the wheels. Enjoy the RB25 sounds in the video below!
Z Car Garage Big-Brakes
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
Big-Brake Kits Available For DIY Install!
Z Car Garage is proud to offer our Big-Brake Kit to Z-Car owners that want to perform the installation themselves (sorry this is NLA). We can ship worldwide and each kit contains everything needed with a comprehensive installation guide. Blog posts documenting all of our customers running the ZCG Big-Brakes can be found HERE. Mike’s RB25 240Z ZCG Big-Brake installation below:
Panasport Wheels
Our ZCG Big-Brakes also look great behind the new 16×7 Panasport wheels in our offset allowing us to run 225/50/16 tires. These were a welcome replacement for the Rota wheels on the car. The Z was fully aligned afterwards:
Suspension
Mike’s chassis was treated to a full suspension rebuild with new parts from Techno Toy Tuning. T3 finishes the suspension in our signature color and we really appreciate Gabriel and his staff. They make some of the best suspension parts out there for Z cars.
New parts included the T3 adjustable T/C rods, T3 rear control arms, T3 front/rear strut tower bars, new ball joints, new front bushings, all new bearings and seals and ST sway bars. Mike wanted a fantastic driver that was worry-free. We replaced all of the hydraulics and front/rear suspension assemblies to match the new driveline. All suspension was either zinc’d or powdercoated. Before/after show below:
Front Suspension refresh with T/C rod, crossmember and steering rack detail before/after:
Rear end with T3 lower control arms and ST Sway bar, before/after:
Z Car Garage CV Axles
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 250 CV axle kits on customer cars and we are stoked with all of the positive feedback.
ZCG CV Axles installed on Mike’s 240Z shown below with more pictures in the gallery:
KW x Z Car Garage Coil-over Suspension
Our Z Car Garage KW V3 Suspension is available in limited quantities. These coil-overs offer game-changing performance suitable for street, track and daily-driving for your S30 Datsun Z car.
View the suspension installed on Sung Kang’s RB26DETT-powered Datsun 240Z, Larry Chen’s SR20DET-Powered Datsun 240Z, James’ turbocharged L-series powered Datsun 240Z, Mrs. Butters, our Series 1 shop 240z and more client cars in the photos below. For more information on ordering and pricing please contact RobATzcargarage.com.
We installed the KWs on Mike’s RB25 240Z:
Details
The little things are what we excel at. We handled some weatherstripping around the cabin and installed a SpeedHut speedometer box. More photos in the gallery below.
Enjoying The Ride
We received some flattering feedback from Mike after the Z was shipped back to him in NC:
MIKE: Hey my friend, I drove the RB25 to Cars and Coffee Saturday morning. Best damn 240 I’ve ever driven. Absolutely love that car. Gonna be my own “Mrs. Buttersworth” Gonna call it “Mrs. Lemonade” in your honor. Great job!!!
Thanks for your support Mike and Long Live The Z!
The Last Stop in Braking for your Z
Z Car Garage Big Brakes are one of the best systems available for your S30 Z Car with over 200 kits sold worldwide and unanimous positive feedback. See our ZCG Big-Brakes on client cars HERE and enjoy the photos below:
