Z Car Garage routinely services and modifies Nissan’s R35 supercar and today we have two that visited us for transmission work.
Anthony’s R35
Anthony came to ZCG after a dealership pulled a transmission failure code on his 2009 R35 GT-R. There is a common defect in the pressure sensors inside the transmission of specific model year R35s and ZCG can provide a client a little more than a dealership simply replacing a part. If we see something that is a known issue we like to offer an upgraded solution.
After getting a quote for a substantial amount at the dealership, Anthony reached out to us, brought the car in and we confirmed the failure. Jack’s Transmissions out of Colorado is a well-known R35 transmission builder and we had them build a “hot rod” unit with upgraded pressure sensors and clutches.
We removed the transmission and sent it to Jack’s. With the upgraded pressure sensors we needed to re-program the ECU and dyno tune to make sure it performed well. Anthony’s R35 made 511hp/478tq at the wheels, enjoy the dyno run video below:
Hector’s R35
Two weeks later, Hector visited us with is R35 having the exact same transmission code issue. We removed the transmission and re-installed the rebuilt unit from Jack’s. In the exhaust area we found downpipe issues… the passenger side turbo had a really terrible repair on the turbo charger housing in an attempt to get it to seal:
We removed all of that and repaired it correctly. With the exhaust off we were able to replace the outlet gaskets, all of the turbo studs and nuts plus a missing exhaust bracket. All exhaust system issues were corrected.
We also dyno tuned Hector’s R35 after the fresh transmission was installed and it made 501hp/494tq to the wheels. Enjoy the dyno video below:
Both GT-Rs are making great power and driving at full power with beautifully shifting transmissions. This is another great example of why independent specialty shops exist…we take over when the dealership says just replace it with a stock part…Long Live Boost and Long Live the R35!
The Specialty-Z intake kit replaces the restrictive factory airbox:
AMS downpipes and midpipe:
Dyno Tuning
Nathan signed on for ECUTEK tuning including his own ECUTEK Bluetooth dongle to check codes and monitor vitals. With Rob’s dyno tuning the GT-R made 553hp/545tq at the wheels, gains of +53hp/82tq:
Enjoy the dyno videos below:
Nathan was super excited with the results and fueling upgrades are up next. Long Live Boost and Long Live the GT-R!
Filed under: Maintenance,R35
by Alvin G @ 4:35 pm on June 6, 2023
Bruno is the owner of this 2015 R35 GT-R and he visited Z Car Garage on referral from the online GT-R forum. We’ve been receiving a steady stream of R35 owners since Boardwalk Nissan’s closure and it makes us happy as we love both vintage and late model Nissans.
This GT-R is a limited-production 45th Anniversary Gold Edition featuring a special paint color called Silica Brass, the same hue as the 2001 (R34) Skyline GT-R M-Spec. Available only in the Premium Edition trim level, the R35 included a special emblem on the lower part of the interior center cluster and an exclusive model plate number in the engine compartment. Bruno’s car represents just 1 of 27 in the US and 1 of 79 worldwide, a rare R35 indeed!
R35 GT-R Services at ZCG
Bruno had 42k miles on the odometer and it was time to service the brakes. We installed DBA front replacement rotors with Hawk HPS pads f/r and bled the brakes with Stoptech fluid. Rotor/pad removal and cleaning:
New rotors/pads installed:
We also performed a 45k-mile service, replacing all fluids/filters and Nissan drive belt. At Z Car Garage we not only build the wildest vintage cars, we also do anything service related. We often get calls with folks assuming we don’t want to do something simple…ZCG handles the easiest things like oil changes or ensuring you stay on top of your maintenance…to all all-out war builds. Please let us know if we can help you with your R35, 370z, 350z, G37, G35, Q60 or Z32. It was great meeting your Bruno and we loved working on your Gold edition R35. More photos in the gallery below!
At Z Car Garage we are fortunate to be a part of our customer’s sports car journeys. Derek Y is a long-time customer and we worked on his 2005 Infiniti G35. Three years passed by and he visited us with his latest Nissan, this 2015 GT-R. The R35 visited ZCG with only 11k miles and received a host of power upgrades from AMS, EcuTek, SpecialtyZ, Turbosmart and more:
Here are the SpecialtyZ 3″ intakes and AMS front-mount intercooler being installed:
More engine bay work including the AMS crankcase breather setup, ID 1300cc injectors (plus DW fuel pump upgrade), Turbosmart BOVs and a SpecialtyZ Flex-Fuel kit:
AMS crankcase breather being plumbed:
Stock vs Turbosmart BOV:
On the lift, AMS cat-less downpipes are installed:
At first glance it is difficult to catch all of the power upgrades in the engine bay, Stock (L) vs Modified (R)
Derek also needed new tires so we mounted fresh Michelin Pilot Sport4S sized 245/40/20 and 285/35/ 20.
Dyno Tuning
Rob dyno tuned the GT-R using an EcuTek flash and Derek also received a USB dongle for datalogging. Baseline power was 495hp/446tq with final numbers of 612hp/604tq to the wheels on E85:
A few plots showing the tuning session: Baseline to 91 octane tune with gains of 65hp/93tq (Left), and the final E85 tune for even more gains of 52hp/51tq (Right):
Video of the R35 on the ZCG dyno:
Thanks for letting us work on your GT-R Derek and enjoy the 100+hp boost!
A dealership is great to support your new Nissan but here is an example of how independent shops like ZCG that specialize in the brand are critical to maintenance, longevity and performance of your vehicle.
Why Independent Shops are Important!
James bought his 2015 Nissan GT-R secondhand from a dealership and started to have some issues where the car would go into limp-mode. He took it to a Nissan dealership and they found some kind of issue underneath the timing cover that was resulting in a limp-mode approaching 3000rpm. A temporary “fix” resolved the behavior but again it was going into limp mode. Back it went to Nissan where they couldn’t get data off the OB-II connector.
Nissan tells James that the car might have an ECU tune so he should find someone in the Bay Area to diagnose/asses if it has an aftermarket ECU (ie Cobb Accessport, EcuTek flash, etc). James visited ZCG and Rob flashed the GT-R with EcuTek software, enabling data logging. Rob noticed that the cylinder bank 1 intake cam was not advancing. Further investigation revealed that when the dealership installed the front cover and intake cam solenoids and o-ring failure was spotted. This o-ring eventually failed, not allowing sufficient oil pressure to advance the intake cam on bank 1, thus putting car into limp mode.
We installed a new o-ring and James was on his way. This is a great example of how independent/specialty shops have the expertise and attention to detail to keep your Nissan on the road!
