APS TT Tune on Automatic 350Z

Another local customer of ours brought us his automatic Rev-up 350Z with the APS twin turbo kit already installed. Although he had previously been using the Haltech EMS, he gave us a visit for our tuning expertise.

With this being a car that gets daily driven for most of the year, we wanted to clean up any drivability issues and make as much reliable power as possible on our Dyno Dynamics. Despite using the automatic transmission, a TransGo valve body upgrade kit had been installed to help with shifting at these power levels.

This particular car utilized the newest public version of the Haltech software, which we have been privately testing on shop cars in previous weeks. Despite some initial hurdles from the new software, specific only to automatic models, our unmatched Haltech experience allowed us to produce nearly 390 whp between 9-10 psi. Wheel torque measured near a constant 350 throughout the entire powerband.

Between this much improved flat torque curve and constant power increase with the automatic transmission, this is one great daily driver. The fresh looking Daytona Blue paint is complemented nicely by a new Alliance big brake kit behind the popular Volk SF-Winning wheels. It’s great when the looks match the impressive power.

Infiniti G35 + APS Twin Turbos + Stock VQ35DE = 402whp

Over the New Years holiday we opened the doors to a special out-of-town Infiniti owner. After a 600 mile drive on a base map, the car made it to our facility for a tune on the newly installed Haltech Platinum 350Z EMS. The car was outfitted with the new APS Twin Turbo tuner kit for G35 and an APS Tall Boy Intake Plenum. Props to the owner for installing the turbo kit and other mods himself, very nice work! The APS tuner kit comes without fuel and engine management, so the customer installed Deatschwerks 600cc injectors, a Walbro fuel pump, and of course, the Haltech Platinum 350Z plug and play standalone with boost control solenoid.

After a quick change to NGK Iridium 1-step colder spark plugs with proper gap, Hal was able to quickly achieve the goal of ~400whp on our Dyno Dynamics dynamometer at 10psi. As seen in the dyno chart below, the VQ35DE spools the APS twin turbo setup quickly and gives this G35 a nice strong powerband. The G35 produces more than 300ft/lb of torque from 2900rpm to redline.