Tuned In

Field Report: This 28L Airbox Setup Is GENIUS - Nismo's GT300 Z33.

August 30, 2023 High Performance Academy
Tuned In
Field Report: This 28L Airbox Setup Is GENIUS - Nismo's GT300 Z33.
Show Notes

The legendary title-winning GT300 350Z Nissan hits the Time Attack scene. Get some insight into a factory race car setup including BoP restrictions & more in this [TECH TOUR].

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Restricted to 300hp for class rules, this VQ35DE powered JGTC (Now Super GT) Z33 350z interesting sees up to 480hp due to some clever intake work by Nismo according to owner and driver Dale Malone of DM Motorsport with a maximum output of 580hp being a potential, but only for a short period of time mainly due to harmonics being an issue at high RPM.

The car runs an older Pectel Cosworth electronics package with Windows 95 still being the required OS to run the tuning software. While it's great to keep things original, complications like this are one of the reasons why we see many people update the electronics in older racing platforms in order to give more flexibility and even increase reliability with the modern crop of ECU's and sensors we have available nowadays.

One of the interesting aspects of this car is the 28l intake and airbox which allowed for an extra boost of power coming out of the corners before the intake restrictors, the size of which was dictated by the circuit back when it was a factory race car with teams having a range of engine maps to suit.

Common to motorsport applications a Hewland split shaft transmission which allows for individual gear ratio adjustment and a PI Research data logging system is in place however other than the general engine inputs for the World Time Attack Challenge, shock potentiometers are the only added extra for the moment along with a GT500 aero setup, GT500 being a less restrictive class in the same series at the time.