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At the opposite end of the import tuner market is the FXMD time attack NSX. This car has been through a number of incarnations and this one is sporting a new a cleaner aero package. I’m guessing the coolant radiator is sitting in the opening of the hood with a fan on it.
The front splitter is a beefy looking chunk of carbon fiber along with the end plates. The front end bodywork has a nice flat vertical surface where it meets the front splitter. This should provide a good amount of downforce to be generated. The overall front end bodywork is very smooth with none of the smaller openings, recesses, and airflow disrupting lights of the stock body work; it should have relatively low drag.
The rear quarter of the car is likewise quite smooth.
The lower rear bodywork consisting of the rear diffuser and the elements behind the rear tires which remind me of a LeMans prototype car more so than a typical GT touring car. The rear decklid has a spoiler to work in conjunction with the diffuser and dual element rear wing. Looking at the support structure for the rear diffuser, I think it’s safe to say the diffuser is solidly mounted.
Peeking underneath the car a bit, it’s apparent the diffuser extends quite a bit forward. Also, the angle of the diffuser is quite shallow which should help keep the airflow attached to the surface for reduced drag and improved downforce generation; too steep of an angle would cause the airflow to become detached generating turbulence that would in turn increase drag and reduce the effectiveness of the diffuser in generating downforce.
Providing the boost is a big Borg Warner EFR with divided turbine housing. Look closely at the single Turbosmart wastegate; the wastegate flows from each side of the turbine housing are merged to the single wastegate. As long as a divider wall keeps the wastegate flows separated all the way up to the wastegate valve surface, the twin-scroll effect is maintained. Look closely at the outlet pipe of the turbine housing; it is also a narrow angle diffuser to maximize turbine performance versus a more drastic expansion to the larger diameter exhaust pipe. Do you think the mounting of the diffuser is strong enough? I think so.
