260DET Posted November 1, 2001 Share Posted November 1, 2001 Being of the KISS ilk, things like full front to rear undertrays on a Z seem like overkill to me. If each mod you do is based on sound, aerodynamic principles, with a specific advantage in mind, the combination should work. Designing a full length undertray seems to fall outside that concept. We know that a whaletail rear spoiler with the correct slope (30 degrees?) works, same with a modest Gurney lip. A low as possible front spoiler that restricts airflow under the car, ducted to direct air where you want it to go, works. A horizontal splitter helps that process. As someone said, rake helps too. Also consider horizontal extenders parallel to and below the sills so as to reduce air exit from under the car. One problem area is the bonnet (hood to you Murricans ) so look at doing something to it so as to reduce SMOOTH airflow over it. Vents would help there and would assist cooling, just prominent enough to spoil the airflow without creating too much extra drag. See, KISS works Quote Link to comment Share on other sites More sharing options...
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