Quote:
Originally Posted by industrial
Does anyone have more pictures of the TRD Griffon underbody work? I'd like to try and replicate their work since it's probably the most extensively tested stuff for our cars so far.
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Race cars and street cars are very different. The TRD Griffon car was BUILT to go around Tsukuba. Race cars are use flat bottoms for aero; however, I don't see a flat bottom working well with a daily driver that's sitting at lights and traffic. Why? Flat bottoms generally have issues with cooling that require smart engineering to fix. You introduce one variable, it changes another. @
Turn in Concepts can attest to this: they put a flat bottom belly pan on their race car several years ago and subsequently ran into trouble with transmission and diff overheating during races because these parts didn't get enough airflow presumably. A street car might not car get as hot, but it certainly has even less of a chance to have effective cooling.
As far as the diffuser goes, there's been talk of the stock muffler aiding in reducing lift at the rear (posters and I believe someone tracked down an official comment). I didn't get a chance to drive the car much before switching out the muffler for a different unit, but it seems to me that the rear of the car has become less stable at highway speeds. It could to winter tires and a bad headwind, but that's what I feel. I'd like to see some definitive results on this.