Flow Through Front Fender Liners

[jaykay]

Looks great if it fits up !

[woodsman]

I think the 997 GT3 had vents behind the rads allowing air to flow through and into the wheelwell. Remember air going through the body creates drag reducing efficiency, especially over 50 MPH. Venting in and through the frunk seems crazy... If the car's not running hot, why mess with the aero? If it's lifting at speed or you're cooking your brakes then something needs changed. I had a Civic SI that I lowered and at around 80 MPH it actually OVERsteered because of it. If you occasionally get near the limit over 50 MPH changes to the aero can become REAL!

[Topless]

The 997 GT3 Cup car has very different airflow routing than Eric's modded 986. It would be interesting to see the different designs tested as airflow often moves in unpredictable ways. A lot of wind gets generated by tire rotation so the duct location is pretty critical to improve cooling.

[jaykay]

Yes...exactly this is why I had envisioned horizontal "liner louvers" oriented/exhausted downwards so as to interact cohesively with the wheel rotation air...maybe there would even be a coanda effect to be had there! I would image that exhausting downward out the wheel well couldn't be any worse than in front of the wheel

This arrangement would prevent undue damage debris ingress to the back of the rads.....so I was curious as to what had been done for real on let's say a cup car. There's no easy way to test effectiveness without proper resources...so