it's a pretty penny but prova makes something like this.

Is there any scratching on the paint due to the mesh sitting up against the fender or is there still a bit of room between the mesh and the fender?

Could add some ducting, and use them to vent the front wheelhouses, and gain some downforce :)

Does the hood seal that area off when its closed? Seems like it might

Mob called PROVA make vented fender trims for brz/86 google prova brz vent , not cheap though

easy cheap venting for engine bay , unclip the black plastic piece at rear of underside of bonett on drivers side , for me anyway

hmm ill have to look into that for track days in the heat.

I want to do this and use an air speed meter, that you can find on amazon for as little as $15:

http://ecx.images-amazon.com/images/I/41OZNfgXvrL.jpg
to see how much venting it does at speed. All It should take is to put it under the hood infront of the fender vent. Start recording it with a camera with time stamp, then drive different test of: 20, 30, 40, 50, etc. mph. and log the time and speed. Then compare it to the video and see how much air if any it flows, and what your underhood temps are. Then it would only take a minute to tape over the vents, and go back out and log a base measurement to compare to, or vice versa.

A camera, and yarn tufts will work too :)

true, that would tell you if you have flow, if not how much of it.
I would like to make a panel with gills, that way the leading edge of each louver would provide a low pressure zone behind it to help suck out the heat.

I'll get some yarn and a GoPro and figure this out sometime :p. I remember seeing a CFD simulation of the car but someone pointed out that the lines were showing velocity and not pressure areas so it wasn't very useful.

cool thanks.
I figure that even if that area is high pressure, It can't be higher than the pressure in front of the radiator, so even if it isn't drawn out, the heat should get pushed out.

Flow-vis is useful also. The big guys use it. It is just messy.

http://www.racecar-engineering.com/w.../02/upw03c.jpg

hmmmm. I may have to try this.

anyone run into any real problems with this?