Well, I can tell you this. The front ducts WORK. The inside pads were considerably thicker than the outside pads, cooler pads = less wear.

The rears were just recently installed but jfo the owner of this GPW just did Watkins Glen on July 5th, mybe he'll have more feedback.

I'm just the photographer.

 

I wonder if there's an easy way to empty the air along boths sides of the disc so the brakes wear evenly. How much faster did ouside pad wear? Was atleast slower than without the ducts?

 

Normally the outside pads do not wear as fast because of all of the natural air-flow so if the inside pads are wearing less than the outers you are definitely ahead of the game, right?

At least a set will last longer.

PM jfo or ask him to post his findings here.......................

 

Just finished the install. I posted a write up and how-to in the UTH section. Here's a link:

https://www.s2ki.com/forums/index.php?showtopic=304539

I'll be testing them this weekend to see how effective they are.

 

I was running a set of vents with the scoops below the pan, near the center of the car. Works well, makes routing easier. However, when I left the track at Infinion, the tall grass just ripped them off. Destroyed the duct and the lines. I'm going to try a permanent installation thru the faux ducts now.

 

Here are some pics of my front and rear ducts. We also installed 2.5" ducting using the faux inlets recently and worked it around an AEM CAI. The front ducting shown here is 3". I found all the info needed here on S2KI. They make a big difference on track days.

Front ducting.





Rear ducting.







Remove this air deflector and install the rear scoops with washers and OEM bolts.

 

You CAN run brake ducting through the faux brake ducts even with a CAI.

MY BRAKE DUCTING PICTURES WITH INFO

Don't try to use the faux ducts for a "ram air" effect to your CAI - it won't work. That area inside the bumper is in NO WAY sealed on the other side, so it does not hold pressure. All you will do is create a lot turbulence around the filter from the air flowing around it and back out the bottom of the fender liner. If anything, you'll get a bernoulli effect and rob a little horsepower from the car. Instead, open a little space just in front of the radiator to bring air into the CAI. If it's in front of the radiator, it will still be cold air and since it's not being blown in their like it would be with the faux duct, it doesn't create so much turbulence.

Here's a picture where you can see the hole I made for the CAI:
http://reverendsgarage.net/gallery/gallery...e.php?image=479

 

To The Reverend, Totally off topic, but your excuse generator is hilarious.
Cheers, Mike

 

I'm driving an AP2 though and the faux duct is alot closer to the inside of the bumper and directly in front of the filter for the CAI. In fact, it's about 1" in front so there's almost no clearance at all.

I thought about cutting a length off the intake tubing so the filter sit more toward the back. I might have enough room them and I don't think the placement would affect the intake.

 

The friction surface on the rotor is not the best position to route cold air to. The best position is near the hub area (if feasible). The centrifugal force on the rotating rotor spins air out of the centre vents like a spooling turbo prop so the intake of air is around the hub area. I haven't had a closer look at the S2000 setup but on my miata, I made a horizontal cut on each rotor backing plate towards the front of the car and bent the plate inwards to "scoop" in air towards the hub. Quite effective and no need for dryer ducts.