[Dr K]

Interesting about the brake cooling. On my race car, my brake cooling directed the air to the center of the rotor and had a plate to screw to the other side so all the cooling would need to go through the vanes. Had the vanes been directed to "scoop the air in" that would have been counter-productive, as Steve noted above. Fortunately, on those mid-80's rotors the vanes seemed to go straight in, so direction did not matter.

[Vicegrip]

None scoop the air in from the outer edge. The idea is the air is pulled in from the center and is slung out at the outer edge. It is the air being slung out via its own mass that causes this flow. Think rock on a string being spun. As the air near the outer edge is thrown out it causes a partial vacuum and pulls more air into the center. Curved vanes are considered a bit more efficient than flat ones.

In HVAC we used curved axial fans when we know the air is going to be reasonably clean of large chunks of stuff but still not pure clean air. Think dust collectors and the like. If not we use dead flat plates all set with one edge to the axle so stuff simply slings off.

[BillC]

A few years ago, a friend was having bad front-brake-overheating problems at the track after installing new front rotors. As he was getting ready to bleed the front brakes again, I noticed that the vanes in his rotors were pointing forward instead of backward. Turns out he had installed them on wrong sides (right on left, and vice-versa). Once he swapped them to the correct sides, his overheating problems went away.

[Hunter]

Good thing to keep in mind.

[N0tt0N]

Fixed yesterday.

[88carrera]

What make a model is your lift? It looks compact and sturdy

[N0tt0N]

It is an EZCarLift. Very convenient, mobile, and track friendly.

[N0tt0N]

After two days at Shenandoah this past weekend I can report that both Tina and I loved the Pagid Yellows. So much so we didn't notice them. We did have the expected spike in temps from running new pads on new rotors that cooked the SRF but they were fine again after a bleed. They don't have the brick wall stopping power of the PFC08s but they are so linear you don't have to spend any brain power try to find the release for trailbraking - you just do it. Very happy.

[BikePump]

Originally Posted by N0tt0N

After two days at Shenandoah this past weekend I can report that both Tina and I loved the Pagid Yellows. So much so we didn't notice them. We did have the expected spike in temps from running new pads on new rotors that cooked the SRF but they were fine again after a bleed. They don't have the brick wall stopping power of the PFC08s but they are so linear you don't have to spend any brain power try to find the release for trailbraking - you just do it. Very happy.

Glad you found a combo you like there is so much here that is down to personal preference as well. I tried out the Ferodo DS1.11s for the first time this weekend (front and rear) - these are the same pads that Porsche is running on the RSR. Was really happy with how much firmer they made the brake pedal - easy to modulate.