Anyone here using cooling ducts with the Euro rotors? I recently changed my rotors from the standard type to Euro (Floating) rotors. Since there are now slots opening between the friction surface and the hub, will the pressure air have the same effect as the normal rotors? Where the air is aiming now is also more on to the hub itself, not directly to the rotor vents. I was wondering if this setup is still workable.

I think you are suppose to direct air to the hub? As the rotor turn it will force air out from the center of the rotor out, therefore you want the cool air to be aimed at the center, or the hub, of a floating rotor?

I don't race, but I might be inclined to try ducting the air to the brake caliper instead of the rotor if I was using stock calipers. What have people here found to be the bigger problem -- overheated rotors or boiling fluid?

Philip Bradley

I don't race, but I might be inclined to try ducting the air to the brake caliper instead of the rotor if I was using stock calipers. What have people here found to be the bigger problem -- overheated rotors or boiling fluid?

Philip Bradley

Phil... the aim is to direct the air to the rotor, not the caliper...... that's the whole point of the braking system. Heat absorption into the rotor, then dissipation through the vanes. By aiming the air at the caliper, you are not gaining anything over routing it to the hub.

Anyone here using cooling ducts with the Euro rotors? I recently changed my rotors from the standard type to Euro (Floating) rotors. Since there are now slots opening between the friction surface and the hub, will the pressure air have the same effect as the normal rotors? Where the air is aiming now is also more on to the hub itself, not directly to the rotor vents. I was wondering if this setup is still workable.

You want to aim the air to the center of the rotor. That way you let the vents in the rotor do their job with extra air. The ducts will still work just fine with the euro rotors.

I remember seeing on Turner's website some sway bar end links that had a foil to re-direct air at the rotors. I can't seem to find the end links any more, so maybe they didn't sell/work well.

Anyone here using cooling ducts with the Euro rotors? I recently changed my rotors from the standard type to Euro (Floating) rotors. Since there are now slots opening between the friction surface and the hub, will the pressure air have the same effect as the normal rotors? Where the air is aiming now is also more on to the hub itself, not directly to the rotor vents. I was wondering if this setup is still workable.

I have used the Euro rotors and a proper ducting kit for 2100 track miles. The car is not driven on the street. The rotors are still very serviceable and although they have cracks (as all do ) the cracks are still well away from the outside. I used HT 10 pads most of that time.

Chris

Comments above look good. I have used Euro Rotor with ducting to backing plate (which is at the hub). Make sure your vents are the correct way, I have seen many times that installers even pros have installed them incorrect, maybe they're not paying attention or maybe they don't know. Air must move out from the center. If you look down at the rotor from above the vanes should be aimed to the back of the car.

I notice you are in Canada. If outside air is cool. You may not need the ducting. You will hear differing opinions about what outside air temps to begin running the ducting because air temp, your style and length of straights will effect when you should run and when not.

If you want to read some negative information on the Euro rotors, check out the Stop Tech website FAQ section. They recommend, probably only partially for self serving reasons, true two piece floating rotors. I believe an aftermarket supplier is selling two piece rotor kits for stock calipers.

Philip Bradley

Yes. Performance Friction is making a Sweet rotor for the E36 fronts. I run it and I am very happy with the results.