Topic: ADR wheels

[Gentleman Jack]

Go-N-Def,

These get my vote for how you spend my tax dollars.  Copied this from a post of DBG's.

GJ

[patrick.schmidt]

I have the ADRs...19 inch...love them....P

[Gentleman Jack]

Question for the really smart folks:

Why don't wheels use the same principal as a rotor / fan blade to help remove heat from brakes?  What I mean to ask is, is is possible to design a wheel that will suck air thru itself from under the car to outside of it, in an effort to get cooler air to pass over the brakes to keep them cooler?  It would not take that much air movement to make a difference I don't think.  Would there be a downside to the air movement?

Sorry for the hijack but these wheels remind me of a high speed rotor...

GJ

[Gentleman Jack]

I have the ADRs...19 inch...love them....P

\


PS: Great looking car!

GJ

[Rogue]

Question for the really smart folks:

Why don't wheels use the same principal as a rotor / fan blade to help remove heat from brakes?  What I mean to ask is, is is possible to design a wheel that will suck air thru itself from under the car to outside of it, in an effort to get cooler air to pass over the brakes to keep them cooler?  It would not take that much air movement to make a difference I don't think.  Would there be a downside to the air movement?

Sorry for the hijack but these wheels remind me of a high speed rotor...

GJ

IIRC, it was tried during the 70's or 80's by some of of the Can-Am teams. For whatever reason it was abandoned. My guess would be "cavitation" at higher wheels speeds - but that's truly a WAG. Anyone else out there with a better memory on this than me?

[LiquidPT]

Question for the really smart folks:

Why don't wheels use the same principal as a rotor / fan blade to help remove heat from brakes?  What I mean to ask is, is is possible to design a wheel that will suck air thru itself from under the car to outside of it, in an effort to get cooler air to pass over the brakes to keep them cooler?  It would not take that much air movement to make a difference I don't think.  Would there be a downside to the air movement?

Sorry for the hijack but these wheels remind me of a high speed rotor...

GJ

Downside? Increased air resistance... that's why we have the ducts on the front of the car that feed the brakes.

[Critterman]

Most of the air turbulance is caused by the wheels now, you don't want to increase it, look at the covers they are putting on Formula 1 cars.  And yes I did mean Chip not Tanner

[wspohn]

Why don't wheels use the same principal as a rotor / fan blade to help remove heat from brakes?  What I mean to ask is, is is possible to design a wheel that will suck air thru itself from under the car to outside of it, in an effort to get cooler air to pass over the brakes to keep them cooler?  It would not take that much air movement to make a difference I don't think.  Would there be a downside to the air movement?

Back in the early 70s, my friends running Datsun 240Z did just that. They machined their mags flat on the outside and drilled and tapped them, and then bolted on Corvair engine fans to to suck a ton of air through the wheels.  This saved their brakes, which on the pads available were getting pretty marginal given the amazingly good speed of the cars.