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Author Topic: ADR wheels  (Read 1359 times)

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Offline Gentleman Jack

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ADR wheels
« on: January 29, 2010, 01:33:13 AM »


Go-N-Def,

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

GJ
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Offline patrick.schmidt

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ADR wheels
« Reply #1 on: January 29, 2010, 02:15:33 AM »
I have the ADRs...19 inch...love them....P

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Offline Gentleman Jack

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ADR wheels
« Reply #2 on: January 29, 2010, 03:04:50 AM »
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
May the Schwartz be wit you

Offline Gentleman Jack

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ADR wheels
« Reply #3 on: January 29, 2010, 03:09:59 AM »
I have the ADRs...19 inch...love them....P

(Image removed from quote.)
\


PS: Great looking car!

GJ
May the Schwartz be wit you

Offline Rogue

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ADR wheels
« Reply #4 on: January 31, 2010, 01:57:04 PM »
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?
Go N.A.K.3.D..

Offline LiquidPT

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ADR wheels
« Reply #5 on: January 31, 2010, 02:23:00 PM »
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.
LiquidPT aka Matt
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Offline Critterman

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ADR wheels
« Reply #6 on: January 31, 2010, 04:48:22 PM »
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
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Offline wspohn

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ADR wheels
« Reply #7 on: January 31, 2010, 06:19:33 PM »
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.
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