Front Brake Ducts Question
Thread Starter
Drifting
Joined: May 2002
Posts: 1,530
Likes: 1
From: Houston TX
Front Brake Ducts Question
I had my tires off and was wiping down the wells when I noticed the left and right side brake ducts are different. Is this supposed to be like this or am I missing something here???? 
Safety Car
Joined: Jun 2005
Posts: 3,989
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From: DFW This user does not support or recommend the product or service displayed in the ad to the right
the one in the second pic is what it should look like..(smaller hole is correct).
I just watched a show about the design of the C6. The Large holes created too much lift causing instability at high speeds.
I just watched a show about the design of the C6. The Large holes created too much lift causing instability at high speeds.
Burning Brakes
Joined: Dec 2000
Posts: 962
Likes: 8
From: Rio Rancho NM
Originally Posted by aggie88
I had my tires off and was wiping down the wells when I noticed the left and right side brake ducts are different. Is this supposed to be like this or am I missing something here????
The larger opening duct is correct for the Z51 preformance package and the smaller duct is for the non Z51 packakage,
While they did find some additional lift with the larger opening (as I recall at VERY high speed), they still use it on the Z51 cars.
Mine are both like your larger openning on my Z51 C6.
Pat
P.S. If you trim the smaller duct along the radilal line in the pic...you will have a larger duct...same as the other side.
Last edited by Pat Salerno; Aug 28, 2005 at 12:26 PM.
Drifting
Joined: May 2005
Posts: 1,254
Likes: 0
From: Ft. Liquordale Florida
Interesting...
Despite the potential for increased air-flow with the larger duct, I'd think that the cap would direct air more effectively to the rotor than just the open duct. I like the ductwork on the rear brakes though. Directs the stream right onto the rotor. Can't use that on the front though, as it would interfere with the wheels' ability to TURN.
Rick
Despite the potential for increased air-flow with the larger duct, I'd think that the cap would direct air more effectively to the rotor than just the open duct. I like the ductwork on the rear brakes though. Directs the stream right onto the rotor. Can't use that on the front though, as it would interfere with the wheels' ability to TURN.
Rick
Safety Car
Joined: Dec 1999
Posts: 4,202
Likes: 2
From: Plano TX
Originally Posted by 2005ArcticWhite
I have the Z-51 package. Both sides are the large openings....
I saw the show mentioned above, but I don't recall at what speed they had the additional lift. Likely beyond any speed I need to worry about.
Le Mans Master
Joined: Oct 2004
Posts: 8,615
Likes: 60
From: Haymarket Virginia
Originally Posted by TooManyIDs
Same here and just the way I want it. Need the cooling for the track, even the larger tubes aren't enough.
I saw the show mentioned above, but I don't recall at what speed they had the additional lift. Likely beyond any speed I need to worry about.
I saw the show mentioned above, but I don't recall at what speed they had the additional lift. Likely beyond any speed I need to worry about.
On another note, they had Vince Wager the squeak & rattle engineer on the show. He should be fired.
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Thread Starter
Drifting
Joined: May 2002
Posts: 1,530
Likes: 1
From: Houston TX
Originally Posted by runutzzzzz
I just saw the show, in the test it showed it added lift, but when they did track testing with the "new" smaller tube temps raised from 400 to over 500F and they said norm. temp is 400. They said "brake function was won out over aerodynamic gain"
On another note, they had Vince Wager the squeak & rattle engineer on the show. He should be fired.
On another note, they had Vince Wager the squeak & rattle engineer on the show. He should be fired.
Do the non-Z51 cars have the ducts too?
I don't do high speed track events with my car so I don't think this is a big deal, in fact for low speed autocross, the smaller hole may be better combined with the drilled rotors. Maybe this "fluke" setup may add value to my car?
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Originally Posted by TooManyIDs
Same here and just the way I want it. Need the cooling for the track, even the larger tubes aren't enough.
Photo of my car on the http://www.pfyc.com web site
http://www.pfyc.com/store/merchant.m...y_Code=VTTRACK
