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I'm searching for an item I once saw on a photo, cant remember where, of a carbon fibre brake duct which is installed on the lower front control arm directing air towards the disc, it looks like an air scoop made from carbon fibre.
I can't find it, I would love to have it to aid in the cooling of my brakes on the track
They were smaller, they looked like a piece of carbon fibre bolted to the lower control arm to deflect air towards the discs. I'm getting old, for the life of me cant remember where I saw them.
They were smaller, they looked like a piece of carbon fibre bolted to the lower control arm to deflect air towards the discs. I'm getting old, for the life of me cant remember where I saw them.
Porsche uses them...you might want to google search images for something that might fit. Although not a Vette but Mustang related, Vorshlag makes a kit that they claim tested to be effective. I think some aluminum pieces bent to fit your application may work, here is an example: https://vorshlag-store.com/products/...-deflector-kit
I don't see how that piece helps cool the brakes. Also it is definitely not carbon fiber. In the link you provided the guy peels it back to look at the a-arm. 4th pic down. Its some kind of rubber.
The Z06 comes standard with a set of plastic deflectors mounted to the lower control arm. They are removed and replaced with a different set of deflectors when 2017+ duct kit is installed. Air comes in through the grille ducts and from under the car and is deflected toward the back of the rotor. The replacement deflector is shaped a little different and makes room for the duct that fastens to the LCA and collects air from the grille and under the car and ducts it upward between the control arms to blow at the center of the backside of the rotor. On an iron brake car the wheel blockers reduce the amount of air going around the outside of the rotors and help force it through the center of the rotor and out through the rotor cooling vanes to the outside world.
Bill
Last edited by Bill Dearborn; 07-17-2020 at 02:42 AM.
C6Z06 from 2011 on had these on the Z07 package. not on the standard Z06. Note the Carbon brake rotors in the pic above. They were probably on the ZR1 also.
I don't see how that piece helps cool the brakes. Also it is definitely not carbon fiber. In the link you provided the guy peels it back to look at the a-arm. 4th pic down. Its some kind of rubber.
Not a NASA quality scientific test but there is some measurable differences between a ducted system and an air deflector on this video. One side had a duct and the other side used an air deflector....about 100 degrees cooler in this example for the air deflector.
It really is hard to get an ducted system to work well if not designed correctly.....most factory duct systems will be best on weekend warriors. But if a home brew ducted air flow system is concentrated on the wrong part of the rotor, this can cause over cooling on one side and rapid thermal expansion/contraction which can lead to premature rotor cracking.
Interesting video. Thanks fuggles
Perhaps noteworthy...the ducted side also had a backing plate beside the rotor.
In another application (non corvette) I had used a similar setup and found that the backing plate was acting like a frypan lid, retaining the heat.
I removed it and basically had the 3” hose just extend about 2.5” from the rotor instead.
That worked better. Unfortunately I don’t have data.
But it also had the added benefit of helping the brakes cool off faster afterwards with less chance of rotor warpage once stationary. Heat wasn’t being reflected back
Eventually, I eliminated the ducts altogether (because of bodywork changes) and attached large Porsche 997 GT3/GT2 deflectors to the lower control arms. It seemed worked better yet (than my ducts).
But, that application had a lot more airflow hitting that part of the suspension than I suspect a Corvette may have.
Still, I may look into adding these deflectors to my 08Z in addition to its grill mounted ducts. Must check, but I don’t recall that my control arms are tapped for the mounting bolts
C6Z06 from 2011 on had these on the Z07 package. not on the standard Z06. Note the Carbon brake rotors in the pic above. They were probably on the ZR1 also.
07-14-2020, 09:53 AM
Lower control arm brake duct ?
