Brake ducts
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
you can hit a pot hole or a bump and no sway bar loading or on a road racing track hitting the corner apex cement rumble strips. You want to allow wheel travel in a stiffly sprung car. In the rear it keeps you from being tail happy as is the case when using too large of diameter bar without sticky enough rear tires
my front end is totally lightened without all the heavy metal, head lights, vacuum tank, and thinner fiber glass blue front springs are 600# and rear 520# custom mono
Racer
Joined: Jan 2008
Posts: 295
Likes: 58
From: Arvada Colorado
I've been digging through my old photos of my actual duct work. I have been using Photobucket for ever and you can't copy all your pictures off their site. It saves them as an unusable format.
But anyway, on the front I had NACA screened scoops from I think speedway motors, three inch hoses, I ovalled a three inch pipe directing air to the center of the rotor. three inch is twice the air of a 2 inch setup and I had very little in the way of bends, it was kind of rounded curve from the front.
These pictures I had it all apart to regrease the bearings. You have to use high temp bearing grease because so much heat gets transferred to the spindle that the grease melt and comes out
But anyway, on the front I had NACA screened scoops from I think speedway motors, three inch hoses, I ovalled a three inch pipe directing air to the center of the rotor. three inch is twice the air of a 2 inch setup and I had very little in the way of bends, it was kind of rounded curve from the front.
These pictures I had it all apart to regrease the bearings. You have to use high temp bearing grease because so much heat gets transferred to the spindle that the grease melt and comes out
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Melting Slicks
Joined: May 2011
Posts: 2,753
Likes: 119
From: Springfield Missouri
are you going to keep racing???? if not then you are going to do a lot of work for not much advantage later, also a lot of cash going down the drain. Our club used to do a lot of autocrossing, then everyone got to doing other things, lost interest and even the club disbanded!!!
Last edited by lvmyvt76; Dec 29, 2017 at 10:42 AM.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
are you going to keep racing???? if not then you are going to do a lot of work for not much advantage later, also a lot of cash going down the drain. Our club used to do a lot of autocrossing, then everyone got to doing other things, lost interest and even the club disbanded!!!
But anyway for a pure street driven Vette it is still a good time. I've only removed three items. The spray fire system, 4 quart accusump because they took up the passenger seat area. I removed the air ducts
Thread Starter
Drifting
Joined: Aug 2015
Posts: 1,939
Likes: 477
From: NSW, Australia
C3 of Year Finalist (track prepared) 2019
Room near the spindles is really tight in my case. I'm running a '96 C4 suspension up front (but with 11.75" rotors so my stock C3 wheels can still fit), and I have yet to figure out how to get a duct hose snaked into there. So the setup I'm using is some aluminum and plastic sheet attached to the lower A-arm, formed in the shape of a spoiler/ramp, to divert undercar air towards the center of the brake rotor. In addition to that I'm running SS shims between the pads and pistons (with Wilwood calipers) to impede heat flow to the caliper, and hi-temp brake fluid. The Pace car front spoiler also helps to pull air from the wheels/rotors due to the side shape of the spoiler, which directs frontal air sideways, causing a low pressure area at the outer sides of the front wheels.
I'm using Wilwood pads (B compound) that work very well, although they are a bit rough on the rotors.
I'm using Wilwood pads (B compound) that work very well, although they are a bit rough on the rotors.
I've been digging through my old photos of my actual duct work. I have been using Photobucket for ever and you can't copy all your pictures off their site. It saves them as an unusable format.
But anyway, on the front I had NACA screened scoops from I think speedway motors, three inch hoses, I ovalled a three inch pipe directing air to the center of the rotor. three inch is twice the air of a 2 inch setup and I had very little in the way of bends, it was kind of rounded curve from the front.
These pictures I had it all apart to regrease the bearings. You have to use high temp bearing grease because so much heat gets transferred to the spindle that the grease melt and comes out
But anyway, on the front I had NACA screened scoops from I think speedway motors, three inch hoses, I ovalled a three inch pipe directing air to the center of the rotor. three inch is twice the air of a 2 inch setup and I had very little in the way of bends, it was kind of rounded curve from the front.
These pictures I had it all apart to regrease the bearings. You have to use high temp bearing grease because so much heat gets transferred to the spindle that the grease melt and comes out
When photobucket started their ransom demands, I was able to download all of my photos by album as .zip files, have they taken that away?
My closest proper circuit is a 2 hour drive away, but a circuit is currently being built only about 10 minutes away, where there is currently a hillclimb track. It's scheduled to open late in 2018, I can't wait!
are you going to keep racing???? if not then you are going to do a lot of work for not much advantage later, also a lot of cash going down the drain. Our club used to do a lot of autocrossing, then everyone got to doing other things, lost interest and even the club disbanded!!!
Last edited by Metalhead140; Dec 29, 2017 at 11:21 PM.
