Verus Engineering Brake Cooling Kit
We wanted to design an OEM like installed cooling kit that maximizes cooling with as short of routing as possible. We also wanted to ensure it fit both big brake rotors and stock rotors alike. Doing our best to keep cost a forefront thought, we set into designing the kit you see below.
We created two kits: -A backing plate DIY kit which includes the backing plates and hardware to attach to the knuckles and then the end user will build the rest of the kit. -A full installed kit which includes everything from the fog light duct to the backing plates. This does require OEM or similar fog light covers to be used. http://www.ft86speedfactory.com/velo...l#.VzmA3_krLIU Kit components http://i.imgur.com/JxQGi6I.jpg http://i.imgur.com/zUvELjY.jpg Backing plate with carbon pre-preg duct. http://i.imgur.com/ehFICGo.jpg Injection molded fender liner duct and fog light duct All hardware for a seamless install, including pre-cut brake duct hoses and steering rack limiter kit. The only thing needed for an install is an OEM type fog light surround. Backing Plate Kit Installed http://i.imgur.com/wr81Ris.jpg http://i.imgur.com/stdUSMc.jpg http://i.imgur.com/j31k5Se.jpg http://i.imgur.com/A64ja9F.jpg Installed with AP Sprint http://i.imgur.com/GB02k96.jpg http://i.imgur.com/RPaEDXa.jpg Full Kit Installed: http://i.imgur.com/ezIiQ9t.jpg http://i.imgur.com/gU9VAdU.jpg http://i.imgur.com/ahCwRi9.jpg http://i.imgur.com/vFA6J9j.jpg http://i.imgur.com/xwSVo2Q.jpg http://i.imgur.com/2L7EB7Q.jpg http://i.imgur.com/2jDYd5n.jpg http://i.imgur.com/qZgaTNi.jpg http://i.imgur.com/VCTmFTm.jpg http://i.imgur.com/RmFA0Xo.jpg FAQ: My wheels already hit my fender liner, how can your kit fit without rubbing? -We include a steering rack limiter kit in each kit. While this slightly increases turning radius, it will allow your wheel/tire/suspension setup of choice to clear the fender duct. Which BBK will this fit? -The backing plate installs very close to the knuckle, we foresee no issues with any BBK. We have only run into one issue when installing whiteline's RCA on a car with AP Sprints, the front LCA is closer to the rotor than the 50 thousandth thick backing plate. As long as the LCA to rotor surface is larger than 60 thousandths, the backing plate will fit with the rotors. What else do I need to install the kit? -OEM or similar style fog light cover. We recommend OEM Subaru and Scion if possible. Does this require the removal of the windshield fluid reservoir? -Yes |
Testing and Functionality
Testing and Functionality Video Data: Using tuft testing we were able to visualize the flow and effectiveness of the inlet into the brake duct kit as well as the backing plate and carbon duct through the internal rotor vanes. https://static.wixstatic.com/media/b...a82de86e1a.jpg Fig. 1: Test setup for tuft testing. Video is available for viewing here: [ame="https://www.youtube.com/watch?v=u090pxKTs9c"]Velox Motorsports Brake Cooling Kit R&D - YouTube[/ame] Thermal Imaging: Using thermal imaging, we were able to test four conditions with the brake cooling kit. To keep the tests consistent, the passenger side had the full brake kit installed while the driver’s side was left OEM. What is thermal imaging and how does it work? Objects emit infrared energy based on a function of their temperature, also known as heat. This energy is referred to the objects heat signature. Generally, the hotter an object is, the more energy the object emits. A thermal imager (camera) is a heat sensor that is capable of detecting these differences in infrared energy or heat. These units collect the radiation from the viewing area and create electronic images based off this information and temperature differences. The unit we are using has a 330 degree C max temperature reading with an accuracy of +/- 1 degree C. Testing Strategy: Two control tests were mapped out that we believe accurately depicts the abilities of the duct kit in two severe cases and two cool down cases. Two speeds were tested, a 40 MPH low speed test, and a 75 MPH high speed test. This was to map out two different airflow rates, higher vehicle speeds translates to more airflow into the brake rotor via our kit. At each speed we tested two cases, a severe braking case and a cool down case. The severe braking case involved power braking with an engine load of 1.0 (constant load between the two tests) for 1 mile straight. The cool down case involved driving the same road the opposite direction with using as little brake as possible. At the end of each case, we would quickly gather thermal images of the brake rotor. In between the 40 MPH low speed test and the 75 MPH high speed test, we ensure the brake rotors equalized in temperature. Please note time and date stamp added from the thermal image camera, pictures were taken within 30 seconds of one another. Thermal Image Data: https://static.wixstatic.com/media/b...a872bb185d.jpg Figure 2: Control before initial 40 MPH test, rotors are within 4 degrees C of one another. https://static.wixstatic.com/media/b...37e5efc72e.jpg Figure 3: Hot readings directly after power braking for a mile. https://static.wixstatic.com/media/b...30a787c9ab.jpg Figure 4: Cold readings directly after driving one mile at 40MPH with minimal brake use. https://static.wixstatic.com/media/b...f9454854db.jpg Fig. 5: Control 2 showing rotors have leveled out in temperature after 12 minutes. https://static.wixstatic.com/media/b...71f9293186.jpg Figure 6: Hot readings directly after power braking at 75 MPH for 1 mile. https://static.wixstatic.com/media/b...1b9d6b23b2.jpg Figure 7: Temperature taken after 2.0 miles driving at 75 MPH with minimal brake use. Numerical Data: https://static.wixstatic.com/media/b...7c578d4452.png Figure 8: Numerical data from Thermal Images Conclusion: Via tuft testing and thermal image testing it’s quite clear that the brake cooling kit is highly effective even when used with the OEM rotors which have quite small vanes when compared to those of big brake kits. Smaller vanes will reduce flow and cooling due to the smaller vane size. With the brake cooling kit, the rotors remained much cooler directly after applying the brakes as well as after a short drive without using the brakes. It is also apparent that at high rates of speed, the brake cooling kit does significantly more than at lower speeds. This makes a lot of sense as the kit works by using frontal ambient air and funneling it into the center of the rotor. At higher speeds, pressure and flow rates are greater than at low speeds. We have heard reports back from customers tracking their cars having reduced brake fade, reduced rotor cracking, improved pad wear, and reduced brake fluid boiling. As a result, this is a great kit to help keep brake components at an appropriate temperature during competition and/or track days. |
@VeloxEric: have you considered of making alternative set, with duct intakes behind rad grill instead of using foglight intakes for those, that don't wish to sacrifice fog lights of top trim to replace them with brake air duct? I'm thinking of something like in this kit. I guess, only similar intakes + maybe different length front hoses will be needed to customize existing kit?
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I'll be ordering a set! Do you expect any interferences with the stoptech 355mm BBK?
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Also forgot to mention. I am accepting tips for cutting the brake duct hoses to size :party0030:!!! For those that have worked with it in the past... they know what kind of a chore that is :barf:. I have more hours in cutting that hose than packaging the rest of the kit. Also, YouTube video is up: [ame="https://www.youtube.com/watch?v=u090pxKTs9c"]Velox Motorsports Brake Cooling Kit R&D - YouTube[/ame] Thanks, Eric |
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*If we see enough want, we can make a bolt in solution for this. We learned a lot about blow injection molding through this project and can whip something up if the need is there.* There are a few other options on the market currently as well. |
Is there any way to make the FRS kit work without removing the washer fluid reservoir?
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@VeloxEric, are there any pictures of the driver side hose routing? |
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PTuning also makes a smaller windshield washer reservoir. http://www.ptuning.com/subdir/itemde...&ModelDesc=FRS
Zeal86 made his own with a universal bottle. http://www.ft86club.com/forums/showthread.php?p=2143421 |
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