All Things Mk5 > Performance Modifications
Brake upgrades (RS4)
Janner_Sy:
no longer have a vRS, im in the market for new wheels at the minute. got 10k burning a whole in my pocket, but just cant decide what to get.
I do really use the brakes on my car on track trying to go as late as possible, which to be fair isnt the best idea on stock sized brakes lol.
Had i kept the vRS id have changed brakes. for me they were the weak point big style.
--- Quote ---have you fitted the 'open' fog lamp grilles? Because these actually make brake cooling worse! Because you seem a bit of a hardcore track addict, have you thought about possibly ducting your brakes?
--- End quote ---
am i reading that right, it sort of contracdicts itself. I had considered ducting though, but the problem is doing it in a tasteful manner
vRSAlex:
--- Quote from: Janner_Sy on October 20, 2010, 05:38:47 pm ---
--- Quote ---have you fitted the 'open' fog lamp grilles? Because these actually make brake cooling worse! Because you seem a bit of a hardcore track addict, have you thought about possibly ducting your brakes?
--- End quote ---
am i reading that right, it sort of contracdicts itself. I had considered ducting though, but the problem is doing it in a tasteful manner
--- End quote ---
Does a bit :P Just running ducting into the wheel area wont help with cooling. It needs to be on the back of the disc.
You cant really run ducts on the golf through the fog lamp areas due to the washer bottle being in the way on the drivers side. I did some ducts on a MK5 from under the car attached to the underside of the arch liners. I have some pics somewhere I will dig out. The hose ran on the inside if the arch liner then along the wishbone to the bottom of the disc. It noticably dropped disc temps after checking before and after with a temp gauge. Porsche cup cars run very similar routes for their ducting. Just with more carbon kevlar bits!
Teutonic_Tamer:
--- Quote from: Janner_Sy on October 20, 2010, 05:38:47 pm ---
--- Quote ---have you fitted the 'open' fog lamp grilles? Because these actually make brake cooling worse! Because you seem a bit of a hardcore track addict, have you thought about possibly ducting your brakes?
--- End quote ---
am i reading that right, it sort of contracdicts itself. I had considered ducting though, but the problem is doing it in a tasteful manner
--- End quote ---
You need to carefully look at the airflow for the OEM front brake ducts. On the GTI (& Eddy) the lower front lip collects air from the front of the car, and then 'spills' the collected air (with help from high pressure generation from standard 'closed' fog lamp grilles) under the bumper roughly below the fog lamps. Grovel on the floor and you will see the collection ducts for the front brakes directly under these points.
But fit open fog lamp grilles, and not only do you allow air to basically spill aimlessly into your engine compartment, you also remove the high pressure area which helps the lower splitter from spilling air underneath and into the OEM brake ducts.
Teutonic_Tamer:
--- Quote from: BDMAlex on October 20, 2010, 09:49:54 pm ---
--- Quote from: Janner_Sy on October 20, 2010, 05:38:47 pm ---
--- Quote ---have you fitted the 'open' fog lamp grilles? Because these actually make brake cooling worse! Because you seem a bit of a hardcore track addict, have you thought about possibly ducting your brakes?
--- End quote ---
am i reading that right, it sort of contracdicts itself. I had considered ducting though, but the problem is doing it in a tasteful manner
--- End quote ---
Does a bit :P Just running ducting into the wheel area wont help with cooling. It needs to be on the back of the disc.
--- End quote ---
Hmmmm - not completely necesary. Yes, if you are utterly hardcore, and braking is fairly on the edge, then yes, direct cooling trunking hoses directly at the rear face of the disc.
But general air into the wheel arch behind the wheel is generally good enough - that is how the Mk5, the RS4, R8, RS6 etc all feed their front anchors.
--- Quote from: BDMAlex on October 20, 2010, 09:49:54 pm ---You cant really run ducts on the golf through the fog lamp areas due to the washer bottle being in the way on the drivers side. I did some ducts on a MK5 from under the car attached to the underside of the arch liners. I have some pics somewhere I will dig out. The hose ran on the inside if the arch liner then along the wishbone to the bottom of the disc. It noticably dropped disc temps after checking before and after with a temp gauge. Porsche cup cars run very similar routes for their ducting. Just with more carbon kevlar bits!
--- End quote ---
I'm sure I've seen Mk5s with ducting where the fogs were. Maybe the washer bottle was completely re-sited.
Cupra R:
--- Quote from: mYGeL on August 23, 2009, 08:37:28 pm ---is the yellow ones the same as on the R32?
How did you get the badge on?
I have an Leon cupra Mk2 and want to fit a bodge wit a loggo but havent find anything to fit?
Regards// michael
--- End quote ---
Just buy some caliper brackets from an R32 off the likes of Ebay Micheal, then paint them, put a sticker on, then laquer them.
Cheap as chip's. Clip's cost me about £3.50 I think off Ebay.
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