Quote: Originally posted by Glenn Mc on 12 February 2007
Are you going to do the cooling upgrade too ??
this is meant to be a well worth while upgrade on the MKI so i have been told...
G.
The brake cooling conversion on the Mk1 is excellent. It is more than just the Cup ducts that Andy Duncan refers to. It consists of closing up the front underside vents, routing piping through the rear of the inner front wheel arch, and directing it towards the back of the brakes. It's hard to see the full install, but you get this additional scoop inside the wheelarch...
Maximum brake cooling is provided by combining both the brake cooling conversion + Cup brake ducts. I have had both conversions done, and even on a short circuit around Brands Indy, the brakes cooled down enough to actually start squealing again on each lap with moderate brake use.
The vents on the top of the front PU a-la-RS is a different conversion. That is the Cup rad conversion which cants the front rad forward to allow air to hit the rad at a perpendicular angle and vent up and over the front bonnet. Note that the RS does not cant the rads forward and only has the PU vents. Combined with the closed underside vents (see above) and you get cooler running temps and also greater front end downforce. This conversion runs my car at least 10deg cooler at any point in time, and on track days running in max attack mode, the temp never rises above the 80 mark. The difference in front aero is noticeable with a front that feels nailed down at high speed (+17kg front end downforce at speed).
