Anyone done this, or is it seen as overkill? Just looking into it and had a cunning plan, but figured I would get other opinions first!
personally think its overkill unless your racing.
the guys on this link did a good job of it
Yeah seen this previously, looks like a good job. I am looking at an easier way of fixing a backing plate to the hub, got my thinking cap on, but not come up with anything - as of yet!
The thought did cross my mind some time ago after I overheated my brakes on a relatively tame track day. Boiled fluid, pads completely shagged etc Going into a hairpin at 100+ with a total loss of all brakes. Scared the shit out of me and marshal I was aimed at looked a bit worried too!
I’m without the OEM oil coolers so I was just going to get some ducts and hose from demon tweeks and try to direct the air from where the oil coolers would be to the discs. If anyone knows of something like the back plates in the thread then that would make life a lot easier.
That is what I am going to do, however I was hoping to mount the ducting cleverly near to the calliper, just finding somewhere to mount it is the issue, maybe something like an adapted/variant of the ABS sensor bracket?
I might order some bits and have a play. The last few track days with better fluid and pads I’ve not really noticed any huge problems. But this year I intended to start pushing it so I expect to reach the limits of standard and callipers soon. Additional ventilation can only delay the inevitable.
Search on here for what Uldis did ( some older members will remember Uldis … )
I actually think that if you do it correct it makes some difference, and Uldis did it correct …
I reckon that a top quality brake fluid will see off most ‘overheating’ brake probs…
I ran out of brakes at Donny with the OEM fluid… changed in to R600+ and never had any more issues at all. 
^^^^^ What he said ^^^^^
The Motul R600 is great stuff and not silicone based which to me is good news
I do normally use RBF600 (having said that I have got CL fluid in at the moment) - but I just think I would rather be safe than sorry, for the sake of a bit of ducting. I do tend to be pretty hard on the brakes - I don;t think the brakes not reaching temperature should be an issue as I will be using CL RC6 pads, which ‘apparently’ have a very linear coefficient of friction from cold throughout the temp range.
BOE do this set up
http://www.boefabrication.com/lotuselise/brakeducts/default.aspx
Clucking bells $600 