Awesome update. That weight saving is madness, I can only imaging what that might do to the way it drives... Exciting stuff
Going by what everyone else seems to say about the AD08R, they are head and shoulders above even the best road tyres in the dry.
I had my 17" S Spoke alloys off today to do the rear brakes so I measured it: 20.6KG with a Goodyear Eagle F1A2 with 5mm.
So with the new alloys and tyres coming in at 17.2KG there should be 3-3.5kg saved per corner, which isn't bad!
Tbh I'm not sure if I have ever heard the fan on my Mini... I assume it has just never gotten that hot as the temp gauge has never risen beyond half...
Yeah, the needle on mine never moves from the dead centre, but that's because it's a buffered gauge. I was monitoring the temperatures the other day and when I'm driving along it's 89-93c whether i'm hoofing it, or driving sedately. When I stop and park up, the temperature slowly rises, and as it goes passed 105c the low speed quiet fan should gently bring it back down. However mine waits until 112c when it turns on the high speed fan for about 10 seconds which brings down the temperatures very quickly, then the temperatures start rising again and after 30 seconds or so the fan comes on again etc etc
Like I said, it's not causing an issue at all the car doesn't ever overheat, but i quite fancied the challenge of fixing it to make sure it's 100%.
I also got round to replacing the rear brakes today. The discs were original Mini discs and I'm pretty sure they were the ones from the factory! The pads were Apec ones. Note to anyone - never use Apec pads. Got the Brembo ones fitted and the pedal feels very nice during my 3 mile test run. Just got to wait for them to bed in now to see how the pedal feels then. I only had a couple of issues when doing this:
1) The sodding Torx T-50 disc retaining screw - The driver's side one came off quickly with my Ryobi 18v impact wrench (400Nm). However the passenger side one didn't move one bit. The last time this happened, I had to use my breaker bar which ended up shearing the head off and I was desperate that I didn't want that to happen again. I was considering getting the blowtorch out etc, but then I happened to remember I had an old 12v cigarette lighter Liftmaster impact wrench (
https://www.amazon.co.uk/Liftmaster-Impact-Digital-Display-Configuration/dp/B0036YHBMM) which I bought about 8 years ago for £30. It isn't really an impact wrench as it doesn't hammer away, it just puts a sudden amount of torque through the bolt (it works in the same way as putting a spanner over a bolt, then using a hammer to bang on the end of the spanner - rather than using a breaker bar which just puts a constant force through it). I used to it when I replaced the all the suspension on my M3 and it undid 10 year old rusted pinch bolts etc without so much as breaking a sweat so I gave it a go. And low and behold - within about 3 seconds it had undone the disc bolt with no drama whatsoever. A proper amazing piece of kit for £30 which has saved me quite a few times.
2) The metal clips on the back of the brake pad which on the piston side, must be clipped over the piston.