Leaderboard

It definitely is a bit of heavy handedness to justify aftermarket mods saying the car is not good enough as is. For most people in regular track days, they are out for a bit of fun and a bit of learning. Very few are professionally competing and if they are, a track day is not for them. If one wants a BBK for a very specific reason like they are forced induction or compete professionally and need to go longer before breaks etc, it makes sense but otherwise not. @tubbytommy you do seem to have the my way or highway approach. Very curious as to how many medals adorn your living room showcase on your competition credentials? If you do, I become your fan as you speak with experience and have delivered. If not , keyboard warrior. @Lauren you and Kev are experts in TSS and opinions are valued. Just not worth generalizing as people like me do 2 track days / year and to better myself , not compete , so can live with 15 min track times then cool off brakes. So a BBK is really not worth for most GT86 owners. Sent from my SM-G970F using Tapatalk

It's not dead yet! i'm bringing this topic back from the dead for another very big and very exciting update but I'll just let this do the talking... That's right, i've just ordered my Rocket Bunny V2 Kit for the Car. I have to say it was VERY expensive being that alot of sites online don't include the 20% import Tax or even Air-freight from japan costs in to their online listings for it but to me it's well worth it. To some this might sound silly but this kit was one of my reasons for getting a gt86 in the first place and was the primary reason i went for a write-off, afterall why cut up a perfectly good example? Some of you might also be rolling your eyes and having lost interest (if you haven't already from the air lift) but im hoping that the 3 people who are still following (hi mum!) keep watching. This was a bit of a goal for me and i'm really pleased to make it a reality before the end of the year. I've purchased it through the official Rocket bunny EU supplier who are based over in Germany and rather than have them deliver it to me will be making a bit of a holiday/road trip for myself as I go over there to pick it up with a mate, should be fun! Also just to finish thing's off seeing as i've always found the Greddy/Rocket Bunny renderings really lackluster here's one of my favourite cars with this kit belonging to Connor_lol

Here is my take on this. Firstly I believe it is a myth that inexperienced drivers that brake early are the one overheating their brakes. The faster you go the more kinetic energy goes into the brakes. If you over brake and take the corner slowly you'll be going slower at the end the straight ect. Some people are faster than other and that's a fact. Some will struggle to fade DS2500 others will fade them in one lap ect... Jeff is correct you don need a BBK to track a GT86. Proper race pads that work best when the disc is glowing will give you fade free performance for ~20min track sessions. TMG racecars used to run Project Mu999 then switched to carbotech for long disc life until they eventually fitted Alcon brake kits. I ran project Mu Racer 999 which are not the best race pad by any means but they didnt fade after 30minute at bedford on a supercharged car. However there are drawbacks: 1) Disc wear was high. I took 25% of the disc life in one trackday. 2) They are not road friendly at all; screeching, grinding and poor bite at low temp. So you have to switch pads out. 3) The high temperature can damage the piston seals in the caliper meaning they need rebuilding more often; one of my calipers was leaking after the bedford trackday 4) Even if the caliper doesnt leak, the dust boots will get burned up, exposing the steel piston to road salt leading to eventual seizing. 5) you might have to use race fluid which needs changing more often So I fitted a 355mm x 32mm 6 pot AP kit so I could run soft road friendly pads on road or track and never worry about reliability as the disc never goes much beyond 350C. Its a choice I made for convenience. Does it stop faster than stock caliper and Project mu 999? Not a chance. In the early 90s the 600+HP 230+mph Mclaren F1 came with 330mmx28mm discs. It also came with race pads and if you watch some of the youtube videos you will find they screech like buggery. They also dont hold up very long on track. Now you buy a £1M hypercar and they come with 400+mm ceramic brakes with 8 pot calipers and you can drive on road or track and never worry and they are super quiet and work in cold conditions. Racecars use race calipers and use the smallest, lightest disc they can get away with. Different kettle of fish and not recommend for UK winter driving. Yes Church lack of dust boot mean salt ingress and your steel pistons will eventually seize or become pitted and leak. A the end of the day it choice of convenience but my goal was a car I could drive on road or track and it will handle it in it stride.

I totally get that you are right and this is I guess the point that @Deacon is making they are not necessary if you are doing a few trackdays a year and as Jeff pointed out track orientated pads with matching discs will be up for the job if you are. So yes, not worth it for the majority of owners who go and have a play. Even in the sprint series the stock calipers with different pads will do the job and won't hold you back from being competitive. Look at Rob Dowsett competing in my class in a stock car bar PS4's. He's not far off. I would concur with @Ade for the reason for going BBK as I do at lot of miles on the road.

Just a shame you've come across as such an arse then 🤷‍♂️

Is SpecK back?

Admittedly I have a charged car. However I started with DS2500 pads on stock callipers. 2 laps of donny and they were shot so much fade! Pedal always felt wooden from cold. I then upped the game to carbotech XP10 pads, I removed the disc stone guards and put on GT3 cooling ducts. These were night and day compared to the DS2500, bite was always there and was consistent which made modulation easy. I didn't get any fade when I did brands or Cadwell ect, the tyres would give up before the brakes did! However when it came to man sized stops I was getting fade, this was on the Nurburging GP into T1 hairpin which was the biggest brake in F1, and Rockingham T1, when you had come off the banking into the hairpin. The common theme is a hairpin big speed 150mph to 30ish? Could have lived with this perhaps but I got through them fast, they did not last long at all. We are talking 4 track days. These pads arent cheap and I didnt see that as sustainable..... For a spot of context: The car I came from before the GT86 was a MK3 MX5. Even more track biased. The MX5 was on stock discs and callipers, and Carbotech XP8 pads. This car was around 1100kg, and 190 HP at the fly. It used pretty much the same size disc as the GT86. 290mm x 24mm, the MX5 was a single pot slider the GT86 a twin pot slider. The MX5 ran Carbotech XP8 pads, and did a complete 10 track day season about 200 track miles per day, and never suffered fade and did a season on a single set of pads. So the 86 is 150-200kg heavier than the MX5, and has another 70hp? and its was running a very similar sized disc and pad which is going to have a similar thermal capacity. Therefore to gain more thermal capacity a BBK is the only way. This would lead to no fade, greater consistency and lower pad wear. Yes I could have gone for a higher rated pad, it may have stopped the fade, however it was going to generate more heat and probably wear out as quick if not quicker. I bit the bullet and for the Rayland BBK, Cp9200 calliper and a 330mm disc. I am using a Mintex F4R pad, these are fairly aggressive but cost around £100 so nice and cheap. The brake fade is gone, the consistency is spot on every time making modulation easy, they look great, the wear is low. Oh and the POWER. These rip your face off when you throw out the anker, its my favourite bit of the car. So you can now stop faster, with no fade lap after lap until the tyres give up. Best track day upgrade for the car!! I would not bother if your not a keen track day goer though. If you do 1 or 2 a year for fun and your not "fast" put a decent set of pads on take the disc stone guards off and put some £20 GT3 ducts on and enjoy. No matter what brakes you have all ways use decent fluid, you do not want to boil it and end up with no brakes!!! I use RBF600, and always bleed a pedals worth out the calliper when I have the wheels off as thats where its going to boil.

It's also one of the best sounding