GT 86 Brake Bias.

[CHOSENMAN007 81]

Hmmm d2 kits are good for gt96s. Shy of £900 for 6 pot.

[CHOSENMAN007 81]

Gt86

[Kodename47 446]

There's a reason why nearly every single Big Brake Kit and Race car has slotted discs though. 

 

No matter how good the pad there will be dust and gases generated under heavy braking. So whilst a solid disc will probably be fine in 90% of road uses, I think if you plan to take it on track. You'd want slotted to prevent glazing of the pads. All depends how you use your brakes.

Actually most of the better new discs have J hook design and that's to increase bite. Having pad deposits on the disc isn't actually a bad thing, ever read how to bed in track/race pads? You need to heat the pad up so much to leave a thin layer of pad material on the disc. Again, glazing happens due to the inability to lose heat, slotted wont help that. Have a read of this: http://www.ft86club.com/forums/showthread.php?t=63781

 

Also it's worth of noting that more pistons ("pots") on a caliper doesn't mean better braking. If you haven't increased the master cylinder size the braking effort isn't increased. The extra braking effort in a typical BBK is due to the larger discs and pads.

 

STi brake setup:

http://www.ft86club.com/forums/showthread.php?t=23512

[GT86Jay 202]

Of course. Pad material on the disc isn't bad. That increases bite. But excess gas build up between the pad is whats bad. 

 

Anyway it's the same as winter tyres I think. personal preference on your situation. 

I've opted for the STI brake setup as I want the cosmetic benefit but not serious braking. And not by spending £4k+ all round. 

[Kodename47 446]

Of course. Pad material on the disc isn't bad. That increases bite. But excess gas build up between the pad is whats bad.

Yeah, but what makes you think our pads put out the gases you're trying to remove? Pad material, as with most things, have moved on over the years. The issues that grooved discs were designed to help decades ago probably don't still exist

I'd put money that you'd have had no worse braking on the track with your pads if you had solid discs.

[GT86Jay 202]

Maybe that's the case. All I know is with the stock setup back roads from Norwich to Loddon caused issues and serious brake fade.

 

Now with slotted discs the issues I experiences have gone. Don't care if it's down to heat dissipation, gas build up or Magic Fairies. 

 

Spent about 3 months researching the brake setups. Slotted aren't any more expensive over solid discs. And In my experience and now solved my brake fade issue. Therefor in my eyes slotted discs are worth it. 

[Kodename47 446]

Maybe that's the case. All I know is with the stock setup back roads from Norwich to Loddon caused issues and serious brake fade.

 

Now with slotted discs the issues I experiences have gone. Don't care if it's down to heat dissipation, gas build up or Magic Fairies. 

 

Spent about 3 months researching the brake setups. Slotted aren't any more expensive over solid discs. And In my experience and now solved my brake fade issue. Therefor in my eyes slotted discs are worth it.

Are you still on OEM pads then?

[CHOSENMAN007 81]

I'm going drilled!

[Kodename47 446]

I'm going drilled!

Good effort. Just make sure you go for a good brand and keep an eye on them!

[rob275 1817]

I'll be getting a brake kit soon, i'm sure pads will work fine but the standard calipers are looking awful on my car with rust on the seam etc and it just isn't complimenting my car. For me it'll be for both function & looks.

[CHOSENMAN007 81]

Knightrider.. D2 any good!?

[Lauren 2259]

You get what you pay for, James. 

 

Here's a link which doesn't really sell the D2s.

 

http://forums.evolutionm.net/evo-tires-wheels-brakes-suspension-sponsored-tire-rack/530390-d2-380mm-brake-kit-problem-hard-shacking.html

 

HTH.

[will300 812]

You get what you pay for, James. 

 

Here's a link which doesn't really sell the D2s.

 

http://forums.evolutionm.net/evo-tires-wheels-brakes-suspension-sponsored-tire-rack/530390-d2-380mm-brake-kit-problem-hard-shacking.html

 

HTH.

 

Jesus, that's bad. Spec K what are your K-Sports like as they are just re-branded D2's (vice versa)?

[Kodename47 446]

Jesus, that's bad. Spec K what are your K-Sports like as they are just re-branded D2's (vice versa)?

I'm not sure if they are any more, I'm sure someone told me the brake kits are different. When D2 and K-Sport started their suspension kits, it was D2 that got the decent reviews and K-Sports were the "budget" brand but that was years ago and I'm not sure if that's changed.

Jay, you never answered the question. Your sig says you have WRX(??) pads and SS brake lines? Could none of this attributed towards the better braking system?

[CHOSENMAN007 81]

Cheers Lauren.

Since I'm not a button or sennna, I think d2 slotted will do nicely.

As far as reviews are concerned I take it all in but with a pinch of salt.

Look at the gt86. It's was not all song and dance in the reviews. But we all love our cars to bits. Lol

End of the day why pay 2k on alcons or ap if I'm not that big to track stuff. But a better biting brake kit, more stopping power and yes looks good in my wheel is all I need.

I mean k sports are doing well. A few of us are smashing them on track with zero fade or dramas.

[rob275 1817]

Given that D2 thread was posted 3-4 years ago i'd take it with a pinch of salt, them issues could arise from more than just the Kit itself. Admittedly I didn't read it all as to be honest I hate walls of text and the paragraphing by that guy is atrocious.

[Lauren 2259]

I admit, I just typed in 'GT86 D2 brakes review' in Google and that is what came up with. 

 

But, what I would say, is if some brake kits are a lot cheaper than others then there will be a reason for that. 

 

Personally I think the stock brakes are just about adequate on track, though my fronts were smoking after the second session at Lydden Hill. I should add I don't have much pad left so that might not help. 

 

I think uprated pads are about all you need on an NA. 

 

I would likely try uprated pads, but I wouldn't buy a cheap big brake kit, so unless I felt it warranted going for AP etc, I wouldn't do it. Brakes are quite important after all. But, I'm not bothered by looks, function over form, always for me. 

 

It's your money though, they'll doubtless be fine, but I would do a bit more research. Whilst stuff from Taiwan often represents good value for money, it does generally mean cheaper components as they have to cut the price somehow and this is not always a good thing of course. 

[GT86Jay 202]

For me it's a mixture of both. I want good performing brakes and the looks to go with it. A bug of mine has always been the brakes under open wheels. OEM wheels aren't to bad but they just look awful under a set of open spoke wheels. Especially 18" 

 

I agree with not going for a cheap New Big Brake Kit! But I've gone for the WRX Brembo Kit. Which is fitted to 2008 Imprezza with 300bhp+. 

 

So they're not going to be terrible. They're going to be better than stock. And they give me the better look / size i'm after under 18" wheels. 

 

Steve - Currently the Brembo Kit isn't fitted. So has nothing to do with better braking i've experienced.

 

I don't hate the stock setup and think it does very wheel on track. Like Lauren my fronts where smoking after the track session and so where Chris's. For me changing to the WRX Brembo kit is more about looks whilst offering something of similar or better than stock.

 

It was originally a very expensive optional extra on new Imprezzas. Over 1k so it's not going to be a terrible setup. 

[Keethos 842]

Let us know how you get on Jay, plus I want a full write-up / how to thread   and you James 

[GT86Jay 202]

Fensport will probably be doing the work I've got Steel Lines to go on too at the same time. 

 

But i'll certainly do a write up / photos.

[Kodename47 446]

Steve - Currently the Brembo Kit isn't fitted. So has nothing to do with better braking i've experienced.

What I was getting at mate was what components have you changed so far? Is it just the discs?

Keethos, you wanted a DIY write up: http://www.ft86club.com/forums/showthread.php?t=61978&highlight=STi+brembo

[GT86Jay 202]

What I was getting at mate was what components have you changed so far? Is it just the discs?

Keethos, you wanted a DIY write up: http://www.ft86club.com/forums/showthread.php?t=61978&highlight=STi+brembo

Disc and pads.

[Kodename47 446]

Disc and pads.

Ok, so what pads? It's a bit unfair to attribute all your increase in braking performance to slotted discs when you're not running the same pads.

[GT86Jay 202]

I've never attributed the Increase to just pads. The discussion was about brake bias. And options. I stated ive not had any problem since fitting my setup. Not that its absolutely discs that have improved. And I never said non slotted discs would be bad. Read the reviews slotted discs are have a benefit. They're no more expensive

All I was doing was recconending slotted discs as I've not had any problems....

[CHOSENMAN007 81]

D2 or k sports I would class as mid range kits. No where near the cheap option. Seen cheaper. Alcon, brembo and a.p top shelf kits. But let's me serious, we buy for our ability. There is no way I will even touch the capabilities of a mid range kit even with a f.I install. That statement can go for most of our products we bolt on to our cars.

Oh with the exception of Lauren who is a racing driver and rob who is probably the quickest novice amongst us.