K Sport Brake Review

[Checkbuzz]

So you were testing out these brakes for the first time on Sunday @ Sandown as well?

I had a similar experience, very happy with the brakes but they definately need a good bleed after the dry sessions later in the day.

The brakes got a damn good punishing and I'm using Penrite SIN (600f)... I might look at some cooling next up (UAS deflectors maybe?)

BTW your R32 looks and goes hard, very nice work in the engine bay too. I'm glad the first run on the track with the brakes and engine went well for you.

You've got some of those GTR boys looking worried!

They were good except the first dry session when I actually could brake hard I had massive fade. Using Motul RBF600. Gave it a good bleed then it was great for the last session (hardest braking). I'm happy so far.

[Russman]

You've got some of those GTR boys looking worried!

That's what I'm aiming for

Actually I forgot about 1 problem I had. The pad retainers are made from very cheap metal. It snapped during install. Luckily Ace workshop had a nissan retainer that fixed the problem.

[ssxRicho]

They must have revised that for the newer ones. I can't see how you could brake the ones that are on mine.

[SargeRX8]

Installed these yesterday. Was surprised just how easy the install was, everything bolted up perfectly. Only used one shim on one of the bolts on one side and all lined up well. Yet to drive on them, will report back after Sandown on Sunday.

Re the "gay colour", can get them in black if you import them (unsure if they can be found locally).

Hey man, looking at your pictures something struck me pretty quickly... The direction of the grooves is running the wrong way around... Did you fit the rotors correctly?

Also to the OP, do you think what happened to you was just bad luck or is it something which could happen often and overlooked? I plan to get a set of these for my car but have no idea about what anything you wrote means... Are you basically saying the rotor did not sit flush? The thickness is not the same the whole way around? What is this run out stuff?

[R32 TT]

Hey man, looking at your pictures something struck me pretty quickly... The direction of the grooves is running the wrong way around... Did you fit the rotors correctly?

It doesn't matter which way the grooves run, it matters which way the vanes run.

Edited July 8, 2011 by R32 TT

[Josh_TypeX]

It doesn't matter which way the grooves run, it matters which way the vanes run.

What he said. The grooves on the K-Sport rotors run the opposite way to most. The rotational direction is clearly marked on the packaging.

[SargeRX8]

The vanes as in the stuff in the middle to flow air?

[Russman]

The vanes as in the stuff in the middle to flow air?

Yep. vanes are opposite to grooves. Wierd ey. Make me think twice...

They need to 'swirl' outwards, not inwards.

[MrStabby]

Actually I forgot about 1 problem I had. The pad retainers are made from very cheap metal. It snapped during install. Luckily Ace workshop had a nissan retainer that fixed the problem.

Which bit is the retainer? On my G4's the pads are held in by two bolts inside two thin pipes, and a spring clip sits between these two bolts and rests on the pad. I cant think of any bit that would snap easily - are the K sport the same arrangement?

[ssxRicho]

Yep same. I think Russ broke the spring clip, how? No idea.

[Russman]

Yeah the spring clip. Dunno. Just broke when pressure was put on it.

[Josh_TypeX]

Due to adverse weather conditions, I was not able to fully test out the brakes at Sandown.

I made the mistake of thinking that I had sufficiently bedded in the pads on the street. After 1 hot lap I had major brake fade at corner 2 resulting in an off No damage though, so it was alright.

Only got one more dry session and was not really leaning on the brakes because I was still learning the track (first time at Sandown).

The brakes felt good though and I am looking forward to giving them a proper test at PI in August.

[z80]

G'day guys, beel lurking on the forum for a few years now.

Just thought i would add my experiences to the KSport discussion.

I got the first fit of Ksport 8 pot fronts AND 4 pot rears on a supercharged V6 Mitsubishi.

In summary found Ksport and AB Motorsport to be very reasonable to deal with.

They were the only company interested in fabricating a front AND rear setup for my car.

I could have fronts in any shape or form that I wanted in a few brands , but only KSport agreed to make rears as well..

(the rear handrake drum assembly is the show stopper for most brands)

Fortunately I had a full rear axle off a wreck for them to use as a mock up for the prototype.

They picked it up from me in Geelong and freighted it to Sydney...at their expense....both ways.

They returned it two months later, complete with a full 8 piston front / 4 piston rear kit which includes high quality braided lines etc....instructions, washers,spacers,etc etc etc

I was impressed with the quality of the kit and still am 20,000k's later.

But...It's for a street car with ocassional private road use...but it is a 13.xx second supercharged vehicle running 12 psi, so it does frequently stop hard.

Around Geelong and melbourne i often saw obviously very capable cars with great looking Brembos at the front and silly looking hand red painted rear calipers.

With Ksport I have four high performance brakes, that stop like a mountain goat at the edge of a cliff.

About the only criticism I can make, and it is a trivial one, is that the installation manual is a poor English translation.

"Install bolt XYZ very tight, do not" You get the idea.....LOL

I say they are great value for money and perform well.

cya

Here's a couple of pics of the drivers side.

Edited October 15, 2011 by z80

[DattoP510]

Interesting thread thanks guys. Starting to think about upgrading the Brembos also...

not totally relevant but thought I would put this link up here for an intersting read. http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths

[mgold]

Good to see you got it all worked out in the end. However, I reckon you are tripping out over the discs not being within the tolerances? I've fitted cheaper disks with 2mm difference in roundness and you will get NO vibration or anything bad. Only the contact sides of the rotor need to be close to perfect.

You've been stressing over nothing!

[heller44]

Does anyone happen to have the measurements for these brakes, 330mm kit top of caliper out from center.

The rims I have at the moment, even though they are 17's, have a narrow barrel towards the spokes and require a caliper / rotor combination that sit a little more snugly. Fitting r32 gtr sumitomos and with 324mm discs and dogbones the top of the caliper fouls on the inner of the barrel, not the spokes.

I have tried to get a template, or measurements for this kit but they seem to be unavailable.

[tricstar]

where does everyone get there replacement rotors ? 356mm/32mm.. for K-Sport 8-pot, kit

was hoping to get AP or something good, does anyone have all the info required, P.C.D. measurement,? etc

[R31Nismoid]

Give Import Monster a buzz, pretty sure Aaron can get his hands on them as he is a D2 distributor as of a few weeks ago (and workin now on getting the group buy off the ground for us)

[DattoP510]

group buy you say? could be interested in this. where will it be posted?

[R31Nismoid]

Well finally have the group buy sorted

http://www.skylinesaustralia.com/forums/topic/413182-big-brake-group-buy/

Those who want a farken good price, there you have it!