View Full Version : KSport 6 pot REAR 330 and 356mm brake kits in stock
Just had the first lot of KSport rear brake kits through to have a look at.
The caliper feature 6 pot pistons of varying sizes to ensure even pad wear.
KSport do 2 size kits, 330mm and 356mm.
The calipers do not include a handbrake assembly. The 330mm kits dont have the inside diameter to accomodate the S13/Z32/Skyline GTST handbrake assembly so this size kit is for the die hards only as youll have to switch to a hydraulic handbrake.
The 356mm kits for the S13/Z32/Skyline GTST come with the original type handbrake assembly meaning you can retain the original handbrake assembly. If the kit is for an S14 then this handbrake assembly can be retro fitted to allow the big brakes to be installed.
We are about to fit a set of 356mm to our Skyline :)
http://www.sxoc.com/vbb/attachment.php?attachmentid=39123&stc=1&d=1162392237
http://www.sxoc.com/vbb/attachment.php?attachmentid=39124&stc=1&d=1162392258
http://www.sxoc.com/vbb/attachment.php?attachmentid=39125&stc=1&d=1162392267
200krisx
01-11-2006, 15:04
Are you going to be running 356mm on the front and rear? :notworthy: Are you going to be doing anything in terms of brake biasing?
Kris :)
We will run 356 all round :nod:
The rear calipers are smaller than the front with smaller pistons so the brake force wont be a million miles off but we will also be installing a hydraulic handbrake at some point and when we fit that we will fit a bias valve into the rear line :)
:cool:
How come the 330's wont take the GTST handbrake assembley but the 356's will? I would have thought the bells would be the same :confused:
Actual_Ben_Taylor
01-11-2006, 15:15
Bren, when you come up with a bias valve solution can you post up the details please :)
Even with my 356mm front brakes it felt very rear baised with the R33 GTR rear brakes at Elvington.
:cool:
How come the 330's wont take the GTST handbrake assembley but the 356's will? I would have thought the bells would be the same :confused:
I havent questioned it yet. We have 330mm and 356mm in stock, Ill compare them :)
Ben,
Ill just run one line from the master cylinder, through the car floor to the hydraulic handbrake, from the handbrake to a bias valve, then from the bias valve back through the floor and to the rear brakes.
Cant see any problems with that arrangement or am I missing something? :)
Put the rear bias valve before the handbrake or you'll have to pull the handbrake chuffing hard :)
Ben, try a bigger MC first mate. Like GTR one maybe? :wack:
The std bias is in the MC.
I was thinking about trying the bigger master cylinder, had a Z32 in mind.
Yeah that should do it, but the R32 Vspecs, R33/34 GTRs run the biggest calipers/pistons so it stands to reason the biasing will be best suited to Bens brakes on these MCs.
scimmy ben
01-11-2006, 17:22
I know this thread was about the brake kits but you should be aware that the valves you put in the rear brake line AREN'T bias valves. They are proportioning valves or balance valves but they do not control the bias throughout the pedal/piston movement all they do is limit the maximum level of effort the brakes will apply. This means that the rear bias feeling doesn't necessarily go away. :(
I understand what youre saying but would they not reduce rear effort and therefore do the job?
Jesus this is clucking mental....
It would be good to see a complete package - 356 front and matched rear for s14's, with all the gubbins necessary to fit.
Think you would need to be knocking over 350 bhp for this though? Or like track days a lot...?
Minimum wheel sizes all round would be 18 surely as well?
mmmmmm next year.... yes please...
My 310 kit is really really good - but thats just for standard engine output.
When I am knocking over 300 - with all the lightweight bits fitted to the car I would be looking for these I think...
I understand what youre saying but would they not reduce rear effort and therefore do the job?
He is saying it wont "kick in" until very hard braking I think anayway.
So on light pedal pressure you still get the same front rear balalance and its not until youre braking hard that the rear balance is reduced?
Bren, when you come up with a bias valve solution can you post up the details please :)
Even with my 356mm front brakes it felt very rear baised with the R33 GTR rear brakes at Elvington.
I'm not convinced, heavy braking when your not in a straight line will slide out the back end even if the rears are standard. I don't have much trouble with mine unless i get excited too much and do as the first sentance states...
So on light pedal pressure you still get the same front rear balalance and its not until youre braking hard that the rear balance is reduced?
Yup - the valve just sets a max pressure for the rear. So the balance is the same until some point and then rear pressure fixed (I think)
You need a brake bias unit - IIRC Chris Wilson made one up for his Skyline.
Mmm, but the different m/c adjust bias properly?
Yup - theres different effective "leverage" as the front and rear master cyl bores are different.
So it maybe possible to get the right ball park balance by testing various m/c? S13/300ZX/S14/Skyline etc.
Yep, or twin MC's like Big Tone and Chris Wilson.
I'm not convinced, heavy braking when your not in a straight line will slide out the back end even if the rears are standard. I don't have much trouble with mine unless i get excited too much and do as the first sentance states...
Im of the same thinking Justin. The back end is already the lighter end, then we tend to strip them out and then under braking it goes UBER light. I run S13 rear brakes and can lock that up sometimes! :wack:
Yep, or twin MC's like Big Tone and Chris Wilson.
Aye but thats big hassle for the majority of peeps :(
Actual_Ben_Taylor
02-11-2006, 09:38
Aye but thats big hassle for the majority of peeps :(
Not if you develop a bolt on kit :D
cliffb75
02-11-2006, 12:43
TBH its not too bad Bren.
Have a look at my thread for how I've done mine.
You could do it differently from how I have. e.g. if you made a flat plate you could bolt it on to the bulkhead, so no need for welding there (only some hole drilling). Will still need to weld the bias tube into the pedal. Biggest headache will probably be replacing the brake lines.
It is the right way to go as you can then match your master cylinders to your piston area front and rear, and you'll get much better brake feel and response.
Wouldn't be too hard to develop a comprehensive kit IMO.
Ive no doubt that it could be done, I just dont see a huge level of demand for it to be honest :(
Richy_Boy
02-11-2006, 13:39
If the smaller kit *had* to use the hydrolic handbrake then it wont pass an MOT in the UK as you have to have a cable in place... so it'll be for track only use :(
Rich
scimmy ben
02-11-2006, 18:27
Ive no doubt that it could be done, I just dont see a huge level of demand for it to be honest :(
Not huge but the market would be S13/300ZX/S14/Skyline/s15 etc. If done under K-Sport the market would also be UK/US etc
Each car would need its own kit putting together and testing which would be a hell of a lot of work. Each car would need three options:
330mm all round
356mm all round
356mm front 330mm rear
scimmy ben
03-11-2006, 11:08
Not if you just made the bolt on framework and left it to the client to select industry standard master cylinders. Testing would amount to whether it bolted on properly, the rest would have to be at the clients risk (for motorsport use only). Like the K-Sport hydraulic handbrake kit where you have to make up your own brake lines and fabricate some mountings yourself (I assume).
I spent some time trying to find a conversion that someone does for normal rear calipers to give them a handbarke but cannot find it now!! It consisted of 2 plates the same shape as the brake pad backing plate but with a pair of protrusions from the back of the caliper. These protrusions took a handbrake cable and pulling the handbrake pulled the pads together. Its a simple solution to those that want large rear calipers but want to retain a cable handbrake. If i can find details I'll post them.
scimmy ben
03-11-2006, 11:14
..
Double post - Dodgy connection in SAA Lounge J'Burg :wack:
I spent some time trying to find a conversion that someone does for normal rear calipers to give them a handbarke but cannot find it now!! It consisted of 2 plates the same shape as the brake pad backing plate but with a pair of protrusions from the back of the caliper. These protrusions took a handbrake cable and pulling the handbrake pulled the pads together. Its a simple solution to those that want large rear calipers but want to retain a cable handbrake. If i can find details I'll post them.
That would be cool :nod:
Will the rears be going through a similar testing and upgrading that you did with the fronts, as I recall you specced around half a dozen unique changes to the "out of the factory" design they were initially supplied with.
scimmy ben
03-11-2006, 11:57
http://www.marlinsportscars.co.uk/5exi/dev_brakes.html
The new Marlin mechanical handbrake assembly allows the fitment of any make of after-market or OE caliper to the rear wheels - and it can be retro-fitted, so anyone who has been forced to go for a compromise handbrake arrangement can now replace it with this ingenious, lightweight, alternative.
Developed by Marlin’s Mark Matthews, the new system consists of just two mechanism plates (available in stainless steel, steel or alloy), a spacer and retaining pins (on each rear wheel), so the extra weight is minimal and yet it provides an efficient handbrake and meets all legal requirements.
It can be fitted to any two or four-pot, and most six-pot, calipers to provide a cable-operated handbrake, independent of the hydraulic system. And it’s self-adjusting.
Looking at the prices, it looks very reasonable as well. If you already do a Civic/Rover 200 or a BMW 3 kit I'm sure you could get them to retail your massive calipers for their kit cars.
cliffb75
03-11-2006, 12:15
Thats is a really neat solution on the lines of 'why didn't I think of that?'
Now thats got me thinking about rear brakes :rolleyes:
Ive just phoned for more info but got an answer machine so left a message :)
Bloody hell what a simple but sensible solution. If Bren gets this as a package for his Ksport front and rear sets - Im well up for a 356/330 combo.
Oh yes. Very. Next year. Sign me up.
what sort of price are these going to be ?
I havent finalised prices yet.
Quick quesdtion, not for me but people will probbly want to know.
will the 356's fit under 17's like the fronts ?
Cheers
I dont know if theyll fit under all 17s but they should fit under some. We will have ours fitted to the Skyline this week so will have more pics and info then :)
I dont know if theyll fit under all 17s but they should fit under some. We will have ours fitted to the Skyline this week so will have more pics and info then :)
Awesome,
I know i said it wernt for me but i'd love aset of 356's all round :D
Bren 300zx tt and also R32GTST run 297mm 2 pot brakes on the back and only 280mm 4 pot on the front so sureley the Z32 & R32GTST BMC would be biased better for 356/356 setup compared to the S14 BMC?
Butuz
Very possibly, theres only one way to find out :thumbs:
I want. This might be my early next year present. To go with my January pay cheque wheels present. Assuming ready to go by end of Jan?
very interested, will be keeping an eye on this, would love 356 all round.
Quick pics:
http://www.sxoc.com/vbb/attachment.php?attachmentid=39709&stc=1&d=1164015159
http://www.sxoc.com/vbb/attachment.php?attachmentid=39710&stc=1&d=1164015189
And impressions? good of course... how much would a front and rear kit be...?
No, sorry, I have only driven the car round the corner as its smoking. I took it to a local tuner yesterday who are looking at it. I wont be able to test properly until:
1) We get the car back
2) We get a dry day :wack:
http://www.marlinsportscars.co.uk/5exi/dev_brakes.html
They arent doing them at the momnent :cry:
scimmy ben
22-11-2006, 15:16
What, not for any caliper?
Not K Sport, the company doing the handbrake thing. They say theyre too busy to manufacture the handbrake components right now.
cliffb75
22-11-2006, 17:14
Is the design patented?
Even if it is, would they consider letting someone else make them under licence?
Or are they actually not very good and don't really work?
I find it hard to believe that something as simple and potentially beneficial in the race / track day world as this is not being made 'cos we're too busy'
Bren to the rescue??? :D
It did cross my mind to ask if we could buy the design. Ive emailed the link to K Sport to see what they think. They might be able to produce something similar :)
any news on the biasing of these kits bren?
We were too busy to do any real development late last year but I will have the car out on track in the next week or so to see how they fair :)
Bren, you are a bad, bad man :whip: :whip: :whip:
tempting us with goodies like these :(
very interested in the handbrake set-up as I've already got your 330mm 8-pots on the front and think the matching rears would look uber sexy :)
don't fancy getting 356mm on the back with only 330's on the front tho :( and with the hassle of the 300zx type handbrake set-up...
Powered by vBulletin® Version 4.1.9 Copyright © 2012 vBulletin Solutions, Inc. All rights reserved.