Jordan C
Member
Registered: 3rd Dec 07
Location: Dundee City Drives: Valver Corsa
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As title! how much should i be paying for these? beleive there 308mm runing 2.0 16v calipers and braided lines!
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lil_g
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Registered: 29th Oct 06
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No idea but I want them!! Badly!
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SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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i used to have some brakes the same as that . were really good! think there about 300 ish new so 100 - 200 depending on wear on them
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lil_g
Member
Registered: 29th Oct 06
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where did you get them from sportyboy? 
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Jordan C
Member
Registered: 3rd Dec 07
Location: Dundee City Drives: Valver Corsa
User status: Offline
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There like new apart from the surface rust! no groves or that in them! also got braided lines with it wich saves me sum moneys!
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DaveB
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Registered: 29th Dec 00
Location: Huddersfield
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Hi-Spec 300mm using original 16v calipers.
They don't sell it anymore as the discs were prone to cracking when using the standard calipers as the heat wouldn't disapate enough.
Kit was way more than £300 new though - the new 'rotors' alone are c. £260 apair.
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Jordan C
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Registered: 3rd Dec 07
Location: Dundee City Drives: Valver Corsa
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Are they any good? these arnt cracked it all! might have to warm them up and cool them down properly! got speedlines so they will get plenty air anyway
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DaveB
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Registered: 29th Dec 00
Location: Huddersfield
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Very good; just keep an eye on the discs! I had them for 4years on my GSI; went through 3 pairs of rotors in that time, LOL. Excellent brakes mate (for the money anyway)
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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braking isnt in the size of the disc, its all in the clamping force. so they wont be much better than standard XE brakes.
the bigger discs help with heat dissipation, nothing more. generally the pads will overheat well before the discs.
they do look good though.
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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and in my Hi-spec catalogue from 2003 these were #280 new (just discs, bells and brackets)
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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quote:
Originally posted by Dave A
braking isnt in the size of the disc, its all in the clamping force. so they wont be much better than standard XE brakes.
the bigger discs help with heat dissipation, nothing more. generally the pads will overheat well before the discs.
they do look good though.
nope bigger disks make alot of difference it's not just the clamping force, think of it, spin a wheel put your finger in the middle it takes longer to stop than if you put your finger on the outside rim.
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andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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same kit as what i have. pretty damn good for what they are really. not had a single problem with them at all. you should put v6 pads in as they are the same just a bit wider so they use all of the disc instead of leaving a rusty bit. on the inside. i paid 160 quid just for the outer rotors. 
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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WTF that makes no sense at all 
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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mmm i would have thought v6 pads wouldn't make a difference or make it worse, you want a long pad but not wide.
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andyc1234
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Registered: 7th Nov 06
Location: Lancashire
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it does make sense. which ever way it is they are bigger and fit the disc better. i know what i mean
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Adam_B
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Registered: 13th Dec 00
Location: Lancashire
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not you mate, sand-eel making out a big disc makes that much difference.
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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quote:
Originally posted by sand-eel
nope bigger disks make alot of difference it's not just the clamping force, think of it, spin a wheel put your finger in the middle it takes longer to stop than if you put your finger on the outside rim.
A bigger disc has 1 purpose, that is to dissipate heat more efficiently. On a road car you will struggle to overcook a good disc and pad setup. The most important factors with brakes (apart from the spec of disc and pad material) is the surface are of the pad and the amount of clamping force that is applied to the disc. the more clamping force and surface area, the faster the disc and pads will heat up. The surface are of the pads used with this kit is relatively small and perfectlly suited to the standard disc size. So will the bigger disc make much difference to the braking? well yes, it will allow the pads and discs to cool down quicker and run cooler but will you ever get them that hot? I agree they do look a lot better and wont harm the breaking peformace but at the same time they wont improve it greatly.
All of the above is not just my opinion its information from various brake manufacturers and designers.
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cheekyalex
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Registered: 5th Jan 06
Location: liverpool
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I thought bigger discs are also more effective due to having more leverage to stop the wheel, as its further from away from the center, if that makes any sense?
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline
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thats what i was trying to say, the further away from the centre the bigger "moment arm" there is.
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Shrek
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Registered: 2nd Nov 06
Location: Berkshire
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Everyone is right in their own way.
The simple way of putting it is, the bigger the disc the better the stopping power, i'll explain.
Basically brakes will work efficiently at a pre determined temp so the bigger the discs the more heat they will disipate and therefore not over heat and boil your nice fresh brake fluid. well done Dave A have a cookie. 
However this is NOT the only benefit of larger discs, Dave A again gets another cookie as he has highlighted the important fact of clamping force that is almost always overlooked. The more surface area of the disc you have the larger the pad you can have this give you more friction area! so therefore will slow you down much quicker and wont have to work as hard.
For example if you have 250 mm discs and pads to match discs, then upgrade to 500 mm discs with larger pads then your brakes will require much less effort to stop you, therefore increasing stopping power.
I could go into coefficient friction forces but i have a head ache and would get really bored!
Sorry for the essay i tried to keep it short. 
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Shrek
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Registered: 2nd Nov 06
Location: Berkshire
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Just another quick one if you want really good brakes then you must upgrade the whole system starting at source. i.e The master cylinder etc...
You could also try leg weights??
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Pete_vxl
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Registered: 24th Nov 06
Location: Lochgelly, Fife
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Dave A is gonna be a fat bastard by the end of this thread.
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Ellis
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Registered: 11th Sep 07
Location: Aberdeenshire
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Whats the point of having great big fuck off discs when you only have XE calipers?
Mind you it looks damn cool behind a Speedline
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joes_1.4_16v_sport
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Registered: 15th Mar 07
Location: Preston, LANCS
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Has anybody got a "HOW TO" guide on fitting bigger/ ie: Better brakes to a x16xe
2 LT brakes go straight on?
Any modding to be done?
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DaveB
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Registered: 29th Dec 00
Location: Huddersfield
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Well, not basing my opinion on "what I've read", or laws of physics.
I'm basing my opinion on the fact that I owned the same brake setup on a 210bhp astra gsi (heavy car btw) for over 3 years and noticed a MASSIVE improvement in braking power over the standard 16v setup.
It's likely, that had 4pots been fitted, that this improvement would have been even better still, but having not tried that, I can only comment on my experiences.
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