GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Jayz on 05 June 2011, 19:05
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Just brought some 312mm brakes for my mk4 1.8t (callipers, carriers, new pads, flex hose) and i'll be buying the grooved and dimpled discs next week. Is there anything else that I need and is it a straight easy fit?
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Dont bother with Grooved discs IMO - Get decent pads :wink:
http://www.golfgtiforum.co.uk/index.php?topic=87778.0
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Brake fluid :smiley:
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Dont bother with Grooved discs IMO - Get decent pads :wink:
http://www.golfgtiforum.co.uk/index.php?topic=87778.0
huh what's wrong with grooved disc?
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wear ya pads down quicker
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they dont really wear your pads much quicker.. and many many thousands of people run them without problems.. they may not do a lot but they look a heck of a load better than huge plain discs..
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Yep look the nuts but more money for no more stopping power tbh
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wear ya pads down quicker
bloody hell i didnt even know
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they dont really wear your pads much quicker.. and many many thousands of people run them without problems.. they may not do a lot but they look a heck of a load better than huge plain discs..
huge plain discs are better performance, less chance of cracking, better value for money. id rather have that lot over it looking better
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yep me to tbh
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yep me to tbh
+3 :wink:
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fair enough i'll get some plain discs thanks guys :wink:
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Surely if grooved and drilled discs were so bad.. porsche.. lambo.. Audi .. etc etc.. who spend MILLIONS designing cars each year why dont they use plain discs ?? It cant just be because they look good they must have a practical use.. 99% of cars which have big brakes have grooved discs..
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Surely if grooved and drilled discs were so bad.. porsche.. lambo.. Audi .. etc etc.. who spend MILLIONS designing cars each year why dont they use plain discs ?? It cant just be because they look good they must have a practical use.. 99% of cars which have big brakes have grooved discs..
Not bad at all - " Drilled Discs:
A common misconception is that the purpose of drilled discs is to promote cooling. This couldn't be further from the truth, The real purpose is to reduce weight.
Drilling can allow brake dust and gases to escape, but with modern brake pads, this usually isn't a problem. Choosing a drilled disc for that purpose doesn't make a whole lot of sense.
Many high performance cars like Porsche and Mercedes AMG come with drilled discs from the factory. For these cars, the drilling is mainly about the looks, just like bright red calipers. When people do serious high-performance driving on a trackdays, they usually swap to regular plain discs.
Drilled discs generally wear out brake pads faster and produce much more brake dust as a result.
Drilled discs have a shorter service-life than plain discs and tend to develop stress fissures/cracks over their lifetime "
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Yes the drilling is to save weight... does it reduce disc life, maybe i doubt you would even notice.. does it eat through pads not from any of my friends cars with them fitted ( maybe marginally over plain )... and you say about track days, i went BTCC 6 weeks or so ago and they dont run plain discs, is it just because they want to look good ?? :lipsrsealed: :grin:
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Yes the drilling is to save weight... does it reduce disc life, maybe i doubt you would even notice.. does it eat through pads not from any of my friends cars with them fitted ( maybe marginally over plain )... and you say about track days, i went BTCC 6 weeks or so ago and they dont run plain discs, is it just because they want to look good ?? :lipsrsealed: :grin:
http://uk-mkivs.net/forums/p/153276/1014271.aspx
# Grooved Discs
# Grooved discs keep the pad surface clean and allow certain gasses to escape which improves performance. not too many grooves though, you only need 6 or so, anymore and it it just for looks(e.g tarox cheese graters)
# For street driving they may make a marginal improvement in initial brake "bite"
# Grooved Discs are great for shedding water and mud off the rotor surface as in Rally racing or wet-weather racing.
# Grooved Discs do accelerate pad wear and produce more dust just like drilled discs do. They also add noise and vibration into the system. For many these issues are annoying enough to not choose grooved discs, unless you do alot of rallying!
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Standard discs with uprated pads is the best bet.
Drilled discs tend to crack.
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Dan you're comparing HIGH PERFORMANCE cars to the humble MK4 :grin: :grin:
Plain discs FTW :wink:
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Dan you're comparing HIGH PERFORMANCE cars to the humble MK4 :grin: :grin:
Plain discs FTW :wink:
Good point im gona sit in the corner now :laugh: :laugh:
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easy to do mate, whip the old ones off and new carriers go straight on.... bolts are tight as f*uck tho for the Carriers so best get the big guns out!!
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What plain discs do people recommend then? I find my standard discs and pads leave a lot of dust. Could be because they need doing.
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any plain discs gsf or such.. and feroddo ds2500 pads :smiley:
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Ds2500 are racing pads aren't they? What about normal driving and a bit of fast road driving now and again?
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Been running plain old vented discs and Ferrodo DS3000 and DS2500 pads on both my 911 and Golf. Recently replaced the discs on the Golf with some Zimmermans from GSF, I compared them to their cheaper option in store and the quality of finish was far superior to the cheaper version. They weren't too much more money either. They also come with a coating over the whole disc, obviously this wears off on the actual friction surfaces but everywhere else it stays on and helps prevent them from going rusty. Seem to be holding up pretty well so far.
With the DS pads you can get some squeel.
Cross drilled either get dusted/rusted up and eventually crack, certainly more show than go. Also not sure what gases would actually build up when you apply the brakes either, what actually generates this so called gas, what is it and why wouldn't it dissipate effectively anyway?
One thing that I have always believed in is surface area and disc thickness, the thicker and bigger the disc the more heat will be allowed to dissipate through the material far more effectively than holes or grooves.
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Gas production and dissipation use to be on old brakes due to the compounds they where made from. Modern pad materials don't do this. It's one of them things people still go on and on about without realizing times have changed.
As said grooved discs do not really benifit you much and are a waste off money IMO. Drilled are a complete waste, I have seen so many crack under hard use.
The feraddo pads are the best IMO but they do cost a bit which is the down side, but they will not disappoint. I have never been a fan off the pink, red, yellow, purple green stuff never understood what the hell was the hype apart from the food coloring. Either go stock or go all out, I am running a Mintex setup at the moment which seems a slight improvement and a better bite, but I can still smoke and bake the pads under heavy driving, but for n0bbing around and normal use they are spot on.
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Gas production and dissipation use to be on old brakes due to the compounds they where made from. Modern pad materials don't do this. It's one of them things people still go on and on about without realizing times have changed.
As said grooved discs do not really benifit you much and are a waste off money IMO. Drilled are a complete waste, I have seen so many crack under hard use.
The feraddo pads are the best IMO but they do cost a bit which is the down side, but they will not disappoint. I have never been a fan off the pink, red, yellow, purple green stuff never understood what the hell was the hype apart from the food coloring. Either go stock or go all out, I am
running a Mintex setup at the moment which seems a slight improvement and a better bite, but I can still smoke and bake the pads under heavy driving, but for n0bbing around and normal use they are spot on.
What mintex discs and pads are you using mate? Nobbing around and normal driving, that's the setup I need :wink:
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Just a front mintex disc and pad kit off ebay, Payed around £65...
This may be them but don't quote me on it as its a quick rough search. http://cgi.ebay.co.uk/VW-GOLF-MK4-2-8-V6-FRONT-BRAKE-DISCS-MINTEX-PADS-312m-/160593269961?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item25641ad4c9 I'm sure someone can confirm if this is correct or not.
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Mintex pads are another good choice.
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Brake fluid :smiley:
what brake fluid do I need?
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What do you do with the car, do you plan to track/race or it's just your daily road car. Motul RBF 600 or just factory spec stuff from GSF.
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What do you do with the car, do you plan to track/race or it's just your daily road car. Motul RBF 600 or just factory spec stuff from GSF.
just weekends and the odd day in the week really.
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Whatever VW spec then, otherwise you're just wasting your dollar.