liam1 Posted November 24, 2007 Share Posted November 24, 2007 going to change me discs all round on me n/a whats the best oem ones or grooved and where is the best place to buy either. Quote Link to comment Share on other sites More sharing options...
couv3z Posted November 24, 2007 Share Posted November 24, 2007 G3 gooved are nice Traders on here sell them Quote Link to comment Share on other sites More sharing options...
Jurgen-Jm-Imports Posted November 24, 2007 Share Posted November 24, 2007 we can fit them and buy them for you mate Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 OEM are absolutely fine for the job, grooved/drilled discs are inferior to OEM in terms of braking capability. Steve Manley at Inchscape Oxford is the cheapest supplier of these. Quote Link to comment Share on other sites More sharing options...
Wez Posted November 24, 2007 Share Posted November 24, 2007 OEM are absolutely fine for the job, grooved/drilled discs are inferior to OEM in terms of braking capability. Steve Manley at Inchscape Oxford is the cheapest supplier of these. Quote Link to comment Share on other sites More sharing options...
Chris and Alana Posted November 24, 2007 Share Posted November 24, 2007 grooved/drilled discs are inferior to OEM in terms of braking capability. Why is this homer? I keep reading that OEM disk's are better but how/why? Quote Link to comment Share on other sites More sharing options...
Homer Posted November 24, 2007 Share Posted November 24, 2007 Why is this homer? I keep reading that OEM disk's are better but how/why? The grooves in discs are to aid cooling, however, they also decrease the amount of contact area between the pad and the disc, effectively reducing the braking power. This of course is the most important aspect on the road as there is almost no point during day to day driving where the disc is overheating. The time when you *really* need to use them hard (i.e. unexpected hard stop) you want the maximum braking force available from the brake system. On the 'small' OEM discs with Chris Wilson fast road pads I've done a hard stop from 180mph to 30mph without experiencing any fade, therefore in this circumstance grooved discs would have only served to increase the braking distance. On race applications it's obviously a completely different scenario. Quote Link to comment Share on other sites More sharing options...
Chris and Alana Posted November 25, 2007 Share Posted November 25, 2007 Thank's for that Quote Link to comment Share on other sites More sharing options...
Guest Garfy Posted November 25, 2007 Share Posted November 25, 2007 The grooves in discs are to aid cooling, however, they also decrease the amount of contact area between the pad and the disc, effectively reducing the braking power. This of course is the most important aspect on the road as there is almost no point during day to day driving where the disc is overheating. The time when you *really* need to use them hard (i.e. unexpected hard stop) you want the maximum braking force available from the brake system. On the 'small' OEM discs with Chris Wilson fast road pads I've done a hard stop from 180mph to 30mph without experiencing any fade, therefore in this circumstance grooved discs would have only served to increase the braking distance. On race applications it's obviously a completely different scenario. I've got to be honest here mate, i find that hard to believe, yeah ok there is a marginal difference in surface area in contact with the pad, but surely a groove will offer more fricton when passing the pad than what a smooth surface will? Quote Link to comment Share on other sites More sharing options...
Homer Posted November 26, 2007 Share Posted November 26, 2007 I've got to be honest here mate, i find that hard to believe, yeah ok there is a marginal difference in surface area in contact with the pad, but surely a groove will offer more fricton when passing the pad than what a smooth surface will? How would that work? Less surface contact = less contact to the disc = less braking force. The groove is there to allow heat to be released from the disc surface, nothing more. Quote Link to comment Share on other sites More sharing options...
Ian W Posted November 26, 2007 Share Posted November 26, 2007 surely a groove will offer more fricton when passing the pad than what a smooth surface will? As Homer has said, the groove isn't there to provide more friction. Quote Link to comment Share on other sites More sharing options...
Guest Garfy Posted November 26, 2007 Share Posted November 26, 2007 How would that work? Less surface contact = less contact to the disc = less braking force. The groove is there to allow heat to be released from the disc surface, nothing more. come on, we are talking about such a small difference here, yes you are right the groove is there to allow the hot gasses to escape without pushing the pad away from the disc, the groove also helps to remove any glazing of the pad. Quote Link to comment Share on other sites More sharing options...
Guest Garfy Posted November 26, 2007 Share Posted November 26, 2007 As Homer has said, the groove isn't there to provide more friction. no its not, but its a handy side effect wouldn't you say? Quote Link to comment Share on other sites More sharing options...
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