TurboedVolvo Posted December 26, 2009 Report Share Posted December 26, 2009 Nice you got yourself the best stuff out there Agreed, AP is an excellent brand. Try not to slam your face into the steering wheel on hard stops! (even though thats the best part!) :ph34r: Link to comment Share on other sites More sharing options...
Rex Posted December 26, 2009 Author Report Share Posted December 26, 2009 What's the pro's of slotted rather than cross-drilled? More cleaning up-keep for track use? The Volvo is my daily driver and dog-mobile, it's far too heavy and long-legged for track use. I can afford neither the brakes nor the tyres needed for each track outing anyway! A Lotus Elise is much cheaper and much more fun for track use.....and the discs are cross-drilled and not slotted front and rear!! Link to comment Share on other sites More sharing options...
Che'_Moderator Posted December 26, 2009 Report Share Posted December 26, 2009 What's the pro's of slotted rather than cross-drilled? More cleaning up-keep for track use? The Volvo is my daily driver and dog-mobile, it's far too heavy and long-legged for track use. I can afford neither the brakes nor the tyres needed for each track outing anyway! A Lotus Elise is much cheaper and much more fun for track use.....and the discs are cross-drilled and not slotted front and rear!! I prefer drilled. They will crack if over heated but non-drilled will do the same. On a street car you should be fine, and on a track car you are going to replace the discs like once a week anyways. Looks good. I would not worry about them being drilled. Link to comment Share on other sites More sharing options...
JCviggen Posted December 26, 2009 Report Share Posted December 26, 2009 I was under the impression floating rotors were supposed to have lateral float rather than radial to dampen out some of the vibration http://www.carbibles.com/brake_bible.html And drilled will have a considerably shorter life expectancy than slotted, while giving very little benefit. I've cracked a (heat treated) drilled rotor in 2 after a track day with little to no advance warning in the form of hairline cracks. Structural integrity of a slotted one is simply better even if it is fractionally heavier. Link to comment Share on other sites More sharing options...
Dammit Posted December 26, 2009 Report Share Posted December 26, 2009 These fit fine behind 17" Volans: Link to comment Share on other sites More sharing options...
TurboedVolvo Posted December 26, 2009 Report Share Posted December 26, 2009 I was under the impression floating rotors were supposed to have lateral float rather than radial to dampen out some of the vibration http://www.carbibles.com/brake_bible.html And drilled will have a considerably shorter life expectancy than slotted, while giving very little benefit. I've cracked a (heat treated) drilled rotor in 2 after a track day with little to no advance warning in the form of hairline cracks. Structural integrity of a slotted one is simply better even if it is fractionally heavier. Hands down, Drilled rotors just create stress risers and obviously would have a shorter life span that slotted or solid :pizza: Link to comment Share on other sites More sharing options...
Che'_Moderator Posted December 26, 2009 Report Share Posted December 26, 2009 I was under the impression floating rotors were supposed to have lateral float rather than radial to dampen out some of the vibration http://www.carbibles.com/brake_bible.html And drilled will have a considerably shorter life expectancy than slotted, while giving very little benefit. I've cracked a (heat treated) drilled rotor in 2 after a track day with little to no advance warning in the form of hairline cracks. Structural integrity of a slotted one is simply better even if it is fractionally heavier. Thats if you are worried more about deflection. Expansion should be way more of a worry than deflection in a racing set up. The article you linked to was taking about on a bike. Bikes have most less rigid rotors obviously. I agree that drilled have a shorter life but as I said, on a street car its never gonna matter, and on the track you are replacing dics all day anyways. Hands down, Drilled rotors just create stress risers and obviously would have a shorter life span that slotted or solid Slotted crack too, as do solids. Its not that big of an issue if you keep an eye on them. Link to comment Share on other sites More sharing options...
JCviggen Posted December 26, 2009 Report Share Posted December 26, 2009 There's track use, and competition track use...I think most of us will stick to the first And sure you CAN crack slotted or plain discs, but it will normally happen way, way later in the wear cycle. I have seen AP drilled discs "connecting holes" after only a few laps on track. GOOD drilled discs will last a lot longer, but still not quite as long as a slotted one. Thereby reducing the risk of the thing coming apart on you. Link to comment Share on other sites More sharing options...
Che'_Moderator Posted December 26, 2009 Report Share Posted December 26, 2009 There's track use, and competition track use...I think most of us will stick to the first And sure you CAN crack slotted or plain discs, but it will normally happen way, way later in the wear cycle. I have seen AP drilled discs "connecting holes" after only a few laps on track. GOOD drilled discs will last a lot longer, but still not quite as long as a slotted one. Thereby reducing the risk of the thing coming apart on you. Agreed. But I still don't think those are floating :P Link to comment Share on other sites More sharing options...
JCviggen Posted December 26, 2009 Report Share Posted December 26, 2009 Lets call it a 2-piece rotor then lol..its impossible to see how much lateral float they allow, if any, and there's no AP spec on it so we can leave it there :D Link to comment Share on other sites More sharing options...
Che'_Moderator Posted December 26, 2009 Report Share Posted December 26, 2009 Lets call it a 2-piece rotor then lol..its impossible to see how much lateral float they allow, if any, and there's no AP spec on it so we can leave it there There are no slots, sliders or bobbins I can see. I ran the PN for the rotor that comes with the kit and its non-floating. Unless I have the wrong PN CP3580-294/295RD Link to comment Share on other sites More sharing options...
dublin14 Posted December 27, 2009 Report Share Posted December 27, 2009 There's track use, and competition track use...I think most of us will stick to the first And sure you CAN crack slotted or plain discs, but it will normally happen way, way later in the wear cycle. I have seen AP drilled discs "connecting holes" after only a few laps on track. GOOD drilled discs will last a lot longer, but still not quite as long as a slotted one. Thereby reducing the risk of the thing coming apart on you. The track ready C6 Z06 i race with a friend took ages to crack the stock drilled rotors, and that was all Time Trial racing abuse, well made i guess? Now theres the full 15"Grand Turismo kit with the slotted rotors and so far have lasted longer than the x drilled! But depending on who makes them, slotted can take some decent track abuse from what ive seen! but i agree slotted are better for the track! The track ready C6 Z06 i race with a friend took ages to crack the stock drilled rotors, and that was all Time Trial racing abuse, well made i guess? Now theres the full 15"Grand Turismo kit with the slotted rotors and so far have lasted longer than the x drilled! But depending on who makes them, slotted can take some decent track abuse from what ive seen! but i agree slotted are better for the track! I meant to say "drilled can take some decent track abuse" Link to comment Share on other sites More sharing options...
AverageVolvo Posted December 27, 2009 Report Share Posted December 27, 2009 Noob question What makes these cost nearly double the cost of Porsche BBK Is it just weight reduction??? OR??? Link to comment Share on other sites More sharing options...
Che'_Moderator Posted December 27, 2009 Report Share Posted December 27, 2009 Noob question What makes these cost nearly double the cost of Porsche BBK Is it just weight reduction??? OR??? They make 1000 a year not 200000. Link to comment Share on other sites More sharing options...
AverageVolvo Posted December 27, 2009 Report Share Posted December 27, 2009 They make 1000 a year not 200000. And??? How does their limited production warrant double the cost. What is better about them?? Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.