This_Guy 3 Posted December 4, 2019 Hi all, I was just wondering what your thoughts are on brake rotors. Should I continue machining my originals? Get a set of replacement standard rotors or should i go slotted? I have a 2009 Falcon ute that i daily and I just want something that works well. Cheers. Share this post Link to post Share on other sites
bear351c 10,270 Posted December 4, 2019 Slotted and dimpled, are generally better than stock. By now I reckon all front rotors are vented.? Kangaroo paw seems to get the nod, as well. Better pads and fluid will help too. Share this post Link to post Share on other sites
Mr Polson 10,214 Posted December 4, 2019 I ran DBA slotted (T2s) on the front of my FG with no issues. Never got the brake shudder back that the late model Falcons are prone to. Share this post Link to post Share on other sites
This_Guy 3 Posted December 4, 2019 12 hours ago, Mr Polson said: I ran DBA slotted (T2s) on the front of my FG with no issues. Never got the brake shudder back that the late model Falcons are prone to. 13 hours ago, bear351c said: Slotted and dimpled, are generally better than stock. By now I reckon all front rotors are vented.? Kangaroo paw seems to get the nod, as well. Better pads and fluid will help too. Cheers for the quick response, I was reading https://www.onlineautoparts.com.au/cms/brakes/machining-or-replacing-disk-rotors article and I wasn't sure if that was the common thought in regards to going with new rotors over just machining. I will have a look into some slotted new rotors as well as pads and fluid. Share this post Link to post Share on other sites
bear351c 10,270 Posted December 5, 2019 No probs. Have seen brand new rotors with run-out, (need machining) out the box. You just never know...... Usually, car companies put on the softest, quietest, cheapest parts when they sell a vehicle, so if they are original, doesn't mean they're good. 1 YeahNah reacted to this Share this post Link to post Share on other sites
Crazy2287 1,886 Posted December 10, 2019 Goes both ways. I have T2's on mine and wanted them machined. They had no run-out but did have a slight taper due to some heavy abuse. Took it in to be machined at a reputable specialist. Got it back, taper was gone, but now the rotor had run-out that was more than double the factory max tolerance. Took it back and said 'Oi!' They run em up again, but still the run-out was not within factory spec. I know by this point I've wasted man hours pulling thebortors off and putting em back on, and they could not try to mahine again as the rotor would become too thin. They assured me it would be fine, and i got them to sign a receipt and put a 10,000km warranty on it. Just in case it ended up with pulsation or uneven contact and they'd buy me some new T2's. Anyway, morale to the story, with single piece rotor and hubs, it's probably best to just get them replaced. Or have them machined on the car. they are difficult to machine off the car due to the inbuilt bearing cups and require a very accurate jig to get right. 1 bear351c reacted to this Share this post Link to post Share on other sites