ATR carriers and Discs upgrade.
Posted: Thu Feb 08, 2018 2:16 pm
Just for anyone that is interested. I recently upgraded the ludes brakes as they was fading. I paid £20 for some ATR (accord type r) carriers. They bolted right up with the standard prelude caliper. No need to bleed. Then the ATR discs also was a straight bolt on which cost about £100 with ATR pads (also fit right in the lude calipers). The performance is greatly improved.
Differences in the disc is the reason.
282mm old to 300mm new is a 6.5% increase in size therefore leverage. Not night and day but helps.
But the thickness is were it at, which helps fade as has alot more cooling:
Prelude 23mm vs ATR 28mm is 22% thicker giving lots better cooling reducing fade.
I wish i took a photo of the disc thickness next to each other it really is a huge difference. As the cooling fins/veins are lots bigger and the disc face itself looks the same thickness as the lude. Ok im off to photoshop to make a diagram lol..
Ok so the difference in the middle where the cooling veins are is from:
8mm standard lude discs to 13mm ATR discs which is about 63% better cooling
Diagram: (might not be 100% accurate but you get the idea)

Hope this helps others who want a cheap brake upgrade which makes a big difference without having to bleed your brakes. Which for an average mechanic can be quite daunting. This took me less than a hour to do on a driveway. So even a DIY mechanic could have this done quickly. Maybe a hour a side if its your first time doing brakes.
Thanks.
Differences in the disc is the reason.
282mm old to 300mm new is a 6.5% increase in size therefore leverage. Not night and day but helps.
But the thickness is were it at, which helps fade as has alot more cooling:
Prelude 23mm vs ATR 28mm is 22% thicker giving lots better cooling reducing fade.
I wish i took a photo of the disc thickness next to each other it really is a huge difference. As the cooling fins/veins are lots bigger and the disc face itself looks the same thickness as the lude. Ok im off to photoshop to make a diagram lol..
Ok so the difference in the middle where the cooling veins are is from:
8mm standard lude discs to 13mm ATR discs which is about 63% better cooling

Diagram: (might not be 100% accurate but you get the idea)

Hope this helps others who want a cheap brake upgrade which makes a big difference without having to bleed your brakes. Which for an average mechanic can be quite daunting. This took me less than a hour to do on a driveway. So even a DIY mechanic could have this done quickly. Maybe a hour a side if its your first time doing brakes.
Thanks.