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DIY: Brake rotor replacement (front)

Originally Posted by kannibul Where did you get the rotor / cost? http://www.the370z.com/suspension-br...ake-lines.html Good service.

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Old 06-25-2009, 12:53 PM   #16 (permalink)
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Originally Posted by kannibul View Post
Where did you get the rotor / cost?
Stoptech Rotors, Hawk Pads, CZP Brake Lines, >>

Good service.
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Old 10-17-2009, 06:13 PM   #17 (permalink)
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Have you noticed any improvement in braking performance with the change? I did a track day earlier this year and a dealer had a demo 370 that a pro driver was giving hot lap rides in. The rotors were scored beyond recognition. I'm curious if it's a brake pad issue or a $hitty stock sport package rotor issue.

What do you think?
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Old 10-17-2009, 08:32 PM   #18 (permalink)
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Have you noticed any improvement in braking performance with the change? I did a track day earlier this year and a dealer had a demo 370 that a pro driver was giving hot lap rides in. The rotors were scored beyond recognition. I'm curious if it's a brake pad issue or a $hitty stock sport package rotor issue.

What do you think?
I think its the pads, not the rotors. I did the same to my rears with stock pads and had HP+ on the fronts and the front rotors looked brand new, rears were garbage. I have the rotora slotted ones from Z1 motorsports now.
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Old 10-21-2009, 05:27 PM   #19 (permalink)
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I think the slotted rotors help resist scoring, any material they gets stuck between the pad and the rotor gets swept away by the slots. There was no improvement in braking performance. To improve track braking performance you need high-temperature pads. The think the stock pads are about right for the street, not too much dust and good grip without being grabby.
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Old 04-05-2010, 03:33 PM   #20 (permalink)
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Really well done write-up - I'll be using this soon. +1 rep.
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Old 06-05-2010, 08:37 PM   #21 (permalink)
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I didn't find it necessary to remove the brake pads.
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Old 12-05-2010, 10:05 AM   #22 (permalink)
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I am getting ready to replace my rotors. Is it necessary to remove the brake pads or not? Thanks
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Old 12-05-2010, 10:08 AM   #23 (permalink)
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If the replacement rotors have an identical or fractionally thinner thickness then it shouldn't be necessary to remove the pads, however it will be a tight fit.
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Old 12-05-2010, 10:11 AM   #24 (permalink)
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great, thanks for the quick response
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Old 01-01-2011, 03:48 PM   #25 (permalink)
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Ok, I'm to the point of taking the rotor off and its not budging - was wondering what exactly the bolt is that is circled in red in this picture:



Does that need to be removed to get the rotor off?

Thanks!
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Old 01-01-2011, 04:07 PM   #26 (permalink)
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Originally Posted by LinPark View Post
Ok, I'm to the point of taking the rotor off and its not budging - was wondering what exactly the bolt is that is circled in red in this picture:



Does that need to be removed to get the rotor off?

Thanks!
That bolt is just a spacer and is screwed into the rotor. It does not need to be removed or replaced, it is just there to prevent someone from installing a rear wheel on the front.

If it is not budging just try and get a little more aggressive with the rubber mallet. Spray some penetrating spray in between the hub and the rotor.

I worked on an old Ford a few years ago where the rotor had basically welded itself to the hub. I was hitting it with a 20lb sledge hammer (didn't care at that point) and there was no way it was coming off. I tried drilling and tapping the rotor and using bolts to try and push it off, no joy, they just snapped. In the end I had to remove the wheel hub from the spindle (another joy) and throw them both away together.

Yours isn't that old so a few good whacks should do it. Add some high temp anti-seize to the hub face for the new rotor.
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Old 01-01-2011, 04:38 PM   #27 (permalink)
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Quote:
Originally Posted by ChrisSlicks View Post
That bolt is just a spacer and is screwed into the rotor. It does not need to be removed or replaced, it is just there to prevent someone from installing a rear wheel on the front.

If it is not budging just try and get a little more aggressive with the rubber mallet. Spray some penetrating spray in between the hub and the rotor.

I worked on an old Ford a few years ago where the rotor had basically welded itself to the hub. I was hitting it with a 20lb sledge hammer (didn't care at that point) and there was no way it was coming off. I tried drilling and tapping the rotor and using bolts to try and push it off, no joy, they just snapped. In the end I had to remove the wheel hub from the spindle (another joy) and throw them both away together.

Yours isn't that old so a few good whacks should do it. Add some high temp anti-seize to the hub face for the new rotor.
I'm actually using this write-up to install H&R 15mm spacers on the front - both ModShack and wheee refer to it in their write-ups for spacer installs - that bolt now has me worried because the spacers won't go in with that piece still in place. Are guys just removing that thing completely when they install the new spacers?

I'll hit the rotor with the penetrating spray and let it sit overnight.

Thanks!
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Old 01-01-2011, 05:12 PM   #28 (permalink)
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Originally Posted by LinPark View Post
I'm actually using this write-up to install H&R 15mm spacers on the front - both ModShack and wheee refer to it in their write-ups for spacer installs - that bolt now has me worried because the spacers won't go in with that piece still in place. Are guys just removing that thing completely when they install the new spacers?

I'll hit the rotor with the penetrating spray and let it sit overnight.

Thanks!
Yes, just take that thing off, it is useless. I also use the H&R 15mm spacers for the stock wheels.
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Old 01-01-2011, 05:53 PM   #29 (permalink)
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Yup, what he said about the screw and mallet. Really smack the crap out of the rotor, no joke.
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Old 02-22-2011, 10:16 PM   #30 (permalink)
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Hello ChrisSlicks,
Just wanted to say thanks for your DIY thread, it was very helpful to me when replacing my stock rotors with the stoptech ones. I got the zinc plated because several folks complained about the rust in the rotor vents. Just in case anybody is debating on doing this the only thing I can say it that when you remove the rear rotors don't forget to release the e-brake. I forgot I had it engaged and pulled on the rear rotor and it caused the ABS sensor to move which in turn caused my ABS and stability control lights to come on after I got it all put back together. I have since fixed it but figured others may want to avoid a simple issue like that.
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