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  #1  
Old January 1st, 2010, 01:02 PM
beachrover
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Brian
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Question brakes

are drilled and sloted ant better then OEM? do they vibrate?
pros & cons
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  #2  
Old January 1st, 2010, 01:15 PM
imeek
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Drilled and slotted rotors are primarily used to dissipate heat, to ensure that the brakes are working within operating temperatures. Most people just get them for looks. On the down side, cheap drilled rotors can crack. If anything, I would think that slotted/drilled rotors would just allow mud, dirt, and sand to accumulate easier on the brakes.
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  #3  
Old January 1st, 2010, 04:03 PM
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Quote:
Originally Posted by beachrover
are drilled and sloted ant better then OEM? do they vibrate?
pros & cons
Just buy brembo brand or genuine land rover stock rotors.
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  #4  
Old January 1st, 2010, 04:41 PM
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Daniel Marcello
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I have EBC rotors with Green pads. They work well but the pads wear away quick. If you want slotted/drilled I would go with the EBC rotors but go with OEM pads as they won't wear a lot. Mine don't get clogged as much as you would think and I do a lot of mud, water driving.

In the wet they take a bit to heat up and dry. But once they are heated up they stop on a dime. I only bought them because I do a lot of bumper to bumper driving in New York and a quick stop is needed since I drive it like a stolen Porsche.
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  #5  
Old January 21st, 2010, 10:21 AM
joetz
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joe tzougrakis
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Does anyone know of a way of upgrading the braking system? Is there a ceramic pad available? Bigger calipers I could upgrade to? A big brake kit? My defender 90 has some really scary fade, especially when the truck is loaded up. I've almost barely avoided some accidents. Could I put calipers from the 110 in?
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  #6  
Old January 21st, 2010, 10:36 AM
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There is something wrong with the system or how you are driving.
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  #7  
Old January 21st, 2010, 01:12 PM
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Quote:
Originally Posted by joetz View Post
Does anyone know of a way of upgrading the braking system? Is there a ceramic pad available? Bigger calipers I could upgrade to? A big brake kit? My defender 90 has some really scary fade, especially when the truck is loaded up. I've almost barely avoided some accidents. Could I put calipers from the 110 in?
Yeah this sounds weird. Can you lock up the brakes? Does the pedal go tot he floor with no lock up? My truck is loaded up heavy and I do some fast braking and can usually get them to stop on a dime. If I press hard enough I can lock them easy.

Have you bleed the system correctly?
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  #8  
Old January 22nd, 2010, 12:03 AM
joetz
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joe tzougrakis
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No matter how hard I stand on them, lockup is impossible. Everything is in proper working order, brakes were bled, pistons in all the calipers move freely and the modulation is good and the truck doesn't pull right or left. I just need more braking power. Did the defender 110 come with different calipers than the defender 90? I am thinking about putting 110 calipers. What do you guys think?
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  #9  
Old January 22nd, 2010, 08:31 AM
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Try braking then taking your foot off the brake then back on again. Pretty sure you'll lock them up then. My brakes do the same as yours do and I just do as I said above.
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  #10  
Old January 24th, 2010, 12:30 PM
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joe tzougrakis
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I think the problem is the drilled rotors I put in cut down on the available surface area I have for braking. Going back to the original rotors might fix the problem, but it would be so much easier to come up with a caliper/pad solution because the rotors are tough to change and I did spend quite a bit on them.
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  #11  
Old January 24th, 2010, 12:44 PM
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barry f
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Are brembo rotors good. Four Oaks uses them instead of genuine. They claim quality control with genuine is garbage and half of them come warped.
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  #12  
Old January 24th, 2010, 02:36 PM
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Quote:
Originally Posted by joetz View Post
No matter how hard I stand on them, lockup is impossible. Everything is in proper working order, brakes were bled, pistons in all the calipers move freely and the modulation is good and the truck doesn't pull right or left. I just need more braking power. Did the defender 110 come with different calipers than the defender 90? I am thinking about putting 110 calipers. What do you guys think?
Actually, the D90 brakes are the improved version over the 110's, both front and rear. The D90's went to vented rotors in the front, and upgraded from drums to discs in the rear. Front calipers are ALMOST the same between the two, the D90 versions just have a spacer to fit the wider rotors. I do find it odd that you aren't getting enough braking strength, we've actually got some really strong brakes in these things with good 4-piston calipers in the front and dual pistons in the rear.

What kind of pads are you using? I'm going to guess and say semi-metallic? Try going with either a stock type fiber, or a ceramic pad for better grip. Ceramics cost more, but perform better and last longer.... making them more cost effective in the long run. (Not sure which brand to recommend for a D90, always use factory pads.) Have you change tire/rim sizes? Bigger tires need more braking strength, and bigger rims are even worse in this regard.

-Hans
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  #13  
Old January 31st, 2010, 07:08 PM
joetz
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joe tzougrakis
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Quote:
Originally Posted by Hans View Post
Actually, the D90 brakes are the improved version over the 110's, both front and rear. The D90's went to vented rotors in the front, and upgraded from drums to discs in the rear. Front calipers are ALMOST the same between the two, the D90 versions just have a spacer to fit the wider rotors. I do find it odd that you aren't getting enough braking strength, we've actually got some really strong brakes in these things with good 4-piston calipers in the front and dual pistons in the rear.

What kind of pads are you using? I'm going to guess and say semi-metallic? Try going with either a stock type fiber, or a ceramic pad for better grip. Ceramics cost more, but perform better and last longer.... making them more cost effective in the long run. (Not sure which brand to recommend for a D90, always use factory pads.) Have you change tire/rim sizes? Bigger tires need more braking strength, and bigger rims are even worse in this regard.

-Hans
I'm running EBC brake pads. I put them in a while ago and can't remember what color they were. I believe EBC red stuff was what I used. I would love to try ceramic pads. I put axxis ceramic pads in a 2003 Range Rover I had and I was blown away by the improvement in stopping performance, but axxis ceramic pads are not available for defenders. Can anyone recommend a ceramic pad for the defender? I'm desperate for solutions.
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  #14  
Old February 1st, 2010, 12:00 AM
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my non abs rrc will out stop my defender any day
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  #15  
Old February 1st, 2010, 02:03 AM
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Originally Posted by rover4x4 View Post
my non abs rrc will out stop my defender any day
Not surprised. Take a look at the size of the brake booster on the RRC and then compare it to the skinny little wimpy thing on the 90......
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  #16  
Old February 10th, 2010, 10:12 PM
joetz
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joe tzougrakis
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Originally Posted by ipgregory View Post
Not surprised. Take a look at the size of the brake booster on the RRC and then compare it to the skinny little wimpy thing on the 90......
There's an idea! Can I swap in a Range Rover County Brake booster?
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