Review: Girodisc Rotors & Raybestos brake pads
Aug 6, 2009, 03:31 PM
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Review: Girodisc Rotors & Raybestos brake pads
Calipers: OEM
Rotors: Girodisc 2-piece slotted rotors (front and rear)
Pads: Raybestos ST43
* No brake ducting yet *
Im going to try to keep this as short and sweet as possible. I race my Evo 9 with Socal NASA in Super Touring. You can read all about that here:
http://www.ednazarian.com
I run Girodisc 2-piece rotors on all 4 corners coupled with Raybestos ST43 pads. I love this setup. The rotors are phenomenal, and the pads match them very well. Not only is the performance great, but the pads and rotors are long lasting.
Currently I am on replacement rotors on the fronts because they finally ran out of life, but the rears are still alive and going strong. So here is a breakdown of how many days i put on the front Girodisc rotors:
6 = Test days (ST41 and ST43)
4 = NASA TTA events (ST41)
2 = NASA TTA Nationals (ST41)
4 = NASA ST2 Races (ST43)
16 = Total
I may have missed a test day or 2, but those are the events I have notes for and recall. So in total, I did 16 days on the front Girodisc rotors. However, during 8-10 of those events I was running the ST41 pads. The 41s are much more aggressive pads compared to the 43s. As much as I liked the 41s, I recommend the 43s over the 41s. Reason is the 41s are more aggressive, so they wear out the rotors more rapidly, and they create more heat. Therefore, if I had only ran the 43s, im confident that I could have gotten anywhere from 2-4 more events. Also keep in mind that the last 4 events I ran were my first 4 Super Touring races. So when I raced on them my front rotors were at the very end of their life. Something else noteworthy, I don’t have brake ducting. I never had any brake ducting during any of those events. However, I recently got brake ducting and will be getting that on before I go race at Nationals.
I am honestly impressed by these Girodisc rotors. The best example I have of these rotors are from my 2 BRP races in April. Here is my thread from my 2 BRP races:
https://www.evolutionm.net/forums/mo...ics-video.html
For a more detailed article you can read about it here:
http://www.ednazarian.com/?p=65
BRP is extremely hard on brakes, and I am impressed as to how these rotors held up during both of my 35 min races without brake ducting. I was fighting intensely against the Mazda GT racecars to keep my position during both races. Who btw can totally out-brake me since their competition weight is around 2,000 lbs. My pedal got soft during both races, but they held up without brake ducting under extreme conditions. Until you race yourself, you will not understand how challenging it is to finish a race, let alone win. The smallest issue can end your race at any moment. If it wasn’t for the Girodisc rotors, I would not have been in a position to fight for the lead against cars that can out-brake me all day. And you have to be able to finish a race to win. Therefore, I would not have been able to win both races if it wasn’t for these Girodisc rotors.
If any of this means something to you, call up Martin at Girodisc and he will answer all your questions. He also sells the Raybestos ST43 pads so you can get all that sorted with him. Martin not only provides great rotors, but he also provides great customer service.
When these rotors ran out of life, Martin sent me another set. Here is my review of my 2nd set:
Girodisc Rotors: Results of 2nd set
Rotors: Girodisc 2-piece slotted rotors (front and rear)
Pads: Raybestos ST43
* No brake ducting yet *
Im going to try to keep this as short and sweet as possible. I race my Evo 9 with Socal NASA in Super Touring. You can read all about that here:
http://www.ednazarian.com
I run Girodisc 2-piece rotors on all 4 corners coupled with Raybestos ST43 pads. I love this setup. The rotors are phenomenal, and the pads match them very well. Not only is the performance great, but the pads and rotors are long lasting.
Currently I am on replacement rotors on the fronts because they finally ran out of life, but the rears are still alive and going strong. So here is a breakdown of how many days i put on the front Girodisc rotors:
6 = Test days (ST41 and ST43)
4 = NASA TTA events (ST41)
2 = NASA TTA Nationals (ST41)
4 = NASA ST2 Races (ST43)
16 = Total
I may have missed a test day or 2, but those are the events I have notes for and recall. So in total, I did 16 days on the front Girodisc rotors. However, during 8-10 of those events I was running the ST41 pads. The 41s are much more aggressive pads compared to the 43s. As much as I liked the 41s, I recommend the 43s over the 41s. Reason is the 41s are more aggressive, so they wear out the rotors more rapidly, and they create more heat. Therefore, if I had only ran the 43s, im confident that I could have gotten anywhere from 2-4 more events. Also keep in mind that the last 4 events I ran were my first 4 Super Touring races. So when I raced on them my front rotors were at the very end of their life. Something else noteworthy, I don’t have brake ducting. I never had any brake ducting during any of those events. However, I recently got brake ducting and will be getting that on before I go race at Nationals.
I am honestly impressed by these Girodisc rotors. The best example I have of these rotors are from my 2 BRP races in April. Here is my thread from my 2 BRP races:
https://www.evolutionm.net/forums/mo...ics-video.html
For a more detailed article you can read about it here:
http://www.ednazarian.com/?p=65
BRP is extremely hard on brakes, and I am impressed as to how these rotors held up during both of my 35 min races without brake ducting. I was fighting intensely against the Mazda GT racecars to keep my position during both races. Who btw can totally out-brake me since their competition weight is around 2,000 lbs. My pedal got soft during both races, but they held up without brake ducting under extreme conditions. Until you race yourself, you will not understand how challenging it is to finish a race, let alone win. The smallest issue can end your race at any moment. If it wasn’t for the Girodisc rotors, I would not have been in a position to fight for the lead against cars that can out-brake me all day. And you have to be able to finish a race to win. Therefore, I would not have been able to win both races if it wasn’t for these Girodisc rotors.
If any of this means something to you, call up Martin at Girodisc and he will answer all your questions. He also sells the Raybestos ST43 pads so you can get all that sorted with him. Martin not only provides great rotors, but he also provides great customer service.
When these rotors ran out of life, Martin sent me another set. Here is my review of my 2nd set:
Girodisc Rotors: Results of 2nd set
Last edited by Bueller; May 30, 2010 at 01:50 PM.
Aug 6, 2009, 03:52 PM
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Aug 6, 2009, 04:25 PM
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Ive ran another 2-piece set prior to the Girodiscs. The Girodiscs are better. They dissipate heat better, they last longer, and they perform better.
Thanks guys!
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Aug 7, 2009, 08:29 PM
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Nice review Ed.
Does anyone know how these pads compare to the Performance Friction PF01s or the Hawk DTC70s? I'm currently running the PF01s and was planning to try out a set of DTC70s but these seem like the "hot ticket" right now.
Does anyone know how these pads compare to the Performance Friction PF01s or the Hawk DTC70s? I'm currently running the PF01s and was planning to try out a set of DTC70s but these seem like the "hot ticket" right now.
Aug 7, 2009, 11:12 PM
#12
Nice review!
I'm going to purchase some 2 piece front rotors for my Evo X within the next month or so as well. I'm running Magic Pads on the street and the ST43 pads at HPDE at Watkins Glen. So far they are a great product line and I couldn't be happier. Custom brake ducting similar to AMS's setup is in the works as well.
I'm going to purchase some 2 piece front rotors for my Evo X within the next month or so as well. I'm running Magic Pads on the street and the ST43 pads at HPDE at Watkins Glen. So far they are a great product line and I couldn't be happier. Custom brake ducting similar to AMS's setup is in the works as well.
Aug 8, 2009, 05:43 AM
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Very nice review, what would you recommend for a street set up with an occasional HPDE?
Right now I have the stock setup which will be due to be changed soon, so i am planning ahead and trying to figure out the best setup!
If I can get more life out of the stock rotors i would love it just from an economic aspect
will appreciate the input!
THX
Right now I have the stock setup which will be due to be changed soon, so i am planning ahead and trying to figure out the best setup!
If I can get more life out of the stock rotors i would love it just from an economic aspect
will appreciate the input!
THX
Aug 8, 2009, 11:47 AM
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Very nice review, what would you recommend for a street set up with an occasional HPDE?
Right now I have the stock setup which will be due to be changed soon, so i am planning ahead and trying to figure out the best setup!
If I can get more life out of the stock rotors i would love it just from an economic aspect
will appreciate the input!
THX
Right now I have the stock setup which will be due to be changed soon, so i am planning ahead and trying to figure out the best setup!
If I can get more life out of the stock rotors i would love it just from an economic aspect
will appreciate the input!
THX