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2 piece rotors: Which would you get and why?

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Old Feb 16, 2007, 04:06 PM
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2 piece rotors: Which would you get and why?

Both are available from AMS

Performance Friction:



- or -

Giro Disc:



I'm still considering Racing Brake too:
Old Feb 16, 2007, 04:08 PM
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Giro Disc, but I'm hoping to some day upgrade to Baer EradiSpeed+... those things are lighter than a cup of coffe.
Old Feb 16, 2007, 09:16 PM
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Originally Posted by ShamelessCookie
Giro Disc, but I'm hoping to some day upgrade to Baer EradiSpeed+... those things are lighter than a cup of coffe.
I was told that the Baer Eradispeed was being discontinued for the EVO's since they didnt really sell so well in the import market. For the domestic market they do well, but I dont know. I got my Baer eradispeeds from Geo at EVO store....

still waiting for it to warm up a bit before I install the parts:




Front & Rear Baer Eradispeed + 2 pc floating rotors
Russell SS brake lines
Castrol GT-LMA fluid
Porterfield R4S pads all around
Old Feb 16, 2007, 09:26 PM
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Don''t forget DBA also makes a two piece front rotor for the Evo also.
Old Feb 16, 2007, 09:32 PM
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don't get the drilled ones, if it's gonna be everyday driving, they might have a chance to crack, i would go w/ the slotted ones
Old Feb 16, 2007, 09:37 PM
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Tom I think they're all great choices. Can't go wrong with any of those. As some mentioned, DBA makes good stuff too.

-Arbi ( guy who asked you about your car and running the 11.0 @ fontana when I was there; we were on the stairs waiting for your car to go by with Paul LOL :P )
Old Feb 16, 2007, 10:27 PM
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Originally Posted by str8kor
don't get the drilled ones, if it's gonna be everyday driving, they might have a chance to crack, i would go w/ the slotted ones
why would drilled rotors crack with just everyday driving? Do you mean track driving?

Originally Posted by Blue Evo 8
I was told that the Baer Eradispeed was being discontinued for the EVO's since they didnt really sell so well in the import market. For the domestic market they do well, but I dont know. I got my Baer eradispeeds from Geo at EVO store....

still waiting for it to warm up a bit before I install the parts:
Is this true, because that would make it really hard for them to keep their no warping or cracking warranty where they replace the rotor? I really want these rotors but if they can't warranty them anymore, what is the point?
Old Feb 16, 2007, 10:47 PM
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Drilled rotors dont handle heat very well. That's why you NEVER see them on a race car.
One of the head guys at Brembo said the only reason they make drilled rotors is because they look cool.
Look at a set of drilled rotors that have been used for a while, or tracked a couple times, you'll notice small cracks at the holes.

Anyway, to the OP, given those choices I would go with Performance Friction, then Giro Disc, and lastly Racing Brake.
Stoptech's two piece rotors would be my first choice, but they dont make them in stock Evo sizes, so you would need to get a BBK with calipers etc..

Last edited by Frenchy4g63; Feb 16, 2007 at 10:50 PM.
Old Feb 16, 2007, 10:49 PM
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Racing Brake two-piece at all four corners for the win.
Old Feb 16, 2007, 10:53 PM
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Of the ones you posted the giro discs are the lightest, something to consider.
Do you want them for tracking the car or for saving weight?
Old Feb 17, 2007, 07:04 AM
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Originally Posted by t51splbb
Don''t forget DBA also makes a two piece front rotor for the Evo also.
+1 for DBAs. The kangaroo paw design is pretty slick to say the least and the build quality excellent. But if your going for weightsavings, like dudical26 said, giro discs are the lightest.

Originally Posted by dragmod
why would drilled rotors crack with just everyday driving? Do you mean track driving?



Is this true, because that would make it really hard for them to keep their no warping or cracking warranty where they replace the rotor? I really want these rotors but if they can't warranty them anymore, what is the point?
Drilled rotors aren't just designed for looks. They were orginally designed to eliminate unsprung weight. However, it's been proven that they do crack under everyday driving. Heat causes metal to expand, drilled rotors causes this expansion to be uneven due to the surface area created inside the hole and,overall, the rotor is experiencing more stress over a smaller mass. For more info this article is pretty decent: Brake Rotors

Last edited by RandomDj; Feb 17, 2007 at 07:19 AM.
Old Feb 17, 2007, 08:13 AM
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Thanks for the input. I like the Giro Discs. That is what the AMS car was running this weekend after they took the wilwoods off.
Old Feb 17, 2007, 08:41 AM
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Also to consider; I read and saw that Stoptech was releasing a two piece stock size rotor for the EVO this spring.
Old Feb 17, 2007, 08:46 AM
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Originally Posted by dragmod
Also to consider; I read and saw that Stoptech was releasing a two piece stock size rotor for the EVO this spring.
I see vendors all the time sell 2 piece stoptech rotors on the vendors forsale section. whats the difference between what they sell and the ones your talking about?
Old Feb 17, 2007, 09:27 AM
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Originally Posted by dudical26
Of the ones you posted the giro discs are the lightest, something to consider.
Do you want them for tracking the car or for saving weight?

I got mine for saving weight, I'm also looking for a place locally that can do cryogenic treatments..... so far i had no luck. I googled cryogenics and came up with places taking sperm donations.... can anyone help?


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