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Originally Posted by JaySVX
How important is it to have drilled and slotted rotors on the SVX? Are the OEM rotors like that, or are they normal? Whiel it's nice to have additional cooling on the breaks, if they're not necessary, i'm not a race car driver, and an extra 200+$ for them doesn't seem worth it. Thanks.
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I'll let you make up your own mind. Here is the URL of the technical data page from a company called Power Stop Extreme Performance
http://www.autospecialty.com/html/co...to_thrive.html
They would certainly want to try and sell you some drilled and slotted rotors, wouldn't they?
Lets take a look at the temperature graph
Even though this graph doesn't show you how hard the brakes were applied, from what speed, or what the time interval was between each brake application was, one thing is immediately apparent,
on the first stop, drilled rotors make no difference at all.
Subsequent stops show a small but growing temperature difference, we know that there must be some shortish time difference between the two stops, as a longer time interval would have allowed the solid rotors to have cooled down. By the time we get to the
15th stop there is a 200 degree temperature difference. How significant is that?
Well lets look at the next graph
The graph shows that there is a reduction in coefficient of friction of about 20% or so, whatever pads you have fitted, so there is some minor 'fade' but not enough to have you running out of leg muscle.
The other graphs are of little interest, and tell you little worth knowing - one of them even has the axes mislabelled.
Bearing in mind that the SVX already has ventilated discs at the front, and at the rear too, outside the USA, how much benefit do you think you are going to get from aftermarket rotors.
Make up your own mind.