These are done. I do not have closeups of the discs but there are cracks on the inner and outer edges. If you can see cracks when two full discs are in view, imagine if I zoomed in to just the disc area.


BTW, selling the hats if anyone is interested. Just pick up new discs to bolt on. Get like new 2-pcs discs for much less than new ones.

 

Holy ****, thats completely foootanged...

 

this one's better. Front PF hats for sale.

 

im completly shocked and have a complete loss for words...

 

cfdfireman1- How much time is on those rotors?

 

Ducting too? Which pad compound?

 

about 15 track days, pads varried from PF 97 & 01 and raybestos st43. yes cooling ducts installed

 

I'm on the fence on whether these PF 2-piece rings should be replaced. I can feel the cracks with my fingernail, but they are not deep. The rotors have been on the car since 2008, but street miles are minimal on them (probably around 7k miles) and they probably have around 15 track days on them running street tires and DTC pads with ducting with under 400 whp. Thoughts?

 

look ok to me. i would replace when the cracks get about 1/4-1/8 from the edge of the rotors. but always bring spare rotors and pads to the track.

 

Look ok to me too.

 

I was always told: if the cracks get near the edges of the rotor or all the way through: time to replace. I've never used cross drilled rotors, but I'd assume if the cracks reach those, it's good to change them too.
If that helps.

 

those are dimples, not cross drilled?