would F-Sport rotor crack under normal driving?

 

that's what i'm wondering too ... if they do, i'd be sorely disappointed, but I highly doubt it .. unless your "normal" driving is track style

 

I hope it wont crack under my "normal driving"

 

Most likely they won't unless you do a lot of top speed runs and brake really hard after them. Very few people need to be concerned about cracking for street driving.

 

LOL, fsport brakes wont crack under street driving!

I have USED and Abused these rotors for a long time now.

Track Use and moderate braking mountain roads (http://www.youtube.com/watch?v=qm1ufEJmqhQ)

I'm surprised those rotors showed cracks, after their first track day.

That is really disappointing.

I think those pads, might have been to aggressive for that rotor?

Oh well, as long as they didn't fall apart!

 

VDIM cooked the rotors. Turning off VSC made a huge difference on day two. The pads got really cooked too. I braked a lot later on day 2 which also helped cooling. CMP is the hardest track for brakes in the Southeast, or so I'm told.

 

I don't think it'll crack under normal street driving. Just if you abused and track with it like crazy.

 

What about the weight difference between the three? The 250's are the smaller of the rotors but do they weigh less than the F-sport ones? With the aluminum hats and cross drilled rotors they should be considerably lighter than the 350's rotors and maybe even weigh in less than the 250's. If this is the case, which it most likely is, then the loss of un-sprung weigh from the front suspension would help with braking, steering response, and even exceleration, to a point anyway. Just something else to consider.

 

I feel much better now, Thanks!!!

 

interesting point. I haven't installed my f-sport brakes yet, but I can tell you they feel very heavy. I don't know how much the IS250 stock brakes weigh. If I had to guess, I'd say the f-sports are heavier, but I'm not 100% sure.

 

brakes installed. love them!

 

Do f-sport brakes come with "braided stainless steel brake line"?

 

Confirm that the F-Sport Rotor will not crack with Street Drive. 1-2 Laps of track also can.

Via the Website they say that come with "braided stainless steel brake line" but after order and received the package, they are not. I had contact the Manu (Stop-Tech) and they confirm that no "braided stainless steel brake line" come with the package. They can use with OEM brake line.

Only one problem was a noise of their Pad when using in street drive. Too loud.

 

no they don't.