Jim, if they fit, run them.


Please report back on your results.


Pwdrhound knows more about this then I do but, My opinion, a 1mm offset in regards to caliper clearance shouldn't be an issue. Just from memory, I think I have around 5mm on both side with the stock setup. 1mm to one side should be okay from an operation stance.


Caliper not being centered would offset itself by brake channel pressure.


Just remember, this wouldn't be OEM by any extent. If it works, I think we all may be interested in the results.


You may find that the inner or outer brake pad may possibly wear faster.

 

Sounds good Jimbo mail me if he does

 

This is exactly what my indie said but Powdrhound changed my mind. I trust powdrhounds endless experience.

 

More reps for you Jimbo great overall post

 

Well, im not here to challenge Pwdrhound's 996 or 997 knowledge but, if, you decided to move forward with your decision, what would one expect?


I believe that everything would be fine by the numbers presented.


BTW, Pwdrhound is a very good friend of mine. Just like to challenge the "impossible" at times.

 

Thanks Tim, I'll keep you posted.

Yeah I almost accepted it, the fit looked really good, I drove it for a short distance and felt fantastic but 3 strikes and its out, well... 3 very experienced members anyway, Pwdrhound, Rob and Kevin (UMW) changed my mind for me.

 

IMHO, brakes are too important to not set up right. The problem with even a 1.5mm difference in offset does not come into play with full thickness pads but could be an issue of you were to run the pad down to the backing plate or if you had a brake pad fail as I have had happen to me. The brake pad friction material detached from the backing plate and completely slid out of the caliper. The pistons than have to extend out to basically their maximum to compress the thin backing plate against the rotor. If the rotor is offset an extra 1.5mm away from that side of the caliper, you may actually have the pistons come out completely out of the caliper body. That will result is a total brake failure as your pedal will completely go to the floor. This is not what you want. I'd sell the GT3 rotors and get OEM TT rotors which are dirt cheap anyway. Do it right or don't do it at all. That's my moto... I've learned the hard way before..

Hey Elite, how's the smoke system working on your car? I gotta check it out...

 

Thanks for explaining John and I totally get it.
So the rear GT3 996.2 rotors are fine but the fronts need to be 997TT with GT3 rotors, spacers not required.

 

The rear 350 rotors are all the same on the 6/7TT, 6/7GT2, 6/7GT3 and 6Cup

Front rotors must be 350 TT versions.

 

Oops meant fronts need to be 997TT rotors with GT3 calipers.

 

Thanks Jimbo and Hound thats what I thought.

 

Glad you are not accepting it with GT discs and are going TT versions, only way I'd accept it


+1, exactly what I was talking about over on RL. I might measure piston heights over the winter and see if there is a safety margin here....is there anyone with experience running the mismatch brakes down to the backers?




Can also use Panamera rear discs


Cheers,
Rob

 

He's asked for an extra $300AUD = $216USD for the 2 front 997T rotors, he said they cost him double that but is prepared to split the cost. Is it OK to use lightly used old pads with new rotors? I will also ask if he cut the pins on the pads, if he did then no go like Rob said.

So all up incl install $2800AUD = $2014USD

 

He said he didn't cut pad pins but knocked them back a little, does this sound ok?

EDIT; He's pressed the pins down a fraction, I'm assuming this is OK?

 

$300 aud for two 997T discs is ok Jimbo the four I bought from Pelican few months back cost me around $750 shipped no idea about the pins though