I don't know any other details about the German's S2000 wheel failure you mentioned so I couldn't say. Can you tell us anything else about this German wheel failure incident?

Me personally, I wouldn't use any wheel that was powder coated unless it left the factory that way and was done by a wheel company I trust.

The OEM AP2 wheel, is about as overbuilt as a 14.4 lb 15x7 Team Dynamics Pro Race 2.0, which have also failed from PC (they do not weigh 13lbs as TD says they do). So I guess its should not come as a surprise that even a very robust structure could potentially be compromised by improper powder coat.

 

Remember this one guys: https://www.s2ki.com/forums/index.ph...pic=718603&hl=

 

Triple H in Upstate NY has powdercoated his wheels many times - and he's a track junkie.

ETA: I've had my powdercoated wheels on the track. I've powdercoated one set multiple times (well, bought them coated and then coated them again). Still no failures.

Again, PC can be bad for your wheels. It depends on how the wheels are prepped and what temp the PC cures at.

Just because a few people have had wheels crack does not mean that PC is the direct cause.

Please, for everyone's sake, let's attempt to avoid the herd mentality. At least that way we might be able to identify the exact cause, rather than mild speculation.

This is the same thing that happened with ACT and Crankwalk. There are thousands of ACT clutches/PP in S2Ks with 40k+ miles and no crankwalk. A handful of people who (mostly FI, mind you) had crankwalk and the most popular aftermarket clutch setup (ACT) had people thinking ACT was responsible.

(I'm also one of those with an ACT clutch/PP for 50k+ mi and no problems)

Correlation =/= Causation People.

 

What ever is invloved (process) in PCing rims, causes a weaker rim and potential failure.

If done right (your risk, who knows if its done right) it may be OK.

Maybe Im not reading it right but crankwalk had nothing to do with anything other than low oil pressure, right (I didnt do a whole lot of research)?

I dont think the two would compare since PC is directly related to rim failure if done incorrectly.

 

I'm relating the overwhelming "OMG, THIS is the culprit. It just HAS to be" hysteria.

Many things can lead to crankwalk - including a poorly/improperly installed clutch, but that's neither here nor there.


The important bit to remember is that a quality shop is going to keep the temps low and be cautious about how they prep the wheels. This should, therefore, be no worse than using an abrasive chemical stripper and rattle can before spending the day at the track with elevated tire/brake/hub temps.


Again, it's not the PC itself that's bad - it's poor procedure that's the issue (just like it's not the ACT PP that's bad, it's the install/adjustment that is more likely the issue).

 

The metallurgy of the wheel being a source of weakness should not be overlooked.

http://www.youtube.com/watch?v=Armx02_R7Y0

 

Yes, it makes sense if the clutch was installed wrong it would cause problems.
I didnt see poor installation in other posts other than the ACT clutch itself causes crankwalk....it didnt make sense to me.

Im still never going to PC my wheels lol I dont trust others with this work.

 

 

 

Here is a diagram about the "Overaging Issue"