2006-2008 IMS bearing design opinions

[husker boxster]

Originally Posted by jdraupp

It is Jake Rabys experience that the only 987s you want to avoid are the ones that are heavily tracked.

It's not so much the IMS that fails if heavily tracked. There are issues with oil starvation and bore scoring and rod bolt failures. However, there are ways to prevent these items AND they require certain sequences to occur to create the problems. 'Heavily tracked' generally means R Comp tires and serious mods. Once again, 1 incident and the Internet blows up like a North Korean missile assuming everyone's 987 is going to fail.

They debate 987 IMS failure on P-9 all the time. There's a 12+ pg thread on it that's been alive for 3-4 yrs. Ya know how many confirmed IMS failures there are in that thread? 1. But the hysteria lives on. A guy put up a WTB ad looking for a Cayman with a blown engine. 3 mo later he's still looking. If there are sooo many engine failures, why can't he find one? There must be 1000s of them out there if they're blowing up all the time.

Don't get caught up in the hysteria.

My agenda for the next 2 weekends:
2 day DE at my local track
3 day DE at COTA

[JFP in PA]

Originally Posted by husker boxster

But the hysteria lives on.

I wouldn't bet on that, we have seen them fail, and more than once.

[Giller]

ANYTHING can fail - so there will no doubt be some IMS failures even on the bigger bearing. It will happen - but the odds are extremely low from what we have in evidence so far.
I would still encourage going 2009+ if it's in the budget.