Hi guys,

I've been a long time lurker and a new member to the forum. I'm planning to get into an 05-07 911 C2S and am doing as much research as i can to understand more on the car.

I've did quite a bit of research in regards to the RMS and IMS problem and from the general consensus, most people agree that, due to the beefier IMS bearing on the MY06+ car, owners of MY06 cars seem to less likely to encounter the IMS failure problem.

I've read quite in depth into the IMS article posted by LN engineering and through reading it, I've come to a few questions specifically regarding to the articles:

"On a new or remanufactured engine built in or after MY06 utilizing the revised M97 IMS, the only "preventative" measure that can be taken short of our retrofit kits is to remove the seal off the front of the IMS bearing, to allow for engine oil to lubricate the bearing"

How difficult is it for a shop to perform such modification? can this be done at the same time when replacing the clutch?

And here comes the question relating a possible turbo upgrade in the future. Keep in mind though I'm not very mechanically savy and do apologize for my ignorance,

"Computer simulation of the 6204 bearing showed that only three ***** are under load at any given time. Hertz stress is moderate. Lube film thickness is very small. Ideally it should be greater than the worst surface finish. Speed is not high enough to develop an elastohydrodynamic film to overcome surface finish/film issue. Fatigue life is high due to relative light load but with no EHD film there will be metal/metal contact and wear. With only three ***** under load at any one time the unloaded ***** will be dragged around by the ball separator. When a ball leaves the loaded zone it will tend to be driven into the separator pocket."

Now, in according to the previous paragraph, does it imply that, with a higher intermediate shaft rpm, the increased speed would be high enough to increase the elastohydrodynamic film formation in lessening the effect of surface contact, that such phenomenon then reduce the wear of the roller ***** inside the bearing, and hence we come to the conclusion that when we drive it like we stole it, the IMS tends to have a lesser chance of failing?

and if such speculation is correct, does it mean that, if tpc turbocharge upgrade is to be considered in the future, this upgrade would not necessarily cause the IMS bearing to fail faster because a higher horsepower engine would cause the IMS rpm to be higher?

Of course, I understand that adding a turbo charge into an N/A engine will stress other part of the engine shortening the general engine life span.

I know that I'm overreacting here but hope to fully educate myself as much as I can in all the preventative actions. I hope you guys can understand~~