First time I heard of this theory... IMS

[BirdDog]

JFP - some people I know are known to have more than one! LOL

356Guy - I've read that tips have a lower incidence of IMS bearing failure. As far as the higher revs better lubricating a ball bearing based IMS bearing - I'd question that. I remember seeing a Pedro video where he spun an IMS bearing up in oil. At higher RPMs oil is slung out of the bearing and the bearing was shown to be running dry. I won't base a theory on one test, but it sure had me thinking.

I ended up going with Jake Raby's IMS Solution. The permanent nature of the design (it doesn't use ball bearings) made sense to me, plus at higher RPMs there would be increased oil pressure which would better lubricate that type of bearing.

Originally Posted by JFP in PA

Theories are like butt holes; everyone has one..........

[356Guy]

Originally Posted by BirdDog

...356Guy - I've read that tips have a lower incidence of IMS bearing failure. As far as the higher revs better lubricating a ball bearing based IMS bearing - I'd question that. I remember seeing a Pedro video where he spun an IMS bearing up in oil. At higher RPMs oil is slung out of the bearing and the bearing was shown to be running dry. I won't base a theory on one test, but it sure had me thinking.
....

Yeah I saw that demo. I worked in the rotating equipment business for 20 years. Most of the equipment had splash lube bearings which worked very well. Others ran in an oil mist. The bearing needs very little oil. Too much isn't good either. Small amounts of moisture in the oil is a killer too. LN's bearings are open on the exposed side right? They seem to run fine even though the engine was not designed for a splash lube bearing.

ps I'm going to talk myself out of buying a Boxster at this rate

[JFP in PA]

Originally Posted by BirdDog

JFP - some people I know are known to have more than one! LOL

356Guy - I've read that tips have a lower incidence of IMS bearing failure. As far as the higher revs better lubricating a ball bearing based IMS bearing - I'd question that. I remember seeing a Pedro video where he spun an IMS bearing up in oil. At higher RPMs oil is slung out of the bearing and the bearing was shown to be running dry. I won't base a theory on one test, but it sure had me thinking.

I ended up going with Jake Raby's IMS Solution. The permanent nature of the design (it doesn't use ball bearings) made sense to me, plus at higher RPMs there would be increased oil pressure which would better lubricate that type of bearing.

Oil pressure is not what keeps the IMS Solution happy, it is oil volume......