Swapping engines

[mikefocke]

Originally Posted by JFP in PA

I have never been a fan of IMS roller bearings. Contrary to what they advertise, they are not stronger than the ball bearing design, and by far one of the biggest problems in bearing failures is heat buildup, and roller bearings get much hotter than ball bearings. I also cringe at how they want to get oil to the bearings............

Didn't Raby do a roller bearing which was supposed to address the perceived faults of the other common roller bearing IMS? Its write-up of it's advertised benefits might give insight into the possible shortcomings of other offerings.

https://lnengineering.com/products/the-definitive-guide-and-faq-for-porsche-ims-bearings/cylindrical-roller-bearing-ims-retrofit-kits.html

[piper6909]

Originally Posted by mikefocke

Didn't Raby do a roller bearing which was supposed to address the perceived faults of the other common roller bearing IMS? Its write-up of it's advertised benefits might give insight into the possible shortcomings of other offerings.

https://lnengineering.com/products/the-definitive-guide-and-faq-for-porsche-ims-bearings/cylindrical-roller-bearing-ims-retrofit-kits.html

Mike, I didn't know LN offered a roller bearing kit, and after reading from your link I came across a stunning admission/contradiction: "Unlike other commercially available cylindrical roller bearing IMS kits, the RND RS Roller does not require any oil system modifications, so there is no risk of ... oiling efficiency due to pressure losses."

Doesn't the "IMS Solution" require an oil system modification? Things that make you go "hmm."

[JFP in PA]

Originally Posted by piper6909

Mike, I didn't know LN offered a roller bearing kit, and after reading from your link I came across a stunning admission/contradiction: "Unlike other commercially available cylindrical roller bearing IMS kits, the RND RS Roller does not require any oil system modifications, so there is no risk of ... oiling efficiency due to pressure losses."

Doesn't the "IMS Solution" require an oil system modification? Things that make you go "hmm."

Yes, it does, in the form of a spin on oil filter adaptor that controls the amount of oil going to actual Solution bearing. Having run these retrofits for years, I can clearly attest that there is no observable oiling pressure or efficiency problems with the Solution, it simply works as designed; most of the other retrofit "oiling systems" just tap into an existing oil passage and let the oil flow at whatever rate is there rather than trying to control how much is used.