OT: S65 rod bearing failure cure?

MaynardZed · 02-26-2020, 09:41 PM

My racing buddy, inventor, mechanical engineer has developed a possible cure for the rod bearing issue on the S65. His research has identified two problems. You cannot fix only one, you must solve both. Problem 1 is the BMW bearing itself (it’s too round), clevite has solved this problem. Problem 2 is oil starvation at the bearing. The stock oil pump does not provide enough oil Volume (not oil pressure) above 4500 rpms. Mike has developed a modification of the oil pump gears too solve this issue. Stay tuned for product availability. The first few production oil pump gears are just rolling off his CNC machine now.

https://srd-eng.com/bmw-products/

Be sure to click on Mike’s eng. report if you’re a tech nerd. Won’t be nearly as bad as when I saw his white board in his office with all sorts of advanced mathematics problems on it.

DRLane · 02-28-2020, 12:38 PM

This is very interesting - Would recommend posting this to the e9x forum for better visibility. I'm very interested in tracking this should it prove to provide the requisite oil pressure at high RPM especially for FI S65s.

Thank you for posting!

MaynardZed · 02-29-2020, 02:48 PM

Quote:

Originally Posted by DRLane

This is very interesting - Would recommend posting this to the e9x forum for better visibility. I'm very interested in tracking this should it prove to provide the requisite oil pressure at high RPM especially for FI S65s.

Thank you for posting!

Yeah I'll post it E9X areas once he gets more gears produced. Also, I don't want him to get inundated until he finishes my dirt bike's suspension.

02-26-2020, 09:41 PM	#1
MaynardZed Lieutenant Colonel 1231 Rep 1,789 Posts Drives: wife crazy Join Date: Jul 2014 Location: Phoenix iTrader: (0) Garage List 2019 Ford Raptor [0.00] 2016 Porsche 991.1 ... [0.00] 1987 Chevy Camaro I ... [0.00] 1972 Chevy Corvette [0.00] 1999 BMW M3 race car [0.00]	OT: S65 rod bearing failure cure? My racing buddy, inventor, mechanical engineer has developed a possible cure for the rod bearing issue on the S65. His research has identified two problems. You cannot fix only one, you must solve both. Problem 1 is the BMW bearing itself (it’s too round), clevite has solved this problem. Problem 2 is oil starvation at the bearing. The stock oil pump does not provide enough oil Volume (not oil pressure) above 4500 rpms. Mike has developed a modification of the oil pump gears too solve this issue. Stay tuned for product availability. The first few production oil pump gears are just rolling off his CNC machine now. https://srd-eng.com/bmw-products/ Be sure to click on Mike’s eng. report if you’re a tech nerd. Won’t be nearly as bad as when I saw his white board in his office with all sorts of advanced mathematics problems on it. __________________ Road course laptimes for BMW M4 2015 6MT WHP East Track: 1:04.880, Arizona Motorsports Park: 1:54.352 Road course laptimes for Porsche 911 991.1 GTS 7MT WHP East Track: 1:02.770, Arizona Motorsports Park: 1:48.889 Last edited by MaynardZed; 02-26-2020 at 09:49 PM..
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02-28-2020, 12:38 PM	#2
DRLane Brigadier General 3989 Rep 3,409 Posts Drives: E92 M3 Join Date: Oct 2018 Location: Colorado iTrader: (21) Garage List 2008 m3 [6.63]	This is very interesting - Would recommend posting this to the e9x forum for better visibility. I'm very interested in tracking this should it prove to provide the requisite oil pressure at high RPM especially for FI S65s. Thank you for posting! __________________ Not a Doctor, those are just my initials.
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