S65 Oil Pump - Changes needed time run extra clearance bearings?

Scharbag · 05-28-2020, 07:03 PM

Came across this today. I am unconvinced. Any experts able to comment on this?

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

Cheers,

SYT_Shadow · 05-28-2020, 07:12 PM

How odd. We have lots of oil pressure data from the S65 that BE ran for a year... i don't recall oil pressure dropping at high rpms.
If i remember correctly, after 2k rpm the pump provided more oil than the engine could use

Redd · 05-28-2020, 07:14 PM

$400 for those two small gears. They better be made from titanium and anodized with the blood of unicorns.

deansbimmer · 05-28-2020, 07:47 PM

I've not seen this before. Interesting. Looks like it's basically an overdrive gear set for the pumps. Overdriving the pumps would cause additional load on the crank, oil pump chains, and drives. Takes HP to run those pumps at 8000rpm. I'm not sold on it, even if you're running thinner oils. Might get a set to test.

Redd · 05-28-2020, 09:44 PM

Isn't the S65 oil pump variable pressure? If you run more volume/pressure, won't the oil pump just reduce to compensate?

Scharbag · 05-29-2020, 12:41 AM

Quote:

Originally Posted by Redd

Isn't the S65 oil pump variable pressure? If you run more volume/pressure, won't the oil pump just reduce to compensate?

Exactly. Based on the data provided by AutoTalent, it seems like the S65 is more than capable of producing acceptable flow while maintaining pressure.

Hopefully deansbimmer will try a set and share the result.

Helmsman · 05-29-2020, 06:19 AM

Always something to worry about. Now when we have increased oil clearance in place, the oil pressure will die on us after 5k rpm. Ah well, back to nanny driving...

This is not at all what BE (Autotalen) suggest. Also, whats up with SRD's suggested 60PSI max pressure while BE read 70PSI+?. Quite significant difference, or do I misunderstand something here? Would be really interesting to listen into a discussions between experts here.

https://www.m3post.com/forums/showthread.php?t=1337998

rhyary · 05-29-2020, 07:06 AM

subscribed

tdott · 05-29-2020, 08:41 AM

http://wiki.rcollins.org/core/index...._Flow_Analysis

Scharbag · 05-29-2020, 09:47 AM

Quote:

Originally Posted by tdott

http://wiki.rcollins.org/core/index...._Flow_Analysis

Exactly.

Scharbag · 08-18-2020, 03:53 PM

Just bumping this in case there is any new information.

Cheers,

//steve\\ · 08-18-2020, 04:10 PM

Quote:

Originally Posted by tdott

http://wiki.rcollins.org/core/index...._Flow_Analysis

Holy Data!!!

tdott · 08-19-2020, 08:03 AM

Quote:

Originally Posted by //steve\\

Holy Data!!!

A whole lot more than 8 points of data and a cheesy graph trying to sell a product.

05-28-2020, 07:03 PM	#1
Scharbag Colonel 2621 Rep 2,138 Posts Drives: 2011 E92 M3 Join Date: Oct 2017 Location: Victoria iTrader: (0) Garage List 2011 BMW E92 M3 [0.00]	S65 Oil Pump - Changes needed time run extra clearance bearings? Came across this today. I am unconvinced. Any experts able to comment on this? https://srd-eng.com/bmw-products/ Cheers, __________________ 2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies...
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05-28-2020, 07:12 PM	#2
SYT_Shadow ///M Powered for Life 11480 Rep 10,328 Posts Drives: E90M/E92M/M4GTS/M4GT4/X5M Join Date: Sep 2010 Location: Greenwich, CT iTrader: (2)	How odd. We have lots of oil pressure data from the S65 that BE ran for a year... i don't recall oil pressure dropping at high rpms. If i remember correctly, after 2k rpm the pump provided more oil than the engine could use __________________ DIY: S65 Rod Bearings E9X PFC Z54 BBK on F8X BK harness bar + seats: fit 6 tires in an M3 do88 Cooling Goodies GTS Twins: GTMore project
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05-28-2020, 07:14 PM	#3
Redd Brigadier General 3897 Rep 4,162 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	$400 for those two small gears. They better be made from titanium and anodized with the blood of unicorns.
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05-28-2020, 07:47 PM	#4
deansbimmer BimmerPost Supporting Vendor 3749 Rep 2,907 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 BMW M3 [0.00] 2013 BMW M3 [0.00] 2011 X5M [0.00] 2011 BMW M3 [0.00]	I've not seen this before. Interesting. Looks like it's basically an overdrive gear set for the pumps. Overdriving the pumps would cause additional load on the crank, oil pump chains, and drives. Takes HP to run those pumps at 8000rpm. I'm not sold on it, even if you're running thinner oils. Might get a set to test.
	Appreciate 2 Scharbag2620.50 BanjoPaterson160.50 Quote

05-28-2020, 09:44 PM	#5
Redd Brigadier General 3897 Rep 4,162 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	Isn't the S65 oil pump variable pressure? If you run more volume/pressure, won't the oil pump just reduce to compensate?
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05-29-2020, 06:19 AM	#7
Helmsman Major General 4465 Rep 7,109 Posts Drives: 2011 AW E90 M3 ZCP Join Date: Mar 2014 Location: Stockholm, Sweden iTrader: (0)	Always something to worry about. Now when we have increased oil clearance in place, the oil pressure will die on us after 5k rpm. Ah well, back to nanny driving... This is not at all what BE (Autotalen) suggest. Also, whats up with SRD's suggested 60PSI max pressure while BE read 70PSI+?. Quite significant difference, or do I misunderstand something here? Would be really interesting to listen into a discussions between experts here. https://www.m3post.com/forums/showthread.php?t=1337998 Last edited by Helmsman; 05-29-2020 at 06:43 AM..
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05-29-2020, 07:06 AM	#8
rhyary Colonel 1563 Rep 2,869 Posts Drives: 2013 M3 Join Date: May 2015 Location: Albany, NY iTrader: (0)	subscribed
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05-29-2020, 08:41 AM	#9
tdott Brigadier General 3941 Rep 3,986 Posts Drives: M3 Join Date: Nov 2010 Location: South FL / 6ix iTrader: (4)	http://wiki.rcollins.org/core/index...._Flow_Analysis __________________ N/A S65 Headers Before/After Dyno Results
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08-18-2020, 03:53 PM	#11
Scharbag Colonel 2621 Rep 2,138 Posts Drives: 2011 E92 M3 Join Date: Oct 2017 Location: Victoria iTrader: (0) Garage List 2011 BMW E92 M3 [0.00]	Just bumping this in case there is any new information. Cheers, __________________ 2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies...
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