K&P Engineering High Performance Stainless Steel Micronic Oil Filter

[fmorelli]

I get the common sense part ... which is probably why I've not spent $100 on one lol ... just kidding. Seriously though it's not as common sense as one might think.

Let me give an example: let's say you have a half-inch water hose attached to your house that dumps into a pool with a drain. The drain has a 10" grate on it. You design a new grate that flows 7x more than the existing grate. Will water leave the pool faster than it enters from the half-inch hose?

Filippo

 

[The Convert]

I get the common sense part ... which is probably why I've not spent $100 on one lol ... just kidding. Seriously though it's not as common sense as one might think.

Let me give an example: let's say you have a half-inch water hose attached to your house that dumps into a pool with a drain. The drain has a 10" grate on it. You design a new grate that flows 7x more than the existing grate. Will water leave the pool faster than it enters from the half-inch hose?

Filippo

Lol. depends on some specifics. COULD water flow faster through the grate? Yes. WILL it while using the hose to try to fill the pool? Can't, can only flow as fast or slower than the hose that feeds it.

 

[fmorelli]

Lol. depends on some specifics.

Exactly. Trick question - it looks complete. Common sense would yield an opinion, unless you realize that missing information yields different answers.

I have no idea what the flow characteristics of the oil system are. I would imagine BMW designed the oil filter, size-wise and maintenance interval-wise, to not cause oil flow reduction (there's common sense about to bite me) ... but I don't know.

So 7x in a lab - common sense tells me that means nothing in my specific situation.

Filippo

 

[Rob09msport]

Your right and 7x is brand new look at oiled air filters they plug up if you don't clean long enough. The oem ones flow much more consistently

 

[Jeffman]

I would presume that a large part of the analysis depends on the oil pump and how pressure and / or flow rate is regulated. I’ll have to look into how the N54 oil pump works and whether there is any pressure / flow rate regulation (as with our electronic water pumps, for example), or whether it’s completely belt-driven and hence varies simply with rpm.

 

[fmorelli]

@Jeffman while you are looking, take a few minutes and also look at the N55 - I believe they changed the oiling system design, and you might find the contrast worth noting.

Filippo

 

[Jeffman]

Hmm - interesting.

 

[AUbeast86]

@Jeffman do you have any results on this filter to share? I'd like to run this filter with a little heavier oil, say 10w60 (all the newer M cars are running Shell 10w60) in hopes of reducing the oil pressure to prevent blow-by.

 

[Rob09msport]

@Jeffman do you have any results on this filter to share? I'd like to run this filter with a little heavier oil, say 10w60 (all the newer M cars are running Shell 10w60) in hopes of reducing the oil pressure to prevent blow-by.

That would increase oil pressure I would think by going thicker

 

[AUbeast86]

That would increase oil pressure I would think by going thicker

Correct, which is why I'm interested in using this filter along with that weight oil.

 

[RSL]

I haven't read this thread, but if the question is if the oil pressure is controlled, the answer appears to be yes. There are oil pressure targets, PID loop, etc. 10w-60 seems awfully thick. Not worried about inadequate flow, especially if they've modified oiling clearances/channels/jets to go with that heavier oil?

IF this is correct, oil pressure setpoint table I defined in my rom (INA0S). X is oil temp (F), Z is target in psi.

 

[Jake@MHD]

I haven't read this thread, but if the question is if the oil pressure is controlled, the answer appears to be yes. There are oil pressure targets, PID loop, etc. 10w-60 seems awfully thick. Not worried about inadequate flow, especially if they've modified oiling clearances/channels/jets to go with that heavier oil?

IF this is correct, oil pressure setpoint table I defined in my rom (INA0S). X is oil temp (F), Z is target in psi.

View attachment 17085

Oil pressure is not PID controlled on N54. Those tables are there in the DME, but there is no used output from this.

 

[Rob09msport]

Correct, which is why I'm interested in using this filter along with that weight oil.

Got it lol sorry

 

[Rob09msport]

N54 only reads if pressure drops below 7psi if im correct and has no pressure sensor. This does bring question if n55 sensor could be used and the msd81 has logic for it

 

[AUbeast86]

I haven't read this thread, but if the question is if the oil pressure is controlled, the answer appears to be yes. There are oil pressure targets, PID loop, etc. 10w-60 seems awfully thick. Not worried about inadequate flow, especially if they've modified oiling clearances/channels/jets to go with that heavier oil?

IF this is correct, oil pressure setpoint table I defined in my rom (INA0S). X is oil temp (F), Z is target in psi.

View attachment 17085

Yes, this would be a point of discussion as well.

 

[Jake@MHD]

N54 only reads if pressure drops below 7psi if im correct and has no pressure sensor. This does bring question if n55 sensor could be used and the msd81 has logic for it

There are no "free" PWM outputs for it, even though the logic is technically there.

 

[RSL]

Oil pressure is not PID controlled on N54. Those tables are there in the DME, but there is no used output from this.

Thanks, more dead space for you to use

 

[Jeffman]

@Jeffman do you have any results on this filter to share? I'd like to run this filter with a little heavier oil, say 10w60 (all the newer M cars are running Shell 10w60) in hopes of reducing the oil pressure to prevent blow-by.

Sorry not to reply sooner - this didn’t light up my alerts. I’ve been running the stainless filter with no apparent problems since July / 1,000 miles. I’d imagine it will work fine with 10w60. I like the idea of using a higher viscosity oil to reduce blow-by.