Remote oil filter location
Thread Starter
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Cruiser
Joined: Apr 2020
Posts: 125
Likes: 10
From: Connecticut
Remote oil filter location
Ok, no one has really spoke on or about the location of your remote mounted filter. Maybe nobody has asked that specific question.
So here it is : When choosing a location to install a remote oil filter-
1) Does the location matter?
2) Does location in reference to waterline matter.
3) Does orientation other than messy -vs- not messy filter changes matter?
I ask these question with the understanding that my shovel does not make as much oil pressure as my diesel truck, and that unlike most modern engines shovelhead motors are more about the flow than the psi.
I would assume that mounting it away from exhaust areas would help keep things cooler.
I am choosing to use a remote mount filter because the amount of "Glitter" in my oil tank when my rear cyl. seized last year was alarming for the fact it had passed through a filter before going into the tank. I have a stock tank which has the stock drop in style filter. Motor is ehh kinda stock.
Someone sent me the Low Brow Filtromax for christmas. Link provided if you want to check it out. https://www.lowbrowcustoms.com/produ...mount-polished
So here it is : When choosing a location to install a remote oil filter-
1) Does the location matter?
2) Does location in reference to waterline matter.
3) Does orientation other than messy -vs- not messy filter changes matter?
I ask these question with the understanding that my shovel does not make as much oil pressure as my diesel truck, and that unlike most modern engines shovelhead motors are more about the flow than the psi.
I would assume that mounting it away from exhaust areas would help keep things cooler.
I am choosing to use a remote mount filter because the amount of "Glitter" in my oil tank when my rear cyl. seized last year was alarming for the fact it had passed through a filter before going into the tank. I have a stock tank which has the stock drop in style filter. Motor is ehh kinda stock.
Someone sent me the Low Brow Filtromax for christmas. Link provided if you want to check it out. https://www.lowbrowcustoms.com/produ...mount-polished
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
I get your looking to insure the oil is filtered and the unit stays as clean as possible -
before the evo only the FLT was can filtered - everything else was part flow filtration - maybe 25 percent of the oil was being filtered and that only happened at over 150 degrees oil temps -
a pile of reasons come into play and i dont like typing that much - just know this we have seen shovels with excess of 200,000 miles using part flow BUT the oil tanks were removed and flushed out spotless all the lines changed every 5 years and the oil was changed at 2500 to 3000 miles < every
did they get rebuilds yes was the engine destroyed like some no - its all in his you take care of it < its not a diesel and it only uses diesel oil on brake in
before the evo only the FLT was can filtered - everything else was part flow filtration - maybe 25 percent of the oil was being filtered and that only happened at over 150 degrees oil temps -
a pile of reasons come into play and i dont like typing that much - just know this we have seen shovels with excess of 200,000 miles using part flow BUT the oil tanks were removed and flushed out spotless all the lines changed every 5 years and the oil was changed at 2500 to 3000 miles < every
did they get rebuilds yes was the engine destroyed like some no - its all in his you take care of it < its not a diesel and it only uses diesel oil on brake in
Stellar HDF Member
Joined: Apr 2016
Posts: 3,323
Likes: 2,114
From: Masshole
Been looking for a remote filter myself, great time for this subject to come up! I have no flter at all now, horeshoe tank. Looking at their brackets, I'm wondering if their Ironhead bracket would fit right on the front motor mount. I don't think I would be able to fit the big twin backet there as my volatge regulator is also there. Hmmmmm. Great link!
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,586
Likes: 6,435
From: Honah Lee
First of all pressure and flow are related in that given a pump size and a rpm, it can do both when we stay consistent with the parts.
. The key here is resistance. Resistance creates pressure. That in turn reduces flow. Big V8 engines need a lot of pressure with volume from large high rpm pumps to make sure oil gets all the way to the end of the line.
On a roller bearing engine, there is little resistance. So volume is basically control by pump size, W weight number of oil and of course rpm. It doesn't take much pressure to get to the end in a Vtwin. There is slso in most a ball check for idle oil pressure above the pressure required to keep light off.
On a TC, and Interesting fact in hot climates, you don't want to engineer any changes since idle oil pressure does not flow thru cooler injectors till above 18 or so so you don't cook oil at a stop light.
Also the filter is before engine oiling. EVO filters after engine oiling. So on a EVO, the oil going thru the filter id coming from the scavage side of pump. Not sure if this was from Harleys at one time not having a filter.
Old Sporty EVO have a resistance check valve to give the some OP so light does not come on at idle. Quite often, this ball valve is leaking and will make light blink.
Pit your remote in air flow. Why are you adding it? Does your Harley not have a original filter?
Thanks.
FORGIVE SPELLING AND GRAMMAR. WIFE HAS MADE THIRD LUNCH CALL. GOTA GO OR DOG GETS IT.
. The key here is resistance. Resistance creates pressure. That in turn reduces flow. Big V8 engines need a lot of pressure with volume from large high rpm pumps to make sure oil gets all the way to the end of the line.
On a roller bearing engine, there is little resistance. So volume is basically control by pump size, W weight number of oil and of course rpm. It doesn't take much pressure to get to the end in a Vtwin. There is slso in most a ball check for idle oil pressure above the pressure required to keep light off.
On a TC, and Interesting fact in hot climates, you don't want to engineer any changes since idle oil pressure does not flow thru cooler injectors till above 18 or so so you don't cook oil at a stop light.
Also the filter is before engine oiling. EVO filters after engine oiling. So on a EVO, the oil going thru the filter id coming from the scavage side of pump. Not sure if this was from Harleys at one time not having a filter.
Old Sporty EVO have a resistance check valve to give the some OP so light does not come on at idle. Quite often, this ball valve is leaking and will make light blink.
Pit your remote in air flow. Why are you adding it? Does your Harley not have a original filter?
Thanks.
FORGIVE SPELLING AND GRAMMAR. WIFE HAS MADE THIRD LUNCH CALL. GOTA GO OR DOG GETS IT.
Last edited by Jackie Paper; Feb 23, 2021 at 12:30 PM.
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Thread Starter
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Cruiser
Joined: Apr 2020
Posts: 125
Likes: 10
From: Connecticut
First of all pressure and flow are related in that given a pump size and a rpm, it can do both when we stay consistent with the parts.
. The key here is resistance. Resistance creates pressure. That in turn reduces flow. Big V8 engines need a lot of pressure with volume from large high rpm pumps to make sure oil gets all the way to the end of the line.
On a roller bearing engine, there is little resistance. So volume is basically control by pump size, W weight number of oil and of course rpm. It doesn't take much pressure to get to the end in a Vtwin. There is slso in most a ball check for idle oil pressure above the pressure required to keep light off.
On a TC, and Interesting fact in hot climates, you don't want to engineer any changes since idle oil pressure does not flow thru cooler injectors till above 18 or so so you don't cook oil at a stop light.
Also the filter is before engine oiling. EVO filters after engine oiling. So on a EVO, the oil going thru the filter id coming from the scavage side of pump. Not sure if this was from Harleys at one time not having a filter.
Old Sporty EVO have a resistance check valve to give the some OP so light does not come on at idle. Quite often, this ball valve is leaking and will make light blink.
Pit your remote in air flow. Why are you adding it? Does your Harley not have a original filter?
Thanks.
FORGIVE SPELLING AND GRAMMAR. WIFE HAS MADE THIRD LUNCH CALL. GOTA GO OR DOG GETS IT.
. The key here is resistance. Resistance creates pressure. That in turn reduces flow. Big V8 engines need a lot of pressure with volume from large high rpm pumps to make sure oil gets all the way to the end of the line.
On a roller bearing engine, there is little resistance. So volume is basically control by pump size, W weight number of oil and of course rpm. It doesn't take much pressure to get to the end in a Vtwin. There is slso in most a ball check for idle oil pressure above the pressure required to keep light off.
On a TC, and Interesting fact in hot climates, you don't want to engineer any changes since idle oil pressure does not flow thru cooler injectors till above 18 or so so you don't cook oil at a stop light.
Also the filter is before engine oiling. EVO filters after engine oiling. So on a EVO, the oil going thru the filter id coming from the scavage side of pump. Not sure if this was from Harleys at one time not having a filter.
Old Sporty EVO have a resistance check valve to give the some OP so light does not come on at idle. Quite often, this ball valve is leaking and will make light blink.
Pit your remote in air flow. Why are you adding it? Does your Harley not have a original filter?
Thanks.
FORGIVE SPELLING AND GRAMMAR. WIFE HAS MADE THIRD LUNCH CALL. GOTA GO OR DOG GETS IT.
- I am adding it to hopefully filter my oil better than it currently is being filtered.
- Current setup is OEM filter in OEM tank.
- Also I am interested in the extra cooling abilities from the filter sticking out in the air but I don't see that helping that much.
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Thread Starter
|
Cruiser
Joined: Apr 2020
Posts: 125
Likes: 10
From: Connecticut
Been looking for a remote filter myself, great time for this subject to come up! I have no flter at all now, horeshoe tank. Looking at their brackets, I'm wondering if their Ironhead bracket would fit right on the front motor mount. I don't think I would be able to fit the big twin backet there as my volatge regulator is also there. Hmmmmm. Great link!
Yea LOW-BROW is relatively new to the scene for big twins i think. I am always satisfied with their products and prices. They have a few different brackets to choose from. The iron head one I think you would have to add holes to one of your frame sections. But I don't know. I have also returned somethings to them I didn't need or want. That has always been a painless experience so if it wont work just send it back. Good luck and post up some pics of how it works out for you. I will post my pics/progress as it happens.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,586
Likes: 6,435
From: Honah Lee
RIP SAW,
- I am adding it to hopefully filter my oil better than it currently is being filtered.
- Current setup is OEM filter in OEM tank.
- Also I am interested in the extra cooling abilities from the filter sticking out in the air but I don't see that helping that much.
If a roller bearing engine is breading up, I seriously doubt it's going to matter if the oil is filtered coming or going..
Guess it depends on what is failing. If it's the oil pump, then a modern system would be of an advantage I would think.
Thanks for the help here. Been pondering when a a Harley got an external filter.