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[bisounours]

I look for mounting the Baisley LMR-02 oil spring.

Is it possible to read a report on this upgrade on our 110 ci ?

Is it really an improvement ?

Thanks

Jacques

[Midnight Rider]

I look for mounting the Baisley LMR-02 oil spring.

Is it possible to read a report on this upgrade on our 110 ci ?

Is it really an improvement ?

Thanks

Jacques

Jacques...I don't think the new 110 needs this due to the increased oil pressure in stock configuration.  This was a pre 96"/110" thing some people did when they installed new cams. 

[Eqcons]

Jacques...I don't think the new 110 needs this due to the increased oil pressure in stock configuration.  This was a pre 96"/110" thing some people did when they installed new cams. 

My first 110 motor had increased OP, this replacement one doesn't - just sits on the 32, so the Baisley spring is going on mine!

Jim

[Rooster]

One thing I did notice on mine was the oil gauge jumped right up after install of the spring and at idle it did not drop all the way down like it did when stock.

[Hoist!]

What's the oil pressure if you don't have a gage? The OP is supposed to be better on the '07's. But if the Baisley spring helps increase pressure and your camchest's apart anyway, go for it. Does that spring even work on the '07? I used a Feuling OP and Feuling Camplate w/Feuling spring, So what's my oil pressure? I have no clue!

Hoist!

[Eqcons]

One thing I did notice on mine was the oil gauge jumped right up after install of the spring and at idle it did not drop all the way down like it did when stock.

That's what I'm hoping for!

[grc]

What's the oil pressure if you don't have a gage? The OP is supposed to be better on the '07's. But if the Baisley spring helps increase pressure and your camchest's apart anyway, go for it. Does that spring even work on the '07? I used a Feuling OP and Feuling Camplate w/Feuling spring, So what's my oil pressure? I have no clue!

Hoist!

Howie,

If you really want to know, screw a gauge into the hole for the oil pressure sending unit.  And between you, me, and the fence post, I have no idea why so many folks worry about this anyway.  A ball or roller bearing engine doesn't require excessive oil pressure.

Jerry

[Fired00d]

Howie,

If you really want to know, screw a gauge into the hole for the oil pressure sending unit.  And between you, me, and the fence post, I have no idea why so many folks worry about this anyway.  A ball or roller bearing engine doesn't require excessive oil pressure.

Jerry

Jerry,
Wouldn't more oil pressure ensure the top of the motor is getting better lubrication/cooling? I thought I remember reading that at low oil pressures the top of the motor wasn't getting much lubrication/cooling. With an oil cooled V-Twin I thought that would be important.

 
Ride Safe,
Fired00d
 

[Hoist!]

Howie,

If you really want to know, screw a gauge into the hole for the oil pressure sending unit.  And between you, me, and the fence post, I have no idea why so many folks worry about this anyway.  A ball or roller bearing engine doesn't require excessive oil pressure.

Jerry

Jerry, that was kinda tongue-in-cheek! I'm not worried about my OP until the light comes on now!

Hoist!

[Midnight Rider]

Everybody please remember that pressure does not necessarily mean increased flow.  Pressure will, however, cause fluids to go places they are not intended to be, if they have the opportunity.  Path of least resistance.

With a Feuling pump and spring, pressures at idle are in the 20-30psi range and at cruise probably come close to pegging the needle on the OP gauge.

Whether that's really needed can be debated.

[Eqcons]

Everybody please remember that pressure does not necessarily mean increased flow.  Pressure will, however, cause fluids to go places they are not intended to be, if they have the opportunity.  Path of least resistance.

With a Feuling pump and spring, pressures at idle are in the 20-30psi range and at cruise probably come close to pegging the needle on the OP gauge.

Whether that's really needed can be debated.

I'd go along with that; I just want better pressure like I had on my first 110, not seriously high pressure. One thing I'd like is more on the piston cooling jets, to help keep that rear inferno cool.

Jim

[Fired00d]

Everybody please remember that pressure does not necessarily mean increased flow.  Pressure will, however, cause fluids to go places they are not intended to be, if they have the opportunity.  Path of least resistance.

With a Feuling pump and spring, pressures at idle are in the 20-30psi range and at cruise probably come close to pegging the needle on the OP gauge.

Whether that's really needed can be debated.

Wouldn't this also mean that if all things were as they should be (sealed) then the increased pressure would go where needed? Also Feuling is stating that their pumps increase volume also. With those taken into account wouldn't that mean an air/oil cooled engine would run cooler, and at idle oil would get where it was needed?

 
Ride Safe,
Fired00d
 

[Midnight Rider]

Gary, from my understanding, yes it is possible that more volume (which is what it's all about) would get to the top of the motor, depending on the size of the holes it's being pumped through.  From the things I've read, the Feuling pump has better scavenging ability.  Any given size orfrice is only able to allow so much flow, regardless of the pressure behind it (kind of like being constipated  ), so if the pressure sensor is located on the discharge side of the pump (I'm assuming it is) then it's measuring pressure there which does not necessarily mean there is more flow through the holes the oil flows through.  I don't know enough about the internal oil passages on our motors to know whether it really does any real good or not, so I'm just talking about theoretical stuff here, based on my experience with large closed loop chilled water systems and big HVAC systems...it's all the same principle.

Some of the guys here who know more about the actual internal passages of the engine might add something to this discussion.

I would think this though...that HD would not design an oil pump for the TC motor that was incapable of providing enough flow to the top of the engine to keep it well lubricated, even at idle, which is worst case, and I would think the parameter the pump was designed around.  So the additional pressure from an aftermarket pump won't hurt anything, up to a point.  I'm sure Feuling, being the excellent company they obviously are, would not design a pump which would create too much back pressure, and they would provide a method to bypass the oil passage and return the oil back to the sump.  So IF it's helping at idle, it's probably too much at speed, and bypassing.

Somebody feel free to tell me I'm full of chit...

[grc]

Terry has it right.  It's been over 38 years since my last fluid dynamics class, so the following is overly simplified and not totally accurate.  Pressure is what results when you attempt to force X volume of oil through Y area.  What causes the higher pressure readings with a Fueling pump is the higher volume.  The actual flow through the engine is limited by the restriction of the oil galleries, so when you try to pump a significantly higher volume through those same size holes you create pressure.  If you were to drill out the passages to a larger size, flow would increase but pressure would decrease.

The advantage I see with the Fueling is the fact that there is sufficient volume, and therefore pressure, to keep the piston cooling jets working all the time.  With the stock setup the jets do not operate until oil pressure reaches a specific point, approximately 15 psi.  This was designed this way to make sure the top end wasn't starved for oil at idle and low engine speeds.  However, the excessive pressure at higher speeds is a result of trying to force a higher volume of oil through those stock sized oil passages.  This wastes power and can cause leaks.

IMHO the best setup would be one that boosted idle volume and pressure to the point where the piston cooling jets worked all the time, but allowed the pump to bypass at higher speeds to limit pressure to something closer to the stock values.  In other words, something more sophisticated than just a stronger bypass valve spring.

Jerry

[rednectum]

i am building a fatvo right now. thats a tc88 top end on an evo bottom. it has no skirt oiling jets, do yall think i will have problems at 2-3 psi at idle?