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[jimp]

Honest...I don't work for Feuling, own any stock or get any commission, but the Feuling oil pump and Zippers bypass spring are the best single improvement I've made to a Twin Cam.  Last Sunday was 99 degrees and 89 humidity.  Stopped in traffic (a very common occurance down here in the swamp) was reading a constant 25psi at idle with Mobil 1. Didn't make me any cooler, but sure made me more comfortable about not cooking the motor.  Sorry for posting another Feuling commercial....

Increased pressure means nothing to me, you can increase the pressure by restricting the discharge of the pump, whats the GPM compared to the stock pump?

[grc]

As always enjoy opinions of people with experience and experts in field on maintaining engine at peak performance. Will change to Mobil1 ASAP.  I would like to use the K&N oil filter also, [highlight]is the KN-171(Bor C) the one everyone is using or is there a different filter?[/highlight]

otophile,

KN-171-C is the correct filter.  In theory, you could use the -B (black) one, but you wouldn't want to advertise that fact on this chrome-obsessed site.

Jerry

[Fired00d]

......but you wouldn't want to advertise that fact on this chrome-obsessed site.

Jerry

Heh now I resemble that remark.

 [smiley=pumpkin.gif]
Ride Safe,
Fired00d
 [smiley=fireman.gif]

[Fired00d]

Increased pressure means nothing to me, you can increase the pressure by restricting the discharge of the pump, whats the GPM compared to the stock pump?

As a FF I understand your point here (more volume means more cooling effect), however also better pressure will allow you to reach areas that may not be reached with less pressure. Using your analogy about restricting the discharge using the same GPM that stream would flow further w/higher pressure then it would with the lower pressure. So this may mean better/more-cooling effect to the top of the motor? [smiley=nixweiss.gif]

Since you brought it up I would like to know what the different GPM is also, you have aroused my curiosity.

 [smiley=pumpkin.gif]
Ride Safe,
Fired00d
 [smiley=fireman.gif]

[HWYMAN1]

Jerry,
thanks for the info! Don't worry I would not think of upsetting the OCD karma of the website. Plus my therapist would be upset if I did not confess my OCD for a fee (although feeding your chrome obsession here certainly is not cheaper!!!!!!)   thanks again john

[grc]

Increased pressure means nothing to me, you can increase the pressure by restricting the discharge of the pump, whats the GPM compared to the stock pump?

jimp,

I haven't seen either pump rated in gallons per minute, but the Fueling folks claim a 40% increase in volume on the pressure side, and a 60% increase in volume on the scavenge side.  This increased volume is what in fact creates the increased pressure (after the bypass valve is modified, of course), since the restriction of the oil passages remains the same.

Jerry

[Midnight Rider]

OK guys, you're getting into some really complex stuff here, as pressure alone will not help, depending on the size of the pipes/orfrices you are pushing the liquids through.  While it is true, generally, that increased pressure = increased flow, that is true only to a certain point, and increased flow does not necessarily equate to more cooling effect or more effective lubrication, as heat transfer is dependent upon many factors, and tolerances will only allow a certain amount of liquid to occupy a certain sized space, though it will move through that space faster.

Any Engineerrs here? (spelling on purpose)....

It's been a while, and this stuff makes my head hurt!!

[MJZ]

What language are ya'll speaking? [smiley=duhk.gif] Since I don't have any idea of what to do with a wrench, I'm soooo confused; [smiley=rolleyes3.gif] my head is starting to hurt trying to follow this. Where is my "Wrenching For Dummies" book?  Oh he!!, I think it is time for a beer and a doobie! [smiley=smoking.gif] [smiley=drink.gif]

[Midnight Rider]

What language are ya'll speaking? [smiley=duhk.gif] Since I don't have any idea of what to do with a wrench, I'm soooo confused; [smiley=rolleyes3.gif] my head is starting to hurt trying to follow this. Where is my "Wrenching For Dummies" book?  Oh he!!, I think it is time for a beer and a doobie! [smiley=smoking.gif] [smiley=drink.gif]

My head's hurtin' too, MJ...can I join you?    

[justgary]

ok so end result.  I know I need to change the oil.  And following the postings I think I even know what oil to put where.  But what did we decide on the feuling oil pump.  I am getting ready to do a cam change.  Do I need this?  How much is it?  Where do I get it?

[Ceej]

 Oh he!!, I think it is time for a beer and a doobie! [smiley=smoking.gif] [smiley=drink.gif]

my head hurts too.....gotta case of SYN3 in the garage - looks like i need Mobil.....
Hey MJZ - don't Bogart that thing, pass it over here [smiley=huepfenlol2.gif]

[Midnight Rider]

ok so end result.  I know I need to change the oil.  And following the postings I think I even know what oil to put where.  But what did we decide on the feuling oil pump.  I am getting ready to do a cam change.  Do I need this?  How much is it?  Where do I get it?

GaryT...talk to DOOD or DCFIREMAN about both the cams and the oil pump, as they will be able to advise you about those mods, as I think both of them are running the Zippers and the Fueling. [smiley=xyxthumbs.gif]

[Twolanerider]

ok so end result.  I know I need to change the oil.  And following the postings I think I even know what oil to put where.  But what did we decide on the feuling oil pump.  I am getting ready to do a cam change.  Do I need this?  How much is it?  Where do I get it?

G&T, consider this one bit of consideration or advice.

Things you know: You're changing a cam.  Therefore you'll have pump, lifters, etc apart and in your hands anyway.

Things you're wondering:  Should I change the oil pump?

Thing to consider:  Why not, it's off in your hand anyway.  You don't know what kind of shape your tensioners will be in.  You might have already run some chunks through the pump.  There's no real disagreement that the Feuling pump is in some ways "better."  Only questions really seem to be how much and for what uses.  But there is some "better" to be gained there.  All that being so, since it's already off and in your hands anyway; why not?  

If you're doing it, do the Feuling lifters too.  More oil to the top with them, not that expensive, and why not give the new cam new lifters to start against.  Granted, they are rollers so it's not a requirement.  But why not....

[hd-dude]

I'll through my 2 pennies in here...the why not for some might be as simple as $'s. I did the cam change and I did not change the lifters or pump in my own bike, for me the why not was simply $'s. Its an extra $400.00 at the best price around for the pump and lifter combo.

I agree that the increased pressure and oil flow is better for the motor and i can say that I have very similiar results with a $15.00 Baisley oil bypass spring. My hot idle pressure is around 20lbs or so and 45-50 at cruise RPM. Is the Fueling better? maybe, maybe not. I have installed the Fueling pump and lifters in several bikes and I have done the simple Baisley spring in others, customers have been happy with both products and they both work well. For me that's an extra $385.00 that can be spent elswhere on the bike..........

[Twolanerider]

I'll through my 2 pennies in here...the why not for some might be as simple as $'s. I did the cam change and I did not change the lifters or pump in my own bike, for me the why not was simply $'s. Its an extra $400.00 at the best price around for the pump and lifter combo.

I agree that the increased pressure and oil flow is better for the motor and i can say that I have very similiar results with a $15.00 Baisley oil bypass spring. My hot idle pressure is around 20lbs or so and 45-50 at cruise RPM. Is the Fueling better? maybe, maybe not. I have installed the Fueling pump and lifters in several bikes and I have done the simple Baisley spring in others, customers have been happy with both products and they both work well. For me that's an extra $385.00 that can be spent elswhere on the bike..........

Jim, that's the comparison I was hoping to draw.  Why versus why not with the qualifier being the extra expense.  If the expense is do-able there seems little reason not to do it.  If budget concerns are a more significant part of the task there are reasonable reasons to leave it alone.  So why; or why not is always the question.

It's a big-time slippery slope too.  Because without some real limit in your head based on some semblance of reality you can "why not" yourself to a lot of extra bling or bang.