Back to BigOil & NO " S" versus "T" !

[whitjo]

There ain't a dimes worth of difference in the operation of either one, so I need some tips on gettin' it all put on and working!

I got a pump off Ebad(with an IPR on it!) and I'm getting parts together to build a dual HPOP setup.
Some I'll buy, some I'll make!

Questions:
2 line output with Xover, or 4 line?
Single or dual IPR set-up?

Again, No pissing contest or playground "my dog's bigger than your dog" stuff.
OK?

[Soaggydogg]

I have another brand with only 2 lines.

I say one pump one IPR and two pumps two IPR's.

Don't go cheap on the lines that high of pressure will make a mess if they break.

[whitjo]

WHOA DOGG!
Thanks, I'm gonna get a local shop that does custom stuff to do me some HP braided SS lines. does the two line output need a crossover hose?

[DarkShadowDiesel]

seems like the guys who run 4 lines like it a lot. that said, mine is almost done and i'm only running 2.

personally i would go one IPR but i would change the location.

[strokin_early_99]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: whitjo</div><div class="ubbcode-body">WHOA DOGG!
Thanks, I'm gonna get a local shop that does custom stuff to do me some HP braided SS lines. does the two line output need a crossover hose? </div></div>

Yes, you need to equalize the pressure so each head sees the same amount of oil. The S and T cross one pump to the other pump, not sure about any others.

[GSXRTURBOQUAD]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DarkShadowDiesel</div><div class="ubbcode-body">personally i would go one IPR but i would change the location. </div></div> [img]/forums/images/%%GRAEMLIN_URL%%/smile.gif[/img] It does the job. [img]/forums/images/%%GRAEMLIN_URL%%/wink.gif[/img]

[pmurray]

Two IPR's are just more to go wrong and it's not nessasary.

4 lines may help, haven't seen any dyno numbers to prove it.

You need to equalize the pressure from each pump in some manor.

There is a difference between brands of pro-built big oil.

[whitjo]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DarkShadowDiesel</div><div class="ubbcode-body">seems like the guys who run 4 lines like it a lot. that said, mine is almost done and i'm only running 2.

personally i would go one IPR but i would change the location. </div></div>

what do you mean when you say "change the location" of the IPR?
it has to be in one(or both for two pumps)of the pumps the way it's located in the stock set-up to operate properly, correct?

[whitjo]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 69W900A</div><div class="ubbcode-body">Two IPR's are just more to go wrong and it's not nessasary.

4 lines may help, haven't seen any dyno numbers to prove it.

You need to equalize the pressure from each pump in some manor.

There is a difference between brands of pro-built big oil. </div></div>

Just from pictures of the two popular "pro-built" brands, they both simply use a balance tube between the pumps to equalize the pressure differential, simple enough.

I assume then using a 4 line output would accomplish essentially the same thing?

I think for simplicity, 2 lines would be less hassle as far as having hardware(high pressure lines) subject to failure.
Forgive me for being redundent on some of these questions, but diesel "mods" are still new territory for me and I want to understand the theory, application, and results of making these improvements.(since most of them are DANG expensive!)

[DZLJIM]

If you're making your own pumps, then make a remote IPR mount and you'll only need one IPR.
Feed the remote IPR mount with an output from each pump such that they become the 'balance tube' between them, too.
I have not seen the 4 line Kit, but I can't see how you could do that with a remote IPR. Pick one or the other I guess. For the 4 lines you'd need to use 2 outputs from each pump to see any advantage. The rear pump has 3 outputs but the front only has 2. Splitting off of one outlet to feed 2 lines won't move any more oil as the port's the restriction.
When I built my first big single gear pump I had 4 lines, but they were fed off a manifold that was then fed by a huge supply from the pump.
Make sense?

[whitjo]

DZLJIM
Makes perfect sense.
Since you mentioned it, I was thinking(pondering)a gear pump set-up as well.
What was your success with that?
I've built several high pressure hydraulic systems with some high volume pumps but usually with large reservoirs and large feed lines to flow the high volume.
If the ports are the restriction, then there's really no need for high flow rates.

[southmike]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Soaggydogg</div><div class="ubbcode-body">Don't go cheap on the lines that high of pressure will make a mess if they break. </div></div>

lots of oil on a hot engine very bad...very Fast.

[strokin_early_99]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DZLJIM</div><div class="ubbcode-body">If you're making your own pumps, then make a remote IPR mount and you'll only need one IPR.
Feed the remote IPR mount with an output from each pump such that they become the 'balance tube' between them, too.
I have not seen the 4 line Kit, but I can't see how you could do that with a remote IPR. Pick one or the other I guess. For the 4 lines you'd need to use 2 outputs from each pump to see any advantage. The rear pump has 3 outputs but the front only has 2. Splitting off of one outlet to feed 2 lines won't move any more oil as the port's the restriction.
When I built my first big single gear pump I had 4 lines, but they were fed off a manifold that was then fed by a huge supply from the pump.
Make sense? </div></div>


Do you need a special plug to take the place of the stock IPR? It's kind of a funny looking device with multi levels fo O rings.

[southmike]

I used jb weld and ductape...









sorry couldn't help myself
(don't do that )

[DarkShadowDiesel]

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: strokin_early_99</div><div class="ubbcode-body">Do you need a special plug to take the place of the stock IPR? It's kind of a funny looking device with multi levels fo O rings. </div></div>

yes - it has to be machined to match the IPR