Sooo, . . . . . Has anybody tried replacing the . . .

[RCCUMMINS89]

Well.... I keep putting off putting lockers/limited slip in the front and rear.... so it isn't all that cool yet. But it is on it's way of earning it's keep once it has a winch and lockers.


Ya, I only tapped it down maybe.... MAYBE a .5mm I'll mess with it more once I have the adjustable doo dad on it.

[BC847]

Just for giggles:

My fuel overflow restriction thread sure went to sthi didn't it?

[RCCUMMINS89]

Yes sir..... but to put that back on track.

The guy at the inj. pump shop kept hinting around that if someone were to do what we were talking about one would have to address the overflow restriction in order to gain full performance "such as they do on the p pump".

So I think you are onto something there.

[BC847]

Ya, I only tapped it down maybe.... MAYBE a .5mm I'll mess with it more once I have the adjustable doo dad on it.

Another sporty little tool you can make would be like a modified socket, that would fit over the top of the regulator, turn it a little to engage those two wings, and have a long, fine-threaded shaft with a knob . . . .. so as to be able to manually, and with fair precision, run in the regulator as the engine runs.

You'll have to remove the regulator to back-off your adjustment if needed.

I don't know how many times the regulator adjustment plug can be moved before it'll start to leak.

- Better have some replacement O-rings for the regulator body too.

[RCCUMMINS89]

Ya... that'll be pretty slick... allot better than the whack it with a sledge hammer way.

[BC847]

allot better than the whack it with a sledge hammer way.

I've been removing my regulator and, with a small metal dowel held against the regulator adjustment plug, squeezed it in a bench vice, . . . while measuring the vice-jaw movement with a dial-caliper.

OH! What kind of wrench can be made/fashioned to break free the regulator for removal? The initial removal was a PITA! Subsequent removals have been trying at best. Carries on like removing the stupid FSS.

[revemup15]

Ya, I only tapped it down maybe.... MAYBE a .5mm I'll mess with it more once I have the adjustable doo dad on it.

Another sporty little tool you can make would be like a modified socket, that would fit over the top of the regulator, turn it a little to engage those two wings, and have a long, fine-threaded shaft with a knob . . . .. so as to be able to manually, and with fair precision, run in the regulator as the engine runs.

Umm i need a pic david

[BC847]

Umm i need a pic david

I'll need to draw a picture and post it here . . . . tomorrow. I got's ta go to bed.

[turboram]

Here this would kill 2 birds with one stone..... I propose a case regulator that is moved to the over flow valve hole and the old case pressure location be plugged this would ease adjust ability and remove the constant bleed BUT would also allow way more pump cooling because the fuel that was just recirculating and heating up would be sent in a return to the tank and cool, fresh and denser fuel will be available in the pump.....
team this up with an adjustable timing spring and spacer and I believe this would be a great performance mod

[revemup15]

Here this would kill 2 birds with one stone..... I propose a case regulator that is moved to the over flow valve hole and the old case pressure location be plugged this would ease adjust ability and remove the constant bleed BUT would also allow way more pump cooling because the fuel that was just recirculating and heating up would be sent in a return to the tank and cool, fresh and denser fuel will be available in the pump.....
team this up with an adjustable timing spring and spacer and I believe this would be a great performance mod

Ummm interesting....

[BC847]

Here this would kill 2 birds with one stone..... I propose a case regulator that is moved to the over flow valve hole and the old case pressure location be plugged this would ease adjust ability and remove the constant bleed BUT would also allow way more pump cooling because the fuel that was just recirculating and heating up would be sent in a return to the tank and cool, fresh and denser fuel will be available in the pump.....
team this up with an adjustable timing spring and spacer and I believe this would be a great performance mod

Ummm interesting....

Indeed.

[revemup15]

Hey david... how that green loctite working? How did u apply it?

[RCCUMMINS89]

So if I'm following correctly, do away with the press. regulator and essentially make a press regulator at the return to the pump.

Much better idea.... I like that one.


Thought.... I'm gonna say that one could do the proposed above and regulate the case pressure by boost reference and finally have the timing the way it should be, by throttle and load on the motor instead of merely rpm.

[oldestof11]

Here this would kill 2 birds with one stone..... I propose a case regulator that is moved to the over flow valve hole and the old case pressure location be plugged this would ease adjust ability and remove the constant bleed BUT would also allow way more pump cooling because the fuel that was just recirculating and heating up would be sent in a return to the tank and cool, fresh and denser fuel will be available in the pump.....
team this up with an adjustable timing spring and spacer and I believe this would be a great performance mod

I have said this all the way back in 2010.

Another thought is completely doing away with the return orifice and putting an adjustable flow control of some sort on it to keep the pressure constant and adjustable for any application.

You really don't need high flow when you are driving around, occasional romp on the go pedal, towing. But drag racing, dyno's, sled pulls all require high RPM's and the 14mm H&R for whatever reason, seizes when meeting with high RPM's...

viewtopic.php?f=4&t=9210

[turboram]

[/b]

Pe pump overflow is regulated at one pressure.. so I dont see that working. More fuel is bypassed in the case pressure regulator than the overflow it starts opening at 50 psi the ksb counter acts this but up untill a set pressure in the ksb then opens, that pressure is unknown to me but I will investigate. I think that ksb pressure relief could be raised then no fuel could be bypassed at any rpm. Then the overflow orifice could be a on a wot switch to close it then all fuel that the vane pump delivers could be used. The other way would be to plug the case relief and overflow orifice and use a boost reference regulator set at 3 to 1 like a fuel injected car would use

I also said this in the second post of this thread Read the last sentence
sometimes it just needs worded deferently.....
Side note I am working on a deal locally to buy a pump stand