Drilling the vane pump?

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Re: Drilling the vane pump?

Postby AHineman » Thu Jan 10, 2013 4:23 pm

Are you taking them out? It's been awhile, but I thought KTA said they run like crap that way. :?
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Re: Drilling the vane pump?

Postby BC847 » Thu Jan 10, 2013 4:50 pm

oldestof11 wrote:Going off of this:
Douchem @ CompD wrote:VP44's don't have delivery valves.

http://competitiondiesel.com/forums/sho ... stcount=36

of which our own KTA later confirmed in a thread on here...

and a part in the VE manual about the DV's being for low RPM emissions.

Stupid BUT I want to see what happens. Also drilling out the holder slightly to accommodate an increase in flow at higher rpms. I remember pinning out the holder and injection lines. I remembered thinking just drilling it out slightly.


Fixed your post for you. :roll:

I could have gone another long while before reading that crap again.
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Re: Drilling the vane pump?

Postby AHineman » Thu Jan 10, 2013 4:54 pm

I like what ya did there BC. 8) :lol:
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Re: Drilling the vane pump?

Postby BC847 » Thu Jan 10, 2013 5:01 pm

FWIW:

My absolutely preposterous suggestion of air binding the injector is apparently enough of an issue in certain situations that Bosch developed DVs to address such as well as other related issues.

-Read "Constant-Pressure Valve"

Image



. . . . "Combustion gas blowback into the nozzle and holder assembly"


I want some of what they're smoking!!
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Re: Drilling the vane pump?

Postby dazedandconfused » Thu Jan 10, 2013 5:03 pm

Took me a minute but I see it now. :lol:
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Re: Drilling the vane pump?

Postby AHineman » Thu Jan 10, 2013 5:04 pm

http://www.1stgen.org/viewtopic.php?f=1&t=8195&p=59589&hilit=+valves#p59589

I know KTA had confirmed what BC thought here recently, but here is another thread with it mentioned a few years ago.
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Re: Drilling the vane pump?

Postby cummins12club » Thu Jan 10, 2013 5:31 pm

So running w no delivery valves is a no no?
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Re: Drilling the vane pump?

Postby AHineman » Thu Jan 10, 2013 5:33 pm

I can't see it being a good thing, but I have never done it so...

I guess we'll see, if that's what oldest does.
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Re: Drilling the vane pump?

Postby RCCUMMINS89 » Thu Jan 10, 2013 11:31 pm

The biggest thing I'm curious about is, if drilling out the holders slightly will increase flow. When I was looking at them I was thinking same thing... but I like the idea of someone else testing it LOL
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