VE Tech

[Begle1]

Do you know how much the vane pump flows and how much flow can be increased with porting? Roughly, even?

I have no idea, I wouldn't imagine we're looking at too much flow though. That return orifice is purty little.

[sdubfid]

Thought I would add something I found on nwdiesels.com courtesy of mark smith.

"Hone out your spring retainers. (they are just behind your delivery valves)


They are about 1 1/4 mm.... your lines to your injectors are about 1 3/4mm. This helps with mid range and upper RPM power. There is very little to be gained with different delivery valves themselves.... the non intercooled pumps had slightly bigger DV's.


You can duel feed the little VE... just have to get imaginative.


Pull off the return line and put a regulator on it. Use 3/8" line (or larger) and a good quality high flowing regulator. This will let you retain case pressure, yet you can run enough volume to always have cool fuel coming in.

Take your pump apart. Grind the housing where the stops are to make the dynamic timing swing larger (stock is about 4 degrees.... SHOULD be able to swing 7-8 easily... 9-10 if ya gots some balls)

New cam plate with a 12mm head will stay reliable (enterprise engine has them on the shelf)

You can run a piston lift pump @ 20ish psi by using the one from a case equipment motor. If you like I can look up the number. This will rid yourself of needing a regulator/bypass system.

Make your feed line from the tank 1/2" and return 3/8" Vulcan can hook ya up.


Run the injector overflow line into the return line. You dont need any more hot fuel re circulating into the injector pump than what you HAVE to.
"

Anybody have any more info on honing out the spring retainers? How about running the bigger non-intercooled fuel lines?

[fasttalker83]

ive been reading alot about pressures and things on this and why not run a fuel boss belt driven lift pump it will hold 15-17psi at idle and runs 24-30 at WOT it cost around 570.00 but thats what guys are putting into aeromotive elec....... by doing this you will never worry about pressure loss cuz it goes off of engine RPM's if I remember correctly glacier diesel makes this there are others out there but run around 1200.00

[Dieselpolluter93]

Ok yes we can go with belt driven pump and not worry to much about pressure loss but the the weak point there is still the shaft seal. I have seen guys put a retainer to keep it in but you will eventually blow by that rubber.

Yes you can dual feed but that is for straight drag apps. Without the continuous flow in and out the fuel will heat to much and cause excess wear on the pump.

These pumps with the stock internal pump will flow enough for 250 cc strokes and keeping pump cool and lubed. There are applications out there that used a 12mm head that ran 250cc strokes. Unlike ours wich MOST are max of 170cc. From the info that i found there were 3 or 4 different head sizes they used for our application.

What i am trying to do is make the power without over engineering and being able to keep reliability and longevity.

Porting will increase flow into the housing and maintain the pressure inside the case while keeping enough fuel change out for lube and cooling.

I picked up another pump off ebay for a $100. So soon as that gets here gonna start.

[Begle1]

Ok yes we can go with belt driven pump and not worry to much about pressure loss but the the weak point there is still the shaft seal. I have seen guys put a retainer to keep it in but you will eventually blow by that rubber.

Yes you can dual feed but that is for straight drag apps. Without the continuous flow in and out the fuel will heat to much and cause excess wear on the pump.

The shaft seal only sees the inlet pressure, right? Not the case pressure created by the vane pump? Couldn't you block off the vane pump's outlet port entirely, and feed the case through with a fitting from an external pump?

I've never taken apart the front section of a pump.

[Dieselpolluter93]

Yes the input shaft seal only sees pressure from the lift pump. That is why some of the other guys were putting a retainer on them and cranking up the pressure to push more inot the small chanber to get more fuel through but still created alot of wear on the shaft seal.

That is why flow needs to be incresed while mainting the same pressure.
Thus you can pretty much keep the same configuration on the engine without adding alot of other stuff.

[cummins king]

Dieselpolluter93 do you go by any other name on any other forums?

[Dieselpolluter93]

No i shure don't. This is the only one i am on. Being deployed as much as was never had time to.

[Dieselpolluter93]

Just like you i am looking for 700 hp but doing it with a VE and keeping it alive.

Just now have the time to start working on it. Been researching ve tech for the last year and finally want to put it to use.

[cummins king]

Just like you i am looking for 700 hp but doing it with a VE and keeping it alive.

Just now have the time to start working on it. Been researching ve tech for the last year and finally want to put it to use.

Who said a 700hp ve truck wasn't reliable?

[stillsmokin]

I have heard that our DV are already full cut/maxed out. So I researched 2nd Gen DV and looked at the difference between full cuts over stock. Yep, we have pretty much the full cuts. So I was looking at them and BINGO! popped into my head. Instead of cutting the DV's, bore out the place where they are and add bigger DV's (keeping stock springs) thus allowing more fuel to pass through with less wear-and-tear to the pump. Anyone want to try it?

Wow, been a while since I wasn't working in the shop. There is 1 set of larger DV's in existance (I have em). They were removed from another pump and the holders were reground to fit a VE.

I have a bunch of one off, funky redesign parts that are going to run on the pump this year. The test hook will be in late June if I can get all of the powertrain mods finished. I will make parts available to the general public if I determine they are working correctly after some test runs.

Hint some of these parts are the ideas running around in your mind in this thread, some are light years beyond what anyone has tried before.......

To the future

[Dieselpolluter93]

I never said the truck was not reliable.

What i said was keeping the pump alive making 700 horse. To my knowledge i think the max HP with a VE is 648 but the pump seized after the run but that was a year or so ago.

[cummins king]

I never said the truck was not reliable.

What i said was keeping the pump alive making 700 horse. To my knowledge i think the max HP with a VE is 648 but the pump seized after the run but that was a year or so ago.

And who's truck was that?

[Dieselpolluter93]

Sorry it was 680 hp that Jeremy torgensen put down. His truck was also set up with water meth injection.

[Dieselpolluter93]

Well got the new pump.

It looks like !%@& inside. I was half full of dirt and sludge.

Got it cleaned up and and started the repairing and machineing.

The pump was off of a forklift so i am hopeing it has the 250 cc head will check out the part numbers the first of the week.