Solutions to VE high fuel flow rate problems

[Kasper Cummins]

A gear driven fuel pump would work the same as the vane pump, so why not have them work together to build pressure?
If they are both feeding the plunger and the gear drive pump has a one way check valve why wont it work.
Just thinking outloud.

[ahale2772]

^ i think its just that the timing curve is very advantagous for power, if you can keep case pressure from dropping thats probably worth more than trying to hassle with trying to make it feed the plunger too

[Douglas]

hey-Hey!!!
I don't suppose it would be possible to make a 3-cylinder cam plate? You'd need two pumps interleaved by 60 cam degrees to do this( with each one firing every 120 cam degrees ). You'd buy twice as much time to fill the plunger.
cheers
Douglas

[KTA]

I have seen 3cyl VE's on little Ford tractors before so a 3cyl camplate should already exist. Running 2 pumps would be a pretty extreme solution though in my opinion.

[Douglas]

Running 2 pumps would be a pretty extreme solution though in my opinion.

Yes...it certainly would.

However, I would far prefer to squeeze power out ov one with two pumps v. going to a P7100... that said, I'm not likely to do either of them.
cheers,
Douglas

[Jarrus]

This is brilliant!
Been having problems in a high revving application myself so will be looking into doing this,
So all the fuel is supplied through the stop solenoid hole?

[Tacoclaw]

From what I gather, all the fuel that goes to the injectors is supplied through the solenoid hole but you'll still need a low pressure source to feed the vane pump. through it's normal inlet.

[RCCUMMINS89]

Weird.... I've never seen this thread before and I was just thinking a couple weeks ago on how to make a twin ve injection system with feeding 3 cylinders each.

Only problem I see arising after the obvious fabrication issues is the fact of tuning the 2 pumps to be balanced of each other, and not 3 cylinders making 100hp each and the other 3 making 80hp each,

[KTA]

Simplest method is to use two 6cyl pumps and t the injection lines together for each cylinder. It would be the same thing as a Scheid 12cyl pump on a 6cyl motor.

[Mark Nixon]

I have had a couple of the 2.9 pumps in my hand, unfortunately, they are 9mm rotors, at least both of those were.
Interestingly enough, if you take the cam plates from 2 of them, (or go custom made, with more lift) you can turn a 6 cylinder pump into a 3 cylinder, just block off the "extra" ports, which is actually what the heads on them appear to have had done.

Mark.

[cummins12club]

KTA i would really like to contact you I cannot yet use my private message feature idk why but is their someway i could have a pretty lengthy conversation with you? that would be awsome, my name is logan yelton, if you wanted to you could call me at 859-466-7737 any time, id appreciate it,

[Jarrus]

DO you think a power steering pump could be made to pump diesel into the the way you've done it?