SPINPOSI

Tired of searching....

Whats the Max pressure into a VE pump?

What goes wrong?

What the best reulator for this application?

G1625S

1-15psi

2-seal fails and the VE pumps diesel into the crankcase

3-Dave, where are you?

wannadiesel

18 psi seems to work OK too. When you get over 20 psi you are playing with a rattlesnake.

The front pump seal blows off, then what Greg said happens.

I like bypass regulators. They can be as simple as an adjustable check valve in a new return line. Excess pressure is just dumped to the tank.

SPINPOSI

Alright...I'll shoot for 18psi max....

-Jason

Ace

I came up with what I think is a good way to provide more fuel without worrying about excess VE inlet pressure. Check out the post I just made titled "Fuel System Upgrade Pics."

bgilbert

A good red loctite job on the front seal or a retainer fabbed up will take care of big pressure. KTA fabbed a retainer and runs upwards of 60psi inlet pressure with no issues, only big HP. I've run up to 30psi so far with only red loctite and I've either been lucky or something.

Here is the regulator I use, AEI-13204: http://store.summitracing.com/partde...5&autoview=sku. Aeromotive A1000 electric pump.

Ace is right, it's more about volume than pressure.

SPINPOSI

Would this one work?

http://store.summitracing.com/partde...5&autoview=sku

The low pressure spring is 3-20 psi

Or is 20psi pushing my luck.......

wannadiesel

That would work, but you really don't need to spend that much money. All you need is an adjustable check valve in the bypass line.

SPINPOSI

Dont mean to be a pest ....but ...could someone shoot me a part number of a check valve that your using or is known to work on this setup?

I seem to be check valve info impaired....

-Thanks a Million
-Jason

mhuppertz

I would like more info on what KTA did... please???

wannadiesel

Allegedly this one works.

http://www.swagelok.com/search/produ...part=B-4CPA4-3

I got the valve I'm running from GDP, I don't know where he got it.

BearKiller

Where are you guys returning the fuel from those return style regulators?? back into the existing return line, or adding a dedicated return line??

Thanks.

wannadiesel

I have a new return line that tees into the filler neck vent.

Fergavs

I'd also like info on knowing how to help the VE take high volume and 60psi.

Ace

The best way to get more volume throught the fuel system is to incease the size of the fuel lines from the tank and reduce any restrictions like pressure drop though the filter. I'm not sure why you would want to go that high on the pressure. I think that would be a bad idea. The injection pump is only going to flow as much fuel as the injectors need, providing it has enough supply. That supply somes from flow/volume at a given pressure. The VE is designed for that fuel to appear at the inlet around 10-15psi. I doubt ncreasing the inlet pressure much beyond that will change how it delivers fuel to the injectors, except possibly blowing a seal.