VGT Compound Build

Black AOD · Jul 23, 2016

ITSSS BACCCKK

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Six_Sloww · Jul 23, 2016

It is, and it's pretty incredible.

Drives just like before, but I can keep turning the fuel up and it just makes more power.

I have to figure out what's going on with the low pressure fuel system I installed before i can turn it up any higher.

Idk if the fuel cooler can't keep up or if the airdog is unhappy for some reason but the filters are very hot to the touch, and there's a pretty direct correlation between fuel temp and lpfp pressure loss.

Oil Field Trash · Jul 23, 2016

Six_Sloww said:
the AIRDOG is unhappy for some reason

Problem found haha!

Six_Sloww · Jul 23, 2016

Idk. I really like this 4g pump, have to investigate further.

Name one pump that nobody has problems with anyway.. They all suck it's not like there's a foolproof option

sootie · Jul 23, 2016

Could you try twin stockers? Caleb is knocking on 1k hp and they keep up for him...

97stoker350 · Jul 23, 2016

A1000? 30k with mine on 66 psi hasn't skipped a beat

Six_Sloww · Jul 23, 2016

I could toss a brand new pump and assume that's the problem, but the pump worked just fine until it started getting hot out and like I said the pressure drop correlates with the temperature of the fuel.

The fuel is hot, it steams while I'm filling the tank.. I'm wondering if the tiny fuel cooler is up to the task.

The ****ty fass I had on my 6.0 wouldn't prime anymore, that's how I knew it was time so I made a fuel lab setup. That worked great for me but I know people who have had problems with fuel labs too.

6.7's are annoying because according to ford the cp4 needs 60-70 psi of fuel, where my cp3 only needs a high volume of fuel with very little pressure.

I like the 165 feeding the stock pump because of redundant filtering and I need the cp4 to last a long happy life.

If the pump simply isn't up to the task I'll feed the cp3 with a separate pump.

Notneb · Jul 23, 2016

How much is a bigger cooler? Anyway to measure amps/voltage on the pump while you're running?

Six_Sloww · Jul 23, 2016

I'm just thinking out loud here.. I need to investigate further I've had the truck a little over 24 hours lol

CATDiezel · Jul 23, 2016

With that kind of volume of fuel there is an incredible amount going back to return. Your heating the fuel in all aspects all over the place. Dual fuelers. Ect ect.

I think your on the right track by adding more cooling capacity. Max temp for diesel #2 for a proper burn characteristic is 140*F.

Ideal optimal temperature for diesel is 60*F.

Six_Sloww · Jul 23, 2016

My guess is it's over 140.

I let it run down to a quarter tank and while I was filling up there was what I assume to be a hot diesel vapor escaping as fuel was entering.

I'm going to start with a better fuel cooler because that's a pretty simple cost effective place to start

WhiteMamba_Scorpion · Jul 23, 2016

Six_Sloww said:
My guess is it's over 140.

I let it run down to a quarter tank and while I was filling up there was what I assume to be a hot diesel vapor escaping as fuel was entering.

I'm going to start with a better fuel cooler because that's a pretty simple cost effective place to start

What fuel cooler are you going to use?

Six_Sloww · Jul 24, 2016

Giggle every time the hood goes up

Six_Sloww · Jul 24, 2016

WhiteMamba_Scorpion said:
What fuel cooler are you going to use?

I'll let you know when I get one picked out.

I found a pretty easy spot off the back of the stock pump (return side) where I'll use a factory quick connect to a 1/2" line and run from there into the bed since it's such close proximity.

It'll look like a trans cooler lots of guys run in the bed with a fan