VP-44 fuel psi

[BLT4SIN]

hey guys ive got an 01 dually aka the nightmare truck... i was wondering what fuel pressure should it be set at...? recently added a gauge and saw the pressure to the hotrod vp-44 was 34lbs... a few friends have told me thats to high ... is this true? truck has the GDP fuel boss belt driven lift pump II hotrod vp-44 and BD diesel 75hp sticks! they suck by the way very dirty hot running pig!

 

[1-5-3-6-2-4]

That's too high. 25psi is pushing it. You'll eventually rupture the diaphragm any higher than that.

 

[BLT4SIN]

thats what i thought...... thanks.. could that contribute to high egts

 

[FireMed]

14si is the advised psi.

Sometimes people have reported hard starts with high psi.

 

[BLT4SIN]

truck starts and runs fine

 

[Diehard Ram]

Mines set at 17 psi.

 

[Samaras Diesel]

mine is set at 21-22psi and pulls down to 16 under wot runs.

 

[Headcase98002]

Same here when I had mine, idled at 22psi and dropped to 18psi.

 

[jigabop]

I idle at 20psi and drop to 16psi WOT on my highest power level.

 

[WideHips24V]

I idle at 18psi and drop to 16psi at WOT

 

[ThatGuy01]

My gauge reads 33-34 constant. But I have a bad sender, if you have an electric sender, 33-34 could be its default mode, just a friendly reminder

 

[Cummins626]

Mine idles at 16 and pulls down a little at full power nothing crazy

 

[jesnic]

Mine is set at 22 idle, sucks down to 16 WOT, with a clean filter.

 

[Tnspark82]

Tony set mine at 18psi and it pulls down to 15 at wot