Fuel Pressure Mod?

[BIGG D]

What exactly is this mod? I've searched but no luck! What are some of the advantages of it?

[HeavyAssault]

It's not really worth the time. Get a RR system.

how to shim the regulater - The Diesel Garage Forums

[BIGG D]

So i looked at the link and where does the ferrel go? In between where?

[Texas6.0]

I would love to do this but, don't have or want a FP gauge.

[HeavyAssault]

The BB goes under the spring inside the brass plug....

[BIGG D]

Ok well i put on a guage on the truck and i see 60psi at idle and when i get WOT it goes down to 25 pounds. Its weird the truck doesnt fall off when the pressure drops. Now i ran the truck on diesel and my Bio mix and i have the same results. Any Ideas? DO i have to bleed any air out of the gauge line? Could it be air in the line causing the drop in pressure?

Would the REG Mod fix this?

[BIGG D]

Anybody???

[william_04_x]

if you're running a hot tune, it's simply that the stock fuel system can't keep up with the demand the tuner is calling for...

time for for a FASS150/180....

[BIGG D]

But im running DJ's Looney Tune

[william_04_x]

run it with stock tuning and watch the fuel pressure...if you're still seeing a big drop, then check your fuel filters to see how dirty they are....if they're good, your FP may be getting weak...