Attention: TDR Forum Junkies 
"The 30 gph spec for the VP44 is a low end spec. More volume is better as long as the max psi @ the inlet is around 17 psi. More fuel = more cooling capability. "
According to the tests (several of them!) in the thread pointed to further above, 30 gph was the absolute MAXIMUM they could get thru the VP44 under ANY circumstances or load (at reasonable VP44 inlet pressures) - and considerably LESS at lower demand...
The setup I am GOING to use - still waiting to install guages first so I can take baseline readings - will be to cut the fuel supply line back near the tank, run fuel thru the Purolator filter ID'd above - it's about the size of a beer can - then directly into the Carter 4600 pump, then on thru the stock lines to the stock LP and rest of the system - I'd like to improve upon the fittings at the VP44, but will wait to see what is supplied with the Geno's guages. I'm expecting and assuming that the 6-8 lbs. supposedly supplied by the Carter 4600, added to existing pressure at the VP44 will give me around 18 psi idle/cruise, and hopefully, about 12 psi at WOT with the Comp on a low setting - we'll see!
My setup will be, as nearly as I can tell, pretty much the same as quite a few others are using with good success... I certainly agree, for good engineering, providing a COMPLETE low restriction path COMPLETELY thru the system is desireable - but I've seen that the internal passages in the Carter 4600 ITSELF are considerably LESS than 3/8 - and no telling WHAT the same passages are in the existing stock LP - as well as other points in fuel travel. And until we DO know what ALL the restrictions are, it might be sorta pointless to focus in on enlarging ONE area, when another elsewhere in the system negates our effort to a significant degree.
What I'm doing is at least a start - but probably NOT the end!
According to the tests (several of them!) in the thread pointed to further above, 30 gph was the absolute MAXIMUM they could get thru the VP44 under ANY circumstances or load (at reasonable VP44 inlet pressures) - and considerably LESS at lower demand...
The setup I am GOING to use - still waiting to install guages first so I can take baseline readings - will be to cut the fuel supply line back near the tank, run fuel thru the Purolator filter ID'd above - it's about the size of a beer can - then directly into the Carter 4600 pump, then on thru the stock lines to the stock LP and rest of the system - I'd like to improve upon the fittings at the VP44, but will wait to see what is supplied with the Geno's guages. I'm expecting and assuming that the 6-8 lbs. supposedly supplied by the Carter 4600, added to existing pressure at the VP44 will give me around 18 psi idle/cruise, and hopefully, about 12 psi at WOT with the Comp on a low setting - we'll see!
My setup will be, as nearly as I can tell, pretty much the same as quite a few others are using with good success... I certainly agree, for good engineering, providing a COMPLETE low restriction path COMPLETELY thru the system is desireable - but I've seen that the internal passages in the Carter 4600 ITSELF are considerably LESS than 3/8 - and no telling WHAT the same passages are in the existing stock LP - as well as other points in fuel travel. And until we DO know what ALL the restrictions are, it might be sorta pointless to focus in on enlarging ONE area, when another elsewhere in the system negates our effort to a significant degree.
What I'm doing is at least a start - but probably NOT the end!
