can I quote you on that ??

Id be careful saying that until you run some ULSD through your VP-44...

 

Nice avatar! It must be a cold day in Hades everyday if Hades is in Canada! What's ULSD...I'm running Red Diesel! Just kiddin'. I did run out the other day at home so I used about a gallon of it, no harm, no foul.

 

Anyone who uses aholly pump and does not have enough pressure, you can stretch the spring or shorten if need be but stretching it or putting in a stiffer spring will up the pressure. I went to napa and bought 4 different springs. I am using a holley blue and my stock lift pump and seeing 24-27 at idle and nothing lower than 18 at WOT.

 

So does anyone have factual data on what pressures the VP44 mins and maxes are? I'm curious to know if the higher pressure won't hurt it as much as the lower pressure will. I know hundreds of folks are running over 20 psi, but anyone have factual data from Bosch on what their pumps allow and don't allow?

 

No but II has told me that the acceptable range is 10-20

 

That is kinda what I thought, but I know folks like Blackdiesel and others runing Holleys are pushing 25+. Just wondered if that would be detremental as well. Oh well. I just give JoeBoo rum everyday and pray mine don't go out! I actually saw 17 PSI today at lunch with my factory lift pump. It is always 15 in the cold morning, well, 45-50F, and once it warms up a little, it goes to 16 almost everytime and stays. I just went and cleared my 'records' on my attitude module at lunch....the min recorded fuel pressure was 2 PSI! WOW! Really nice, Clark. No more...I hope.