im looking into upgrading to the 14mm pump head but I ve been hearing mixed things about them like they dont last long or dont work right out of the box and im not finding to many places who carry them any info on these would be great thanks and if I do upgrade is there anything else that I need to upgrade as well?

 

The only 14 mm heads that are running that I know of were part of a custom batch of a couple dozen; I don't know if any are for sale currently.

A few companies sell them, or say they do, but I don't think anybody's had success (or even failure) with them yet.

If you upgrade, you're looking at big fuel supply to keep it happy. And you'll be moving enough fuel to support big twins, big injectors, big lines, et cetera.

 

well im putting a coumpound set up togehter that consists of hx40 top and a h3tb for the big one and I got stage 4 dynomite diesel injectors and upgrading to a electric lift pump the goal is 800+hp with out nitrous

 

I wouldn't expect more than 600's. Would DDP's be good for more than 500 even?

For 600 you're looking at full AFC articulation, pump case pressure on the verge of blowing apart, as much input pressure as you can seal, probably a few more things that the people who figured it out aren't sharing...

 

You're gonna need a lot more than DDP4s. You're gonna need more than just "an electric lift pump"... something comparable to the 11104 aeromotive pump and a boost referenced bypass regulator. You'll probably want at least 1/2 line from the pickup in the tank to the injection pump which involves a lot of custom work. You'll need a good way to hold a high pressure seal in the front of the pump. You're going to need a good understanding of how the pump works and plenty of time to figure out all the bugs.(plenty $$$$ to) You're gonna need a lot of head work good, head studs, and a good gasket to get close to those numbers. Thats just getting started......

 

What they said... 800 is impossible from a VE on fuel only right now.... Hell 450 is a hard goal to reach with our VE's

 

IF you want 800hp it would be best to got to the inline pump, I can see it would be more reliable compared to the ve. What does it take to convert from a ve to a ppump anyways. front cover or the whole front gear case?

 

Case, injection lines, gear, oiling lines, lift pump, injectors, cover, other stuff.

 

Yeah... pretty much a whole p-pumped motor

 

Just hasn't been done yet. It hasn't been too many years ago that 300 was impossible. I woudn't count on daily driving it, but your not going to daily drive an 800 horse p7100 with good road manners either. The ve actually has a lot better gov control.