Anyone running higher pressure mitusa, rasp or DTT pump setups?

[kawi600]

Im looking to replace my block mounted pump with something else that can give me some more pressure and flow as the RPM and fueling rise. Right now I dont have a whole lot of fueling but once I get some air Id like to see 650-700hp or so. Sounds like the stock pump becomes a bottleneck after 500hp?
Looking at the belt-driven mechanical pumps like the mitusa, but the gearing they come with seems to generate pressures more suited to a VP pump.
And of you folks run one of these belt-driven lift pumps on a 12v at higher pressures? say, 40-50 psi? Or whatever works out to keep the pressure from dipping below the top end of the spec (36psi?) under WOT.
Ive done a lot of searching, just havent found a 12v setup with pressure as a requirement.

 

[Joesixpack]

What pressure do you want? My large Mitusa will put 100 psi on twin cp3's. Just regulate it to what ever setpoint you wish.

 

[kawi600]

If I regulated it up to 50psi and didnt address the flow I could run into pressure dips under heavy throttle. A lot depends on the pulley ratio too. Did you run a different pulley combo? I want to maintain 40psi or so.. even under full throttle.
Sounds like they can sure deal with pressure, but what about flow? Can you -hold- 100psi at WOT on that dual CP3 setup if you wanted to?

 

[Joesixpack]

Used the same pulley's that came in Opie's kit. Can't have pressure without the flow. The short of it YES it flows. Best part of the mechanicals, flow related to engine speed your not bypassing a bunch of fuel when you don't need it.