intercooler water pickups
 

on a 42 fountain where would be the best place to install raw water pickups for intercoolers,its 2000 42 with a notched transom and a single center drain plug. I was thinking the adjustable ones or something simalar like on the 700 powered boats,If anybody had some good closeup pics of the back and below would be great. thanks

what about tapping off a sea strainer

I dont know how that could work being before the sea pump ?

Thats actually better. Only when underway will there be flow thru the intercooler. You may need to run an inline check valve in the IC water line to stop the raw water pump from sucking air thru the IC though.

Better off adding thru hull or transom mount pick ups for the motor, then use the drive pick ups just for the Inter coolers with no pump.

Fixx
 

mount them to the forward pad section(along each side of the drain hole or their about)your going to need a pressure relief valve also so you dont rupture the cooler with water pressure.

Hi,

I am working on a setup (I haven't run it yet), for a pair of 1000 hp EFI motors. I have welded on a tee to the discharge of the strainer basket. (if you have multiple ports on yours, you could do this, or just put a tee in the hose). I have a check valve allows flow only out of the tee, so at lower speeds, the pressure from the sea pump will not be dumped. On the inlet to the intercooler, I have another tee with a check valve on the line coming from the from the sea pump. The idea is that a low speeds, the sea pump will maintain flow to the intercooler, but as the intake scoop pressure builds, it will open the check valve on the strainer, and shut the supply from the sea pump, and feed the intercooler as much as it will take.

Obviously there are different variations on this. You could have a separate pickup and strainer for the IC's and tie it in with check valves. Some people do only force-feeding of the IC's, but others claim that can shock the core when flow starts suddenly. Others say that pushing lots of flow through the IC at idle causes condensation and poor idle. I'm trying to get the best of both worlds. I'll post how it works after I run the setup.