Offshoreonly.com - Super Chiller Performance

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I'm running a seperate transom p/u for just the intercooler that is force feed to a strainer then into the intercooler, has worked well on my Whippled Smallblock, making 595 HP @ 6psi of boost, I originally had the intercooler off the sea water pump and it was not supplying enough flow/pressure to both the engine and intercooler, because it's force fed theres no flow at idle and as speed and boost goes up on the engine so does the flow on the cooler, works very well IMO.

Quote:

Originally Posted by abones (Post 3781151)

Yes that is a nice set up, perfect, I too run a max of 15lbs of water pressure, I agree with the water at Idle, good point, sound like a real set up. Top speed?

The boat ( 31' Scarab Viper ) ran 76 mph with carbed hp500's ... swapped power to current ... 93 - 95 mph depending on water conditions . Boat needs a light chop to free up the old school hull.

Quote:

Originally Posted by abones (Post 3781088)

Been there before, if set up correctly the minimal drag is so slight the power gain produced by the chiller you truely wont notice, but they require a large amount of cold water(before the motor) to work correctly. don't cut the supply to the motor, been there done that, and learned from it. I guess the HP range makes a big difference, 700 HP you can get away with it. But everyone has decide for themselves, just my opinion.....

I have a innercooler feed line teed in on both inlet and outlet sides of the pump. On the outlet side I run a relief type valve that opens right when I hit the throttle and continues to feed at low rpm/speed. On the inlet side, I run a check valve that opens up when the hose pressurizes. Plumbed in this fashion the motor is never neglected of cooling capacity (in high load/rpm situations).