Superchiller Plumbing
 

I am curious as to how many discharges a Superchiller should have.
Are two dumps more beneficial than one?
Do two discharges increase the efficiency so that it's noticeable?
Are there any performance gains with two discharges?
It already has a dedicated transom pickup supply.
I am using -10 Aeroquip hose and fittings.
Thanks again for any input.

TTT

Hello, RLW,
The number of dumps is not the question, its the flow. If you have one #10 dump and it is a quality piece that is not restrictive, then that is the only one you need. Some say to use a #8 dump to give the water more time in the intercooler to pick up heat. More dumps don't help, though, unless you have a restriction.
Have a great day!!

Hey Blown, Thanks for getting back to me. I'll stick with the single dump. It is presently plumbed to a starboard side vent. This is so the driver can see it dump while underway.

CP performance sells an inexpensive intercooler by pass kit that will by pass the water into the inter cooler at idle or low speed this helps keeping the fuel from puddeling and improves idle quality

Lee, that is an interesting tip. Iwas under the impression that it was better not to have any water flow thru the intercooler at idle.
I have a transom pickup for the intercooler. It only flows water while underway.
Maybe someone will chime in and clarify which way is better.

I have the cp kit also and I think Lee wanted to say by pass the inner cooler at idle that is the way the kit is set up. works great.

Rich

Hello Guys!
You are definitely better off not having water at idle and low speed. A dedicated pickup is my preference as you have water in proportion to how fast you are going with no parts to fail. The CP is great if you don't have the dedicated pickup or if you are pumping the intercooler water.
Have a great day!!!

On my boat, the Superchillers are plumbed with an adjustable pressure valve installed before the inlet of the intercooler. This valve will open as block pressure increases. The folks at PFM recommend no flow out the coooler dump until engine speed is around 3000 rpm.They worked great for a while then they started to let a little water through, even with the valves adjusted all the way in.( it is a Watts pressure valve 1/2"pipe thread)

Before I had installed the pressure relief valves the boat ran horrible at idle and would foul the rear plugs and the front plugs looked lean, my guess is the intercooler was turning the atomized fuel/air mix back to raw gas and hence the "puddling" situation.

What does the CP Performance kit consist of, and how does it work?

Kurt.