[scout4bta]

I've been thinking of how to mount a air to air CAC in the front of my Scout, because I didn't leave room for it in the initial design, it was going to be a tight fit. At lunch the other day while surfing the news I ended up here:
http://www.internationaltrucks.com/Static Files/MaxxForce Engines/MaxxForce11.pdf
I notice the twin turbo's and then the twin WCCAC! On these two engines, the 11 litre and the 13 litre, there not using any air to air CAC, only water cooled charge air coolers! Intresting? That got my attention and google'd WCCAC and found this:
http://emp-corp.com/media/SAEPapers/2004-01-2614.pdf
It's a SAE paper about WCCAC on a Cummins N14. If I read it correctly they used two WCCAC's, the first WCCAC uses the engine coolent and the second WCCAC uses it's own water supply and pump along with a microprocessor to to controll and maintain the charge air temp.
I've measured over 4" clearance between the hood and the valve covers on my Scout, enough for a WCCAC I think. I was going to use a custom built Air to Air CAC, but now it water cooling all the way.
What do you think?

 

[Machman]

Here's some good readin' for ya:

http://www.4btswaps.com/forum/showthread.php?t=681

 

[nfmisso]

Go with the water. If space up front is an issue, you could plumb it to a radiator in back.

Things to consider:
air flow direction, versus water flow direction, my opinion is that they should be in opposite directions, to that the coolest water is seen by the air just before in enters the engine.

capacity - how much do you need. A dragster running max boost for 15 seconds or less does not need much. A truck hauling horses up I-80 from Sacramento needs a huge amount. Most typical users are somewhere in between. A water temperature guage will help you decide.

Pressurization - does not hurt in the design of the system, even if later you decide it is not needed. Going the other way is a start over.

 

[scout4bta]

Thanks guys. I'm really impressed that this system is not just for generators and race trucks anymore.

 

[LincTex]

Go with the water. If space up front is an issue, you could plumb it to a radiator in back.

Recently helped build a similar set-up......the cooler used is a rear heater unit from an old school bus.
It is kind of heavy, but is compact and has a built in 12 volt fan.
Looks factory, too.

 

[scout4bta]

12v water pump

Found this:
http://www.daviescraig.com.au/main/display.asp?pid=47
Data says it has a minumin 2000 hours of run life. Also can be had with a controller/tempature sensor to turn it on and off automaticly