INTERCOOLER- AIR VS WATER?
IMHO water/air intercooling is far and away the preferred application for these coaches. As you can see by the first few pics I initially chose to follow Len's lead from his D-Max build with one, I thought, notable change: I would put my electric fan on top of the cooler 'pushing' air downwards vs sucking road dust (pulling) upwards into the engine house. We always have and will continue do much of our camping in the backcounty on dusty, dirty forest service roads. The guy I bought the fan from had cut away a portion of the radial support arm from the fan. It was still fairly solid but I elected to beef it up some with the addition of the two aluminum braces/struts you can see in the pic. It doesn't 'twist' on start up any more.
Trying to reconcile this air/water setup in the rear corner of the coach - under the genset - set in motion a long & onerous chain of events that I'm quite ashamed to share with anyone; however, I will do so regardless :-o
First pic: this is Ford Taurus electric fan. They are legendary for the flow volumes they achieved and good used ones are widely available and very affordable. They also used them on certain (80's?) Lincoln's & similar ones on Volvo's, too. You'll be plumbing in a 60-amp fuse (or so) to run one of these puppies as they surge real high on start up.
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