Thread: Isuzu intercooler

A top mount intercooler will not work as efficiantly as a front monted cooler. 1st there is little area on top of the motor to fit the intercooler and where is the air going to go to? Straight into a hot motor! 2ndly a bonnet scoop is not very efficient as the hole in the front is usually in a low air pressure area. Look at the reversed scoops HDT put on Toranas and Commoders, The base of the windscreen is a high air pressure area and the reversed scoops got more air to the carby than a front facing scoop! The most common mod Toyota and Nissan owners do to their top mount intercoolers is fit a thermofan that runs the whole time the engine runs!

Originally Posted by Dougal

A lot of japanese vans (incl prados and 200 cruisers) run a top-mount which is fed air by ducts under the bonnet which lead towards the grille. Could be worth a look at.

Originally Posted by landrover dave

A top mount intercooler will not work as efficiantly as a front monted cooler.

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Yep we sort of worked this one out mate

If you read our posts we run AC and high mount winches, which leaves us a top mount as our only choice. I also run vents in the sides of the bonnet to help reduce and positive pressure that is under it.

Justin

pretty sure a top mount will run more efficiantly than no intercooler. All modern deisels seem to be running top mounts these days. I'm looking to put mine on the drivers side of the engine with a 10" thermo fan under it for low speed work. Will keep investimagating it
Could hook the thermo up to a relay for when the EGT's start getting high

Originally Posted by Vern

Could hook the thermo up to a relay for when the EGT's start getting high

A boost switch would be the easiest way. I wonder if a radiator thermo-fan switch would work as a boost temperature switch? A 90C cut-in temp from the turbo could work nicely.

Still thinking this is the way to go for me (top mount I/c). Any chance you have a better pic dranged?