Vehicle & Technical > Discovery

water cooled intercoolers

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Arightpest:
I have fitted a fan but I only run it when off roading because the effect of forward motion is normally enough to help keep things cold. But the fan makes up for the lack of forward motion when running slow. I have also had a play with the turbo but not to much I fitted an electric fan plus a k&n and had a little play with the fuelling plus an mr2 intercooler that is capable of running up to 300 horse power I know this because the mr2 it came off was running at that power output but he fitted a charge cooler because a larger intercooler wouldn’t fit at the rear of the car so the charge cooler was the way to go.

All these changes have made it far more flexible to drive I can now drive at 40 mph on the flat in 5th and pull cleanly away plus when towing there is far more grunt.

Arightpest:
The Pajero's have a fan on the intercooler as standard..... Yes they do and that’s were mine came from the only difference is that I have to switch mine on and it sits in front of my rad  and there’s is thermostatically controlled because the inter cooler sits directly above the engine and needs all the help it can get. Any body doing a mod on them moves it infront of the rad to get that nice cold air.

thermidorthelobster:

--- Quote from: "fish" ---I thought about rigging up one some of these Peltier thermo electric cooler modules in the pipe out of the intercooler, a 70°C temp drop should have an effect!
--- End quote ---

2 problems with that:

1) These things aren't that powerful - the temp drop sounds good but 148W of cooling isn't going to make much difference.

2) Conservation of energy - you're going to need to put more energy into the thing from the alternator than you're going to get in benefit from the cooling!  So in other words it won't work.

The gas-related ideas will work because the cooling power is inherent within the gas as it's contained.  If you had to run a compressor to compress the gas, then sprayed it on the intercooler, again you'd have to put more energy in from the engine to compress the gas than you'd get in benefit from the temperature drop.

rollazuki:
I cant measure the temp gain, but my Isuzu TDI motor runs noticeably cooler when the intercooler fan is switched on. It immediately drops 2-3 degrees on the water temp gauge when I kick the fan in.

waveydavey:
One thing to be careful of is not overcooling, you don't want to end up getting consensation in your charge air.

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