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Thermo fans on intercoolers


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So what do you reckon? Thermo fan on a intercooler.

I've just got the stock cooler on my GTST33 and I know they have problems with heat soak when on boost for extended periods. As far as I can see a thermo fan could completly eliminate this problem. As well as helping the convection cooling of the core and therefore further reducing the air charge temperature.

Also, if you have got a aftermarket FMIC in front of the radiator (or a GTR), a thermo fan could help prevent overheating problems by forcing more air through the cooler onto the airconditioning radiator and engine ratiator.

Just a 12inch davies craig (or similar) would be sweet.

Next prob would be how to switch it, it would be perfect to have it on when on boost and a few second delay after you come off boost, so maybe a thermo switch in the air flow on the hot side of he cooler with some sort of delay for the switch off.

Prolly not much of an advantage on a aftermarket cooler, on cars I have driven with decent coolers, the outlet side (cold side) of the coolers are supprisingly cool even after a flogging. But like I said may still be worth it for the overall heat rejection of the engine, or on the small stock cooler to reduce heat soak.

Any ideas?

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I've played with the idea..

Problem is with my 100mm bar & plate there really isn't much room for a 12" thermo as towards the bottom of the fmic the gap between the condensor & the fmic is narrow. :)

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i also played with the idea but went for the FMIC in the end

i actually tried to mount one in front of my trannie cooler but it wouldn't fit :D

i used a second-hand thermo fan from a mate's TX% turbo so try to source a cheaper fan first

i was going to simply wire it to a switch on the dash so i could just turn it on after/during a spirited drive

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Interestingly, Nissan actually implemented this idea on the R31 GTS-R.

I would assume it was to force air through the cooler onto the radiator as the GTS-R has a large front mount covering the radiator.

It is an approx. 10 inch fan mounted on the front drivers side of the cooler.

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Interestingly, Nissan actually implemented this idea on the R31 GTS-R.

I would assume it was to force air through the cooler onto the radiator as the GTS-R has a large front mount covering the radiator.

It is an approx. 10 inch fan mounted on the front drivers side of the cooler.

Pics pics pics. :P

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If you sit in traffic for extended periods on a regular basis i think it could be a good idea, but otherwise i'd take waterspray but as effective as it is you still need airflow, so ideally you'd have BOTH on a FMIC :P

In summary, i'd go with a simple FMIC, or if you want to remain stock looking setup a waterspray (remember my traffic exception).

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