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Hey guys,

Just realised that i do not have a thermo fan however i do have the plugs for it. I have a r33 Gts4 which i have recently dropped in a stagea motor and am just concerned about the heat of the engine. Does this model not come with a factory thermo fan or has someone most likely removed it for some reason.

Thanks.

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https://www.sau.com.au/forums/topic/313986-thermo-fan-missing/
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as long as you have the clutch fan that is all that matters. the thermo fan on the front of the engine was an over temp fan, designed to come on when the engine temp got too hot. most cars that are missing them have been in front end crashed where the fan was damaged and not replaced (well that is my theory as it is why my car was missing it when i got it).

The front thermo fan also helps with A/C in traffic and those really hot summer days.

I recommend getting one just as "insurance" against overheating (I noticed you live in Adelaide and temps there get pretty hot).

Not sure about R33s - but reading the genuine R34 brochure - the RB20DE NEO engines did not have termo fans - quite odd - but then again Japan doesn't get into 30s and 40s.

All RB25DE and RB25DET - Had thermo fans.

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