R33 Electric Thermofan Push Or Pull?

[KnightRiderR33]

Hey guys just installed a 16" Ice thermo fan on my r33 gtst. Everything seems to be fine im not overheating or anything.. Just wanted to know if the fan setup is Push or Pull. I think my thermo is set up for pull as ive just followed the angles on the fins that were on my clutch fan.. though it seems to be pulling through alote of heat. I can feel it from the engine but my temp gage is reading fine right in the middle but then again i havent gone for a long drive.. u guys got any idea on how it should operate? push? or pull?

[JonnoHR31]

should pull from the front of car and push towards the back

[blind_elk]

The manufacturers generally recommend the fan is set up as a PUSH fan, which means mounting in front of the radiator. I realise that is difficult because of all the A/C stuff and IC hanging around out there. So when you mount the fan inside the engine bay (behind the radiator), you set it up as a PULL fan.

And of couse the air is hot because the fan is pulling air over a hot radiator.

BTW, how are you switching the fan on when the engine gets a bit hotter?

[KnightRiderR33]

The manufacturers generally recommend the fan is set up as a PUSH fan, which means mounting in front of the radiator. I realise that is difficult because of all the A/C stuff and IC hanging around out there. So when you mount the fan inside the engine bay (behind the radiator), you set it up as a PULL fan.

And of couse the air is hot because the fan is pulling air over a hot radiator.

BTW, how are you switching the fan on when the engine gets a bit hotter?

Well i hooked it up to an ICE thermo fan switch its the same brand of the fan.. last night i took it for a long run and she over heated and cracked the radiator.. i took a look at some threads on other sites and they said the fan i got is rated at 2500 cfm i dont get why i over heated i took it out for about an hours drive from my house in green valley to silverwater via the western mototway and she was fine... on the way back though it started to have issues whith spike and then dropping temp

[blind_elk]

Have you got a pilot light to indicate when the fan is operating? Have you set the fan operation so you know when it turns on / off?

The cfm rating of a thermo fan is irrelevant to keeping the engine cool at highway speeds. If a thermo is installed correctly, the only real time the fan should turn on is in stop / start traffic, or if you just let it idle for extened periods of time. If you have the thermo fan working all the time, then you are basically defeating the reason for having a thermo fan, and that is to take load off the engine (you simply transfer the load from the factory fan to the alternator).

When I had a thermo (Davies Craig) I had problems keeping the engine cool - the fan would turn on at highway speeds on slight upward inclines on moderate temp (25C) days. I figured the problem was getting air to actually go through the radiator, so I put the original factory fan back on. Haven't had a problem since.