Porsche Fan Conversion on Type 1

[BOBTAIL]

I think what Jake means is that a 911 motor creates more heat therefore requires more cooling, But you knew that anyway
Im still trying to fathom how a 911 motor is 3 times bigger than a 2.4 T4



Thinner oil will certainly help .You could use an aircon compressor pulley clutch to disengage the fan during warm up.
Or just flick the belt off.

I've never seen damage from cold oil, only hot or old overheated oil will give you trouble.

There seems to be a big deal about Porsche fans overcooling but as yet I've not seen anyone have an issue because there engine was too cool.Its about efficiency if its too cool its not as efficient as when its at operating temperature.

Someones time would be better spent working out a variable pulley system which changes the ratio, dependant on temprature and revs, rather than trying to use a fan which is designed to cool a 44 horse motor

[Massive Type IV]

Nope, the engine isn't physiacally large enough to use all the air..

Ever seen a 911 longblock?? One look will let you see just how much air can be blown through its fins, and why the 911 on a TI or TIV just isn't the same...

[Andy]

I appreciate all comments and replies.

I have spent a lot of money on the engine, and perhaps I am just paranoid.

I have always thought that oil under 180 degrees is not efficient and is not fully lubricating. I just want to minimise the wear on the engine on start up. It will eventually rise to 160 - 170 but takes about 20-25 mins of light driving to get there, outside tempature is quite low. In the first 20 mins, I keep revs below 3K.

So, if cold oil is not a problem.... I will stop worrying....