Turbo cooling, previously Re: [Biturbos4] S4 Biturbo newbie

Charles Wurts cwurts12 at mindspring.com
Sun Dec 26 14:13:48 EST 2004

Thanks Dave.  That is good info.

On Dec 24, 2004, at 11:15 AM, dap128 wrote:

> The 2.7T does have an afterrun fan/coolant pump, but the temperature 
> setting on the stock thermoswitch is far higher than most cars ever 
> encounter.  A few enterprising individuals on Audiworld have 
> discovered a direct swap thermoswitch with a much lower temperature 
> setting.  The switch in question is from a EuroVan, IIRC.
> I've got that switch installed and it works well.
> http://forums.audiworld.com/s4/msgs/1629709.phtml
> -Dave Pramanik
> ----- Original Message ----- From: "Charles Wurts" 
> <cwurts12 at mindspring.com>
> To: "BiturboS4" <biturbos4 at audifans.com>
> Sent: Thursday, December 23, 2004 8:59 PM
> Subject: Re: Turbo cooling, previously Re: [Biturbos4] S4 Biturbo 
> newbie
>>> On the old I5 engines, the cooling fan can come on as well after the 
>>> engine is off if it's hot enough.  Newer engines no longer do that, 
>>> not sure why, could be a safety reason.
>> Todd so far is the only one who is told me that the after run 
>> function is still present on the biturbos;  he told me that the Tstat 
>> is much higher and will rarely come into play.  I would like some 
>> more info about this if there is any knowledge out there.  I asked 
>> him about using a lower temp Tstat rather than a turbo timer as it is 
>> more appealing to me.  In the mean time I am religious about cool 
>> down.
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