[Supras] A/C booster fans

[Peter]

Id like to know the answer to your question about the fans being 
thermostatically controlled and how to possibly convert. My stock set up 
doesnt come on with the car off.
It sounds like you are running at borderline temps and when you turn the car 
off your going into boiling range. Either that or your rad cap is not 
functioning like the previous responses indicated.

----- Original Message ----- 
From: "Eric Boeck" <eboeck at cogeco.ca>
To: <supras at supras.com>
Sent: Tuesday, August 01, 2006 8:35 AM
Subject: [Supras] A/C booster fans


> Hey Guys,
>
> Are those two little electric fans thermostatically controlled?  And do 
> they
> run if the engine is hot but turned off?  I ask b/c with this heat wave
> going thru here, yesterday when I used the A/C (retro'd to 134a), then
> turned off the car and came back 10 min later, the rad was boiling.
> Literally boiling and just a-bubblin vapour out the overflow!!!!  Rad <
> 10kkm, new cap, engine temp was normal.  All I can think is that heat 
> built
> up between the condensor and rad, and caused it to boil the fluid.
>
> Noooo, it's not a BHG.  Checked that a little while back (sniffer).  And
> there is NO way you'd get this much bubbling with a BHG.  I mean a roiling
> boil!!!
>
> Anyway, anyone retrofit a temp sensor to keep the fans on if the temp 
> behind
> / between the rad was over a certain amount?  Thinking I might need to do
> that.  Set it for say, 80 deg C, and use a relay to keep those fans on 
> until
> it drops below that.
>
> LMK
>
> Eric
> 91T
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