when is the front 2nd oil cooler activated?
07-13-2009, 12:00 AM
#1
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when is the front 2nd oil cooler activated?
hi guys,
Basic question: i have the Ruf/cargraphic front extra oil cooler from an old group buy here..
Ive never understood what activates it.
As i did not install a separate switch for it, what makes the oil cooler turn on?
Will it automatically turn on when the a/c fan is turned on?
How can i verify that its working properly?
thanks.
Basic question: i have the Ruf/cargraphic front extra oil cooler from an old group buy here..
Ive never understood what activates it.
As i did not install a separate switch for it, what makes the oil cooler turn on?
Will it automatically turn on when the a/c fan is turned on?
How can i verify that its working properly?
thanks.
07-13-2009, 01:42 AM
#2
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Whenever the thermostat opens to feed the primary oil cooler, the 2nd feeds as well. The fan for it operates whenever the A/C is on. You can feel the lines for it become hot when oil flows through it.
07-13-2009, 08:50 AM
#3
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What is also temperature activated is the high speed cooling fan. That kicks on somewhere around 9 o'clock on the temp gauge.
With my second oil cooler and AC on, I don't see temps get as high as 9 o'clock. And I drove it in 104 degree temps last week.
With my second oil cooler and AC on, I don't see temps get as high as 9 o'clock. And I drove it in 104 degree temps last week.
07-13-2009, 10:46 AM
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Yes, since these coolers are in series and with no thermostat between them, if one cooler is warm, the aux cooler should also be.
07-13-2009, 01:26 PM
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try driving it at the track and it will come on!
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07-13-2009, 05:45 PM
#8
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The fan on your primary cooler comes on automatically (if your ballast resistors are working). The fan on the aux cooler is the A/C fan and it only comes on when you turn on your A/C. There is a mod on P-car.com that enables you to manually turn your primary fan on at high speed. Of course, if the thermostat isn't open it doesn't do much.
Greg H.
07-13-2009, 07:12 PM
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we are speaking about the 2nd oil cooler, in my case the ruf/cargraphic.
therefore, based on Greg's comment, should i run my a/c when im on the track to make sure it engages? does it matter what a/c setting im using or the fan speed? If my a/c is not turned on, is it basically useless?
therefore, based on Greg's comment, should i run my a/c when im on the track to make sure it engages? does it matter what a/c setting im using or the fan speed? If my a/c is not turned on, is it basically useless?
07-13-2009, 07:23 PM
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Unless you are driving really slow, I think the ram air going through the cooler is much more than the fan can provide. I wouldn't worry about it on the track. If you are idling at a stand still, then you might turn on your a/c. Have you ever seen your temps get too high (above 9:30 or 10:00)? If so, I'd check that my primary fan was coming on before I did anything.
Greg H.
Greg H.
