CSH needed here too/Rad fans on 165 on/off

[Mike Rolica]

	Or like the VW's which is similar  ever seen one?  What a wack of
hoses!
	What this country needs is a good recirculating thermostat like them
"dumb" Fiat/Audis used with the 1+" bypass hose.....
	THen, we can have some MPG gain with a cold engine, and lessen the
belt loads
	Grumpy

		>If the sensor were in the RAD then think of the other
state.. if the 
		>rad is satisfied but the head is hot and the stat opens
then the fan 
		>will not come on until the hot flows from the head into the
RAD... 
		>where it should have been on based on the hot head. I think
it takes 
		>5 or 6 seconds at most if I had to guess.
		>
		>we have this dilems in building controls constantly.
imagine a 
		>variable speed water pump in the mix.. on a reeal cold day
the demand 
		>for engine cooling is not great, thus the pump is slowed
way down, so 
		>when the engine cracks the stat a bit, it takes a while for
the cool 
		>water to hit the head - and the cool water is 25 degrees
cause its 
		>going thru the radiator sooo slow. 
		>
		>it depends on where the sensor is I guess - before or after
the head.
		>
		>you can apply hardware or even valves etc to maintain the
temperature 
		>- good for situations where consistancy is an issue but for
trips to 
		>the store.. they might call whats there good nuff. the err
is on the 
		>side of better emissions.. but warranty? which is more
valued at 
		>corporate?
		>
		>
		>
			>> From:	Mike Rolica
<mrolica at meridian-mag.com <mailto:mrolica at meridian-mag.com> >
			>> To:	"'gmecm at efi332.eng.ohio-state.edu'" 
		<gmecm at efi332.eng.ohio-state.edu
<mailto:gmecm at efi332.eng.ohio-state.edu> >
			>> Subject:	RE: CSH needed here too/Rad fans on
165 on/off
			>> Date:	Fri, 5 Nov 1999 16:17:54 -0500 
			>> Reply-to:      gmecm at efi332.eng.ohio-state.edu
<mailto:gmecm at efi332.eng.ohio-state.edu> 
		>
			>> HEY EVERYONE GOT MY TRUCK BACK YIPEEEEE.  Custom
rad is excellent looks
			>> beautiful!! Now for the efi stuff.
			>> Just wondering how the ecm controled rad fan
stuff works.  How can it know
			>> when to turn on the fan and when to turn it off?
If the temp sensor is in
			>> the head?  Should it not be in the rad?  Ie, once
the head reaches