No fan is needed when engine is cold or if driving over 40 mph, unless the
a/c unit is on. If you could, use a dual thermostat which turns the fan on
low at around 180degrees and on high at around 200. You should also use a
high pressure switch on a high side a/c line to turn the fan on high if the
pressure gets above 225 psi on the high pressure line. Then you will get a
fan only when needed and only as fast as needed and probably not at all when
on the highway.
----- Original Message -----
From: "Rick Barnes" <barnesrv@attbi.com>
To: <dakota-truck@dakota-truck.net>
Sent: Tuesday, April 22, 2003 6:04 PM
Subject: DML: RE: Re: RE: Electric & Viscous Fans
>
> You have the dual fan set up already. My 5.2 only used the single v-fan.
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bill Knight
> Sent: Tuesday, April 22, 2003 6:30 PM
> To: dakota-truck-moderator@bent.twistedbits.net
> Subject: DML: Re: RE: Electric & Viscous Fans
>
>
> On my 2000 Durango the electric comes on for max A/C, A/C, Bi-level and
the
> defrost setting. This is to help prevent the the engine from getting warm
> to fast and allowing the viscious to kick in. With the two speed Viper
fan
> an idea, not sure how good it is, would be to hook the low speed in to the
> current electric fan harness and the high speed on a thermostat. Again
not
> sure how well this would work since the viscious fan does pull some air
even
> before it kicks in. This at least is how I'm thinkinf of trying it if I
> ever get my hands on a Viper fan.
>
> ""Rick Barnes"" <barnesrv@attbi.com> wrote in message
> news:002c01c308ca$a574d820$0200a8c0@sys15...
> >
> > I don't think its just a back up, it is likely your main fan and the
> > electric only runs when you're a/c is on. Of course you can replace it
> with
> > an electric, (I just got my viper fan yesterday), but you will need to
> hook
> > up a thermostat for the new fan. I get about 2 more mpg and lots of
extra
> > torque by replacing my fan with an electric, but my 5.2 only has one
fan.
> > If you want a great fan, I will have a Black Magic for sale in a few
days.
> >
> > Rascal
> >
> > -----Original Message-----
> > From: owner-dakota-truck@bent.twistedbits.net
> > [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of CHRIS
HOGAN
> > Sent: Tuesday, April 22, 2003 8:13 AM
> > To: dakota-truck@dakota-truck.net
> > Subject: DML: Electric & Viscous Fans
> >
> >
> > ...so as many of you already know, and I just discovered, newer (and
> > maybe older...I only have a newer one) Dakotas
> > have both an electric and a viscous drive radiator fans. I was
> > considering replacing the viscous fan with an electric one, but since I
> > already have one, can I just pull off the viscous one?
> >
> > Well, of course I CAN, but is it a good idea? Is the viscous drive fan
> > just a backup? Would it improve performance at all to remove the
> > viscous fan? I wouldn't think so if it's just a backup...probably just
> > freewheeling all the time.
> >
> > Thanks,
> > Chris
> >
> >
> >
>
>
>
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:12 EST