[DeTomaso] Relays, Fans, Ammeter, second thoughts and project expansion

Thomas Tornblom thomas at hax.se
Wed Oct 17 07:57:33 EDT 2012


2012-10-17 13:51, Tomas Gunnarsson skrev:
> It's a lot easier to add that next to the instrument, right?

If you are comfortable laying on the floor, reaching up under the dash, 
then yes.

That works much better on a two pod dash I think. You can't remove the 
instrument with the steering column in place on a late dash.

Thomas

> Tomas
>
> <-----Ursprungligt Meddelande----->
> From: Thomas Tornblom [thomas at hax.se]
> Sent: 17/10/2012 1:49:16 PM
> To: CharlesMcCall
> Cc: 'Mikael','Tomas Gunnarsson',DeTomaso at realbig.com
> Subject: Re: [DeTomaso] Relays, Fans, Ammeter, second thoughts and
> project expansion
>
> Install a diode in series with the idot lamp wire at the alternator,
> ring facing the alternator. :)
>
> Thomas
>
>
> 2012-10-17 07:18, CharlesMcCall skrev:
>  > Brake lights used to work until I changed to LEDs. Now it doesn't.
>  >
>  > The situation probably always existed on my car, but I didn't notice it
>  > until changing brake light bulbs, as I always shut the car off with
> my foot
>  > on the brake
>  >
>  > Charles McCall
>  > Raising Pantera Awareness Across Europe
>  > 1985 DeTomaso Pantera #9375
>  > http://www.poca.com/index.php/gallery/?g2_itemId=2323
>  >
>  > -----Original Message-----
>  > From: thomas [mailto:thomas at hax.se]
>  > Sent: miércoles, 17 de octubre de 2012 0:01
>  > To: Charles McCall
>  > Cc: Mikael; Tomas Gunnarsson; DeTomaso at realbig.com
>  > Subject: Re: [DeTomaso] Relays, Fans, Ammeter, second thoughts and
> project
>  > expansion
>  >
>  > Pushing the brake pedal will probably have the same effect.
>  >
>  > With MSD and similar ignitions, it may be the current flowing backwards
>  > through the alternator idiot lamp that keeps it running.
>  >
>  > I had a similar ignition on an old Volvo in the 70:s, and it used so
> little
>  > power that the current through the idiot lamp kept it going.
>  >
>  > Inserting a diode in the lamp circuit will fix that problem.
>  >
>  > Thomas
>  >
>  > 16 okt 2012 kl. 22:59 skrev Charles McCall<charlesmccall at gmail.com>:
>  >
>  >> Your engine will stop just fine if you touch the power window button.
>  >>
>  >> That's what I have to do to turn off my motor... It does that even
>  >> without the fans on, I think, so I don't think that is the cause. I
>  >> have a solution so I don't lose sleep.
>  >>
>  >> On 10/16/12, Mikael<mikael_hass at mail.tele.dk> wrote:
>  >>> I guess it does, after looking at the wiring diagramme. But with a
>  > shunted
>  >>> amp gauge, no big problem. Not as big as an engine that won't stop.
>  >>>
>  >>> Mikael
>  >>>
>  >>>
>  >>>
>  >>> Fra: Tomas Gunnarsson [mailto:guson at home.se]
>  >>> Sendt: 16. oktober 2012 21:29
>  >>> Til: mikael_hass at mail.tele.dk
>  >>> Cc: DeTomaso at realbig.com
>  >>> Emne: Re: [DeTomaso] Relays, Fans, Ammeter,second thoughts and project
>  >>> expansion
>  >>>
>  >>>
>  >>>
>  >>> Actually, connecting it that way ensures that all the energy
> consumed by
>  >>> the
>  >>> fans has to pass the ammeter.
>  >>>
>  >>>
>  >>>
>  >>> Tomas
>  >>>
>  >>> <-----Ursprungligt Meddelande----->
>  >>> From: Mikael [mikael_hass at mail.tele.dk]
>  >>>
>  >>> Sent: 16/10/2012 7:16:41 PM
>  >>>
>  >>> To: 'Dave'; MikeLDrew at aol.com; guido_detomaso at prodigy.net;
>  >>> DeTomaso at realbig.com
>  >>>
>  >>> Subject: Re: [DeTomaso] Relays, Fans, Ammeter,second thoughts and
> project
>  >>> expansion
>  >>>
>  >>>
>  >>> Pantera Electronics make great things, I have their white and yellow in
>  > one
>  >>> parking/signal lamp. But there is another way to get the fans away from
>  > the
>  >>> fuse block. I've taken power straight from the battery to the
> relay. That
>  >>> has four advantages, one disadvantage:
>  >>> Advantages:
>  >>> -Simple, as in you won't get stranded anywhere because of this
>  >>> -Cheap, no purchase necessary
>  >>> -Stopped my car from running on when key is turned off. I'm not
> educated
>  >>> enough to fully understand why, but I was told so, and it works
>  >>> -No extra juice/heat past the amp gauge
>  >>> Disadvantage:
>  >>> When the fans turn on, your amp gauge goes to the right instead of the
>  > left
>  >>> (This can be an advantage also, because it's a sure way to see when the
>  >>> thermostat turns on a fan, I discovered it is turned on way too
> often on
>  > my
>  >>> car, will get a hotter thermostat for the fan)
>  >>>
>  >>> Mikael
>  >>>
>  >>> -----Oprindelig meddelelse-----
>  >>> Fra: Dave [mailto:dave at damardirect.com]
>  >>> Sendt: 15. oktober 2012 19:38
>  >>> Til: MikeLDrew at aol.com; guido_detomaso at prodigy.net;
> DeTomaso at realbig.com
>  >>> Emne: Re: [DeTomaso] Relays, Fans, Ammeter, second thoughts and project
>  >>> expansion
>  >>>
>  >>> Pantera Electronics has an amazing fan controller, power is removed
> from
>  >>> the
>  >>> fuse block.
>  >>> Also, look at the replacement (plug n play) fuse block.
>  >>> http://www.pantera-electronics.com/
>  >>>
>  >>> IndyDave
>  >>>
>  >>>
>  >>>
>  >>> -----Original Message-----
>  >>> From: MikeLDrew at aol.com [mailto:MikeLDrew at aol.com]
>  >>> Sent: Sunday, October 14, 2012 10:59 PM
>  >>> To: guido_detomaso at prodigy.net; DeTomaso at realbig.com
>  >>> Subject: Re: [DeTomaso] Relays, Fans, Ammeter, second thoughts and
>  > project
>  >>> expansion
>  >>>
>  >>>
>  >>> In a message dated 10/14/12 15 08 25, guido_detomaso at prodigy.net
> writes:
>  >>>
>  >>>
>  >>>>
>  >>>> Starting to question the wisdom of adding another wire to the ammeter
>  >>>> to feed the fans, now that it's installed of course. Why not tap off
>  >>>> the pink wires at the fuse box, which are on the same circuit and
>  >>>> likely a shorter path to the alternator? I think that was the
>  >>>> approach in "Volts of Confidence" too.
>  >>>>
>  >>>
>  >>>>>> The VofC mod involves adding a second fusebox to drastically shorten
>  >>>>>> and
>  >>> improve the current path for the fans. The aux fuseblock is powered
> by a
>  >>> large-gauge wire hooked to the back of the ammeter; power wires then go
>  >>> from
>  >>> that fusebox directly to the fan relays, which are still switched
>  > normally.
>  >>>
>  >>> (The fans are grounded locally with diodes as well). The problem with
>  >>> that scheme is that the fans are powered all the time, and will run on
>  >>> after
>  >>>
>  >>> the ignition is switched off. Rick Moseley deals with that by
> adding more
>  >>> relays, so the power from the aux fusebox to the fan relays passes
>  > through
>  >>> ignition-switched relays.
>  >>>
>  >>> Mike
>  >>>
>  >>>
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> --
> Real life: Thomas Törnblom Email: thomas at hax.se
> Snail mail: Banvallsvägen 14 Phone: +46 18 32 31 18
> S - 754 40 Uppsala, Sweden Mobile: +46 76 209 8320
> !DSPAM:507e9bbe17307163845084!


-- 
Real life:   Thomas Törnblom             Email:	   thomas at hax.se
Snail mail:  Banvallsvägen 14            Phone:    +46 18 32 31 18
              S - 754 40 Uppsala, Sweden  Mobile:   +46 76 209 8320




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