[DeTomaso] Third fan / cooling problems at idle.
Asa Jay Laughton
asajay at asajay.com
Tue Jul 22 23:48:10 EDT 2008
Sure, now we're back to the "size" versus "how you use it debate."
Asa Jay
<who manages to boil over when idling, but -knows- there is something
wrong somewhere, just not knowing exactly -what- just yet.>
Asa Jay Laughton, MSgt, USAFR, Retired
& Shelley Marie
Spokane, WA
1973 Pantera L 5533
[ASASCAT]
******************************
http://www.asajay.com
http://www.351c.info
msm at portata.com wrote:
> You're all slackers. Unsubscribe me.
>
> I drove my Pantera 600 miles from Las Vegas, across the desert, and back
> to the Bay Area without any fans.
>
> It's not the size of your fan; it's the motion of the air flow through
> your radiator. You get plenty of air flow at speed as long as you don't
> use your brakes like some slacker, wiener dog.
>
> Even Sandra Bullock could drive a bus through LA without hitting the
> brakes or dropping below 50 MPH. If you can't out drive Sandra in a
> bus, you need to hang it up.
>
>
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
> On Behalf Of Mad Dog Antenucci
> Sent: Tuesday, July 22, 2008 4:13 PM
> To: doug at silicondesigns.com
> Cc: DeTomaso Forum
> Subject: Re: [DeTomaso] Third fan / cooling problems at idle.
>
> Okay I understand the point slacker ;-]>
>
> I am just trying to understand why anyone needs 3 fans when ONE fan
> will do the same job.
>
> Doug Braun <doug at silicondesigns.com> wrote:
> That's the point MD. Stock fans are lucky to provide 500 CFM apiece.
> By
> adding a 3rd 1200 or so CFM fan to the back, it'll total to a little
> more
> flow of your setup which you have proven is adequate.
>
> Doug
>
> -----Original Message-----
> From: Mad Dog Antenucci [mailto:teampantera at yahoo.com]
> Sent: Tuesday, July 22, 2008 11:33 AM
> To: doug at silicondesigns.com; Kjetil Finne; ERPIKE at cs.com;
> detomaso at realbig.com
> Subject: Re: [DeTomaso] Third fan / cooling problems at idle.
>
>
> My single sucker fan moves something like 1800cfm which is what I have
> used on the back side of the Pantera's race cup radiator with no
> problems
> for 2+ years.
>
> Doesn't matter if I am at WOT on the track or an open road race or stuck
> in traffic on a hot summer day. Mike Trusty and Dick Drenske who are
> both
> mechanical engineers can confirm what I have been telling you slackers
> ;-]>
> for 2 years.
>
> Dawg
>
> Doug Braun wrote:
> My third fan suggestion to Chris is mainly for those owners who still
> have
> the stock front mounted pusher fans. IMHO, the stock fans have
> insufficient
> air flow capacity to cool the radiator. A centrally located, 13 or 14"
> puller fan in the rear is a simple and inexpensive way to remedy this.
> Such
> 1200 to 1500 CFM fans are readily available on eBay for $30 to $50. For
> those who have converted to more powerful dual front pusher or dual rear
> puller fans, the third fan is likely unnecessary weight.
>
> Doug Braun
> blue 73L #5505
>
> -----Original Message-----
> From: detomaso-bounces at realbig.com
> [mailto:detomaso-bounces at realbig.com]On Behalf Of Kjetil Finne
> Sent: Monday, July 21, 2008 9:59 AM
> To: ERPIKE at cs.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] Third fan / cooling problems at idle.
>
>
> What I have found is that if you have cooling problems at idle it is
> most likely caused by insufficient coolant circulation, not by not
> having enough air over the radiator.
> The heat generated by the engine should be less at idle than at higher
> speeds. (I guess?)
>
> Kjetil
>
> ERPIKE at cs.com wrote:
>
>> Chris:
>> I noticed you have 3 fans. Did the 3rd fan help with cooling when you
>>
> have
> to sit and ilde alot?
>
>> Ed...
>>
>> Christopher Kimball wrote:
>>
>>
>>
>>> What I did was to tap into the wires at each fan motor (I have
>>>
> three--much to Mad Dawg's chagrin!) using the positive and negative
> leads
> right before they went into the fan motors and ran the thee pairs of
> wire to
> the dash. I drilled three little holes above the headlight switch and
> mounted three different colored LEDs (which I bought at Radio
> Shack--made
> especially for 12 volts) so now I know exactly when each fan is
> operating.
>
>>> The LEDs must be hooked up correctly with the positive side to the
>>>
> positive wire and negative to negative.
>
>>> Chris
>>>
>>> #3846
>>>
>>>
>>>
>>>> From: MikeLDrew at aol.com
>>>> Date: Sun, 20 Jul 2008 00:36:38 -0400
>>>> To: adin at frontier.net; detomaso at realbig.com
>>>> Subject: Re: [DeTomaso] indicator light
>>>>
>>>>
>>>> In a message dated 7/19/08 17 37 44, adin at frontier.net writes:
>>>>
>>>>
>>>>
>>>>
>>>>> I need to have a little light to let me know when the cooling fans
>>>>> come on (ford, but not pantera) . . . it seems one could just take
>>>>>
> 12v
>
>>>>> off the fan to a light. It also seems this is a fire waiting to
>>>>> happen - do I need to take the power off the relay???
>>>>>
>>>>> Help please . . .
>>>>>
>>>>> electronically challenged I remain,
>>>>>
>>>>>
>>>>>
>>>> Dave,
>>>>
>>>> De Tomaso was way ahead of you--there is a fan indicator light
>>>>
> sitting
> right
>
>>>> there at the bottom of your speedometer!
>>>>
>>>> That light is amber in color, and moron Lincoln Mercury customers
>>>>
> interpreted
>
>>>> that as a WARNING light and this drew complaints. So after early
>>>>
> 1972,
> it
>
>>>> was left unconnected.
>>>>
>>>> It is a very simple matter to string a wire from the output side of
>>>>
> your
> #2
>
>>>> fan relay back to this light. Voila! :>)
>>>>
>>>> Actually, if you string it from the output side, where 12V flows to
>>>>
> the
> fan
>
>>>> motor, then the spinning fan might cause the light to glow when it
>>>>
> is
> spinning,
>
>>>> but not powered. Come to think of it, it's probably better to string
>>>>
> the
>
>>>> wire from the input to the fan relay, where the relay gets its "turn
>>>>
> on
> the fan"
>
>>>> signal from the thermoswitch in the radiator.
>>>>
>>>> Mike
>>>>
>
>
>
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> Mad Dawg Antenucci
> Team Pantera Racing
> The 1st & still the only vintage race team in open road racing
> www.teampanteraracing.com
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> Mad Dawg Antenucci
> Team Pantera Racing
> The 1st & still the only vintage race team in open road racing
> www.teampanteraracing.com
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