[DeTomaso] Led headlamps...

Charles Engles cengles at cox.net
Fri Sep 11 13:06:41 EDT 2020


Dear Ken,

 

                 I agree with you.  Electricity does strange things, especially when I am involved.  My friend, whose business is electrical in nature, spent about sixteen hours over a weekend at my place with multimeter and the Pantera electrical schematic.   He was stumped. 

 

                  In any event, I was indeed impressed by the initial performance of the LEDs before they turned “darkish”.   I am very interested in finding an LED headlight replacement that will simply plug in and work.  

 

                          Warmest regards, Chuck Engles

 

From: Ken Green [mailto:kenn_green at yahoo.com] 
Sent: Friday, September 11, 2020 11:14 AM
To: Charles Engles; Mike Drew
Cc: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Led headlamps...

 

Might try bypassing the switch etc and just run a temporary wire from the battery to the headlight and see what happens?  Electricity does strange things and a circuit that is part of an LED conversion that might be sensitive to the power source?  

 

https://en.wikipedia.org/wiki/LED_circuit

 

 

I'm wiring an EFI and the "experts" say you absolutely have to run dedicated wires from the battery to the ECU, and taking short cuts is a major cause of issues with EFI installations, even the ground wires should be from the battery to the ECU.  

 

Ken

 

On Friday, September 11, 2020, 8:44:24 AM PDT, Mike Drew via DeTomaso <detomaso at server.detomasolist.com> wrote: 

 

 

Chuck,

All Panteras use the same headlight wiring. I don’t know what your car’s problem was, but I think it was your car’s problem.....

Mike

Sent from my iPad

> On Sep 11, 2020, at 21:12, Charles Engles <cengles at cox.net> wrote:
> 
> Dear Bobby and David,
> 
>            One caveat about the seductive lure of simple plug-in LED bulbs for Panteras:  Not all of the LED bulbs will work in all of the Panteras.
> 
>            David is part of the MidAmerica Pantera Squadron here and his success with the simple installation of the LED bulbs persuaded me to try them on my late 74 Pantera VIN 7191.  The first pre-dawn back road trip they worked great and then.....they worked, but the output was much lower.    Another member of the Squadron who is much more electrically competent that I am, spent hours trying to locate the problem.  No luck.  We put the old halogen bulbs back in and they worked: low beam and high beam.
> 
>              I noted that David's Pantera is VIN 3659, while mine was 7191.  It occurred to me after thirty plus years of Panteras, that there may well be some difference in the wiring harnesses over the production run.
> 
>              We tried an experiment  with an early pre-L with a VIN less than 2000.  The LED bulbs immediately worked as advertised.  These are the same LED bulbs as David used.  Apparently, the LED bulbs that David uses seem to work much better in earlier than later Panteras.
> 
>                My advice given the gremlins in the Italian wiring is to obtain some guarantee from the vendor for a return and refund if they don't work properly.  Good luck and if anybody has had a successful LED installation in a Late '74, then please let me know the specifics.
> 
>                        Warmest regards, Chuck Engles
> 
> 
> 
> -----Original Message-----
> From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf Of David
> Sent: Friday, September 11, 2020 9:16 AM
> To: Bobbykart
> Cc: detomaso at server.detomasolist.com
> Subject: Re: [DeTomaso] Led headlamps...
> 
> I have a set of https://vintageleds.com  <https://vintageleds.com%20> <https://vintageleds.com/> They are virtually a drop in replacements for the stock 7” round.
> Half the amps and WAY more light.
> I love them.
> David Finley
> #3659
> 
> 
> 
> 
> 
> 
>> On Sep 11, 2020, at 9:06 AM, Bobbykart <bobbykart at gmail.com> wrote:
>> 
>> I recently deleted a post on LED headlamps, any input on these? There seems to be a lot of choices out there.
>> Bobby in San Diego
>> 
>> Sent from my iPad
>> _______________________________________________
>> 
>> 
>> Detomaso Email List is not managed by POCA Posted emails must not 
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> 
> 
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> 
> 
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-------------- next part --------------
   Dear Ken,


                    I agree with you.  Electricity does strange things,
   especially when I am involved.  My friend, whose business is electrical
   in nature, spent about sixteen hours over a weekend at my place with
   multimeter and the Pantera electrical schematic.   He was stumped.


                     In any event, I was indeed impressed by the initial
   performance of the LEDs before they turned "darkish".   I am very
   interested in finding an LED headlight replacement that will simply
   plug in and work.


                             Warmest regards, Chuck Engles


   From: Ken Green [mailto:kenn_green at yahoo.com]
   Sent: Friday, September 11, 2020 11:14 AM
   To: Charles Engles; Mike Drew
   Cc: detomaso at server.detomasolist.com
   Subject: Re: [DeTomaso] Led headlamps...


   Might try bypassing the switch etc and just run a temporary wire from
   the battery to the headlight and see what happens?  Electricity does
   strange things and a circuit that is part of an LED conversion that
   might be sensitive to the power source?


   [1]https://en.wikipedia.org/wiki/LED_circuit



   I'm wiring an EFI and the "experts" say you absolutely have to run
   dedicated wires from the battery to the ECU, and taking short cuts is a
   major cause of issues with EFI installations, even the ground wires
   should be from the battery to the ECU.


   Ken


   On Friday, September 11, 2020, 8:44:24 AM PDT, Mike Drew via DeTomaso
   <detomaso at server.detomasolist.com> wrote:



   Chuck,
   All Panteras use the same headlight wiring. I don't know what your
   car's problem was, but I think it was your car's problem.....
   Mike
   Sent from my iPad
   > On Sep 11, 2020, at 21:12, Charles Engles <[2]cengles at cox.net> wrote:
   >
   > Dear Bobby and David,
   >
   >            One caveat about the seductive lure of simple plug-in LED
   bulbs for Panteras:  Not all of the LED bulbs will work in all of the
   Panteras.
   >
   >            David is part of the MidAmerica Pantera Squadron here and
   his success with the simple installation of the LED bulbs persuaded me
   to try them on my late 74 Pantera VIN 7191.  The first pre-dawn back
   road trip they worked great and then.....they worked, but the output
   was much lower.    Another member of the Squadron who is much more
   electrically competent that I am, spent hours trying to locate the
   problem.  No luck.  We put the old halogen bulbs back in and they
   worked: low beam and high beam.
   >
   >              I noted that David's Pantera is VIN 3659, while mine was
   7191.  It occurred to me after thirty plus years of Panteras, that
   there may well be some difference in the wiring harnesses over the
   production run.
   >
   >              We tried an experiment  with an early pre-L with a VIN
   less than 2000.  The LED bulbs immediately worked as advertised.  These
   are the same LED bulbs as David used.  Apparently, the LED bulbs that
   David uses seem to work much better in earlier than later Panteras.
   >
   >                My advice given the gremlins in the Italian wiring is
   to obtain some guarantee from the vendor for a return and refund if
   they don't work properly.  Good luck and if anybody has had a
   successful LED installation in a Late '74, then please let me know the
   specifics.
   >
   >                        Warmest regards, Chuck Engles
   >
   >
   >
   > -----Original Message-----
   > From: DeTomaso [mailto:[3]detomaso-bounces at server.detomasolist.com]
   On Behalf Of David
   > Sent: Friday, September 11, 2020 9:16 AM
   > To: Bobbykart
   > Cc: [4]detomaso at server.detomasolist.com
   > Subject: Re: [DeTomaso] Led headlamps...
   >
   > I have a set of [5]https://vintageleds.com
   <[6]https://vintageleds.com/> They are virtually a drop in replacements
   for the stock 7" round.
   > Half the amps and WAY more light.
   > I love them.
   > David Finley
   > #3659
   >
   >
   >
   >
   >
   >
   >> On Sep 11, 2020, at 9:06 AM, Bobbykart <[7]bobbykart at gmail.com>
   wrote:
   >>
   >> I recently deleted a post on LED headlamps, any input on these?
   There seems to be a lot of choices out there.
   >> Bobby in San Diego
   >>
   >> Sent from my iPad
   >> _______________________________________________
   >>
   >>
   >> Detomaso Email List is not managed by POCA Posted emails must not
   >> exceed 1.5 Megabytes DeTomaso mailing list
   >> [8]DeTomaso at server.detomasolist.com
   >> [9]http://server.detomasolist.com/mailman/listinfo/detomaso
   >>
   >> To manage your subscription (change email address, unsubscribe,
   etc.) use the links above.
   >>
   >> Members who post to this list grant license to the list to forward
   any message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

   >
   >
   > _______________________________________________
   >
   >
   > Detomaso Email List is not managed by POCA
   > Posted emails must not exceed 1.5 Megabytes
   > DeTomaso mailing list
   > [10]DeTomaso at server.detomasolist.com
   > [11]http://server.detomasolist.com/mailman/listinfo/detomaso
   >
   > To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   >
   > Members who post to this list grant license to the list to forward
   any message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.
   _______________________________________________
   Detomaso Email List is not managed by POCA
   Posted emails must not exceed 1.5 Megabytes
   DeTomaso mailing list
   [12]DeTomaso at server.detomasolist.com
   [13]http://server.detomasolist.com/mailman/listinfo/detomaso
   To manage your subscription (change email address, unsubscribe, etc.)
   use the links above.
   Members who post to this list grant license to the list to forward any
   message posted here to all past, current, or future members of the
   list. They also grant the list owner permission to maintain an archive
   or approve the archiving of list messages.

References

   1. https://en.wikipedia.org/wiki/LED_circuit
   2. mailto:cengles at cox.net
   3. mailto:detomaso-bounces at server.detomasolist.com
   4. mailto:detomaso at server.detomasolist.com
   5. https://vintageleds.com%20/
   6. https://vintageleds.com/
   7. mailto:bobbykart at gmail.com
   8. mailto:DeTomaso at server.detomasolist.com
   9. http://server.detomasolist.com/mailman/listinfo/detomaso
  10. mailto:DeTomaso at server.detomasolist.com
  11. http://server.detomasolist.com/mailman/listinfo/detomaso
  12. mailto:DeTomaso at server.detomasolist.com
  13. http://server.detomasolist.com/mailman/listinfo/detomaso


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