[DeTomaso] Speaking of EFI--Water Temp Sensor Question

Ken Green kenn_green at yahoo.com
Tue Jul 28 14:55:36 EDT 2020 

 Does where you sample the coolant temp make much of the difference? Seems like the temp in the heads or near the flow to the thermostat would be hotter than in the block?
Ken

    On Tuesday, July 28, 2020, 11:18:36 AM PDT, Thomas Törnblom <thomas at hax.se> wrote:  
 
 You could fabricate an H pipe bypass with a 3/8 NPT bung and connect between the heater hoses and barbs. A trickle flow between the input and output should be enough. 

Thomas

> 28 juli 2020 kl. 19:48 skrev Richard Greenblum <richard at richardgreenblum.com>:
> 
> I’m headed that direction, as Thomas (and Bill Bitner privately) suggested.  It may be that the Sniper doesn’t need that much input after the engine warms up, or simply facing reality, the thermostat isn’t going to be closed where I drive the car...
> 
> 
>> On Jul 28, 2020, at 11:57, Mike Drew via DeTomaso <detomaso at server.detomasolist.com> wrote:
>> 
>> Hmm. Drill extremely expensive and non-obvious cylinder head, or drill into a cheap and easily replaced water pipe and have a bung fitted, as the factory did originally?
>> 
>> I know what would do.....
>> 
>> Mike
>> 
>> Sent from my iPad
>> 
>>>> On Jul 28, 2020, at 09:24, Richard Greenblum <richard at richardgreenblum.com> wrote:
>>> 
>>> Mike,
>>> 
>>> That was my original plan, but Dennis Quella told me that location is bad due to turbulence causing inaccurate readings.  If I have to, I can connect the garage there and hope I don’t have an issue with water temp, but that would be pretty risky.  He suggested drilling a head.  CHI’s are billet, so it’s not obvious where the water jacket is.  I’d have to ask them for a template or at least some guidance on where to drill if that’s where I end up...
>>> 
>>> 
>>>> On Jul 28, 2020, at 11:14, Mike Drew <MikeLDrew at aol.com> wrote:
>>>> 
>>>> All,
>>>> 
>>>> Aftermarket water pumps usually have two fittings with pipe plugs. One is the inlet for a heater hose but I don’t know what the other would be used for? Could that be an option?
>>>> 
>>>> Mike
>>>> 
>>>> Sent from my iPad
>>>> 
>>>>>> On Jul 28, 2020, at 08:52, Richard Greenblum <richard at richardgreenblum.com> wrote:
>>>>> 
>>>>> All,
>>>>> 
>>>>> Where did you locate the water temp sensor for the EFI system?  With no water in the intake, 351C’s are short one location.  I’m very reluctant to drill into the front of one of the heads (CHI 4V).  I understand teeing off the current water temp sensor for the gauge will not yield accurate water temps.
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Richard
>>>>> Austin, TX 
>>>>> 
>>>>> _______________________________________________
>>>>> 
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> 
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-------------- next part --------------
   Does where you sample the coolant temp make much of the difference?
   Seems like the temp in the heads or near the flow to the thermostat
   would be hotter than in the block?
   Ken

   On Tuesday, July 28, 2020, 11:18:36 AM PDT, Thomas TAP:rnblom
   <thomas at hax.se> wrote:
   You could fabricate an H pipe bypass with a 3/8 NPT bung and connect
   between the heater hoses and barbs. A trickle flow between the input
   and output should be enough.
   Thomas
   > 28 juli 2020 kl. 19:48 skrev Richard Greenblum
   <[1]richard at richardgreenblum.com>:
   >
   > i>>?Iam headed that direction, as Thomas (and Bill Bitner privately)
   suggested.  It may be that the Sniper doesnat need that much input
   after the engine warms up, or simply facing reality, the thermostat
   isnat going to be closed where I drive the car...
   >
   >
   >> On Jul 28, 2020, at 11:57, Mike Drew via DeTomaso
   <[2]detomaso at server.detomasolist.com> wrote:
   >>
   >> Hmm. Drill extremely expensive and non-obvious cylinder head, or
   drill into a cheap and easily replaced water pipe and have a bung
   fitted, as the factory did originally?
   >>
   >> I know what would do.....
   >>
   >> Mike
   >>
   >> Sent from my iPad
   >>
   >>>> On Jul 28, 2020, at 09:24, Richard Greenblum
   <[3]richard at richardgreenblum.com> wrote:
   >>>
   >>> i>>?Mike,
   >>>
   >>> That was my original plan, but Dennis Quella told me that location
   is bad due to turbulence causing inaccurate readings.  If I have to, I
   can connect the garage there and hope I donat have an issue with water
   temp, but that would be pretty risky.  He suggested drilling a head.
   CHIas are billet, so itas not obvious where the water jacket is.  Iad
   have to ask them for a template or at least some guidance on where to
   drill if thatas where I end up...
   >>>
   >>>
   >>>> On Jul 28, 2020, at 11:14, Mike Drew <[4]MikeLDrew at aol.com> wrote:
   >>>>
   >>>> All,
   >>>>
   >>>> Aftermarket water pumps usually have two fittings with pipe plugs.
   One is the inlet for a heater hose but I donat know what the other
   would be used for? Could that be an option?
   >>>>
   >>>> Mike
   >>>>
   >>>> Sent from my iPad
   >>>>
   >>>>>> On Jul 28, 2020, at 08:52, Richard Greenblum
   <[5]richard at richardgreenblum.com> wrote:
   >>>>>
   >>>>> i>>?All,
   >>>>>
   >>>>> Where did you locate the water temp sensor for the EFI system?
   With no water in the intake, 351Cas are short one location.  Iam very
   reluctant to drill into the front of one of the heads (CHI 4V).  I
   understand teeing off the current water temp sensor for the gauge will
   not yield accurate water temps.
   >>>>>
   >>>>> Thanks,
   >>>>>
   >>>>> Richard
   >>>>> Austin, TX
   >>>>>
   >>>>> _______________________________________________
   >>>>>
   >>>>>
   >>>>> Detomaso Email List is not managed by POCA
   >>>>> Posted emails must not exceed 1.5 Megabytes
   >>>>> DeTomaso mailing list
   >>>>> [6]DeTomaso at server.detomasolist.com
   >>>>> [7]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.
   >>>>
   >>>
   >>> _______________________________________________
   >>>
   >>>
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References

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   4. mailto:MikeLDrew at aol.com
   5. mailto:richard at richardgreenblum.com
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   7. http://server.detomasolist.com/mailman/listinfo/detomaso
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