[DeTomaso] Speaking of EFI--Water Temp Sensor Question
Richard Greenblum
richard at richardgreenblum.com
Tue Jul 28 13:52:49 EDT 2020
Thanks Julian, but I already have the dry manifold setup which I’d like to keep (a FoMoCo Buddy Bar aluminum sqaure-bore version of the factory manifold), so the crossover thing would mean a change. I'm going to contact a Sniper specialist to ask him what the EFI needs. I think he has a Mustang with a 351C in it, so he may be very familiar with the situation.
> On Jul 28, 2020, at 12:01, Julian Kift <julian_kift at hotmail.com> wrote:
>
> What do you want to record or use as temperature for EFI control? The water pump is a suction pump so at that point the temperature is prior to any heat soak of the engine, not a true operating temperature. Ideally for EFI I think you want the exit of the thermostat, which poses a constraint prior to the thermostat opening.
>
> CHI offer the drilled for Clevor crossover option (i.e. when using a dry Cleveland intake manifold) , attached their 3V drawing for port location, but you should also be able to drill through the manifold to tap into the head water passage. That is quite a common crossover to do to reduce air pockets at the rea of the heads.
>
> Julian
>
> From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Richard Greenblum <richard at richardgreenblum.com>
> Sent: Tuesday, July 28, 2020 9:25 AM
> To: Mike Drew <MikeLDrew at aol.com>
> Cc: DeTomaso Mail List <detomaso at server.detomasolist.com>
> Subject: Re: [DeTomaso] Speaking of EFI--Water Temp Sensor Question
>
> 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 --------------
Thanks Julian, but I already have the dry manifold setup which I'd like
to keep (a FoMoCo Buddy Bar aluminum sqaure-bore version of the factory
manifold), so the crossover thing would mean a change. I'm going to
contact a Sniper specialist to ask him what the EFI needs. I think he
has a Mustang with a 351C in it, so he may be very familiar with the
situation.
On Jul 28, 2020, at 12:01, Julian Kift <[1]julian_kift at hotmail.com>
wrote:
What do you want to record or use as temperature for EFI control? The
water pump is a suction pump so at that point the temperature is prior
to any heat soak of the engine, not a true operating temperature.
Ideally for EFI I think you want the exit of the thermostat, which
poses a constraint prior to the thermostat opening.
CHI offer the drilled for Clevor crossover option (i.e. when using a
dry Cleveland intake manifold) , attached their 3V drawing for port
location, but you should also be able to drill through the manifold to
tap into the head water passage. That is quite a common crossover to do
to reduce air pockets at the rea of the heads.
Julian
__________________________________________________________________
From: DeTomaso <[2]detomaso-bounces at server.detomasolist.com> on behalf
of Richard Greenblum <[3]richard at richardgreenblum.com>
Sent: Tuesday, July 28, 2020 9:25 AM
To: Mike Drew <[4]MikeLDrew at aol.com>
Cc: DeTomaso Mail List <[5]detomaso at server.detomasolist.com>
Subject: Re: [DeTomaso] Speaking of EFI--Water Temp Sensor Question
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 <[6]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
<[7]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
>>
>> _______________________________________________
>>
>>
>> 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.
>
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References
1. mailto:julian_kift at hotmail.com
2. mailto:detomaso-bounces at server.detomasolist.com
3. mailto:richard at richardgreenblum.com
4. mailto:MikeLDrew at aol.com
5. mailto:detomaso at server.detomasolist.com
6. mailto:MikeLDrew at aol.com
7. mailto:richard at richardgreenblum.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
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