Hesco high pressure fuel regulator
09-04-2005, 11:45 PM
#31
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
I futz with both the MOPAR and the RENIX systems. FYI: the factory
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
09-04-2005, 11:45 PM
#32
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
I futz with both the MOPAR and the RENIX systems. FYI: the factory
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
09-04-2005, 11:45 PM
#33
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
I futz with both the MOPAR and the RENIX systems. FYI: the factory
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
MPI manual for both systems include pulling the vacuum from the
regulator with the engine running as one step in the diagnostic tree.
Pinching the return hose and letting pressure rise to 90 PSI might be
beyond the range of the 'puter, but all I ever see with change from 30
to 40 is a slight hesitation and that is only if I manage to get a
really sudden step. The stumble when removing the vacuum is more
likely the vacuum leak than the pressure, anyway.
On Sun, 4 Sep 2005 21:21:16 UTC L.W.(ßill) ------ III
<----------@***.net> wrote:
> Which system do you have?
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Will Honea wrote:
> >
> > Say what?? If I pull the vac line off my regulator (and rememebr to
> > plug it so there's no vacuum leak) pressure rises to 41-43 PSI. The
> > engine will stumble a little then smooth out. Replace the line and
> > pressure drops to 30-31 PSI. It may actually stumble a bit as I
> > replace the line but the computer seems to figure it out either way
> > just fine. Pinching the return line will get me up to 90+ PSI and the
> > engine gets rough but I've never left the line pinched long enough to
> > see what finally happens - 90+ PSI in a system designed for 40 or less
> > strikes me as unnecessary stress on the sytem. I can't remember ever
> > killing the engine except for the time I intentionally held the bleed
> > button to test flow rate - 0 PSI or so makes for a pretty poor
> > injector spray pattern.
--
Will Honea
09-05-2005, 02:47 AM
#34
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
Thanks, I stand corrected.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
09-05-2005, 02:47 AM
#35
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
Thanks, I stand corrected.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
09-05-2005, 02:47 AM
#36
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
Thanks, I stand corrected.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
09-05-2005, 02:47 AM
#37
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
Thanks, I stand corrected.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Will Honea wrote:
>
> I futz with both the MOPAR and the RENIX systems. FYI: the factory
> MPI manual for both systems include pulling the vacuum from the
> regulator with the engine running as one step in the diagnostic tree.
> Pinching the return hose and letting pressure rise to 90 PSI might be
> beyond the range of the 'puter, but all I ever see with change from 30
> to 40 is a slight hesitation and that is only if I manage to get a
> really sudden step. The stumble when removing the vacuum is more
> likely the vacuum leak than the pressure, anyway.
09-05-2005, 01:53 PM
#38
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
"Michael White" <michael12@mindspring.com> wrote in message
news:HAESe.259$9x2.3@newsread3.news.pas.earthlink. net...
> Bill,
>
> Thanks. Tried that, and it put me on a path. The pressure will go up to
> 50
> PSI if I pinch the line, and that's when I realized that I still had the
> vacuum line attached to the regulator. If I pull off the vacuum line, the
> pressure immediately jumps to 44 PSI (as advertised).
>
> I assume, then, that this is correct (and -please- correct me if I'm
> wrong).
> As engine load (and fuel consumption) increase, the vacuum on the fuel
> pressure regulator decreases, causing more fuel (at the same PSI) to be
> delivered to the fuel injectors.
>
MIke,
I understand it to work as you said. As the engine speed/load increases, the
vac decreases and the regulator closes to deliver more of the fuel to the
injectors. The regulator allows fuel to bypass the injectors at low
speeds/loads, and delivers more fuel in high loads, while the pump itself
does the same work all of the time.
> Thanks.
> --
> Michael White "To protect people from the effects of folly is to
> fill the world with fools." -Herbert Spencer
>
> L.W.(ßill) ------ III wrote:
>
>> Pinch the return line and see if it's your pumps fault.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Michael White wrote:
>>>
>>> Has anyone else bought the Hescoe adjustable fuel pressure regulator for
>>> the
>>> Moport MPFI kit? The 4WD catalog is claiming 44 PSI, but I'm only get
>>> 33
>>> PSI. Anyone else out there with a similar experience?
>>>
>>> Thanks.
>>> --
>>> Michael White
>
>
09-05-2005, 01:53 PM
#39
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
"Michael White" <michael12@mindspring.com> wrote in message
news:HAESe.259$9x2.3@newsread3.news.pas.earthlink. net...
> Bill,
>
> Thanks. Tried that, and it put me on a path. The pressure will go up to
> 50
> PSI if I pinch the line, and that's when I realized that I still had the
> vacuum line attached to the regulator. If I pull off the vacuum line, the
> pressure immediately jumps to 44 PSI (as advertised).
>
> I assume, then, that this is correct (and -please- correct me if I'm
> wrong).
> As engine load (and fuel consumption) increase, the vacuum on the fuel
> pressure regulator decreases, causing more fuel (at the same PSI) to be
> delivered to the fuel injectors.
>
MIke,
I understand it to work as you said. As the engine speed/load increases, the
vac decreases and the regulator closes to deliver more of the fuel to the
injectors. The regulator allows fuel to bypass the injectors at low
speeds/loads, and delivers more fuel in high loads, while the pump itself
does the same work all of the time.
> Thanks.
> --
> Michael White "To protect people from the effects of folly is to
> fill the world with fools." -Herbert Spencer
>
> L.W.(ßill) ------ III wrote:
>
>> Pinch the return line and see if it's your pumps fault.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Michael White wrote:
>>>
>>> Has anyone else bought the Hescoe adjustable fuel pressure regulator for
>>> the
>>> Moport MPFI kit? The 4WD catalog is claiming 44 PSI, but I'm only get
>>> 33
>>> PSI. Anyone else out there with a similar experience?
>>>
>>> Thanks.
>>> --
>>> Michael White
>
>
09-05-2005, 01:53 PM
#40
Guest
Posts: n/a
Re: Hesco high pressure fuel regulator
"Michael White" <michael12@mindspring.com> wrote in message
news:HAESe.259$9x2.3@newsread3.news.pas.earthlink. net...
> Bill,
>
> Thanks. Tried that, and it put me on a path. The pressure will go up to
> 50
> PSI if I pinch the line, and that's when I realized that I still had the
> vacuum line attached to the regulator. If I pull off the vacuum line, the
> pressure immediately jumps to 44 PSI (as advertised).
>
> I assume, then, that this is correct (and -please- correct me if I'm
> wrong).
> As engine load (and fuel consumption) increase, the vacuum on the fuel
> pressure regulator decreases, causing more fuel (at the same PSI) to be
> delivered to the fuel injectors.
>
MIke,
I understand it to work as you said. As the engine speed/load increases, the
vac decreases and the regulator closes to deliver more of the fuel to the
injectors. The regulator allows fuel to bypass the injectors at low
speeds/loads, and delivers more fuel in high loads, while the pump itself
does the same work all of the time.
> Thanks.
> --
> Michael White "To protect people from the effects of folly is to
> fill the world with fools." -Herbert Spencer
>
> L.W.(ßill) ------ III wrote:
>
>> Pinch the return line and see if it's your pumps fault.
>> God Bless America, ßill O|||||||O
>> mailto:-------------------- http://www.----------.com/
>>
>> Michael White wrote:
>>>
>>> Has anyone else bought the Hescoe adjustable fuel pressure regulator for
>>> the
>>> Moport MPFI kit? The 4WD catalog is claiming 44 PSI, but I'm only get
>>> 33
>>> PSI. Anyone else out there with a similar experience?
>>>
>>> Thanks.
>>> --
>>> Michael White
>
>