[Diy_efi] Source for inexpensive fuel/oil pressure sensors?

[Ernest Buckler]

Clair,
Thanks for clarification, am gonna have to check out the numbers, as the 
trans. I have seen (and need) is FWD behind a longitudinally installed 
V-whatever.
Ernie

----- Original Message ----- 
From: "Clair Davis" <clair.davis at charter.net>
To: <diy_efi at diy-efi.org>
Sent: Friday, December 29, 2006 11:48 AM
Subject: Re: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?


>I *BELIEVE* the 545RFE/45RFE is the 5-speed (or 4-speed w/variable
> upshift/downshift gears) RWD trans used behind the current crop of
> 5.7/4.7/3.7L engines.  It's a nice unit, but currently ignored in 
> transplant
> projects due to the electronic control requirements.
>
> I'd be interested in a couple/few of those transducers, as well, if only
> from a "good to have" standpoint.
>
> Clair
>
>
> ----- Original Message ----- 
> From: <don.broadus at exeloncorp.com>
> To: <diy_efi at diy-efi.org>
> Sent: Friday, December 29, 2006 8:39 AM
> Subject: RE: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>
>
> Is that trans the front drive transaxle for the Concord ?  That transaxle 
> is
> the most compact I've seen and wondered could you run it with just  a 
> trans
> module or does it run from the car
> PCM ?
>
>
>
>
>
>
> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
> Behalf Of Brendan Patten
> Sent: Thursday, December 28, 2006 11:35 PM
> To: diy_efi at diy-efi.org
> Subject: RE: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>
>
> I've got source to pressure transducers from Chrysler 45RFE
> transmissions.  They mount external to the trans.  I work for company
> that rebuilds them, and every unit gets a new one... Many are probably
> fine.  The trans runs from 35-200 psi at times..so It should have broad
> range.
>
> Let me know if you are interested. Just pay shipping.
>
> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]
> On Behalf Of Daniel Nicoson
> Sent: Wednesday, December 27, 2006 3:36 PM
> To: diy_efi at diy-efi.org
> Subject: RE: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>
> David,
>
> Great info on the OEM sensors.  I didn't know they were that crappy
> (tech
> term).  I looked at the link you gave.  Nice site, they actually give
> good
> info on the products.
>
> Thanks,
>
> Dan Nicoson
>
> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
> Behalf Of David Allen
> Sent: Wednesday, December 27, 2006 4:19 PM
> To: diy_efi at diy-efi.org
> Subject: Re: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>
>  I 've used a "sender" for a transducer before and it worked. But only
> after I carefully logged the resistance versus pressure curve and
> programmed
> a PIC to interpolate this table into a linear "transducer-like" output.
>  Still cost less than a real transducer but what a PITA just to save a
> few
> $.  The curve on these elcheapo senders is horrible. Repeatability
> sucks,
> and they degrade over time.  The sensing element is a bourdon tube with
> a
> copper "arm" rubbing on nichrome wire.  It wears noticabley in a few
> hundred
> hours of use.
>  The following company supplies the OEM I work for with transducers
> that
> are not too bad expensive and are a very nice piece. We use the 300
> series
> in a pressure/ vac; 100 PSIa, 150PSIa, 1000PSIa and 10,000 PSIa
> versions.
> I've 'copped' a couple used ones and have great success datalogging with
> them while tuning my engine.
>  They even sell online.
> http://www.meas-spec.com/myMeas/default/index.asp
>  Hope this saves you some time!
> David
>
>
>
> ----- Original Message -----
> From: "Daniel Nicoson" <A6intruder at myo-p.com>
> To: <diy_efi at diy-efi.org>
> Sent: Wednesday, December 27, 2006 3:08 PM
> Subject: RE: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>
>
>>I think the oil pressure "sender" on my Mustang costs $6.00 at NAPA.
> It's
>> really just a variable resistor.  I'm not sure what the response curve
> is
>> but it shouldn't be too hard to figure out if you have a pressure
> gauge
>> and
>> a pressure source.  Of course your control circuit would have to
> interpret
>> this variable resistance to be of use.
>>
>> Dan Nicoson
>>
>> -----Original Message-----
>> From: diy_efi-bounces at diy-efi.org
> [mailto:diy_efi-bounces at diy-efi.org]On
>> Behalf Of Geddes, Brian J
>> Sent: Wednesday, December 27, 2006 3:59 PM
>> To: diy_efi at diy-efi.org
>> Subject: [Diy_efi] Source for inexpensive fuel/oil pressure sensors?
>>
>> Hey all -
>>
>> I'm looking for a source for inexpensive pressure transducers.  I've
>> seen lots in the $100-$150 range, but I'm willing to bet that they can
>> be had for significantly cheaper.  :)
>>
>> 1/8 or 1/4 NPT fitting, 5VDC (or 12VDC) power, 0-5 VDC output.  Need
> to
>> tolerate oil/fuel.  100 or 150 PSI would be perfect.
>>
>> Any ideas?
>>
>> Thanks,
>> - Brian Geddes
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>
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