[Diy_efi] [slightly ot] Differential Pressure Measurement gauge, alternatives ?

[Mike]

Yeah good point Rick,
Motorola do have a couple of good differential transducers, its just the convenience aspect, I'm
not yet looking for another product development route, just something utilitarian but expedient,
though one does wonder why there arent more EFI based electronic tools around for that sort of
thing, maybe we are all getting so used to plug and play and find resistance to doing something
a bit different, who knows, thanks

mike
ps: Not sure what "cup of joe" means, we is from Australia and have our own peculiar dialect since
we are flat out like a lizard drinking while looking out for a galah...




At 09:32 PM 9/6/07, you wrote:
>Why not come up w/ an electronic system, one that summarizes the difference of two sensors, one in the manifold and one in the fuel log. This would then allow smoothing to be applied elecrically. For that matter, you could also use a 'expanded' technique to monitor more critially w/ an electronic system. just my 2 cents worth, but not enough to buy a cup of joe ----- Original Message ---- From: Mike <niche at iinet.net.au> To: diy_efi at diy-efi.org Sent: Thursday, September 6, 2007 12:03:53 AM Subject: [Diy_efi] [slightly ot] Differential Pressure Measurement gauge, alternatives ? Hi Guys, Here is a gauge which I will be connecting up soon to verify some fuel pressure issues on my RB30ET motor running 10psi off a hiflow T3, the gauge is at the max of its scale since the fuel pressure for the motor is 250.1Kpa, Ive opened the unit and it has safe movement for another 10% of scale without major drama, http://niche.iinet.net.au/For_sale/Differential_Pressure_Gauge/small_DSC06030.JPG Although i can use this to some degree, the last time - I actually made a differential gauge from a standard gauge and pressurised the housing from the manifold, it worked for a time, the housing eventually broke, ie Plastic cover. But I did manage to use it for a few days, the problem is it suffered so much needle jitter making it very hard to asses the reading ! http://members.iinet.net.au/~erazmus/Twin_tyre_vehicle/Diff_Gauge_side.jpg So I'm looking for a new differential gauge, like the one in first picture, but that has an oil filled or other damped needle movement and maybe a drag pointer if at all possible, hard I know due to the oil fill issue but since the housing isnt at either pressure and most differential gauges have dual internal plenum then the housing is only ever at atmos... Anyway, I've trolled a few search engine sites and not had much luck, hence my query, Thanks Regards from Mike Perth, Western Australia VK/VL Commodore Fuse Rail panel that wont warp, twist or melt, guaranteed  ! Twin tyres for most sedans, trikes and motorcycle sidecars http://niche.iinet.net.au _______________________________________________ Diy_efi mailing list Diy_efi at diy-efi.org Subscribe: http://lists.diy-efi.org/mailman/listinfo/diy_efi Main WWW page:  http://www.diy-efi.org/diy_efi
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Regards from


Mike
Perth, Western Australia
VK/VL Commodore Fuse Rail panel that wont warp, twist or melt, guaranteed  !
Twin tyres for most sedans, trikes and motorcycle sidecars
http://niche.iinet.net.au