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Banned
Join Date: Apr 2004
Location: Portugal
Posts: 1,513
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What's the difference between WUR types (part numbers)
On my way to fix and understand my car's WUR, I realized there's a lot of different Bosch part numbers even for completely similar looking regulators...
Does anyone know what's the difference between them ? I'm guessing different warm/cold control pressures, different times to reach warm pressure ? Is there some cross reference that lists all the possibilities ? |
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09-05-2009, 10:57 PM
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Registered
Join Date: Apr 2005
Location: outta here
Posts: 53,153
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Quote:
Quote:
JR |
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09-06-2009, 05:57 AM
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Registered
Join Date: May 2007
Posts: 26
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Here is the best summary I have found:
http://members.rennlist.com/jimwms/CIS/Testing/wur_specs.html The .XXX number following the model year is the last three digits of the Bosch part number. Note that some discrepancies in the factory literature for some of the 2.7s. - Taylor |
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09-06-2009, 06:47 PM
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Banned
Join Date: Apr 2004
Location: Portugal
Posts: 1,513
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Getting access to a table that cross references all WUR types, not just those used by Porsche, would also be useful.
It might more easily allow exchanges with different types without resorting to the "knocking the pin" kind of adjustment... wishful thinking... |
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09-07-2009, 12:48 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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Hera are a few charts:
  Ignore the "No O2 sensor and Cold" handwritten in. That's just for my engine.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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09-08-2009, 08:44 AM
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Registered
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I think I could make a lot of money if I designed and produced a digital programmable WUR that had a USB connection and used a basic computer program to control it.
I could be rich and famous, if only I was smart enough. It shouldn't be that hard, the only thing it does is control pressure based upon temperature, it has a consistent power in, the only thing that changes is the control pressure out, how hard could it be? Even better it could have a knob on it that has settings for 78 - 79 - 80- 80WO wait even better I could label the knob settings with the CP out. I'm going to work on it. 
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78’ SC 911 Targa - 3.2SS, PMO 46, M&K 2/2 1 5/8” HEADERS, 123 DIST, PORTERFIELD R4-S PADS, KR75 CAMS, REBEL RACING BUSHINGS, KONI CLASSICS |
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09-08-2009, 01:54 PM
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Stella
