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N75 - is it 078 906 283 B? anyone know how much $$?

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Old 02-10-2003, 06:47 AM
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N75 - is it 078 906 283 B? anyone know how much $$?
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Old 02-10-2003, 08:16 AM
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Default The "ECS Race N75" which is from the Ur S4? I have
this part number...
034-906-283-J

Not sure if it's correct though
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Old 02-10-2003, 08:23 AM
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Default actually I'm just looking for the stock N75 (for 2001 S4)
thanks anyway though!
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Old 02-10-2003, 08:35 AM
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I think its actually 034-906-283-H
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Old 02-10-2003, 08:50 AM
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Default I just called around...
A local dealer quoted me $73.26, clairparts quoted me $54.14. I went ahead and ordered from Clair. Hopefully that's the right part number
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Old 02-10-2003, 09:30 AM
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it's the right #
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Old 02-10-2003, 09:50 AM
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thanks Piggie!
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Old 02-10-2003, 12:52 PM
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=)...btw, i've ran into bad N75's that were brand new.
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Old 02-10-2003, 02:04 PM
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Default great...
any suggestions as to how to bench test one?
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Old 02-10-2003, 02:09 PM
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Default that's the crappy part...the valve still clicks open under 12V, but, you
can take a paper clip and shove it into the N75 inlet (the vertical pipe in the "T") and see if it opens and closes at a millimeter or so's distance. If it overboosts, just turn the screw clockwise a tiny bit. Don't tweak it too much because the little piston in there can bind up (the internal spring is weak as water). The coil resistance should be about ~30 ohms.

Take care,
Mike
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