Z32 Factory alternator voltage

Discussion in 'Technical' started by mtopxsecret6, Jan 9, 2021.

  1. mtopxsecret6

    mtopxsecret6 Member

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    Hi everyone, just curious as to what the factory alternator output voltage should be at the battery terminal when running? Also, the amps output, is it 90amp/hr? How does that side of it work?
    Thanks
     
  2. rob260

    rob260 Moderator Staff Member

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  3. mtopxsecret6

    mtopxsecret6 Member

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    I had a look at the link, thanks.
    Though what voltage is the z32 alternator producing? Is it at least 13.5v or a specific target there designed for?
    My battery is a 85ah battery, and the alternator is 90amps, is the alternator big enough for my battery?
    Thanks
     
  4. rob260

    rob260 Moderator Staff Member

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    There isn't a specific target voltage for an alternator on this car compared to another alternator on that car. If the voltage measured measured is in the range that I mentioned under the conditions that I mentioned then it's working.

    The two are not connected.

    Ampere Hours are not usually referenced on automotive batteries unless you have a deep cycle battery. Which is usually not ideal. Anyway 85ah means that the battery can supply an electrical load of 1 amper for 85 hours.

    A 90a alternator can support 90a worth of electrical load. In a factory car this is plenty but if you were to run multiple fuel pumps, big sound system and electrical cooling fans (for example) then you may need to consider a higher capacity alternator.
     
  5. mtopxsecret6

    mtopxsecret6 Member

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    Awesome, thanks Rob! Ill do some testing over the lockdown.
     

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