Date:         Sun, 23 Aug 2009 15:28:39 -0700
Reply-To:     Rocket J Squirrel <camping.elliott@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Rocket J Squirrel <camping.elliott@GMAIL.COM>
Subject:      Re: ANSWERS!!  Re: Engine electrical power requirements?
Comments: To: mark drillock <mdrillock@cox.net>
In-Reply-To:  <4A8EEB96.1040602@cox.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Excellent data -- thanks, Mark!

This does not conflict badly with Don Hansen's experience of getting home
on a 42Ah battery (no headlights, etc.) on a 400-mile trip. If the engine
pulls 6.5A, then a 42Ah battery might manage 6 or so hours.

However, Scott Daniel writes to say that,

 > I can tell you, my 88 740 Volvo with similar electronic fuel injection
 > and ignition, can suck down battery power fairly quickly , like a half
 > hour of running without charging from the alternator, will pull down a
 > 'fair half decent' battery enough that it can't crank strongly enough
 > to start on the starter.

This result is a different kettle of pickles altogether.

--
Mike "Rocket J Squirrel" Elliott
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
Bend, OR
KG6RCR



On 8/21/2009 11:46 AM mark drillock wrote:

> Ok, on my 1987 2.1, all wbx probably similar.
>
> Total use by fuel injection and ignition at idle = 6.5 amps
>
> Measured 3 places and added them. Measured at relay sockets and in
> firewall wiring box.
>
> Fuel pump = 2.3 amps
> Coil and relay triggers = 2.2 amps (varying)
> ECU and idle circuit = 2 amps
>
> Mark
>
>
>
> Rocket J Squirrel wrote:
>> Well that's a right kind offer and I bet the 1.9 and the 2.1 are close
>> enough for my purposes. Richard A Jones sought that information a year
>> ago
>> and was unsuccessful, so this could go into the wiki, too, in case
>> someone
>> else wants to know.
>>
>> Fuel pump, ECU, senders, ignition ... I guess a temp sender sends current
>> out to the dash gauge. Anything else electrical needed to keep the engine
>> running?
>>
>> --
>> Mike "Rocket J Squirrel" Elliott
>>
>