Measured Amp Draw - '69 510

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VelvetHammer
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Measured Amp Draw - '69 510

Post by VelvetHammer » 20 Jan 2019 19:23

I need real world amp draw info for my EFI project so I bought a cheap clamp-style amp meter.
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For those interested here are the measured results thus far:

Low Beams - 2.8A (x2 = 5.6A)

High Beams/ Inner - 2.8A (x2 = 5.6A)
High Beams/ Outer - 3.7A (x2 = 7.4A)
-->Total high beam circuit draw when on = 13A

Horn - 6A each (x2 = 12A total)

Turn Signals - 0.5A per bulb (x2 = 1A)

Side Markers - 0.5A per bulb (x4 = 2A)

Wipers Low - 4.2A dry/ 3.4A wet
Wiper High - 15A dry/ 13.6A wet

Electric Fan (Spall 13"? I will measure and update) - 24A from dead start/ 7.4A running at full speed

... Looks like my notes got murky, I need to remeasure or measure:

Brake Lights/ Park illumination - ?? 3.4A (can't remember if this was single tail light or both)
Brake Lights/ Brake depressed - ??

Back Up Lights - ?? 3.3A (likely both bulbs, but will confirm)

Starter Solenoid - ?? This will be the small wire to solenoid

Battery wire to Starter -?? Main wire from battery

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Byron510
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Re: Measured Amp Draw - '69 510

Post by Byron510 » 21 Jan 2019 23:54

The fan number doesn’t suppress me. I have 2x 12” fans on the Bronze, and they kick in simultaneously - I’ve never measured but it’s a huge power draw! The fans are impressive. Standing at the trunk, I can clearly feel the air rush by my legs when the fans kick in! They are that good!

Byron
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because the opposite never works.

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VelvetHammer
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Re: Measured Amp Draw - '69 510

Post by VelvetHammer » 22 Jan 2019 00:04

Yeah the fan wasn't a total shocker but I'm a bit surprised it's as low as it is during steady state run. Thought it would be higher for some reason. Oh, btw I measured my fan and it's 13" as I had guessed.

I'd love to get the load data on the starter solenoid wire (in the OEM engine harness I think it's big fat white wire), and battery wire to starter.

It's my understanding you can run as small as 4ga wire from battery to the starter (obviously depending on length of run). My battery is in the trunk so I'm running 0/1ga up to the interior firewall where it goes to my PDM, then I'll break out, ideally, to a 4ga wire from there that'll go though an Autosport connector (with similar routing to Byron's tucked wiring) to the starter. I'm hoping the peak transient load shouldn't be that much.

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