How many amps does a stock TBI 350 engine draw...when running?

 

It's not an electric motor, so none really.
It's actuallty hard to elaborate further, if you are curious about a draw it's not the engine that is pulling it. So I'm a little confused about your question.

 

OK…to be more specific, the electronic parts. The coil and the computer.

Still confused?

 

okay, um this is a complete guess because I've never been interested in what the amp draw would be at idle or anything, but I'd say 10-20 amps....if that. Shot in the dark. That is independent of what motor you're running though. Nothing the alternator can't handle in any case.

Why do you ask?

 

I am adding up max amp draw and what the engine takes to keep it running is an unknown to me. Yes...the power that is required for the coil/comp is no problem for the alternator.

 

i believe DLV555 is pretty close.
the fuel pump pulls around 5 amps, i think the ignition system pulls around 2.
probably around 5 or so for the ECM including injectors.
if you have an electric cooling fan, they surge up around 20+ amps when they first come on & then drop. depending on how big the fan motor is, the size & number of blades, they drop down anywhere from about 5 amps up to about 10~15 amps. double that if you have dual fans.
with no lights, fans, A/C or anything else, a 40 amp alternator would be big enough to keep the battery up without cooking the alternator.

 

Fuel pump ~ 3-5 amps
Injectors ~ 2-3 amps each varies with duty cycle
Ignition Module/Coil ~ 5 amps
ECM ~ 5 amps

That would be like 15-20 amps.

 

Thanks guys...that was all the info I needed.