Amp Draw on Ford 2.3

[CushionArtist]

Anyone know what amp draw the stock ignition system pulls? Trying to size my battery based on amp hours. I'm at work and can't check it myself until tomorrow.

Thanks

[84Dave]

It appears you're not running an alternator. A little off the Subject, but a thought comes to mind. If the stock ignition/module will stand it, why not use a 12V-to-16V converter off the battery to power the ignition system? Starting in the early 90's, I've always used a JACOBS converter to supply 16V to the ignition. But the Pertronics module in the distributor would easily handle the voltage. And the Jacobs converters were/are expensive. I haven't checked, but there must now be converters out there that are much cheaper & would supply the relatively low current required by the ignition system? -Dave-

[car62]

id run an alternator...84Dave did the breakdown awhile back and it seems to me that even with a drained battery a 50 amp alternator used less than 1HP.

[boportt]

just use a marine batt and u be fine even with an elec fan and elec feul pump. u'll be fine for all nite w/100+ laps thats wat i got and never hadda prob. same battry in the car for 5 yrs. just trikle charge during the week

[Milford Motorsports]

1000 amp marine battery will do what you need.The Duraspark box will start to cut out at 10v.We used to use a 900cca auto battery,but it was usually down around 10-10.5v after the feature.