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Old 03-18-2011, 02:04 PM   #31 (permalink)
Daox
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Quote:
Originally Posted by saand View Post
sounds good, also a standard transistor bjt should give you enough current to switch the solenoid, these are often cheaper and easier to get compared to mosfets that will activate off 5v or 3v3. so something like a bc546 or similar device which you should be able to get from any electronics shop.
Unfortunately, the starter solenoid is what is drawing the 10A+ at start up. Its powers the mechanism that moves the starter pinion into place and I'm guessing also connects power to the starter motor at the same time. Its a fairly heavy assembly that gets slammed into place. If I have a smaller transistor I'll use it, but I know I have a few mosfets on hand, so thats why I mentioned it.

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