what size alternator will be enough for a Hifonics 2010D amp. my stock alt is only 60amps, i have already done Big3.

id try to get one around 200 amps just to be on the safe side, and also invest in a few batteries.

a d3100 is good enough in the trunk with a 200 amp alt.

thanks!

Here are a few links to some great alt companies. The last one Im not so familiar with but Ive heard good things recently. They might be a little pricey but they are worth it.

http://www.dcpowerinc.com/

http://www.mechman.com/

http://www.ohiogen.com/

http://www.excessiveamperage.com/

I recently purchased a new alternator myself. I have done some research, and DC and Ohio both offered alty's with the best idle amperage. I hear a ton of good things about mechman as well though. all I'm saying for my two cents is that idle amperage is the most important, so a 200 amp alt from ebay will probably be still be a complete failure compared to say...my new DC 150amp. re-spun alty's put out less amperage at idle then their original OEM. best alty's are one's that are custom built from ground up. just my .02 cents.