Originally Posted by
Mongoose57
Well since I now need a battery I have been looking at lightweight VS standard, my calculations show that if waight savings were 30 lbs then on a 3,100 pound car running 14.6 in the 1/4 then you mathematically get 1.4 tenths or just over 2 HP. Well you have to ask your self if that increase is enoughf to warent the possible headaches ? I live in the Pacific North west, and most of the time in the winter it averages out to 3 c / 37.4 f so the 64 million dollar question is, Is this to cold for a lightweight that sits most of the winter and gets only weekly start ups Also note that the 06 service manuals state that @35 mili amp parasitic draw that 20 days may be enoughf to inhibit start in a battery that is not in top shape.
Cheers
Mongoose57
Unless you are racing for time,and/or wanting to create some space in the engine compartment for other Mods., then I'd say spare yourself the headache(jmho). One thing that I'm currently working on is adding a second lightweight battery(in parallel) in the trunk, in addition to the lightweight in the engine compartment. Each battery is only 20ah, so together I'll have 40ah. This hopefully will give me a little more peace of mind w/ my capacity, and still give me the space up front for my water/meth system. I'll still be plugging in the battery tender, but when I forget on occasion, I won't be stressing on it so much. And since I'll have the added power in the trunk, my plans are to install a 12v 50amp recept. for plugging in air compressor, and a standard 20amp recept. for spotlight or any other 12v goodies.