there were a lot of things, you mentioned to help me. But the first thing I wanted to do, was buying a stronger battery.
My reaserch resulted in the conclusion, that the strongest battery that will fit in the tray is an Exide Premium Carbon Boost EA640 with 640 CCA. You suggested more - starting by 700 CCA. Will 640 CCA be enough?
Now I have read, that many of you have moved the battery to the trunk - maybe to get more weight back there. If I move the battery there, i would have to build a rack for it and put new cables in. And I could take a stronger battery (900 CCA).
But wouldn't it be easier to just put the battery at it's orginal place and fix it somehow to the tray? Why do People move the battery to the trunk? If there are more reasons than performance I could consider this. For performance I have some other toys. The Bird is for cruising with the family.
And I always try to keep anything as original as possible. So I've already got my starter rebuilt instead of buying a new one.