Team New Zealand's boat could become even faster.

The team is tweaking Aotearoa as they approach Sunday morning's crunch time in the final of the America's Cup.

Tactician Ray Davies said they are working on a long list of changes to crank up the boat's speed - from tuning the wing to adjusting rudders.

But he told Rachel Smalley they are keeping a close eye on Oracle Team USA.

"They're sort of changing their boat to look a little bit more like ours, which is quite interesting. There are a number of things on our list that will make the boat go quicker, so yeah we're pretty excited about that."

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