I am new to nitro so sorry for the newbie questions. I just got my first Inferno GT and it has an Axial .28 and I only get 5-6 minutes of run time.

I have a RC8T with a Werks B5 and I can get 8 minutes of runtime. It is a .21 but seems to have plent of power for the truggy.

Would a Werks B5 .21 work well in a GT, it seems most people have a .28 is there a reason? or do you have any other recommendations for $175-$225 price range that would have more power and better fuel economy.

Thanks.