which is quiker

[lodders127]

im wanting to bye a brushless combo but i am looking for something for about £40 and about 12t at the most and i cant find anythink
i have now thought about geting a tuned motor but as i have been looking i have noticed that you can get 15 turn hpi firebolt motors
which would be quiker a 15t or tuned 19t ?
and do you know anywhere in england where i can get a tuned 13t motor if they exist ?