Is a team infinity 15 engine any good? Because I'm think of putting a new engine in to my kyosho ultima buggy.

ive never even heard of it. i think you might be better with a more reputable name like o.s., novarossi, lrp, etc. unless someone whos run one can prove me wrong on this.[&:]

i used to have a power racing .27 and it ran fine. had some good power

You're scraping near the bottom of the barrel with that engine, for not much more money you could get an OS or Thunder Tiger engine of much better quality.

Thanks, I'll keep that in mind.