Originally Posted by
gwapogi
yeah i know guys..i've also thought that i should have bought the hara edition but like i said,its my first time on rc's and i went to the store and saw the r40 and bought it right away.i didn't even know that there was a hara edition.hehehe.he motor i have on it right know is the nitro star 12 xs sg from hpi.they said that it's a good engine but i want more power..hehehehehe.yeah i'll probably buy the standard os .12 tz because the 5 port version is too expensive...thanks a lot for the help!!!i'm really liking this hobby..
The xs is a pretty good engine. What pipe and fuel are you using? You might want to try changing those first, then get a new engine when yours wears out.