Newbie question about engines

[AutoMX]

I'll get right to the point. What does the # indicate in nitro engines? Is it displacement or something else.

My knowledge is pretty minimal. I got ripped off when I thought I was buying an engine for my Duratrax Streetfoce GP (which originally has a .15) and a .21 came in. :shrug: So at least I know that one won't fit the other, since the shaft sizes are different.

Also, what am I looking at as far as used .15 engines go? I am looking at very basic setups, so no competition stuff in mind. Thanks for the help.

 

[Tarant]

the .15 means cubic inch's same with the .12,.18,.21 and so on it just refers to cubic inch's.
But some engines use cubic centimeters like the traxxas TRX which is a 2.5 cc but it is also a .15.

 

[ImBroken]

Personally, I would recommend buying a new .15 engine... Some of the better quality engines have come way down in price lately, because of the .21 craze...
You can't go wrong with an OS engine...

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBZ30&P=ML
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGGP6&P=ML

 

[AC48]

I would definetely suggest an O.S. .18 CV-RX. ImBroken has it linked, its the second one. They are at a great price right now, definetely pick one up.

 

[cobra198]

I aggree with AC48 and ImBroken. The O.S. .18 CV-RX is a great engine. A friend of mine got one a while back. It is a screamer, and runs great. Plus you can't beat the price. Anyways thats just my 2 cents.