Os 21tm???????

[Double A]

sick of that piece of poop 3.3 so what about the os 21tm any good??

 

[ChucksCity]

from what I'm told os engines are a great step up from the standard 2.5 or 3.3 that comes in the Maxx the os engines tend to hold a better tune which in turn allows them to run more reliably

 

[Double A]

yea thats what I've kinda been hearing just want some more opinions on it cause that 3.3 is so hard to keep it just right i hate it traxxas needs to step up there game with these motors or that the last time i buy untill they put something else in there trucks

 

[Suicide]

i dont know why everyone has issues with them i have 2 that run really good and hold a really good tune.

 

[darnoced]

My sons 3.3 is a great engine. We have been out in temps from -10F up to 75F and all he ever has to do is make a small adjustment to the HS. Pops the front end up at will in 1st or 2nd. Now my 2.5 is another topic altogether......lol

 

[Suicide]

yeah the 2.5 is a POS

 

[insaneatvs]

I have a O.S.21tm in my 4908 Tmax and love it...it holds a tune very well.....I also have a O.S.18tm in my Nitro Rustler, and it is way to much motor for it, and thats why i love it

 

[Double A]

i wish they still made the 18