I'm trying to upgrade my nitro engine from .18 to .21 can any body tell me if you can put any engine on your car with my is an off road boggy made by smartech or I has to find the right one?

Plus can any body tell me. will it make a big difference on speed or not?

I'm a little new on this and don't know much

so any help will be appreciated.

Thank you.

i didnt understand u r question?? but upgrading to a .21 can make a big difference in your initial pick up, top speeds wont be that much different,

Actually there is no such thing as a nitro engine. We have Glow engines, gasoline engines, diesel engines and Co2 or compressed air engines.

Actually there is no such thing as a nitro engine. We have Glow engines, gasoline engines, diesel engines and Co2 or compressed air engines.

But you did tell me what I want to know.
will I have any problem to fit in the new engine because is biger maybe?

Thank you.

And sorry for my spellings.
My englisg is not to good.

If a bigger engine will fit in the mount then yes you can probably use a bigger engine. Of course you will need a clutch and other items and they may not fit.

OK.
Thank you

O.S. max .18 CV-R/TM/TZ will give .21 performance in a drop in package...

What about this one os .18cv-rx.

The one that is on my boggy right now is a .18 team infinity.

some one mention me that os .18cv-rx is a ruilly fast engine but I was tinking why buy an other .18 when I already have one just made by a diferent company.

Do you have any idea how good is this .18 team infinity?

Thank you for you help man.