Engine info (is it a force .21?) pics

[lykan]

This engine came in a buggy I recently purchased. From the resaerch I did, it seems to be a RTR ofna engine, the force .21

I am confused as it says 3.5 on the block, does anyone know for sure what thi s engine is, and maybe have alink laying around to the specs on it? It seems more powerfull than the savage .21 so I am thinking about swapping. More power to the savage, less to the the buggy.

I was just wondering if it might be a .25? I have no idea why it says 3.5 on the block..here's the pic

 

[Buncrana]

The 3.5 refers to 3.5 cubic centimeters which I believe translates to .21 displacement.

 

[Jamie]

Yeh 3.5 CC is right its around .21 mill.

 

[toscano1]

Check this out

http://www.ofna.com/eng-force-26.html

 

[lykan]

Thanks Toscano, looks identical to that minus the head, mine is blue

 

[R/C Madman]

Does it look more like this one??


http://www.ofna.com/eng-force-p4.html

 

[lykan]

That's it.

 

[mugenseiki]

This engine came in a buggy I recently purchased. From the resaerch I did, it seems to be a RTR ofna engine, the force .21

I am confused as it says 3.5 on the block, does anyone know for sure what thi s engine is, and maybe have alink laying around to the specs on it? It seems more powerfull than the savage .21 so I am thinking about swapping. More power to the savage, less to the the buggy.

I was just wondering if it might be a .25? I have no idea why it says 3.5 on the block..here's the pic

3.5ci is a .21 engine, my force .28 says 4.6 they are reliable engines. anything thats over 4ci is not a .21.

 

[MotoGod]

Sweet! 6 year old thread gets a reply! Let's put it back to rest ;-)

 

[mugenseiki]

Sweet! 6 year old thread gets a reply! Let's put it back to rest ;-)

i saw the link on google and didnt realise how old it was

 

[EB4S2PRO]

It's good that the 6 year old thread still gets replies cause it's 2017 and I am looking at getting a force .21 engine and this is some useful info except the web links are dead.

 

[DXtreme1]

Speaking of Ofna/Ho Bao. They have a great accessory for pull start users.

 

[EB4S2PRO]

That looks good for those who pull start.

 

[cbaker65]

Lol....I guess that beats getting those blisters between your fingers.....ouch!....

The force 21 is entirely different from the Hyper 21's ,an the parts don't enter change with each other ,like the back plates!
The force was more like a sport engine that was on the RTR's an the Hyper's was more for race ,an I believe was ported different.
I'm not sure about the Hoboa versions though ,The Force & Hyper are old school versions!....