nice paint job these two engines are very close... I think I give the nod to the discovery, just because it's newer technology and has the new carb, but the 3 port is a great engine. One of my favorites of all time. I know I'm not much help, but it's just as hard for me to make up my mind as it is for you If it was me buying the engine?... I would do the 3 port. I wouldn't run the 2057 either unless we were in Europe, then it might work. 2013 and 2058 are the way to go... for your truggy, use the 2013.

i just bought a orion mte .21 engine pipe combo is this a good motor i have never ran orions also i have sheets of od 97t plugs will they work with this motor and is the 2013 that comes with this motor going to be ok in my buggy and i have 2035 2053 all jps 2060 will this be any beter i am looking for good fuel consumtion and smooth power good power and what inserts work in this motor thanks for any help

That's a great engine. Idle a few tanks and break it in slowly. After running rich for about 3/4 to a gallon, you can lean it out. 2013 is King. We use 6.5 inserts in most of our engines. Not sure about the OD plug...

i have run the 97T on mine with great success

The 2013 will be an awesome pipe for that motor.. I've considered the MTE engine, but I am holding out for either a Tebo Or King Worlds edition combo..

where's the like button?

So whats to come of the MTE edition of Engines now that Mike has signed with Nvision???

I was thinking about that too. Guess they will be discounted heavily now. I am surprised they put that much effort in having an engine with his name, and not signing him long term.

I would'nt really worry about it, that same motor is already released without his name on it.

Paul do you have the part number for the 6mm insert or the link to amain. Thanks Paul

I was also looking for the 6.5. Thanks Paul

I was in the market for a new motor and couldn't resist the price! My order is in just waiting for the kit to be released.

Pitpop - You guys ended up running the #6 plug at CRCRC?

evryone thanks for the help the only other question i have is which inserts fit the crf mte .21 novarossi picco werks or are orion just diff from the rest
thanks aging

I believe works. I asked paul for some amain part numbers.