See, I have been building race snowmobiles for over 20 years, have seen allot of so called "technology" come and go, and about 95% of the hype is just that. Hype.

In Drag Racing, yes, the 4 stroke is king. Cause they can bolt on a 30+ PSI turbo on it with a intercooler on it that is as big as a BBQ grill, and yea you can make 450+hp on a reletively "stock" engine. But you could NEVER use it on the trail or the mountains (unless going strait)

The whole sled industry got snowballed (me included, I bought a RX-1, what a over-rated POS) when the 4-Stoke sleds came out. Weighs 200+lbs more, and makes less HP and Torque, all at a 40% price increase.

Turns out to be, that a guy could buy a 700-800cc 2 stroke sled, bolt on a smaller 14-16psi turbo with no intercooler, and makea easy 240hp sled that can climb with anything making more, caust it doesnt have to haul around all the extra weight to do it. All with less stuff to break and go wrong.

I jumped on this topic because I think allot of people have the wrong mis-conceptions and what technology really could be doing for us.

If I had the money, I would love to take on the challange and build a .21 sized EFI with a powervalve, but I have to make a living.

The R/C industry won't do it, they are making too much money on it now.

Food for thought - Most of these manufacturers make a 3, 5, 7 port versions of their engines. And consider a average 3 port costs , $230? Then take their top of the line 7 port, $500? Do you think it takes another $250+ dollars to make that engine? NO! Maybe another $10 in machining time. Thats it.