Yeah that sounds like the goldberg ARF then. Its set to take a 90 - 120 four stroke. I like a little extra power so thats why i was thinking of putting a 1.8 two stroke in it. I have a link to the site with more info on it below for ya.
http://www.carlgoldbergproducts.com/sukhoi26.htm
Good Luck,
Tim Hudson
If I ain't Flyin, I must be Dyin