sorry man not out for speed just 3" water running . theres nothing like doing up stream over rapides . if you check out the nitro vee forum i had it on the stock drive . and it was way to fast and ran really great on the stock drive line . if i wonted that crazy speed i would have went with your set up for better contral . but i didnt . anyway i was going the same speed as a .18 os in here on a 40mm prop at only 1/4 trottle if i gave it any more then that it was uncontralable the way it was . at the way its running now its in the ball park of 25-28 mph i know i can get it up to this just under this speed if i can get for rpm out of it . http://www.youtube.com/watch?v=hJNx468n45E thats the same drive but electric . and here is this boat stock with a os .18 http://www.youtube.com/watch?v=8M-0SBxqeOA