Ok fish hunter give your address and I will send you the dime. Even though I dont currently own a sled, Ive been in and around sleds since I was making pudding in my diaper So I think I might have an informed opinion on sportjets (yuck). I even went on a body search for someone who died because of a sportjet clogging up with debris.
You burn more fuel with a sportjet than you would with a V-8. V-8's last longer than a 2 stroke will. Less maintenance with a V-8, plus you can due the work yourself.
On top of all that, a V-8 has a lot more torgue and horse power. Horese power comes from RPMs, torque doesnt. There is no such thing as too much power in a jetboat, especially if you ever plan on using it on a river.
I can say all thatbecause Ive been in 2different sportjet powered boat and I am also running around in 2 V-8 powered boats quite often, 1 is a 21' totally Customweld and the other is a 21' North River Ranger. Both boats have Vortec 350's and Hamilton 212 pumps.
Ive also been in and ran many different outboard powered boats ranging from a 16 foot with a80 horse merc to a 21' Jetcraft powered by a 200 Yamaha Phase III. Out of all the boats the Jetcraft is the fastest at 58 mph with 3 people. It jumps out of the hole in about a boat length and 1/2. The only draw back is it drinks the fuel...... A Sportjet cannot push a 21' boat that fast. Nuff said.....