Swampwrecker's Xterra is running about 40HP less than your SC Frontier and has lower torque as well. Also, his trailer has greater frontal area for wind resistance than your boat, which is very significant at highway speed. Translation of this is that your SC will have much greater oompf at highway speed and acceleration than a non-SC first generation Frontier and Xterra. Plus, you get the added benefit of getting to listen to the SC whine.
In Colorado, I got a kick out of the SC when going on I-70 west from Dillon to the top of Loveland Pass at the Eisenhour Tunnel. This is about a 5 mile long, steep grade that tops out at about 11,000 feet. I would set the cruise control at 70 mph and the SC Frontier would fly by the BMWs and Mercedes that were panting up the grade with their normally aspirated engines. The engine would be downshifted for half or more of the grade but it would hold the speed fine.
As a side note... As big a difference between the normally aspirated and the SC VG3.3 engines, the step from the SC to the VQ4.0 in the 2nd generation Frontier/Xterra is even greater. With the VQ4.0, the Nissan trucks are finally powered up properly.
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