3.0L Noble compared to 5.7L on the GT, massive is a relative thing. How does the Noble compare to the GT? My guess is at lower speeds to about 110 mph or on a tighter course the Noble will leave a stock GT.
Well my Noble runs 506bhp (at the crank) which is rather more than the 352bhp standard. On a tight circuit the Noble just destroys the GT. All said and done the 500kg extra the GT carries around is always going to be a problem.
On the straight, my GT with the pulley changed (621bhp at the crank, on the same roolers as the Noble posted 506bhp) the Noble pulls a 1 - 2 car length off the line. The GT then pegs it until about 135mph, then the GT just goes past and the gap gets bigger and bigger. The Noble hits the limiter in 6th @ 180mph (GPS). At the same venue the GT VMAX'd @ 190mph. It's a 1.6 mile straight.
The Noble feels much quicker than the GT, but the GTs really long gearing is a lot of that.