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The more flow, the more HP. The more boost the more peak torque. Smaller turbos will reach peak boost sooner than bigger turbos, but the torque curve falls off like a mountain because it can't maintain the flow at higher rpms. The higher the rpm the more air the engine takes. Smaller turbos can keep up with air flow. The bigger turbos can maintain higher flow longer in the torque curve. Hence the HP will be higher . Remember HP is a function of torque X RPM .
Yea, my stock turbos can do 450 Ft. lbs. at 19psi of boost. But what is the torque at 6000 rpm or higher..probably under 300 ftlbs? On the bigger turbos the torque it is much higher in the upper rpm range , hence the higher hp.
Arizona'a most powerful 600HP 15 second Z
More powerful than a stock TT , slower than an NA
Dynoed 515 rwhp and 420 ft.lbs @ 16psi 89 degrees.
533 rwhp and 450 ft. lbs @19 psi and slipping clutch
and heat soaked motor , 85 degrees.
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