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when i dyno'd a 2005 5.4 3v i had in my stang it had 250rwhp at 4250rpm/340rwtq at 3650 rpm STOCK untouched, untuned. it makes more torque at the tires than most 5.3's make at the crank. the dyno was done on a dynojet in a chevrolet SCCA race car shop in smyrna tennessee. thats sae corrected UNTUNED. when i finished a few mods it made 277rwhp at 5100 and the same torque. not much really. but it was a near stock truck engine.
pullies, cmrc delete, modded intake manifold. nothing else. dyno shhet is gone, but im sure the shop will supply it. it made 325 rwtq at 2500. ran 8.5 at 82.5 mph untuned. pulled the motor before i dyno tuned it. bad gas mileage.
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2011GT E85, Kooks 1-7/8", 3" offroad X, 2-7/8" overaxles, Roush mufflers, CobraJet intake, SCJ monoblade throttle body, drew 4.5" CAI, Boss302S exhaust valve springs, Baby CobraJet exhaust cams. 3.73 gears, lightweight 300A. 455rwhp @7800/410rwtq SAE 5000lb roller dynojet
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