Project RSC: Naturally Aspirated vs. Zex 100hp Nitrous
Finally, Project RSC was going to have some street credibility. Though powerful for an early 4.6 at 274 rwhp, it had to resort to the juice to make major-league power. All it took was a simple, 100hp shot from a Zex wet fogger system, and our 274 rwhp jumped to 377, while the peak torque skyrocketed from 316 lb- ft to 497. Yes, we missed the 500 lb-ft mark by just 3. Note the billiard-table-smooth power curve, reaching 375 hp at 4,300 rpm and never dropping below that point (or exceeding 377 hp) for nearly 2,000 rpm.
 The Zex fogger nozzle featured...  The Zex fogger nozzle featured a unique tip that improved both atomization and air/fuel mixture. |  The kit came with a variety...  The kit came with a variety of different nitrous/fuel jet combinations to dial in the power increase. |  After installing the 46 nitrous-jet/30...  After installing the 46 nitrous-jet/30 fuel-jet combo (100 hp), we installed the fogger nozzle and hooked up the feed lines. |
 Zex supplied the necessary...  Zex supplied the necessary fitting to replace the factory Schrader valve in the fuel rail. This fitting was used to supply fuel to the fuel controller unit. |  Before installing the fuel...  Before installing the fuel controller, we laid out everything to see how much room we had to play with. The ideal mounting location turned out to be the inner fender area just below the MAF. |  After activating the nitrous,...  After activating the nitrous, we were rewarded with a peak-to-peak jump of 103 hp. Elsewhere along the curve, the nitrous offered as much as 131 hp and a whopping 182 lb-ft of torque. No wonder juicing is so popular in the big leagues. |