30 Minutes to E-Z Horsepower
These days, when it comes to making more power everything seems to be more consumer friendly -- bolt on this or plug in that. Computers made some people feel uncomfortable, and purists sounded the death knell about government restrictions. On the contrary, computer upgrades for more power couldn't get any easier. Companies such as Superchips, Hypertech, and JET have created simple-to-use power-adders that can be placed on your vehicle in your own driveway in no time at all. Combine the programming with a basic intake and after-cat exhaust, and you have yourself a sweet little deal that can be done in a day for huge gains in performance and driveability.
We had a rather unusual application in that our Dodge Ram Quad Cab was equipped with the little 4.7L motor. After bolting on a 10-inch lift and some 37-inch BFG Mud-Terrains on 17-inch Weld wheels, all the while running 100 percent stock intake, exhaust, and gears, we of course turned our once-peppy truck into a good-looking pig. Nobody likes to drive a gutless truck -- especially us -- so off we went to JET with our power shortage woes. JET prescribed one of their plug-in modules that piggybacks the factory computer and retunes the data before sending it off to the motor for use. We planned for the intake and exhaust already, but our interest was piqued to see what the upgrade would do all on its own. Follow along as we show you what we learned.
According to JET's in-house Mustang Chassis Dyno, our little Ram motor picked up an astounding 23-plus hp at the rear wheels in Second gear at 5,500 rpm. This is not too shabby for a simple plug-and-play computer module. A quick shakedown cruise around the block confirmed the newfound power with a seat-of-the-pants feel. Our Ram tester was back to about stock before the big tires. Now we just need to get the intake and exhaust going so we can really up the ante.