The all-new, 2018 Jeep Wrangler JL has made its way to the folks at Prodigy Performance, who’ve taken the liberty of tossing a bone-stock example on the dynamometer to get a base horsepower/torque rating on their own equipment while they work on getting a Prodigy Performance Stage 2 turbo kit ready for installation. The new Wrangler JL can be seen in the video above, in four-door-exclusive Sahara trim, sending all its power to the rear axle for measurement.
In their dyno testing, the folks at Prodigy Performance measured a peak rear-wheel torque level of 202 lb-ft, and 247 peak rear-wheel horsepower. Fiat Chrysler’s 3.6L Pentastar V6 – the only engine available on the Jeep Wrangler JL at the moment – is factory-rated at 285 horsepower/260 lb-ft at the crankshaft. As such, we’re not quite sure how reliable Prodigy’s results are; 202 lb-ft of rear-wheel torque suggests that the drivetrain causes parasitic loss of about 22 percent, but that would mean that this Wrangler JL is making somewhere around 320 horsepower at the crankshaft – hard to fathom for an untouched engine.
Moreover, the torque seems to peak at around 2,600 rpm on Prodigy Performance’s plot – well before the 4,800-rpm torque peak claimed by FCA – and the plot cuts off at 6,200 rpm, before the engine even reaches peak power at 6,400. You can see that horsepower is still rising at the far right end of the curve.
So, perhaps it’s best not to put too much stock in the results of this Jeep Wrangler JL dynamometer test. Even so, the video’s worth it just to hear FCA’s 3.6L Pentastar stretch its legs in the all-new Wrangler. Check it out.