How Ford Upgraded a Family SUV Engine for Bronco Raptor Duty


How Ford Upgraded a Family SUV Engine for Bronco Raptor Duty

We’ve all known a Ford Bronco Raptor was coming, but nobody in the public Broncosphere has known for sure how Ford Performance planned to endow the Bronco with F-150 Raptor-worthy performance—would it do so using an EcoBoost V-6 (and if so, which one?) or a Coyote V-8? Well, now we know: The Ford Performance gang has worked its magic on the 3.0-liter EcoBoost twin-turbo V-6 from the Explorer ST, modifying it extensively to suit the Bronco Raptor‘s mission, which is to “reward the revs.” (For more on the V-6/V-8 decision, head here.)

That means the engine should produce meaningful power all the way out to the far reaches of the tachometer while the standard 10-speed automatic transmission’s gearing ensures that power is easy to explore the top of the tach. Here’s what it took to turn a family SUV motor into a desert stormer for a hardcore 4×4, plus the modifications needed to get that power safely routed to the ground.

You’ll recall that the 3.0-liter EcoBoost is basically a bored and stroked EcoBoost Nano family sibling of the compacted-graphite-iron-block 2.7-liter powering other Broncos, so it bolts in with relative ease. Relative to the Explorer application, this Bronco Raptor 3.0 features unique cylinder heads that eliminate the exhaust-gas recirculation and emphasize maximum air flow into and out of the engine.

For the full story, check out this article from Motor Trend.