RAPTOR POWER

The Ford F-150 Raptor and Tigé RZX20 both carry Raptor powerplants. Aside from their Ford engineering roots and the Raptor name, though, they’re significantly different animals.

Ford’s turbocharged EcoBoost V-6 truck engine replaced the original 2010-14 SVT Raptor’s normally aspirated V-8 several years ago, to improve fuel economy and emissions without sacrificing performance. The twin-turbo setup builds boost faster than a single large turbo, and helps ensure the powerband matches that of a grunty V-8. The engine is flexible, working well in a variety of conditions, from rockcrawling in 4x4 Low to city traffic to rushing down the interstate and, naturally, towing and launching.

Decidedly understressed compared to the Raptor’s truck engine, Indmar’s 6.2-liter marine V-8 is designed to pull hard literally from idle—and then run, and run, and run some more at fairly constant speeds. Using Ford’s Super Duty truck block, the Indmar metamorphosis to a Raptor marine engine includes tuning to deliver peak torque from 2,500 to 3,500 rpm—ideal for sportboat duty—and a deep-scavenging oil pickup to maintain oil pressure during extreme hull attitudes.

Here’s the numeric lowdown on the Raptor siblings.

ENGINE NAME MANUFACTURER DESCRIPTION

DISPLACEMENT (LITERS) ENGINE BLOCK/

HEAD MATERIAL DRIVETRAIN

BORE AND STROKE (IN.) HORSEPOWER @ RPM TORQUE (LB.-FT. @ RPM) HORSEPOWER PER LITER RECOMMENDED FUEL

WARRANTY (YEARS) PRICING

FORD F-150 RAPTOR

ECOBOOST H.O.

FORD

TWIN TURBOCHARGED DOHC, 24-VALVE V-6

3.5 ALUMINUM/ALUMINUM

10-SPEED AUTOMATIC, SELECTABLE LOW/HIGH RANGE 4WD

3.64 X 3.41

450

510 @ 3,500

128.6

PREMIUM UNLEADED

(E.G., 91-OCTANE)

5

$72,785

TIGÉ RZX20

RAPTOR 400

INDMAR

NORMALLY ASPIRATED SOHC, 16-VALVE V-8

6.2

IRON/ALUMINUM

INDMAR VELVET DRIVE (IVD) V-DRIVE

4.02 X 3.74

350

404 @ 2,500-3,000 RPM 56.5

MIDGRADE UNLEADED (E.G., 89-OCTANE)

5

$126,754 (WITH TRAILER)