Land Rover Range Rover 4.6 HSE Callaway, 1999
Land Rover Range Rover II (P38A)
Land Rover Range Rover II (P38A)•
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Chassis No.: SALPC1446XA405642
- Exterior: Epsom
- Interior: Black
- No. 015 of 235
- 4.6L V-8 modified by Callaway
- 240 HP and 285 lb-ft of torque
- 4-speed automatic transmission
- 9.6:1 compression ratio
- Callaway modified cylinder heads, valve guides, seats, upper plenum and carbon air intake
- Rocker shaft pedestal plates permanently attached to the head
- Callaway super-tuned Lucas/GEMS Engine Management System
- Callaway modified 12.94:1 High Range transfer gearbox ratio and 3.481:1 low range ratio
- Free flowing Callaway Y-pipe exhaust
- Strengthened front axle shafts and 4-pin differential section
- Special Vehicles Unit Proline Land Rover 18 inch alloy wheels
In the late 1990s, Callaway Cars was approached by Range Rover to create a version of its outgoing flagship 4.6 HSE, which would alter the company’s utilitarian reputation. Under the direction of Land Rover, Callaway Cars of Lyme, Connecticut, engineered several key improvements for the 4.6 HSE. These components were then sent to the Solihull Land Rover plant. Just 235 were made, one for each of Land Rover's dealerships across the U.S., and only for the 1999 model year Range Rover. Up to that point, these were the highest performance Range Rovers ever produced. The short-block engine was essentially standard, with much of the tuning appearing in the cylinder head.
Intake and exhaust flow, power’s best friend, was optimized by modifying the port, valve seat and valve guide geometry. An increase of 17% and 15%, respectively, was achieved. The custom Callaway plenum and air cleaner box was coupled with a carbon fiber inlet tube to provide the least restrictive air flow possible, and the Lucas GEMS ECU was appropriately tuned to make use of the mechanical upgrades. The drivetrain was also tweaked to improve power delivery and efficiency. The transmission control unit was replaced, which provided better shift points to match the engine’s increased power.
The electronic shift transfer case was modified to improve acceleration, as well as provide better off-road "crawl" performance. The front axle shafts and differential were strengthened due to the jump in torque. The Callaway tuned dual exhaust system reduced backpressure by a very significant 43%, yet the interior sound level was virtually unchanged. In terms of body trim, what was ordinarily black plastic on the 4.6 HSE was now matched to the body color, and a Callaway badge was added to the lower rear tailgate. Additionally, Proline 18-inch special wheels were fitted to these Callaway Range Rovers.
The legendary Reeves Callaway, who to this day still drives his personal example, proclaimed the Range Rover 4.6 HSE Callaway his "favorite daily driver."
https://www.mecum.com/lots/495039/1999-land-rover-range-rover-4-6-hse-callaway/
