Page 136 - JGS4x4 CATALOGUE

> Performance

PSI Power Tuning

DA4419 The Power Box houses a digital microprocessor which
intercepts the fuelling signals being transmitted from the
Improves torque ECU to the fuel pump; it then modifies them to ensure
the exact amount of diesel required for enhanced
Improves m.p.g performance. Such efficient use of the fuel optimises
consumption, reduces smoke emissions and there is less
engine stress, enhancing engine life in many cases.
The Power Box improves torque enabling the vehicle
to change gears earlier and hold higher gears at lower
speeds, making driving more pleasurable.
The unit fits using the original manufacturers plugs; these
existing plugs are opened and the Power Box is secured
in between. Full fitting instructions are included with every
unit.

Features
> Plug-in unit
> No intervention with the original ECU
> TÜV approval
> Compact size
> Shock resistant & waterproof
Performance for Defender - Td5
Power improvement - before / after Standard 121Hp 90Kw 300Nm
Power - HP Power - Kw Torque - Nm With PSI 158Hp 118Kw 374Nm
DA4418 Freelander 1 - Td4 - 2000 - 2006 110 / 135 82 / 101 260 / 309 Benefits
DA4419 Range Rover P38 - 2.5Td - 1995 - 1999 134 / 162 100 / 121 268 / 319 > Can be removed prior to sale or used as a selling point
DA4421 Range Rover L322 - Td6 - 2002 onwards 175 / 204 130 / 152 390 / 449 > Traceless
DA4433 Defender/Discovery 2 - Td5 - 1999 - 2007 121 / 158 90 / 118 300 / 374 > Peace of mind
Defender - 2.4Tdci - 2007-2011 > Quality product which is legal & safe
DA4436 121 / 153 90 / 114 360 / 424
Note - Will not override speed restrictor > Unobtrusive in interior of vehicle
DA4434 Discovery 3/Range Rover Sport - 2.7 TdV6 - EU3 188 / 220 140 / 164 440 / 519 > No worries off road
DA4435 Discovery 4/Range Rover Sport - 3.0 TdV6 252 / 286 188 / 213 600 / 677 > A good investment

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Tuning Box Tunit Upgrade Chips
DA4437 DA4497 Range Rover P38
Freelander 2 - 2.2 Td4 - 2007 onwards Replacement ECU chip to improve power and economy
Power improvement - before / after on the GEMS engine 4.0 and 4.6 in the Range Rover P38.
Power - HP Power - Kw Torque - Nm Fitting this chip will increase economy by approx 15% and
152 / 177 112 / 130 295 / 325 power by 10%. Once fitted, it helps makes a big difference
to the driveability of the vehicle by improving throttle
response and mid-range pull.
No trade off between fuel economy and
increased power!

DA4507
Tuning box for the Defender - Puma 2.2Tdci
Power increases by 27bhp (20kw)
Torque increases by 71Nm
The 2011 onwards 2.2 Tdci model Defender has new
style piezo injectors and requires specialised tuning
solutions. It is currently not possible to remap the ECU
through the OBD port. This substantial new tuning unit
is designed to plug directly into the wiring loom and
requires no modification to the vehicle. Contained in Tunit Diesel Performance - The Diesel Tunit has been
waterproof housing so can be safely located in the forged from many years of experience to bring a
engine bay.
world class unbeatable range of diesel performance Accelerate technology
solutions. Limitations and restrictions exist which prevent your
Tunit Features - Tunit possesses many advantageous vehicle from achieving optimal performance. The
features not seen in other tuning solutions such as manufacturer’s emissions test is extremely rigorous due
chips, eprom serial reprogramming (flashing) or other to inclusion of all parts of the driving cycle, especially
types of fixed map devices. It is interchangeable warm up and full load operation, which is where problem
between vehicles and able to be upgraded. External emissions are at a maximum. To meet these they
to the ECU or `Plug and play` as it is often called compromise performance and efficiency of the engine -
means no interference with the original manufacturers this chip helps redress that balance.
engine equipment. Its option to adjust power and Off-Roaders in the driving seat
performance provides easy manual adjustment for Your requirements are met through a stable and
the novice or finer electronic alterations for the more predictable idle quality, good engine braking and an
dedicated tuner. engine which has plenty of midrange torque. Perfect idle
Fuel Savings - Tunit has become advantageous in control for hill descents and winching, with no possibility
reducing fuel costs for a variety of applications; not of stalling. Total reliability ensures you never lose control.
just improving performance but now helping with Greater expectations
saving fuel costs. By comparison we know climate conditions and fuel
Installation - The Tunit is normally connected to quality your vehicle experiences and can therefore
original plugs on the vehicle and can either be self- improve efficiency by reducing fuel consumption and
Photo courtesy of Jundio Salvador installed or by a professional mechanic. optimising the engine to get its best performance on full
load, which is less than 10% of the time.
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