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View Full Version : APR Presents the A8 / A8L 4.0 TFSI ECU Upgrade!



Arin@APR
01-03-2014, 07:30 AM
http://www.goapr.com/news/wp-content/uploads/2014/01/A8-release-pic.png (http://www.goapr.com/products/ecu_upgrade_40tfsi_a8.html)

Product Page (http://www.goapr.com/products/ecu_upgrade_40tfsi_a8.html)

APR is pleased to present the ultimate ECU Upgrade for the Audi A8 & A8L 4.0 TFSI V8!

After months of long nights and many hours of testing, developing and more testing, we’re pleased to offer you an ECU recalibration that is second to none. APR’s extensive research and development provides you with a powerful ECU upgrade with no loss of drivability or reliability. Expect faster acceleration, improved throttle response and more power across the entire power band.

APR’s 4.0 TFSI V8 ECU Upgrade is an expertly recalibrated engine control strategy that primarily remaps the engine's operating parameters, within the factory ECU, to provide smooth and reliable power as if intended by the OEM. APR’s ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. Available in octane-specific variations, APR’s calibrations allow you to take advantage of fuel quality available in your area. APR’s patented EMCS functionality puts the control of your engine’s operation at your fingertips and allows for additional features and options to be installed to your OEM ECU.

APR Stage I ECU Upgrade

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APR's ECU Upgrade flashes to the OEM ECU.

The APR Stage I ECU Upgrade gives you higher peak numbers of 545 HP / 629 FT-LBS on 93 (R+M)/2 octane and up to 578 HP / 679 FT-LBS on 100 (R+M)/2 octane race fuel. As much as +127 HP and +175 FT-LBS of torque are available through the power band! APR’s ECU Upgrade is the best power per dollar modification for the new 4.0 TFSI V8 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory-like smoothness and drivability, APR’s ECU upgrade will fill the void in an otherwise excellent car.

Acceleration Enhancements:
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Beyond power and torque enhancements, APR’s Calibration Engineers were able to increase the acceleration rate of the A8 & A8L through other calibrations changes. Ignition delay is reduced resulting in a more responsive pedal without altering overall throttle sensitivity. Furthermore, drivability was greatly improved by reducing the throttle lag commonly noticed at slow speeds and while reapplying throttle after decelerating.

Increased Fuel Economy:
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APR’s Calibration Engineers paid close attention to several parameters directly related to fuel economy, especially while cruising at highway speeds. Depending on your driving style and fuel quality, you may see better miles per gallon!

Speed Limiter:
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APR’s ECU upgrade increases the vehicle's top speed limiter for blistering sprints around the track or across the Autobahn without the speed limiter shutting down your fun!

Left Foot Braking:
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APR's Left Foot Braking feature allows more control over the vehicle’s throttle. The factory equipped A8 & A8L’s throttle input is disabled while pressing the accelerator and brake at the same time. Left Foot Braking, a common motorsport driving technique, allows the driver complete control over the vehicle’s throttle and braking system, which may give the A8 & A8L the edge it needs at the track. As is with all features APR adds to the ECU, this feature may be removed upon request.

Dyno Results

http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_93_cc.png

More Dyno Results:
APR Stage 1 91 Octane - Crank Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_91_cc.png) | All Wheel Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_91_cw.png) | Gain Over Stock (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_91_gain.png)
APR Stage 1 93 Octane - Crank Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_93_cc.png) | All Wheel Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_93_cw.png) | Gain Over Stock (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_93_gain.png)
APR Stage 1 100 Octane - Crank Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_100_cc.png) | All Wheel Figures (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_100_cw.png) | Gain Over Stock (http://www.goapr.com/includes/img/products/dyno/40tfsi_d4_a8/40tfsi_d4_a8_s0_vs_s1_100_gain.png)

APR Stage I ECU Upgrade Calibration Report

Stock:
420-435 HP & 444 FT-LBS of Torque - As reported by Audi
456 HP & 506 FT-LBS of Torque - As measured by APR

APR Stage I ECU Upgrade:
530 HP & 586 FT-LBS of Torque +75 HP @ 6,000 RPM & +88 FT-LBS of Torque at 3,300 RPM - 91 Octane
545 HP & 629 FT-LBS of Torque +90 HP @ 5,250 RPM & +129 FT-LBS of Torque at 3,200 RPM - 93 Octane
578 HP & 679 FT-LBS of Torque +127 HP @ 4,900 RPM & +175 FT-LBS of Torque at 3,050 RPM - 100 Octane

Acceleration Testing - Stock vs APR Stage 1 93 Octane

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http://www.goapr.com/news/wp-content/uploads/2014/01/Screen-Shot-2014-01-03-at-9.21.37-AM.png


http://www.youtube.com/watch?v=GtXL3ei7SQU

APR EMCS Programs and Features

APR’s patented EMCS, Enhanced Modular Chipping System, brings selectable programs and features to your factory ECU, all without the need to purchase external hardware. Other companies have attempted to imitate EMCS with clumsy external switching devices that only replace or multiply portions of a “base” calibration. However, EMCS has the ability to completely rewrite the entire operating map data, giving each map a complete set of calibration changes. APR’s EMCS features and programs modes are activated via your OEM cruise control buttons. Your cruise control will continue to function as normal.

Program Switching:
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Program switching allows the user to cycle through up to four different engine calibrations and operating modes all without the need for external hardware.

Stock Mode:
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By selecting stock mode, the ECU calibration is reset to the factory calibration. The engine will run exactly as it did before purchasing APR software.

APR Performance Modes:
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APR's octane-specific calibrations are available for various premium and race fuels around the world. Each performance mode is a completely new calibration, altered specifically for the characteristics of the fuel quality selected.

Valet Mode:
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APR's Valet Mode protects your vehicle from becoming an expensive toy for unauthorized individuals. By enabling Valet Mode, the vehicle's performance is extremely limited. Launch control is uneventful, the vehicles top speed is limited to roughly 40 MPH and the engine's redline is reduced to nearly 5,000 RPM!

Fault Code Erase:
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Fault code erase allows the user to erase and reset engine related trouble codes and ECU adaptation data without using a specialty tool.

Security Lockout:
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Security lockout prevents unauthorized individuals from using APR's EMCS functionality. When enabled, APR's EMCS features will appear completely invisible until a user specified 2 to 4-digit security code is entered.

Anti-Theft:
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When activated, Anti-Theft prevents the engine from starting even if the factory key is used. The vehicle will be completely immobilized until a user specified 2 to 4-digit security code is entered.

APR Mobile

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APR Mobile is a simple yet powerful tool designed to enhance the APR tuning experience.


http://www.youtube.com/watch?v=2gAxcDFm8rw

APR Mobile installs on smart phones, tablets and other devices and provides a wireless connection to the vehicle’s engine control unit or ECU. Once connected, the device can be used to access APR’s EMCS program switching features, read and clear fault codes and data log the ECU at high data rates not found on other commercially available tools. The app can also be used to access APR’s latest news articles, locate dealers in APR’s network and review previously saved data logging sessions.

To learn more about APR Mobile, please visit our product page (http://www.goapr.com/products/mobile.html).

The APR Development Difference

APR ECU Explorer:
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APR’s proprietary ECU Explorer gives APR’s Calibration Engineers unparalleled access to the vehicle’s entire engine management system. Typical commercially available data logging tools, used by most tuners, only allow logging up to 12 engine-operating variables at extremely low data rates. These tools are also limited to a small, specific list of variables. APR’s ECU Explorer is capable of logging every variable found within the ECU. It’s capable of logging well over 100 variables at once with data rates as high as 100 samples per second. Synchronous data logging is available for fine-tuning.

APR ECU Composer with APR Live Tuning:
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APR’s proprietary ECU Composer is used for altering the engine management system. With full access to every table, map and variable within the ECU, APR’s Calibration Engineers are not limited to a handful of maps as is common for most tuning companies. ECU Composer takes calibration to a new level on the 4.0T with APR's Live Tuning. APR’s Calibration Engineers can test calibration changes with a single click of a button to instantly monitor the changes, rather than spending several minutes shutting down the vehicle to reflash the ECU. This allows a level of fine-tuning unmatched in the market.

APR ECU Assembly:
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APR’s Electrical Engineers have the ability to alter the code structure of the ECU to add features not available from the factory. Through code levels changes, APR's Engineers are able to add features designed to protect the gearbox during launch control. Other changes allow higher torque limit than those achievable through only modifying calibration data or using piggyback devices as is the case for many tuners. On the highly modified end, this allows APR to make Stage III Turbo Upgrades operate as if intended by the OEM. For most 4.0 TFSI owners, the advantage of this ability is the addition of APR’s patented EMCS Functions. EMCS puts the control of the engine’s operation at your fingertips and allows for additional features and options to be installed to your ECU.


Application Guide

Audi D4 A8 4.0 TFSI
Audi D4 A8L 4.0 TFSI

Fully Loaded ECU (Includes 4 programs and all EMCS features)

$1,499.00

How to Purchase

Locate an APR Dealer:
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Use the APR Dealer Locater Tool (http://www.goapr.com/dealer/) to find an APR Dealer (http://www.goapr.com/dealer/) near you. The APR Dealer (http://www.goapr.com/dealer/) should have the ability to upgrade your ECU while you wait!

Depending on ECU type, some APR Dealers (http://www.goapr.com/dealer/) may not possess the necessary equipment to support on site flashing. In this case, please contact APR for further assistance.

Security, Warranty and Money Back Guarantee

All APR ECU Upgrades are fully encrypted to prevent theft of our valuable and proprietary coding information by lesser companies.

30 Day Money Back Guarantee:
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All APR ECU Upgrades include a 30-day money back guarantee with no questions asked. If for any reason you are dissatisfied with the APR ECU Upgrade, return to your place of purchase for a full refund, provided you are within the 30 day period from the time of your initial purchase. Labor or shipping charges are not included in the guarantee and are at the discretion of the place of install.

Limited Lifetime Warranty:
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All APR ECU Upgrades include a limited lifetime warranty against defects in the software, and to provide free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty and are at the discretion of the place of install.