High Pressure Fuel Pumps
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_hpfps_mid.jpg
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_hpfp_internals_mid.jpg
Sold separately as brand new pumps or rebuilds of the engine’s existing pumps, the APR High Pressure Fuel Pumps address fueling needs and leaves plenty of headroom for safety and further increased power levels. By increasing the pump’s internal capacity, the fueling system is capable of displacing a higher volume of fuel per minute at every RPM. Read more on our APR High Pressure Fuel Pumps product page.
Fueling System
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_fueling_mid.jpg
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_rpv_mid.jpg
To accommodate the large APR Supercharger, modifications are made to the low-pressure fueling system and evap lines. Each fuel line exceeds CARB and EPA ratings and includes a patent-pending GreenShield barrier. The multi-ply, reinforced rubber hoses are designed to protect against today’s modern deteriorating fuels and include a best-in-class working psi of 225.
OEM style spring clamps and crimp clamps are included to ensure a solid connection. The included mounting bracket allows for a clean and solid install of relocated components.
Intake Air Temperature Sensors and Harnesses
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_iat_sensors_mid.jpg
The factory mass airflow sensors include intake air temperature (IAT) probes and are designed to provide the engine control unit (ECU) with air temperature information. Because the R8 is converted from naturally aspirated to forced induction, the sensors must be relocated to ensure proper IAT measurement. The IAT sensors are absolutely critical for safe, reliable and powerful operation and as such, APR provides two OEM sensor and harnesses for placement just past the supercharger’s dual internal air-to-water radiators. The included harnesses allows for simple integration into the OEM wiring harness and comes preinstalled in the supercharger.
The sensors feed correct IAT readings to the ECU, which provides closed loop control over various calibration decisions, such as desired ignition advance. This provides safe operation no matter what the condition. During a cold day, with lower supercharger coolant temperature, the ECU will safely increase engine output mainly through ignition. However, under hot conditions, such as a vehicle seeing plenty of track time, the ECU will compensate for these conditions, lowering output slightly to avoid dangerous premature detonation. These compensations result in only attempting to safely achieve the maximum amount of power capable during any given temperature related scenario.
Engine Coolant Hose
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_coolant_hose_engine_mid.jpg
The APR Supercharger fills the valley between the cylinder heads and as such, the factory coolant hose was redesigned to accommodate the supercharger. The specifically routed hose is made from multi-ply silicon and features a protective cover to provide a shield against abrasion.
Vaccum Lines
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_vacuum_mid.jpg
To accommodate the transition from naturally aspirated operation to forced induction, APR provides new vacuum lines and junctions. Leak proof connections are easily achieved thanks to the included OEM style crimp clamps.
Spark Plugs
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_plugs_mid.jpg
To cope with raised cylinder pressure and temperature, eight NGK Iridium IX spark plugs are included. The plugs operate at a heat range colder than stock, which results in better pre-detonation resistance under extreme conditions. With these spark plugs in, APR’s calibration engineers were able to safely achieve more power, especially in extremely demanding conditions.
Gaskets and Hardware
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_gaskets_mid.jpg
New OEM gaskets and bolts are provided to facilitate a leak proof connection between the cylinder heads and APR Supercharger runners.
Fender Liner
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_fender_liner_mid.jpg
The side blades on the Audi R8 provide an excellent mounting location for further supercharger air-to-water radiators. The APR Supercharger System utilizes a vented R8 V10 fender liner to allow proper airflow through the air-to-water radiator and in doing so, borrows an engineering design element from the V10 platform. The fender liner installs cleanly without any destructive trimming to the factory parts.
Install Manual
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_install_manual_mid.jpg
APR has a worldwide network consisting of many professional shops capable of performing an APR supercharger system install. To accompany APR’s world-class technical support hot line, APR includes a full, printed, step-by-step install manual to make the install process smooth and simple!
Dyno Testing
Horsepower and Torque was measured in APR’s in-house, soundmaster dyno cell, using a dynapack all wheel drive dynamometer. Multiple stock and modified runs were conducted and the SAEJ1349 corrected results were averaged together to represent the differences between a stock and APR Stage III+ R8. Crank power figures were estimated based on Audi’s factory advertised results.
Click through the tabs below to view output using various fuel grades, power measured at all four wheels, estimated at the crank, and the absolute gain over stock.
http://www.goapr.com/includes/img/products/dyno/42l_fsi_v8_r8/r8_42l_fsi_s0_vs_s3+_93_cc.png
Click the links below to see power output at the wheels, estimated at the crank and with different octanes
91 Octane | 93 Octane | 100 Octane - Measured All Wheel Horespower
91 Octane | 93 Octane | 100 Octane - Estimated Crank Horsepower
91 Octane | 93 Octane | 100 Octane - Gain over Stock
APR Stage III+ TVS1740 Supercharger System Calibration Report
Output:
424 HP & 317 FT-LBS of Torque - Stock as Rated by Audi
425 HP & 318 FT-LBS of Torque - Stock as Measured by APR
611 HP & 511 FT-LBS of Torque - APR Stage III+ with 91 AKI or 95 RON fuel
642 HP & 526 FT-LBS of Torque - APR Stage III+ with 93 AKI or 98 RON fuel
689 HP & 550 FT-LBS of Torque - APR Stage III+ with 100 AKI or 104 RON fuel
Max Gains over Stock:
+200 HP @ 5,350 RPM & +200 TQ @ 5,100 RPM - APR Stage III+ with 91 AKI or 95 RON fuel
+220 HP @ 5,600 RPM & +214 TQ @ 4,950 RPM - APR Stage III+ with 93 AKI or 98 RON fuel
+263 HP @ 7,900 RPM & +239 TQ @ 5,900 RPM - APR Stage III+ with 100 AKI or 104 RON fuel
Acceleration Testing
All too often performance upgrades show improvements during a single dyno pull, but lack the ability to show the same performance in real world conditions. Furthermore the dyno may be unable to illustrate the system’s response and other tuning changes designed to make the system instantly react to the drivers input. Through acceleration testing, APR’s engineers were able to improve power delivery during launches, after gear changes and prove the cooling system was up to the task of sheading heat to keep power consistent.
APR’s local certified quarter mile drag strip is a perfect and safe testing ground for high speed, 130+ MPH sprints. Using Car and Driver magazine’s measured results as a benchmark, APR’s Engineers setout to prove the Stage III+ Supercharger System was capable of increasing the R8’s performance substantially.
Car and Driver magazine measured the R8’s sprint from 30-130 MPH in an underwhelming 17 seconds. However, with the addition of the APR’s Stage III+ TVS1740 Supercharger System, the vehicle entered a league of performance often shared by exotic supercars. Using 93 octane fuel the same acceleration test was completed 6.5 seconds faster! Through testing higher octane fuels, and eventually weight reduction and tire changes, the gap grew even larger, ultimately resulting in an astonishing 44% reduction in time.
Many more acceleration tests were performed, including record setting quarter mile passes, proving an APR Stage III+ TVS1740 Supercharger System is the ultimate upgrade for R8!
http://www.goapr.com/includes/img/products/dyno/42l_fsi_v8_r8/r8_42l_fsi_s0_vs_s3+_0-130mph.png
0-60 MPH
4.20 - Stock (Car & Driver Magazine)
3.61 - APR Stage III+ - Full Weight with Street Tires and 93 AKI Fuel
3.34 - APR Stage III+ - Full Weight with Street Tires and 100 AKI Fuel
0-100 MPH
10.60 - Stock (Car & Driver Magazine)
6.91 - APR Stage III+ - Full Weight with Street Tires and 93 AKI Fuel
6.31 - APR Stage III+ - Full Weight with Street Tires and 100 AKI Fuel
60-120 MPH
10.7 - Stock (Car & Driver Magazine)
6.57 - APR Stage III+ - Full Weight with Street Tires and 93 AKI Fuel
6.03 - APR Stage III+ - Full Weight with Street Tires and 100 AKI Fuel
60-130 MPH
14.30 - Stock (Car & Driver Magazine)
8.69 - APR Stage III+ - Full Weight with Street Tires and 93 AKI Fuel
7.88 - APR Stage III+ - Full Weight with Street Tires and 100 AKI Fuel
30-130 MPH
17.00 - Stock (Car & Driver Magazine)
10.49 - APR Stage III+ - Full Weight with Street Tires and 93 AKI Fuel
9.56 - APR Stage III+ - Full Weight with Street Tires and 100 AKI Fuel
Requirements and Recommendations (Each Sold Separately)
APR High Pressure Fuel Pumps
The APR HPFPs expands the 4.2L FSI V8’s direct injection fueling capabilities to the levels required for proper operation with the APR Stage III+ TVS1740 System. Because the pumps are sold in two different forms, they are offered separately from the kit. Entirely new pumps can be purchased, or the vehicle’s existing pumps can be sent to APR for a rebuild at a discounted rate. This product is required.
Transmission
The APR Supercharger System greatly increases torque over the factory output levels and as such, an upgraded clutch may be necessary to transmit power to the ground. APR highly recommends upgrading the factory clutch to one that suits the operator’s intended driving style.
Induction System
The APR Supercharger System was designed using the factory intake system with the included K&N Filters and OEM mass airflow (MAF) sensor housings. An intake port carbon cleaning is necessary to meet advertised power levels.
Exhaust System
The APR Supercharger System was designed for operation with the either the factory exhaust system or a high flow exhaust system.
Motul Fluids and Lubricants
Maintaining the vehicle’s fluids and lubricants is necessary. APR highly recommends Motul’s product range.
Application Guide
Audi R8 4.2L FSI V8 Coupe with 6 Speed Manual Transmission (R-Tronic currently under development)
Part Number T3100054
Price $23,749.99
Motul Oil and Coolant
http://www.goapr.com/includes/img/labels/motul.png
During the install, oil and coolant must be drained and should be replaced to offer superior performance and protection. The APR Supercharger Systems are now complete turnkey solutions, including everything you need down to the oil, coolant and oil filter. During checkout you’ll be given the option between Motul Specific 502.00, 505.00 & 505.01 5W40 or Motul Power 300V engine oil as well as Motul Inugel Optimal Ultra Coolant. The Premium Motul lubricant package is included at a much lower than retail price point and the costs are listed below.
Motul Specific Lubricant Install Package
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_specific.jpg
10 Liters of Motul Specific 505.01, 502.00 & 505.00 SAE 5w40 Oil & 9 Liters of Inugel Optimal Ultra (Concentrated) - Organic
Part Number: MO00015
Price: $125.00
http://www.goapr.com/includes/img/products/stage_3+_r842fsi_300v.jpg
10 Liters of Motul 300V Power 5W40 & 9 Liters of Inugel Optimal Ultra (Concentrated) - Organic
Part Number: MO00016
Price: $165.00
How to Contact APR USA or an APR Dealer
Website: www.goapr.com
Dealer Locator: www.goapr.com/dealer
Phone: +1 (334) 502-5181 or 1 (800) 680-7921
Email: apr@goapr.com
Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801
Facebook: https://www.facebook.com/APRMotorsport
Twitter: https://twitter.com/goapr
Youtube: https://www.youtube.com/user/APRVideos
Flickr: http://www.flickr.com/photos/goapr/
