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4WD BPA-4R HP Linked

The HP series is Bapro’s highest performance chassis dynamometer. Four 400 mm diameter rollers, all connected on each axis, guarantee maximum repeatability and accuracy. With a huge tubular frame made of high-strength steel, this high-performance series suits all needs: testing, R&D, motorsports, tuning and chip tuning. BPA-4R High Performance is suitable for all kinds of power and torque levels. Rigid shaft connection: realized by means of bevel gears and cardan shaft. The front-rear linkage system can be completely disengaged with a button on the remote control. Disengagement disconnects both transmissions, then the cardan shaft stops completely (i.e. the linked test stand is transformed into a Bapro BPA-4R HP synchronized test stand, so no parts rotate when not needed).

$105 076.32

The purchase process of our dynamometers is done with a 30% deposit for manufacturing. After 8 weeks, with the dynamometer ready to ship, the remaining 70% will be paid.

Shipping costs will vary depending on the model, weight, country and city of destination, please contact our team to know the amount of shipping costs to your workshop.

4WD BPA-4R HP Linked
Mechanical characteristics:
  • Roller diameter: 400 mm
  • Roller width: 700 mm
  • Balance quality grade G 2.5
  • All mechanics are laser aligned.
  • Overall dimensions mm: 4360 x 3470 x 460, exactly the same as the BPA-4R HP model.
  • Maximum axle weight: 2,500 kg
  • Direct mechanical linkage between front and rear axles, which can be fully deactivated by software.
  • Oversized connection components to guarantee long life over time.

Performances:

  • Maximum speed with activated link 250 km/h
  • Maximum speed with deactivated link 360 km/h
  • Maximum Absorbable Power 1,300 HP (Endurance Tests)
  • Maximum measurable power 2,000 HP (Sweep power tests)
  • Maximum tensile force 16,000 N

Power supplies:

  • Voltage 3/N/PE 400 VAC
  • Frequency 50 Hz
  • Amperage 16 A
  • Compressed air 6 bar

Advantages:

  • Shorter repair time (fast and accurate diagnosis)
  • Effective use of the instruments already present in the workshop (diagnostic equipment, gas analyzer).
  • Avoid any risk arising from road tests (traffic, accidents, fines).
  • Certification of results (performance improvement)
  • Improved accessory sales through performance verification (exhaust systems, efi controller, etc.)
  • Improving the sale of used vehicles through engine condition certification
  • Review of the vehicle before the second-hand trade.
  • Rental for tests and technical controls.

Measurement programs:

  • Transmission check (clutch slippage)
  • Power step test
  • Power sweep test
  • Cooling system overhaul (radiator, fan sensor, thermostatic valve)
  • Diagnosis by gas analyzer under load.
  • Constant speed vehicle test.
  • Constant force vehicle test.
  • Constant load vehicle test.
  • Road simulation (slope, drag resistance, weight)
  • Constant RPM vehicle test
  • Durability testing
  • Engine mapping at all RPMs
  • Diagnostics by scantool during road simulation.
Constructive characteristics:
  • 2 eddy current brakes; 8 rollers paired with HTD belts, knurled over the entire width and finished by cut knurling
  • 2 bevel gearboxes
  • 1 cardan shaft with extension for adaptation to the vehicle’s wheelbase
  • Infrared remote control test bench management directly from the vehicle cab
  • Lambda input for connection of the vehicle’s lambda sensor or an external controller
  • Input boost pressure 0÷2.5 bar relative pressure ± 0.035 bar error
  • Fully functional management software; Pneumatic vehicle lift, with integrated roller locking system
  • Electrical adjustment of the vehicle’s wheelbase.
Optional features:
  • Double mobile ventilation system on wheels, nominal power 6 kW, flow 44,000 m3/h
  • Wheeled mobile individual ventilation system, rated power 3 kW, flow 22,000 m3/h
  • Lambda Kit: 5-wire broadband lambda sensor and controller
  • Wide aluminum loading ramps. Necessary when the test stand is installed on the floor.
  • Computer cart constructed of durable, heavy-duty steel. Pro: large, mobile and sturdy work surface.
  • Proportional control of the ventilation speed by adjusting the fan speed according to the speed of the rollers.
  • Roller covers protect the rollers when the dynamometer is not running.
  • Personal computer and display
  • Safety equipment: Safety side barriers with logo panels, Ratchet anchor straps, High-attenuation earmuffs
  • OBDII parameter reading and DTC clearing without the need for additional hardware and dedicated interfaces.

Comparison between our dynamometers:

BPA-2R HP BPA-4R HP BPT-2R BPA-2R S BPA-4R S
Performance
Maximum speed 360 km/h 360 km/h 200 km/h 250 km/h 250 km/h
Maximum absorbable power 650 HP 1300 HP 400 HP – –
Maximum measurable power 1000 HP 2000 HP 900 HP 400 HP 800 HP
Maximum tensile strength 8000 N 16000 N 16000 N – –
Mechanical characteristics:
Roller diameter 400 mm 400 mm 400 mm 240 mm 240 mm
Roller width 700 mm 700 mm 700 mm 660 mm 660 mm
Roller balancing G 2.5 G 2.5 G 2.5 G 2.5 G 2.5
Equivalent in inertia base 450 Kg 900 Kg 550 Kg 240 Kg 480 Kg
Dimensions 3470×1135 mm 4360×3470 mm 3470×5300 mm 3070×870×310 mm 4160×3130 mm
Platform height 410 mm 460 mm 640 mm 360 mm 360 mm
Weight 2500 kg 2500 kg – 2000 kg 2000 kg
Voltage 400 V 50 Hz 3/N/PE 400 V 50 Hz 3/N/PE 400 V 50 Hz 3/N/PE 220 V 50 Hz 1/N/PE 220 V 50 Hz 1/N/PE

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  • Tuners love
  • Bapro

"Perfect measurement and testing. No manipulation, all power measurable and available. The best dynamometer on the market, hands down."

Daniel Morales
Daniel Morales