Hogerwerf 15
4704 RV Roosendaal
The Netherlands

T : + 31 165 521 336

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///Dynostar SR38

Dynostar SR38


The SR38 is our 2WD equivalent of the W4-X. Built with the same philosophy as the W4-X, no compromises. This dyno is built for the most demanding. High power, high speed, superior materials and quality, it’s all there. The 800mm drums guarantee a smooth drive with a maximum grip due to its Tungsten Carbide coating. Equipped with the most powerful eddy current brake available, its brake capacity is a staggering 3800 Nm of torque. With its low profile it is the ideal dyno for extremely lowered cars, down to 60mm ground clearance.

The SR38 is designed using 3D-CAD and FEM analysis to deal with the high power and speed it’s intended for. Laser alignment by SKF, balancing on our own Schenck balancing machine, vibrations are reduced to a minimum assuring very accurate measurement and virtually maintenance free operation. Assembled by hand by a small but very skilled group of professionals, quality is in its DNA!

Because of its height the SR38 must be integrated into the workshop floor.

Standard hardware features:

  • DAS Data Acquisition System
  • Advanced Dyno Station Software package
  • Junction Box
  • Calibration weight
  • Remote controller
  • Instructions and manual
  • CE marking
  • Emergency brake
  • Straps and floor anchors for immobilizing the car

Standard software features:

  • Static power measurement
  • Dynamic power measurement: Roll on, Negative test, All gear, Variable transmission, Fast acceleration, Multiple speed, Acceleration test
  • Speedometer test
  • Weather station
  • Power correction to DIN, EEC and SAE standard
  • Automatic braking after completing a dynamic test
  • Real time display of engine speed, power, traction and vehicle speed in software
  • Simulation of roller and air resistances for simulating situations on the road
  • Automatic calculation of losses in the drive line and calculation of power at crankshaft


Weight: 1665 [kg] 3671 [lbs]
Dimensions (lxwxh): 4,1x1,3x0,9 [m] 160x51x35 [inch]
Power requirements: 230 [V]  
Max. consumed current: 21,5 [A]  
Air requirements: 6 [bar]  
Max. speed: 350 [kmh] 218 [mph]
Drum width: 0,8 [m] 31,5 [inch]
Drum diameter: 0,8 [m] 31,5 [inch]
Number of drums  2  
Min. track: 0,8 [m] 31,5 [inch]
Max. track:  2,4 [m] 94,5 [inch]
Max. vehicle mass: 7000 [kg] 15432 [lbs]
Total inertia: 81,17 [kgm2]  
Equivalent vehicle mass: 507 [kg] 1118 [lbs]
Max. dynamic power: 965 [kW] 1295 [hp]
Max. static power cold: 619 [kW] 830 [hp]
Max. static power continuous: 258 [kW] 346 [hp]
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