DYNOmite Data-Acquisition Computer:

Expandable, surface-mount board system
120-volt 60-Hz, 240-volt 50-Hz, or 12-volt DC
Pro PC-based 28, 56, or 112+ channel capable board sets, require DYNO-MAX software
Lite 3-channel (upgradeable to Pro above)
Up to 1,000 recordings per second (per channel)
Quick-disconnect data harness
Non-volatile set-up memory
Smart-Record™ automated recorder triggering
RS-232 and USB ports – for output to a PC with DYNO-MAX software options

Torque Transducer:

1% of full-scale accuracy – typical
Environmentally sealed S-beam load cell
Semi-automatic calibration of zero offset
Temperature compensated

SAE (contact-patch ratio) Hp Capacity:*

*Power capacity is unlimited, but subject to roll diameter-induced tire deformation (safety) and traction (efficiency) limits. Continuous capacity depends on selected absorber and test speeds. Higher torque transfer requires tie downs.
8½" 2WD = 530 Hp (1000 / 3.8"deform*μ*2wd)
12" 2WD = 700 Hp (1000 / 2.8"deform*μ*2wd)
13" 2WD = 740 Hp (1000 / 2.7"deform*μ*2wd)
20" 2WD = 900 Hp (1000 / 2.2"deform*μ*2wd)
24" 2WD = 1,000 Hp (1000 / 2.0"deform*μ*2wd)
30" 2WD = 1,350 Hp (1000 / 1.5"deform*μ*2wd)
44" 2WD = 1,650 Hp (1000 / 1.2"deform*μ*2wd)
60" 2WD = 2,000 Hp (1000 / 1.0"deform*μ*2wd)
12" 4WD = 1,400 Hp (1000 / 2.8"deform*μ*4wd)
13" 4WD = 1,480 Hp (1000 / 2.7"deform*μ*4wd)
30" 4WD = 2,700 Hp (1000 / 1.5"deform*μ*4wd)
44" 4WD = 3,300 Hp (1000 / 1.2"deform*μ*4wd)
60" 4WD = 4,000 Hp (1000 / 1.0"deform*μ*4wd)
Note: μ = 1.00 (coefficient of friction for typical 24"-diameter rubber tire on grooved steel roll).

Steady-State Power (absorption units):

Actual load capacity depends on selected (AC, eddy-current, or water-brake) absorber and roll speed (including any overdrive ratio) – see online load charts, or call.

Engine and Absorber Tachometers:

0 - 32,000+ RPM display
Quartz-crystal calibrated
RPM pulse type is selectable from ½ to 12 PPR
Clamp-on inductive pickup (standard)
Optional “cigarette lighter” RPM pickup
Optional OBD-II tachometer interface

Dyno Speedometer:

0.0 - 255.0 MPH display
Magnetic RPM/MPH pickup (standard)

MPH Range (tire-deformation limited): **

8½" tandem rolls (speedo tester) = 5 - 120 MPH**
12" tandem rolls (linked) = 7 - 150 MPH**
13" tandem quad rolls (linked) = 7 - 160 MPH**
20" wide roll = 7 - 160 MPH**
24" wide roll or 24" twin rolls = 8 - 180 MPH**
30" wide roll = 10 - 200 MPH**
44" twin rolls = 15 - 225 MPH**
60" twin rolls = 18 - 250 MPH**

Speed Range (tire-deformation limited): **

**Range is subject to tire's speed rating (sr) and roll diameter-induced tire deformation (safety) limits.
8½" tandem rolls (speedo tester) = 5 - 95 MPH (186sr / 3.8"^{^.5}deform)
12" tandem rolls (linked) = 7 - 112 MPH (186sr / 2.8"^{^.5}deform)
13" tandem quad rolls (linked) = 7 - 113 MPH (186sr / 2.7"^{^.5}deform)
20" wide roll = 7 - 125 MPH (186sr / 2.2"^{^.5}deform)
24" wide roll or 24" twin rolls = 8 - 132 MPH (186sr / 2.0"^{^.5}deform)
30" wide roll = 10 - 137 MPH (186sr / 1.5"^{^.5}deform)
44" twin rolls = 15 - 166 MPH (186sr / 1.2"^{^.5}deform)
60" twin rolls = 18 - 186 MPH (186sr / 1.0"^{^.5}deform)

Load Control (absorption units only):

Electronic auto-load control (with road simulation)
Integral drag-race tree, with patent-license options

Absorber (except inertia-only models):

Adjustable load – (bidirectional) with AC, eddy- current, or toroid water-brake absorber options
Dual heavy-duty bearings – Zerk grease fittings

Rolls:

Machined in “traction grooves” for maximum grip and tire life under high-power testing
Medium inertia (to allow absorber simulations)

Roller Frame:

Heavy-duty steel frame, leveling pads or anchors, greaseable bearings, pit-plate or ramp options
Tandem-roll 12" or 13" (with casters and ramps)
Wide-roll 20" (with integral anchoring feet)
Twin-roll 24", 44", or 60" (tie down – high speed)
Wide-roll 24" or 30" (dually model is 96" wide)
AWD 12", 30", or 44" upgrade, 89" - 130" range (or longer) electric wheelbase adjustment

Axle Weight Capacities:

8½" quad roll (speedo tester) = 8,000 lbs (per axle)
12" or 13" tandem roll = 5,000 lbs (per axle)
20" wide roll = 6,000 lbs (per axle)
13" quad or 24" twin roll = 10,000 lbs (per axle)
24" or 30" wide roll = 8,000 lbs (per axle)
44" or 60" twin roll = 10,000 lbs (per axle)

Approximate Dimensions and Weight:

8½" 2WD (speedo tester) tandem roll (less ramps)
    102"W x 30"L x 12"H – 1,000 lbs
12" 2WD tandem roll (with absorber, less ramps)
    121"W x 32"L x 18"H – 4,100 lbs
13" 2WD tandem quad roll (absorber, less ramps)
    133"W x 34"L x 18"H – 3,200 lbs
20" 2WD wide roll (with absorber less ramps)
    120"W x 35"L x 21"H – 3,500 lbs
24" 2WD wide roll (inertia only, less lift or plate)
    104"W x 32"L x 24"H – 3,300 lbs
24" 2WD twin roll (absorber, less lift or plate)
    89"W x 52"L x 25"H – 3,700 lbs
30" 2WD wide roll (inertia only, less lift or plate)
    112"W x 38"L x 30"H – 4,800 lbs
44" 2WD twin roll (absorber, less lift or plate)
    89"W x 54"L x 48"H – 5,500 lbs
60" 2WD twin roll (absorber, less lift or plate)
    112"W x 70"L x 64"H – 6,500 lbs
12" 4WD tandem-roll sets (absorbers, less ramps)
    127"W x 163"L x 14"H – 8,700 lbs
44" 4WD twin-roll sets (two absorbers, less plate)
    91"W x 185"L x 48"H – 13,000 lbs

Control Console and PC Options:

Enclosed (EMI resistant) rolling PC cabinet
Pocket DYNO-MAX - wireless control software
“Pro” Console with PC and 17" LCD display

Data Collection Options:

5-gas analyzer with digital RS232 interface
Air/fuel ratio exhaust gas module (with pump)
Atmospheric “Weather Station”
DYNO-MAX “Pro” software
OBD-II interfaces (RPM, MPH, TPI, etc.)
Oil temperature “dip stick” thermocouples

Other Options:

42" 13,600 CFM test bay cooling fan
Above ground mounting 4-post lift kit
Starter motor and drive kit