can be outfitted to suit almost any testing requirements! Whether you need the capabilities of the 2,000 horsepower "Pro" test cell shown above, a precision laboratory "inertia immune" reaction cradle system, or the mobility of an integral engine stand configuration -you have it.
The new modular design allows adding or removing subsystems like thermostatically controlled cooling towers, overhead lighting and wiring boom, relay subsystems, dampened and telescoping driveshafts, CW and CCW starters, electronic load & throttle control, on-board fuel systems and battery, etc. Even your choice of water brake, eddy-current, or AC absorber can be changed after-the-fact, without tossing your entire investment.
In docking station mode, two frame sizes are available. The gasoline system (shown in photo above) is aimed at testing automotive applications ranging from tiny economy car engines to 2,000+ Hp high RPM drag motors. The latter applications typically run our 13" fast response toroidal flow absorber with Siamese rotor. This provides the 10,000+ RPM range required for today's race engines, and even provides extra clearance for their headers.
Each cart has its own adjustable mounts. Quick clamp docking cart latches with stainless steel alignment pins make swapping between multiple engines (and carts) very fast. Several telescoping driveshaft and dampening options allow adapting to numerous engine types. Attention to small details, like hinges on the driveshaft guard, also minimize the time it takes to swap engines.
A larger and much heavier frame version is available for mounting and handling high-torque/low-RPM industrial diesel power plants. Depending on the target engines' torque vs. RPM curve the absorber of choice may be anything from our high power 19" Siamese rotor water brake to fast reacting high torque eddy-current or AC absorption units. Again, the system and the control electronics have the flexibility to allow changing the absorber to better match a specific test need.
For the most precise and fastest transient response torque readings (independent of the effects of the engine's own crank train and flywheel inertia) you can add the reaction cradle option. The cradle allows reading torque directly off the stationary engine block -instead of through the rotating crankshaft assembly. The reaction torque transducer measurements are fast enough to detect individual cylinder firings!
For those readers already owning a DYNOmite engine stand dynamometer -we have a suggestion. Make it the basis for building your own modular test cell. Install quick disconnect couplings (full flow type) in the cooling tower and absorber hoses, add V-band latch clamps to the exhaust pipes, and add the "Pro" on-board fuel and starter system to your engine stand. This will make your own setups go much easier.
In fact, for high volume testing, you should probably consider adding a second engine stand. Then, you only have to swap your absorber unit between stands -after everything else is ready to run!
DYNO-MAX Version 9.36…
Many enhancements are included as part of the 2005 update to DYNO-MAX 2000 "Pro". Some of the features in Version 9.36 are:
One Page Reports -that may include any combination of Run Information fields, Notes, Graph, and/or Data Point list, can be output onto one sheet of paper. The Report Design Editor's support of multiple object reports is great for casual testing, "Dyno Shoot-Outs," or use as a cover page to an elaborate analysis package. (Separate full-page Graph and Data Points lists may still be printed alongside multi-object reports.)
Run Manager -is an explorer style tree-view of saved tests. From it, you can browse for files, double click to open runs, or drag-'n-drop them as Graph overlays -an undo icon makes it easy to trial overlay numerous runs against a baseline test. The Run Manager uses its own "floating" split-screen window, so you can keep it open as you work. You may sort its listing by run name, modified date or created date. Plus, detailed header information is viewable without even opening the run. This drag-'n-drop graph overlay feature has also been added to the Smart Search™ tree-view.
"Smart Tile Graphs™" -intelligently arranges up to six open graphs or graph data point listings, with a single icon click. It will even open a 2nd run's graph, automatically, under appropriate circumstances! If you regularly graph and compare multiple runs, this handy new toolbar button will become one of your favorites.
Histogram Graph Support -is now included as part of the Advanced Data Analysis options (in the "Pro+" version). This is especially useful for examination of on-board data collection to determine the most frequent areas of operation for shock travel and velocity, working RPM range, applied torque etc.
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Free 9.61 EEPROM Upgrade!
DYNOmite-Pro users can upgrade to this version -at no charge! It includes both minor bug fixes and some important enhancements.
(See our DYNOmite Web Support site for more details).
1) This is the first version to support multiple DYNOmite Data Acquisition Boards on a single USB host controller. This means you can have two (or more) DYNOmites, each running at up to 1,000 Hertz. Even laptops with only a single USB port may be able to support over 200 channels of data acquisition!
2) Both the USB 1.1 and USB 2.0 standards are now supported. This means most make and model USB host controllers (and many hubs) will be plug-'n-play compatible. Note: The maximum real-world throughput of many USB hubs may limit the reliability of your data communications. When possible, connect your DYNOmite(s) directly to a dedicated USB host controller using a premium 2.0 Certified USB cable.
3) Additional PPR (pulses per revolution) RPM source selections are available. These choices support applications where fractional revolution RPM updates are desired (e.g. using 60-tooth encoder wheels on larger diameter chassis dyno rollers).
Current DYNOmite-PRO board set owners that have their DYNO-MAX computer connected to the internet should use DYNO-MAX's "Electronics -Display DYNOmite Parameters -Check for Upgrade" button to automatically download and flash update to the 9.61 release -at no charge! If your DYNO-MAX computer is not on-line, contact our technical support department for information about obtaining this upgrade.
Question of the Month...?
“How much power do I loose if my tires slip on the dyno rolls?"
It can be significant and it varies (which is its own problem)!For repeatability, you must not have tire slippage % entering into the equation. The major sources of rear wheel horsepower losses are due to tire to roll slippage and sidewall deformation. Both waste energy as heat transfers into the tires, rolls, and surrounding air.
Deformation is often worsened as operators strap the vehicle down harder, desperately trying to improve traction. Although the extra contact pressure reduces slip the once per revolution flexing of the tire over the roll eats up a good chunk of what was recovered by lowering the slippage -while inflicting hidden damage to the tire!
The solution is larger rolls with deep traction grooves. They provide twice the traction at a fraction of the strap down force!
Customer Spotlight
Watts Performance Plus
...was opened in July,1992 by New Hampshire racer and engine builder -Scott Watts. Operating out of their Route 1, Seabrook, NH facility, Watts has become known as one of New England’s premier engine builders. That’s due in no small part to his racing affiliations with the IHRA, ACT, Pro All Stars, and NASCAR Late Model Series – along with over 300 combined wins for Scott (and his Engines) and numerous championships.
As both a driver and engine builder Scott realizes the importance of both strong and reliable engine combinations. These are characteristics that he has been able to optimize through the use of their DYNOmite 800 engine dynamometer equipped test cell. Scott says that today this dynamometer installation is equipped with the latest version of DYNO-MAX 2000 “Pro” software – allowing him to conduct repeatable real-time testing on every engine he builds. Serious testing of their product is what helps Watt’s Performance Plus create and maintain a reputation on the race circuit for supplying quality engines – that win.
More recently, Watts Performance Plus made the decision to add one of Land & Sea’s new DYNOmite Motorcycle/ATV chassis dynamometers. Now, Scott can offer the same quality race engine building and tuning services for motorcycles (or ATV’s) that his automotive customers have come to expect.
Scott currently uses his engine dynamometer for Research & Development work for oval track, drag race, and marine customers – as well as for break-in of all their standard customer rebuilds. He says that it has become an integral part of his engine development program. With the recent addition of the Motorcycle/ATV dynamometer Scott plans to tap a whole new market, yet one that still compliments their already thriving automotive machine division.
Contact Us
Land & Sea, Inc. PO Box 96North Salem, NH 03073(603) 329-5645
www.land-and-sea.com
sales@land-and-sea.com
or visit your
DYNOmite Users' Forum
forums.land-and-sea.com
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Graph Text Annotations -(see figure above) allows placing user editable comment labels onto individual graph lines. These notes can optionally append a line's peak value and units -automatically.
Graph Logo -allows inserting your company's logo (or other bitmap) anywhere on the screen graphs and printouts. As with Graph Text Annotations, layouts are exclusive to each Graph tab that you define. This allows toggling between say, an in-house diagnostics layout and a publication format, at the click of a button.
Graph Legend -can be used in addition to (or in place of) each line's default Formula "Short Name" label. The legend updates automatically to display each line's color and style. When you are overlaying runs, the legend groups and titles each run's set of lines by name.
Slide-Bar Console Controls -can be user defined for real-time operator input of formula data and D/A output. If you need to manipulate engine temperature, spark advance, etc. from the keyboard during testing -now it's easier to set up than ever.
Smart Record™ End Test -choices now include Run Time and Simulation Distance as ways to automate data collection.
Auto Clipping -of on-board circle track (or road race) data can instantly split an entire race into separate graph "clips" -by lap. This supports examining (or printing) laps individually or as multi-lap overlays. Clipping also works for dyno race simulations.
Other items -new Pressure types on the Units list and minor bug fixes. This release is available in the DYNO-MAX Support area for free download to 9.0 -9.35 licensees under a current support plan.
