What is a DynoJet Track Dyno and why should I use it? A track dyno is the ONLY way to quantitatively determine how much horsepower your snowmobile translates to the track. As with any vehicle, there are power-robbing losses that affect how much engine-horsepower ultimately translates to the wheels (or, in this case, snowmobile track). An engine dynamometer only can provide information on your snowmobile's power output at the crank. However useful this information may be, it does not tell you what really matters - how much of that power actually makes it to your track, aptly dubbed your effective horsepower. A snowmobile's clutching system absorbs much of this available engine power, lost due to belt slippage, heat, and frictional effects. A snowmobile's suspension and track also absorb power, again through frictional and heat losses. Thus, even if your snowmobile's engine outputs an above-average horsepower level, it means absolutely NOTHING out on the lakes or the trails if that horsepower is inefficiently sent to the track and your effective horsepower is subpar. This is where the DynoJet Track Dyno can provide you the information that you need. The DynoJet Track Dyno mounts to the rear idler wheels of your snowmobile (using the existing skidframe or using DynoJet's own skidframe), and through the use of a rolling-resistance drum, measures the acceleration of the snowmobile at the track. The DynoJet then uses this information to calculate the actual numerical Track Horsepower your snowmobile exerts. From this, let XLR8 Performance show you how to reduce (or even eliminate) those inefficiencies that the dyno curve reveals, and increase your effective horsepower. How many dyno sessions does this require? Only one dynamometer session is required for you to discover the hidden power that your snowmobile may not be utilizing. First, XLR8 Performance runs a set of "baseline" dyno pulls to illustrate (and use for comparison) how much and where your snowmobile makes its most power. Should this information be enough for your tastes, XLR8 will provide you with a set of graphical dyno curves, displaying horsepower vs time, speed, or RPM. From here, you can analyze your own data and draw conclusions where & how your snowmobile's efficiency can be improved. Or, allow XLR8 to analyze the data with you, and provide suggestions for improvement to obtain that "lost" HP. Try Before You Buy Using in-stock clutching components, XLR8 allows the customer to virtually pick any clutching combination possible & test it on the Track Dyno instantly. This allows you, as the customer, to find that optimal clutching setup (for both upshifting and backshifting) without having to spend big $$$ on several different weights, helix angles, primary and secondary springs, etc. Using XLR8's components as the "test mules", you can find out what works the best, and THEN make your purchase of your chosen optimal clutching setup. Stock Vs. Modified The Track Dyno also enables you to obtain actual numerical data of a stock (or any current) setup vs. a modified setup on your snowmobile. Bring your aftermarket components such as V-Force Reeds, Twin or Triple Pipes, Clutch Kit, etc., and in one dyno session XLR8 will provide dyno curves showing your sled in an as-stock condition, then incrementally adding each of your performance parts. You then have the first-hand data that shows how much power your snowmobile made BEFORE AND AFTER you added the performance parts. No more guessing about if a performance part lived up to its advertisements, or if those performance parts are adding as much power as you think they are; the Track Dyno will tell you accurately how much HP your snowmobile exerts to the track. Attempting to gauge performance improvements against a friend out in the field is futile, as uncontrollable variables too often cause inaccurate and miselading results. No-one can argue with hard, factual information obtained from a Track Dyno. The data you receive is real, it is accurate, and it is repeatable. Go to XLR8Performance Homepage Return to MCB Performance |
DynoJet Snowmobile Track Dynamometer Services Owners: Bret & Brad Gudme Phone: (810) 326-2601 (810) 305-2922 Email: xcr@iwon.com Hours: By Appointment Only |
DynoJet Pricing First Three (3) Baseline Dyno Tests $100.00 Includes removal of your stock suspension Mounting of your snowmobile to the DynoJet Track Dyno Recording of all data from the at-temperature tests Additional Dyno Tests Charged at $40.00 / hr Includes any clutching, jetting, or part "on-the-fly" changes Unlimited dyno testing & XLR8 services Test as many different setups as you would like to Upon completion, reinstallation of sled's stock suspension |
DynoJet Snowmobile Track Dynamometer Services Have you ever wondered how much power your snowmobile really has? How does
it compare to the manufacturers' claims? How does it compare to other sleds?
The only method to truely answer these questions is with the use of a
snowmobile track dynamometer. XLR8 Performance has teamed with MCB Performance to provide you with this ability to find out exactly what horsepower your snowmobile
really puts to the snow. Using the Dynojet Snowmobile Track Dyno, XLR8
Performance can quickly and accurately provide you with a computer graphical
analysis of your snowmobile's performance. From this data, XLR8 can highlight
and pinpoint power-robbing defincicies in your clutching, suggest opportunities
and methods for improvement, and maximize your snowmobile's available horsepower. |