Dyno FAQ

Dynamometer frequently asked questions:


Q: I have heard that the dyno will wreck my tires, is that true?

A: The dyno does have a knurled (cross hatched) drum so the bike can transfer the power to the dyno properly for an accurate reading but it will generally cause no damage to the tire but some negligible wear.


Q: Can my bikes engine blow up on the dyno?

A: Short answer, yes it can. It is always a risk of running an engine to its max, but don't let this scare you! Long answer is that the possibility is always there but most of the time is a non-issue. We do a lot of pre-run checks to prevent this but the overall health of the motor plays a huge factor. If the engine is in good condition, the odds are very low.


Q: How much does a dyno tune cost?

A: Dyno tune costs vary...a lot. Best answer here is to give us a call and find out the details on your bike. Providing us with information like, street or track, stock or engine work done, air filter, fuel used, type of tuner and what type of exhaust are just some of the basics that will help us provide you a quote as to what it will take to make sure your bike is running at its best.


Q: Can I expect to see an increase in power if I put my bike on the dyno?

A: Typically, yes. Sometimes you may not see an increase in peak power but majority of the time you still do. The main gains are usually in the mid range (where you spend most of your time riding)  and also an improvement in fuel economy and throttle response.


Q: Can I just buy a Power Commander, download a map and call it tuned? Why pay to have it tuned on a dyno?

A: You can do this, but we put bikes on the dyno all the time that have downloaded map "for your bike and mods" and often times are very far off! Every bike breathes differently and no two bikes are the same. We use the dyno to not only tune the bike but to prove that the air/fuel is where we want it for safe power.


Q: Do I need a dyno tune with an Auto-Tune setup?

A: Probably the single most asked question we get regarding dyno tuning. Longer answer but hang in there for it.

We still recommend having the bike professionally tuned because the auto tune will simply maintain a number that you tell it. Without a dyno you don't know if the bike makes better power at 13.2:1 or at 12.8:1 air/fuel ratio. There could be a couple horsepower difference there that you won't know if you are just tuning on the street. You will typically see more horsepower gains with putting the bike on the dyno because you can see the cause and effect of each fuel change made. Auto-tune also does not take into account any timing changes made. Auto tuners can only make changes based on air/fuel ratio, not based on horsepower gains/losses. The auto tuner has no way of knowing if that particular air/fuel ratio you picked makes any more or less power. The ONLY way to see horsepower gains/losses is to measure it with a dynamometer.


Q: Can you work with other tuners besides Power Commander?

A: While Power Commander is one of the most well known tuners out there, we can tune other brands and even flash tunes.

We tune many other brands and types of tuners such as:

  • Power Commander/ Secondary Fuel Module/ Ignition module/ Quick-Shifter
  • Power Vision (Harley Davidson)
  • Bazzaz/ Quick-Shifter
  • Flash Tune ECU/ ECU based quick-shifter
  • Woolich Racing/ ECU based quick-shifter
  • Screamin' Eagle Pro Street Tuner (Harley Davidson)
  • Vance and Hines
  • Two Brothers
  • Cobra Tuners
  • Many others!


Q: You said that the dyno can be used for diagnostics, how so?

A: We have mentioned that the dyno can be used for diagnostics. The dyno has what is called and eddy brake. It allows us to put a real road simulated load on the bike so we can diagnose an "at speed" problem as if we were going down the road at 50 MPH or 150 MPH (Track bikes of course) all while staying in place using our other diagnostic tools on the bike such as a multi-meter or oscilloscope.


Q: Can I put my bike on the dyno just to see where its at and not pay for a full tune?

A: Yes, we call this a baseline. We do this to every bike before we tune it so that we have a benchmark of where the bike was before we make modifications. It is always a good idea to know where it was so when the tune and modifications are done you can compare/contrast. We do charge a baseline fee, this mainly covers the time to hook the bike up to the dyno and all the engine safety checks that we require before doing any runs. If you decide to tune the bike after you see the results from your baseline, we include this in the tuning price and do not charge this on top.