Questions and Answers About Motorcycle Dyno Tuning

What is a dyno tune?
Simply put, a dyno tune is making adjustments to your bikes ignition, fuel and air supply, to achieve the most possible horse power and torque, while maintaining optimal air fuel ratio. To do this we use our state of the art Dyno Jet dynamometer.

What is horsepower and torque and air-fuel ratio?
Horsepower is top speed and torque is what gets us there. Air fuel ratio is how much air and fuel are mixing and entering the combustion chamber. This is how rich or lean the motor is running. Either end of the scale will cost you power, torque, economy, and efficiency. If you get the balance too far out on the lean side, damage can be done to the motor. If you get unbalanced to the rich side, you can foul spark plugs, dilute your oil with gasoline, and generally cause a noticeable reduction in performance.

All motors produced today that are in legal production have to meet Federal EPA requirements and are generally on the lean side of the scale. Changing exhaust systems, mufflers, air filters, carburetors, and sometimes even spark plugs affect the way a motor performs. While making these changes may seem like the thing to do, one can end up with problems if these are not done properly.

How do I know if I need a dyno tune?
For the most part any motor that has had changes made to the air filter system, muffler and/or exhaust headers most likely will need to be tuned for the components added or changed. It makes no difference if your bike is normally aspirated or injected. Both can be dyno tuned.

Performance Tuning Specialists

ModPro Racing Industry have been dyno testing and tuning bikes for over 25 years and were one of the first Dynojet motorcycle dyno centres in the UK. We are an authorised Dynojet Power Commander Tuning Centre and also a Yoshimura Performance Centre. Our dyno room is fully air conditioned for accurate and consistent results.

Dyno Tuning - Feel the Difference

Today's Dynojet dynamometer does so much more than tell horsepower and torque. It can look into your motorcycle and see things like fuel mixture, cam timing, clutch slippage, how loose or tight your drive chain is and whether or not it needs to be replaced, how your sprockets are holding up, whether your cush drive is worn, if your fuel needle needs to be adjusted, if your bike needs a tune-up, a valve adjustment, even if your speedo or your tach are calibrated properly.
All this is only the beginning.

Trading Since

2005