Thunder Road Dyno Tuning Information


Dyno Tuning gives you more horse power, better fuel economy, better performance, longer engine life. and better handling.

    Dyno Tuning is not new to the motor vehicle industry it has been around for years, now Dyno Tuning has become more important with the introduction of EFI. A dyno is a very expensive tool used to tune motorized vehicles including motorcycles. Dyno's consist of a large heavy drum being turned by the vehicles drive wheels. Electronic equipment is attached to the drum to take readings and compute horse power and torque, at the same time the vehicle is attached to a separate computer that is reading information as well as the exhaust gases to give information to the tuning technician about the vehicle.  Once the technician has this information they can make the right adjustments to the onboard computer thru a tuner*, or on a piggy-back tuner*/computer to deliver the proper amount of fuel to the engine.

   Dyno tuning is not just for motorcycles with electronic fuel injection. Dyno tuning is for every motorcycle that the rider wants to perform like new, or better than new when installing performances parts, or when replacing old parts.

    Carburetor equipped motorcycles use the air being sucked into the engine to draw in fuel, as long as the jets are set for that motorcycle by engine displacement, vehicle weight, tire size, ignition, air cleaner, altitude and exhaust your fairly close to a good tune after you set the timing.  Once you modify any part of the equation you need to have your motorcycle tuned.

    Electronic Fuel Injection motorcycles use an onboard computer to control injectors for the proper amount of fuel and timing.  The computer gets its information from sensors on the engine. in the manifold, and out side the engine.  These sensors give voltage readings to the computer. They work just fine but as the bike gets older, new parts are added, riding condition change, they can start sending different values to the computer, the sensors aren't bad enough to show a trouble code but enough to make your bike receive more or less fuel. As the EFI engine wears, your MAP, other sensors and auto tuners** will help adjust for these problem a little, but your motorcycle still needs to be tuned so it has a good base map to start with.

    A computer can be flashed by the dealer but any other adjustments must be made with a tuner*. You have a few choices on tuners*, they can be offered by the motorcycle manufacturer or by after market manufacturers. You can buy tuners* you tune yourself which give you three adjustments, you have an EFI motorcycle and are adjusting it like a carburetor equipped motorcycle.  Some type tuners* give you the option to do a full tune yourself, so if you want to have fun you can, just know what you are getting in to.  An EFI motorcycle has hundreds of adjustments and quite a few have adjustments for all cylinders as well as some tuners* you can also fine tune your timing. So why tune it like a motorcycle with a carburetor?

*A tuner is a device used to communicate with your on board computer it is like a translator so a PC can talk to the manufacturers computer.

**An auto tuner is attached to your O2 sensors as well as your motorcycles computer and will make adjustments while you drive, but they still need a good base map to start  auto tuning adjustments.

Come visit us at THUNDER ROAD for more information about what we can do for your motorcycle.

Thunder Road is a great place to have your motorcycle repaired!

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