The ECU’s internal settings or parameters are edited so that the AFR’s are changed to bring them closer to the ideal 14.7:1. And usually aimed for anywhere between 12.8 - 13.1 at Wide Open Throttle (WOT) as this provides a safety margin. ECU remapping can achieve this without hacking into the bikes wiring or having additional components strewn throughout the bike by altering the existing factory maps.
Timing tables or maps can also be edited. Altering (advancing) the bikes timing is where more power can be safely gained over border line AFR’s. Fuel controllers cannot alter a bikes timing.Factories sometimes install timing retards in the first three gears of their bikes to lessen the power hit. People sometimes fit Timing Retard Eliminators (TRE’s) to combat this, again more wiring, modifications and components to install. When an ECU is remapped, these retards are simply removed and you’re good to go without the need of a TRE.
There are many settings and limits which can be changed or removed when an ECU is remapped. Some of which are listed below:
Our ECU tuning includes developing the tune both on the track and on the dyno in every conceivable state of modification and develop tunes for each of these, for example there will be an optimized tune to suit an R1 in stock trim, then another tune developed for the bike with a slip on, then another with a full system and so on. So the end user will get a tune pretty much customized for their bike if they tell exactly what they have done. And there is always a factor of safety built into these tune files to ensure reliability.
We develop our state-of-the-art Remaps not only for maximum power increase but we also significantly smooth out the power/torque curves making the bike more consistent feeling. This helps a ton with the jerky on/off throttle that is notorious in most modern sports bikes. It helps eliminate upsetting the chassis during mid corner throttle corrections, while also assisting in corner entry and exit. We also work on the deceleration maps which considerably help corner entry. It reduces the amount of engine braking that comes on when decelerating for a corner.
On most of today’s modern fuel injected sport bikes, the factory shuts the fuel injectors off immediately when the rider lets off of the throttle. They do this, to lower emissions on the vehicle and justify this by saying, fuel is only needed to accelerate. However when the fuel injectors are shut off and stop delivering fuel in such an abrupt method the results are normally not very good on ride-ability.
2 of the main problems that result from this are (1) The bike will have a very choppy on/off throttle control which not only makes for a “jerky” feeling under normal riding conditions but will also significantly upset the chassis during corner entry, corner corrections, and corner exits. What we at UD MOTOR X take the time to improve and adjust these deceleration maps that slowly and consistently ramp the fuel down as you let of the throttle making for a smooth and predictable deceleration and/or on/off throttle control. The deceleration can improve track times as much if not more than a quality fuel map. High speed corner entry becomes very smooth and less violent helping the suspension geometry work for the rider instead of against, mid corner throttle corrections are now very linear with reduced ON/OFF throttle jerk, and corner exit is consistent because the fuel is down being increased and decreased in a very linear and cohesive manner.
Please have a look at the LINK section on your left where we have explained the difference between our REMAP vs FUEL CONTROLLERS like power commander, bazzaz etc.