abraxas
Biker
- Joined
- Oct 10, 2007
- Messages
- 652
- Reaction score
- 5
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- 0
- Location
- South Africa
My 2c ....
The most efficient air to fuel ratio is 14:1. This is primarily for "cleanliness" of exhaust gas, but also relates to performance.
The 02, or lambda sensor, measures the FREE oxygen in the exhaust gas. This then feeds back to the cpu to increase/decrease fuel (to keep the ratio).
Opening the box WILL allow better airflow, but not necessarily improve performance. The lambda sensor will adjust to ensure that no harm is done.
In the pre-06 models (like mine) there is no sensor to auto correct, as such the ratio would be incorrect, without a pcIII remap. The bike would run lean, causing a hotter combustion cycle, wearing the parts over time (not something your buttdyno would tell you).
The airbox is a very specific design, taking airflow, air temp, and noise into account. The whole aim of the airbox (IMHO) is to maintain as steady an environment as possible.
Eanyone notice how much warmer the air intake temperature is, over "normal" ouside? So the first thing that you'll do is cool the intake temp, and hence increase the volume of air.
PS, if the lambda sensor gets dirty, it will not read the oxygen levels correctly, and compensate by adding fuel, to the point of choking the engine.
The most efficient air to fuel ratio is 14:1. This is primarily for "cleanliness" of exhaust gas, but also relates to performance.
The 02, or lambda sensor, measures the FREE oxygen in the exhaust gas. This then feeds back to the cpu to increase/decrease fuel (to keep the ratio).
Opening the box WILL allow better airflow, but not necessarily improve performance. The lambda sensor will adjust to ensure that no harm is done.
In the pre-06 models (like mine) there is no sensor to auto correct, as such the ratio would be incorrect, without a pcIII remap. The bike would run lean, causing a hotter combustion cycle, wearing the parts over time (not something your buttdyno would tell you).
The airbox is a very specific design, taking airflow, air temp, and noise into account. The whole aim of the airbox (IMHO) is to maintain as steady an environment as possible.
Eanyone notice how much warmer the air intake temperature is, over "normal" ouside? So the first thing that you'll do is cool the intake temp, and hence increase the volume of air.
PS, if the lambda sensor gets dirty, it will not read the oxygen levels correctly, and compensate by adding fuel, to the point of choking the engine.