Join Date: Jul 2012
Location: Portugal-Oporto (pt)
In order to clarify, the flapper is synchronised with the engine. Till 4000-5000 rm the bike works with only half of power (injectors). Above that revs the power is progressively and totally available: all injectors are on and the flapper opens allowing the exit of gases. This is a way to control the torque at low revs.
If we take off the servo, we open the flapper permanentely that increase the torque at low revs (<4000 rm). Something like when we apply a aftermark exhaust. It could be nice because we feel the power and sound earlier, but in low adherence roads it could be a disaster. For instance, is not recomendable for me, cause i use my lady in all weather conditions and i no dot have a throttle control...