QUOTE(lazyboy666 @ Nov 18 2011, 10:24 AM)
wow package set for mr.55km... i like this. worth every sen!
wei kenny, teach us how to see this graph...me noob
quite hard to understnad actually ..

3 different timing ..
1. WHEN TO split the FUEL
2. TO advance the TIMING or retard the timing of the Intake valve (Mivec)
3. To advance or retard the timing of the exhaust valve (Mivec)
during low RPM .. u want the intake to advance slightly .. so the exhaust going out will produce more vacuum to help pull the fresh air into the combution chamber .. then the timing of the fuel spliting is important .. split too early the fuel does not mix well with the air coming in. split too late the vacuum power is gone and the fuel does not mix well again..
same goes to the exhaust.. you want to retard it slighly during lower rpm to create better torque..
when going high RPM .. u dun want the advance or retard timing to cause blockage.. thus the advance of the intake and the retard of the exhaust is reduce to minimal .. so air can flow in and out smoother ..