prezes Posted September 1, 2010 Share Posted September 1, 2010 Hmmm I think in mine it's mostly around 3500 - 4000 rpm ;/ Link to comment Share on other sites More sharing options...
prezes Posted September 1, 2010 Share Posted September 1, 2010 Hmmm I think in mine it's mostly around 3500 - 4000 rpm ;/ Link to comment Share on other sites More sharing options...
GB. Posted September 1, 2010 Author Share Posted September 1, 2010 To be honest its probably 2500-3750rpm if I think about it, come on Jal what is it? Link to comment Share on other sites More sharing options...
GB. Posted September 1, 2010 Author Share Posted September 1, 2010 To be honest its probably 2500-3750rpm if I think about it, come on Jal what is it? Link to comment Share on other sites More sharing options...
Moe Posted September 2, 2010 Share Posted September 2, 2010 All B18C4 and B18C1 engines have this flat spot, just looking through the fuel tables for the C4 engine, as the revs increase more fuel is added but for some reason around the 2-2500 rev mark the fuelling is decreased then increased again. There must be a reason for it not sure what though. this happens at partial throttle and wide open throttle. Link to comment Share on other sites More sharing options...
Moe Posted September 2, 2010 Share Posted September 2, 2010 All B18C4 and B18C1 engines have this flat spot, just looking through the fuel tables for the C4 engine, as the revs increase more fuel is added but for some reason around the 2-2500 rev mark the fuelling is decreased then increased again. There must be a reason for it not sure what though. this happens at partial throttle and wide open throttle. Link to comment Share on other sites More sharing options...
GB. Posted September 3, 2010 Author Share Posted September 3, 2010 Chances are its there to pass emission tests, its a real problem in the bike world hence a massive aftermarket trade in fuel altering systems. I imagine the problem worsening with induction kits and open exhausts. I have software on my bike which allows me to alter the fuelling on each cylinder individually at different rpm and throttle positions of the ECM itself but that doesn't seem available in the four wheeled world. Link to comment Share on other sites More sharing options...
GB. Posted September 3, 2010 Author Share Posted September 3, 2010 Chances are its there to pass emission tests, its a real problem in the bike world hence a massive aftermarket trade in fuel altering systems. I imagine the problem worsening with induction kits and open exhausts. I have software on my bike which allows me to alter the fuelling on each cylinder individually at different rpm and throttle positions of the ECM itself but that doesn't seem available in the four wheeled world. Link to comment Share on other sites More sharing options...
poolster Posted September 3, 2010 Share Posted September 3, 2010 fast idle at mot time fits the rev range where it does it.nuff said me thinks Link to comment Share on other sites More sharing options...
poolster Posted September 3, 2010 Share Posted September 3, 2010 fast idle at mot time fits the rev range where it does it.nuff said me thinks Link to comment Share on other sites More sharing options...
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