Toño_ELC_MFT Posted April 22, 2020 Report Share Posted April 22, 2020 Hello guys I´m a member of the electronics department of a formula student team, and we are thinking of changing the engine this year. We are using a CBR600f4i engine with a link g4+ fury ECU, and we are thinking of changing the engine to a KTM450sf-x. ¿Are this 1cyl engines compatible with the ECU? I don´t have experience with tunning, and I was wondering if anyone could help. Thanks! Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted April 22, 2020 Report Share Posted April 22, 2020 I have run single cylinder engines with the G4+ line of ecus. Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 22, 2020 Report Share Posted April 22, 2020 The first thing to confirm will be the trigger system. What does it have for triggers, what pattern does it have on the crank, does it have a cam sensor or use MAP sync? Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
Toño_ELC_MFT Posted April 23, 2020 Author Report Share Posted April 23, 2020 (edited) 10 hours ago, Adamw said: The first thing to confirm will be the trigger system. What does it have for triggers, what pattern does it have on the crank, does it have a cam sensor or use MAP sync? It has coil for ignition, crank position sensor and MAP sensor in Stock form. I can´t see any cam sensor. Edited April 23, 2020 by SuprVR Media I put coils, in plural, when there is only 1 cyl Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 23, 2020 Report Share Posted April 23, 2020 Do you now how many teeth is on the crank and what pattern it uses? A lot of single cylinder engines use MAP sensor instead of a cam sensor so that may be a problem. Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
Toño_ELC_MFT Posted April 23, 2020 Author Report Share Posted April 23, 2020 17 minutes ago, Adamw said: Do you now how many teeth is on the crank and what pattern it uses? A lot of single cylinder engines use MAP sensor instead of a cam sensor so that may be a problem. For what I have found, around 16-18 teeth and the crank looks like this. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 23, 2020 Report Share Posted April 23, 2020 I think that is just the sprocket for the timing chain by the looks. Trigger is likely on the inside or outside of the flywheel/Alternator. Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
Toño_ELC_MFT Posted April 23, 2020 Author Report Share Posted April 23, 2020 1 hour ago, Adamw said: I think that is just the sprocket for the timing chain by the looks. Trigger is likely on the inside or outside of the flywheel/Alternator. Could it be that it doesn´t use a Trigger wheel, and instead, it uses an ignition pulse generator? I cant find any Trigger wheel in the manual. Instead, I found the ignition pulse generator. Here is the photo of the instalation. Sorry for the lack of knowledge, but it´s my first year. Thanks for the help! Edit- It uses a rotor. in the photo you can see the sprocket of the timming chain, and on top there is a rotor like this. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 25, 2020 Report Share Posted April 25, 2020 These are the trigger teeth on the outside of the flywheel. So we need to know what pattern these are in - there will likely be a number of evenly spaced teeth then either some missing teeth, long teeth or or extra teeth. Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
Toño_ELC_MFT Posted April 25, 2020 Author Report Share Posted April 25, 2020 4 hours ago, Adamw said: These are the trigger teeth on the outside of the flywheel. So we need to know what pattern these are in - there will likely be a number of evenly spaced teeth then either some missing teeth, long teeth or or extra teeth. Okey. We will talk with ktm about that. For what I have search, I could only find this. Thank´s a lot for the understanding. That really helps with our proyect. Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted April 25, 2020 Report Share Posted April 25, 2020 Last one I did we werent as lucky to have the teeth there on the sprocket. We added 24 1/4-20 bolts and machined them square to be teeth. We then added a sensor to the cam cover to pick up the cam lobe as a sync signal. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 26, 2020 Report Share Posted April 26, 2020 If you grind that long tooth completely off it will make it into a 18-1 trigger pattern which is supported. The engine would have to run wasted spark ignition and batch fire injection without a cam sensor. Ideally you would add a cam sensor which will give you sequential and direct spark capability. Toño_ELC_MFT 1 Quote Link to comment Share on other sites More sharing options...
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