tag:blogger.com,1999:blog-4168720258672520292.post6145132240505463036..comments2022-12-02T10:32:07.329+00:00Comments on Project CBR250RRi: RPM signal issuesmotthomashttp://www.blogger.com/profile/11930265085871789924noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-4168720258672520292.post-67717902405172259362013-07-18T08:01:00.700+01:002013-07-18T08:01:00.700+01:00on a single cylinder you need a cam sensor so the ...on a single cylinder you need a cam sensor so the megasquirt will take the MAP signal lecture only once every two revolutions at the exact same timing so the fluctuation will be almost nill. it just cant work properly if the megasquirt takes a lecture at every revolution on a single because there is juste too much pressure variation between admision and expansion stroke. And with just a crank sensor, it will take the measure at every revolution.Anonymoushttps://www.blogger.com/profile/15645496098112784282noreply@blogger.comtag:blogger.com,1999:blog-4168720258672520292.post-74319714761871339042013-01-28T14:10:35.242+00:002013-01-28T14:10:35.242+00:00Thanks Edgar. It should work with a multicylinder ...Thanks Edgar. It should work with a multicylinder aswel. I may have the issue solved for now though so if I can get away without using a conditioner circuit I will.<br /><br />I know what you mean about the fluctuating MAP. I have it also but probably not as bad as you. Have you tried using a vacuum reservoir to smooth out the pulses? There is also input smoothing lag factors in the Microsquirt V3. Not sure if it is in the Megasquirt modules? It is designed to smooth out the signal so maybe it will work for you. I havent played with it much myself yet.motthomashttps://www.blogger.com/profile/11930265085871789924noreply@blogger.comtag:blogger.com,1999:blog-4168720258672520292.post-82308482306065775942012-09-06T01:35:43.101+01:002012-09-06T01:35:43.101+01:00I agree about using LM1815. I am using one to tap ...I agree about using LM1815. I am using one to tap the pulse generator for Megasquirt. Works like a charm. Mine is a single cylinder though.<br /><br />I still have issues like fluctuating MAP reading which is expected on a single cylinder engine and the tuning software losing connection with the engine running, reads fine with the engine off. Noise? Got any suggestion?Edgar Hhttps://www.blogger.com/profile/12010517690259949875noreply@blogger.comtag:blogger.com,1999:blog-4168720258672520292.post-59326175774098755912012-06-27T16:38:08.893+01:002012-06-27T16:38:08.893+01:00This comment has been removed by the author.Anonymoushttps://www.blogger.com/profile/00844694895349109519noreply@blogger.com