Rotary Owners' Club

Hi Richard. I think you've got it spot on. According to the MegaSquirt manual, a rotary "looks" the same to an ECU as a four-cylinder four-stroke, but it does all its rated induction over 1080 degrees of eccentric shaft rotation, not 720 (ie two crankshaft revolutions). As the fuel is calc...

Progress report on my conversion to EFI. I had a lot of problems with plugs fouling and very high fuel consumption. It turns out this was a fundamental fuelling problem and I can perhaps share my experiences with anyone thinking of converting a rotary to EFI. I use a MegaSquirt V4 system, by the way...

Hi - have a look at the "introduction" forum for some interesting responses from Richard Negus et al. I am still fiddling with the system I have set up - the main problem at the moment seems to be slow running but I have got some ideas for that. Speak to you soon, Mike

Thanks, Richard. Good to hear from you and I hope "retirement" is suiting you. I am getting more and more convinced the surging problem is related to the length of the intake ducts. My set up at the moment consists in holding the existing butterflies full open (simply by clamping the opera...

Hi all. I have posted some information about my attempts at converting my Commander to electronic fuel injection on the greetings forum, but it might me more appropriate here. Let me know. Mike

Thanks, Andy. Brilliant reply - I think the MegaSquirt V4 unit (the latest one) I am running has a very fast ECU and the problem with surging feels like over-fuelling (the plugs soot up annoyingly easily). The rotaries have always been problematical on tickover, so I understand - the originals rever...

Hi. I've just joined the forum on Graham's advice and I am very impressed with the contributions. I have converted my Commander to electronic fuel injection and would like to share some experiences with other members. I use Jenvey throttle bodies and MTech (Megasquirt) ECU on fuel injection only (ie...