Help ..Timing info for 1275cc A series conversion?

Just keep advancing it until light pinking is heard under load then back off a fraction....

as soon as you move away from standard then figures go out the window. for instance 36 degrees of static advance really suit a rover v8 if you are using it on the track, standard is probably about minus 3

keep advancing till it feels right and keep it just before pinking with cheap petrol, then use some good stuff, this way you will be safe if you are away and have to put some supermarket petrol in.

mrcheerful

Try

If you're into re-curving a diz then you'll probably need the services of an expert in rolling road tuning. Got to be easier using a fully programmable ECU than messing around with springs & bobweights?

In message , Phil writes

I agree about the programmable ignition controller. I have my front pulley (1275 type with the big mass damping ring) down at Morspeed in Coalville at the moment having it machined to give a 36-1 tooth outer section to give a signal to feed a Ford EDIS front end and a 'Megasquirt Lite Junior' control unit. It'll be interesting to see how well it works on a Mini.

In message , Chris Morriss writes

Duh!! The ignition controller is a MegaJolt. (I have a Megasquirt but that's for EFI).

In message , David Billington writes

At the moment they're machining the 36 'teeth'. I'll then temporarily put the pulley on the crank and work out exactly where to put the sensor. Once I've got the sensor mounting sorted out I'll grind off one of the teeth at the right point so that the sensor reference point is 90 degrees before TDC (as the EDIS unit requires).

I'm only using it for road use so I doubt (and hope of course!) that the change in balance won't matter too much. Morspeed have a front pulley machined this way on their demonstrator car with a BMW K1100 twin-cam head on it. I'll have a word with Simon at Morspeed when I pick the machined pulley up to see if there's likely to be any balancing worries.