Is anyone aware of an 'electronic' vacuum advance? I have seen the MSD Boost Timer Master but this seems more geared to Turbos/Superchargers and is really for retarding.
Setting the context on this is rather long so please bear with me!
Last year I had a problem with getting the timing right on my new motor. Either I could set up a good idle but plenty of detonation on hard acceleration OR no detonation but impossible idle. By this I mean I had to continually blip the throttle to keep the motor running and the revs would gradually fall and engine try to stall, so blip again - no amount of idle speed adjustment seemed to help.
I was using a new Mallory magnetic with mechanical advance only.
I figured I needed more advance on tick-over which disappeared on load - EUREKA - vacuum advance! BUT unfortunately you can't convert this particular Mallory, so I fitted my old Mallory dual point with vac. advance. Problem solved the engine OK but recently (at Santa Pod and since) I find at revs over 5K the engine cuts suddenly. I have MSD6AL set to 6K limit so it should be progressive. I think the dual point is not coping so I'd like to fit my new dizzy again.
I would rather have a controllable electronic adjustment of the timing based on the pressure level of the intake manifold – any ideas??
Setting the context on this is rather long so please bear with me!
Last year I had a problem with getting the timing right on my new motor. Either I could set up a good idle but plenty of detonation on hard acceleration OR no detonation but impossible idle. By this I mean I had to continually blip the throttle to keep the motor running and the revs would gradually fall and engine try to stall, so blip again - no amount of idle speed adjustment seemed to help.
I was using a new Mallory magnetic with mechanical advance only.
I figured I needed more advance on tick-over which disappeared on load - EUREKA - vacuum advance! BUT unfortunately you can't convert this particular Mallory, so I fitted my old Mallory dual point with vac. advance. Problem solved the engine OK but recently (at Santa Pod and since) I find at revs over 5K the engine cuts suddenly. I have MSD6AL set to 6K limit so it should be progressive. I think the dual point is not coping so I'd like to fit my new dizzy again.
I would rather have a controllable electronic adjustment of the timing based on the pressure level of the intake manifold – any ideas??