Thread: dual map ignition

Originally Posted by Bradtot

Hi Shayne
Based your glowing report I have just ordered the dual advance joker from tinley tech.
Can't wait to see what improvements in power and smoothness I get.
I have been tossing up over many years to get one of these and now it's done.
Brad

Yes, it is remarkable. I made sure I changed nothing else before fitting it so I could verify it was the only change made. I've noticed there is now a flat spot below 1200rpm. This will be because I have "no advance at idle" switched on. So it obviously flags anything below 1200rpm as idling. Obviously this is no biggie I could always just flip the dip switch so it always has advance.

After I've thrown some new plugs and leads into it, I'll try adding in more advance and see how it likes it (it will probably depend a lot on the quality of LPG how much advance can be ran).

seeya,
Shane L.

Mine was flat as a tack above 3200rpm on LPG before fitting the processor. I think LPG require a lot more advance at low revs, but less than petrol at high revs. So if you still have your static timing considerably advanced, you may find it flat at higher revs. Try resetting the static advance back to ~ 8degrees.

You see if you already have lots of advance in there, and the processor goes and adds more in, you may kill the top end. I'm assuming AEB know what they are doing and have added the advance as a curve. ie: it'll not add the full advance settings at higher revs. Mines still set to 9degrees from memory. I'm so happy with the way in goes on LPG I haven't got around to messing with it ( Getting it running on petrol, even remotely as well as it does on gas is a higher priority).

Mine hammers on LPG. I had a fellow AULRO member call around on sunday a lend me a MAF sensor to try. So mine now runs ok on petrol below 3000rpm ... but dies in the arse still at higher revs on petrol (at least it runs fine now for normal driving on petrol). I'm thinking I have either a blocked fuel filter or weak pump. So there isn't enough fueling for wide open throttle or high revs on petrol.

seeya
Shane L.