request a lesson on engine timing Options

[type47]

I'd like to know on what parameters does the timing of an engine depend: induction? cam? I am resurrecting a 2L with a carb cam and installing a CIS basic system. We started the engine at the ECC in Oct and am progressing very slowly. I think the engine has an 009 dizzy (engine is still at ECC site so can't check now); at least it has a non-vacuum advance dizzy. I have a 2L D-Jet dizzy ready to install and that will probably be one of the next steps. When we started the engine, it did not sound smooth running but it started and that was the intent at the time,

http://www.youtube.com/watch?v=gRLyDnp7G_0#t=15

but there could be other things that caused that. My question is really to what specs do I time the engine; 27 degrees @ 3500 rpm like a D-Jet?

[injunmort]

euro, that is how indian and dusenberg did it. advance, under load until it pings and retard a 1/4 turn. very much like a mag set up. after changing dist in my chevy truck, timing marks were irrelevant, advance the dist til it ran smooth then drive it under load und backed off timing until it stopped pinging under load.

[gothspeed]

euro, that is how indian and dusenberg did it. advance, under load until it pings and retard a 1/4 turn. very much like a mag set up. after changing dist in my chevy truck, timing marks were irrelevant, advance the dist til it ran smooth then drive it under load und backed off timing until it stopped pinging under load.

That method served me well in my early days, before knock sensors and non adjustable EFI timing came along. Also as a teenager, when I did not have enough money to own a timing light. (IMG:style_emoticons/default/unsure.gif)

This worked well as a fine tuning method also, as the resultant setting will be optimized for whatever elevation one finds oneself in. Although I only retarded a little bit below the 'ping' zone. (IMG:style_emoticons/default/smile.gif)