240260280z Posted November 7, 2014 Share #1 Posted November 7, 2014 Install a lever next to the choke and wire it to the vacuum advance connection inside the distributor (remove the vacuum advance canister). The next step is to adjust the cable so that it swings the full excursion of the advance. The final step is to set the nominal advance with the lever in the middle. In theory this will allow you to set the timing in the middle then push it to dial up more advance for cruising on a highway and pull it to reduce advance for starting the car. I was trying to come up with a way to increase fuel efficiency then this eureka moment fell upon me . I think I hear Lazeum smiling You could also make the lever into an ejection seat activator. Link to comment Share on other sites More sharing options...
jfa.series1 Posted November 7, 2014 Share #2 Posted November 7, 2014 I hope the eureka moment didn't hurt too bad! Didn't the old Model T's and others have a lever on the steering column for this purpose? Link to comment Share on other sites More sharing options...
zKars Posted November 7, 2014 Share #3 Posted November 7, 2014 Advance is something that gets applied/removed with varying load conditions. I'd like to play with it too to see what I could achieve, but in general, I'll let the vacuum do the advancing. Link to comment Share on other sites More sharing options...
240260280z Posted November 7, 2014 Author Share #4 Posted November 7, 2014 Well the problem for nice triple set ups comes with disabling the vac advance however 20 degrees at cold start is tough on the motor... pulling the choke lever and "retard" lever will make for better starting. Link to comment Share on other sites More sharing options...
Captain Obvious Posted November 8, 2014 Share #5 Posted November 8, 2014 Could you use one of the dual point distributors and use the retarded contact set during starting? You could wire a relay coil in parallel with the CHOKE lamp that shorts the retarded points around the normal ones? You wouldn't have graduated control, but you could switch to retarded with a cold motor that needed choke. Just thinking out loud... I don't even have a choke slot. Although if I DID have one, I'd use it for a lever on 5K pot in series with my CTS and use that as an electronic "choke". I'd even light up the bulb and everything. 2 Link to comment Share on other sites More sharing options...
240260280z Posted November 8, 2014 Author Share #6 Posted November 8, 2014 great idea but .....I want to use the zx distributor... newer........ I wonder if the extra connection on the early turbo distributor retards? I'll have to look in an fsm. Link to comment Share on other sites More sharing options...
Captain Obvious Posted November 8, 2014 Share #7 Posted November 8, 2014 I haven't looked at the ZX stuff, but the later Z's used dual pickup distributors in the auto-trans versions. Maybe they did the same thing with the ZX's? That would be an easy way out. Link to comment Share on other sites More sharing options...
madkaw Posted November 8, 2014 Share #8 Posted November 8, 2014 Certain ZX modules have the retard option. Basically two sets of connection tabs. I believe it pulls 8-10 degrees from timing! It might be the 12-92 module. Other than that it is the same advance numbers . Link to comment Share on other sites More sharing options...
240260280z Posted November 8, 2014 Author Share #9 Posted November 8, 2014 Great team work..thanks guys! Solved for interoperating with vac advance: the lever would activate an electrical switch to power or gnd (what ever is required) the 1`2-92 contact to retard the timing at start... no more empty lever slot and easier starting Link to comment Share on other sites More sharing options...
madkaw Posted November 8, 2014 Share #10 Posted November 8, 2014 You are just bound to use that lever for something. How about a slow release to an NO2 bottle😵 Link to comment Share on other sites More sharing options...
240260280z Posted November 8, 2014 Author Share #11 Posted November 8, 2014 that works too! Link to comment Share on other sites More sharing options...
rossiz Posted November 8, 2014 Share #12 Posted November 8, 2014 cable it to an exhaust diverter valve so you can go from whisper quiet to full-breathing fury at will. Link to comment Share on other sites More sharing options...
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