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#31
03-06-2012, 02:27 AM
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Re: Vacuum Advance and why to use it on the street
Great question Eric. Fogive me that I don't know what the factory timing specs were on these engines. Did they have any emissions controls? I suspect I know why the VA may not have been utilized, but I am such a Day 2 guy that I honestly don't know how these were in stock form. I'll be the 1st to admit that my tunes aren't always the most "emissions compliant" as the OE's are required.
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Paul III 
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#33
03-06-2012, 03:54 AM
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Re: Vacuum Advance and why to use it on the street
I dont' want this going the wrong way here. Let's keep it civil.
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Paul III
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#34
03-06-2012, 06:23 PM
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Re: Vacuum Advance and why to use it on the street
For comparison's sake only, draw your own conclusions as you see fit.
Stats listed in distributor degrees and distributor rpm: 1111499 distributor: 0°-2.7° @ 500 3.2°-5.2° @ 625 8.5° @ 1000 16° @ 2500 Vacuum advance can # 1116201 0° @ 6" vacuum 7.5" @ 12" vacuum ============================= 1111295 Distributor: .5°-3.3° @ 700 6.7°-9.5° @ 930 13.5°-15.5° @ 2500 12.7°-15.5° @ 3000 Vacuum advance--locked out ============================= 1111927 Distributor: .5°-3.3° @ 700 7.5°-9.5° @ 930 14.5° @ 2500 (max) Vacuum advance--locked out. I'm done here. I'm not looking to win any arguments, I'm simply trying to provide useful info. Take it for whatever it's worth to you.
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#35
03-06-2012, 08:21 PM
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Re: Vacuum Advance and why to use it on the street
Useful info on today GAS with a hot camshafts...Vacuum advanve has to be limited. Useful info.
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