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#1
10-21-2008, 06:19 AM
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69 Z28 Timing
-------Where do you 69 Z guys like to set your timing??? Car Im finishing up is bone stock in all ways.......Bill S
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#3
10-21-2008, 06:24 AM
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Re: 69 Z28 Timing
-----Sam,,,Jerry M set up the distributer, so I assume stock curve, weights and rebuild.......Bill S
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#4
10-21-2008, 06:30 AM
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Re: 69 Z28 Timing
If jerry set the distributor up he curved it. There should be a paper that came with it telling where to set the distributor up at idle and where it should be at around 2800 rpm's. probably 12-14 degrees at idle. No vacuum advance is necessary with jerry's set-up.
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#6
10-21-2008, 11:08 AM
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Re: 69 Z28 Timing
[ QUOTE ]
-------Where do you 69 Z guys like to set your timing??? Car Im finishing up is bone stock in all ways.......Bill S [/ QUOTE ] Disconnect vacuum advance and rev the engine until the centrifugal advance is pegged out (i.e. with Macneish distributor, should be all in by 2500-2800 rpm). Adjust for 36 degrees total. Don't worry about initial timing setting. Reconnect vacuum advance. If road testing causes knocking, retard the timing in 2-degree increments until knock stops.
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#7
10-21-2008, 04:51 PM
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Re: 69 Z28 Timing
-----Thank you, one and all!!!!!!! Its been so long since I had it done that I had forgotten (just another senior moment).........Bill S
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#8
10-21-2008, 07:14 PM
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Re: 69 Z28 Timing
[ QUOTE ]
Where do you 69 Z guys like to set your timing??? [/ QUOTE ] From a technical stand point, your timing is determined by a few things, namely cylinder pressure & fuel...timing up to the point of detonation is not always the optimum point...most folks would be surprised at how *low* some engines like their total timing to achieve optimum HP.
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#10
10-22-2008, 04:35 AM
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Re: 69 Z28 Timing
[ QUOTE ]
[ QUOTE ] -------Where do you 69 Z guys like to set your timing??? Car Im finishing up is bone stock in all ways.......Bill S [/ QUOTE ] Disconnect vacuum advance and rev the engine until the centrifugal advance is pegged out (i.e. with Macneish distributor, should be all in by 2500-2800 rpm). Adjust for 36 degrees total. Don't worry about initial timing setting. Reconnect vacuum advance. If road testing causes knocking, retard the timing in 2-degree increments until knock stops. [/ QUOTE ] Thats how I set my Z28 up and it purrs like a kitten, pulls hard up to 7000-7500 range on regular pump gas no additives. Good luck and have fun Bill. Mark 
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Mark
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