318 TIMING QUESTION
So I have this 318LA with mild upgrades cam higher compression pistons, intake carb, ignition. I had the timing set at 17 DEG Before and it ran well. I bumped it up to 21 just messing around and it seems to run a lot better. I don't hear any detonation even under heavy acceleration and it seems to purr like a kitten.
question - does that seem like a lot of advance for a relatively mild 318? the procedure I am using is 1000 rpm vacuume advance pulled and plugged, plugged on carb, and set to 21 deg before. or do you think my balancer might have slipped one way a little and i am really not timed to what i have it set at? Thanks all Luke 1965 Plymouth Belvedere II |
If the distributor has any sort of "fast" advance curve, setting the initial timing at 1000 RPM might already be causing the mechanical adviance to move, therefore your timing setting is not what you suppose.
I would use a piston stop to determine "IF" the timing marks are actually correct, and either degree the wheel or buy so called "timing tape" so you can check TOTAL advance. With no vacuum, somewhere 32-38* is probably what you are looking for. |
Thanks at what rpm will all of the advance curve most likly be in on so i can set the timing then?
i would set it with the vacuum disconected correct? Thanks Luke |
Originally Posted by SPICOLIE203
(Post 67284)
Thanks at what rpm will all of the advance curve most likly be in on so i can set the timing then?
i would set it with the vacuum disconected correct? Thanks Luke |
Thanks i will have to fool with it a little
thanks luke |
You should really start timing at idle not 1000 rpm, You are reading advance into it, but probably not full advance. Total advance will depend on what you motor likes. They are all a little different. More so once modified. As long as you are not getting detonation you are good.
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