Author Topic: What ignition advance for a 351W ?  (Read 6516 times)

rouge67

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What ignition advance for a 351W ?
« on: May 21, 2007, 02:26:05 PM »
What is the good timing mark for setting the initial advance? I heard that the good value is arround 10 instead of 6 shown in the manuel. The advance is depending of the octane fuel number. Here in europe the number is 95. How much in 1969 ?

Thierry

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Re: What ignition advance for a 351W ?
« Reply #1 on: May 23, 2007, 07:15:15 PM »
I searched the web and all I have found is the posts you submited in other forums  :lol:
 I really don't know the answer and what was answered still doesn't mean anything to me but as the european and north american octane rating can't be compared I guess you will probably get a better answer in a forum with european users. In 1969 there was also a different method to rate octane.
 The mechanical stuf is not my domain and I hope you will find the answer.
 Is your Mustang running bad?

rouge67

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Re: What ignition advance for a 351W ?
« Reply #2 on: May 24, 2007, 12:32:39 PM »
My engine seems running good, but I'm asking what would be the best advance setting. Many owners say the good setting is arround 10. I think that the today octane number is higher than in the past. Thus, the advance would be reduced. I want to know why somes do the opposite.

Russ

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Re: What ignition advance for a 351W ?
« Reply #3 on: June 25, 2007, 03:39:49 AM »
I think that it is 8*-12* is a good range you might have to try to set your advance forward and igit. to 8 and that might help let me know either way. STANGOUT

rouge67

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Re: What ignition advance for a 351W ?
« Reply #4 on: June 25, 2007, 05:56:10 AM »
Thanks, I read that the most important setting is for high R.P.M. : max advance; initial+mechanical; must be 36 to 38 with vacuum disconnected and plugged. Not yet tried this.

 

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