What advance for 351W ignition ?
5th Gear Member
Joined: Nov 2006
Posts: 2,287
From: North Fulton, GA
RE: What advance for 351W ignition ?
Your ignition will also have an effect on your timing. With the MSD ignition box, dizzy and coil, the dyno showed that my car liked 12* BTDC best on '91 octane at a few hundred feet above sea level.
I ♥ Acer
Joined: Dec 2002
Posts: 148
From: USA
RE: What advance for 351W ignition ?
I'm set at about 8 or 9 BTDC. Like some others, 6 just seems too low for my engine to operate at it's peak. Like Soaring, I first set the timing with the light, then turn the distributor slightly one way or the other to hear the engine ease up and seem to breathe better. That's where I lock her down and check it with the light again.
Thread Starter
1st Gear Member
Joined: Oct 2005
Posts: 55
From: France
RE: What advance for 351W ignition ?
ORIGINAL: gothand
Your ignition will also have an effect on your timing. With the MSD ignition box, dizzy and coil, the dyno showed that my car liked 12* BTDC best on '91 octane at a few hundred feet above sea level.
Your ignition will also have an effect on your timing. With the MSD ignition box, dizzy and coil, the dyno showed that my car liked 12* BTDC best on '91 octane at a few hundred feet above sea level.
Does anybody own the graphic curve with advance from 1500 to 5000 R.P.M. ?
5th Gear Member
Joined: Nov 2006
Posts: 2,287
From: North Fulton, GA
RE: What advance for 351W ignition ?
ORIGINAL: rouge67
Thanks everybody, Gothand, and with '95 octane ,what timing?
Does anybody own the graphic curve with advance from 1500 to 5000 R.P.M. ?
Thanks everybody, Gothand, and with '95 octane ,what timing?
Does anybody own the graphic curve with advance from 1500 to 5000 R.P.M. ?
So, what kind of distributor do you have?
2nd Gear Member
Joined: Aug 2005
Posts: 153
From: Oslo, Norway
RE: What advance for 351W ignition ?
ORIGINAL: gothand
Wow, that is some pretty high octane stuff you're running. For the timing curve, I imagine you'd have to look to the manufacturer of your dizzy. MSDs, for instance, come with heavy silver, light blue and light silver springs as well as curves showing the effect of each combination on timing.
So, what kind of distributor do you have?
ORIGINAL: rouge67
Thanks everybody, Gothand, and with '95 octane ,what timing?
Does anybody own the graphic curve with advance from 1500 to 5000 R.P.M. ?
Thanks everybody, Gothand, and with '95 octane ,what timing?
Does anybody own the graphic curve with advance from 1500 to 5000 R.P.M. ?
So, what kind of distributor do you have?
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: What advance for 351W ignition ?
We call regular gas 87 octane, mid range is 89 and premium is 91-93. I find it difficult to locate 93 octane for my Mach, so it gets to use 91. The computer adjusts though, so I'm not hurting anything.
Thread Starter
1st Gear Member
Joined: Oct 2005
Posts: 55
From: France
RE: What advance for 351W ignition ?
ORIGINAL: gothand
...
So, what kind of distributor do you have?
...
So, what kind of distributor do you have?
ORIGINAL: 66 Hardtop 5.0
The octane numbers in Europe and The USA are NOT the same. European 95 oct. is equivalent to US 90-91, in other words "regular gas".
The octane numbers in Europe and The USA are NOT the same. European 95 oct. is equivalent to US 90-91, in other words "regular gas".
2nd Gear Member
Joined: Aug 2005
Posts: 153
From: Oslo, Norway
RE: What advance for 351W ignition ?
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