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Forum: General Fuel Topics

09-24-2007, 12:35 AM

Replies: 8

Can anyone tell me info on the max ignition advance for a Saturn SOHC?

Views: 1,457

Posted By cheapybob

Put a tank of Shell V-Power 93 in it, reset, and...

Put a tank of Shell V-Power 93 in it, reset, and relearned. Highest seen was 41, but I'd say it was typically running up to 1 degree more advance. Very minor mpg gain, maybe 1 mpg on the highway. ...

Forum: General Fuel Topics

09-12-2007, 05:48 PM

Replies: 8

Can anyone tell me info on the max ignition advance for a Saturn SOHC?

Views: 1,457

Posted By cheapybob

Well, I guess I can always wait a month till the...

Well, I guess I can always wait a month till the tank is almost empty, put in a few gal of 93, reset and relearn, and try a test run.

Forum: General Fuel Topics

09-12-2007, 08:52 AM

Replies: 8

Can anyone tell me info on the max ignition advance for a Saturn SOHC?

Views: 1,457

Posted By cheapybob

I've seen 39 and 40, but its been rare to see a...

I've seen 39 and 40, but its been rare to see a 40. There is a guy on Saturnfans with an SC2 (DOHC) that has had momentary 47.5 advance running 93 octane.

If i recall correctly, for every...

Forum: General Fuel Topics

09-11-2007, 09:18 PM

Replies: 8

Can anyone tell me info on the max ignition advance for a Saturn SOHC?

Views: 1,457

Posted By cheapybob

Can anyone tell me info on the max ignition advance for a Saturn SOHC?

Mine gets to 38 or 39 max. I run 87 octane fuel, no additives. I'm trying to find out if there is some point at which it either can't go beyond, or where there is no fuel economy improvement. From...

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