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Marv D · 05-01-2010, 10:40 AM

Can only 'ditto' the cableguy's comments. Locking out the advance is fine if your at the track, launching the truck above 4000rpm so that the only time the motor sees anything below 3600-3800 is ideling around the pits. What it does is give you a rock solid baseline of whre your timing is (no revving it to the moon to see where the advance tops out) You set it at 37° at idle and (assuming no cam walk) it's at 37° everywhere in the rpm range. It's not a street thing by any means. Locking out the advance is only practicle when the operating range of the motor would be ABOVE any advance function.

Hey ya know one more thing it will do for you,, it test the strength of your starter and flexplate. I've seen more than one starter break the nose off on a high compression engine that had the advance locked out. If you don't have a start retard,, it's murder on starters.

05-01-2010, 10:40 AM	#5
Marv D Registered Truck Offender Join Date: May 2008 Location: hells training ground (aka Ariz) Posts: 3,118	Re: timing advance question Can only 'ditto' the cableguy's comments. Locking out the advance is fine if your at the track, launching the truck above 4000rpm so that the only time the motor sees anything below 3600-3800 is ideling around the pits. What it does is give you a rock solid baseline of whre your timing is (no revving it to the moon to see where the advance tops out) You set it at 37° at idle and (assuming no cam walk) it's at 37° everywhere in the rpm range. It's not a street thing by any means. Locking out the advance is only practicle when the operating range of the motor would be ABOVE any advance function. Hey ya know one more thing it will do for you,, it test the strength of your starter and flexplate. I've seen more than one starter break the nose off on a high compression engine that had the advance locked out. If you don't have a start retard,, it's murder on starters. __________________ Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral.