Ignition Timing and Vacume

jseaton · 04-28-2001, 05:57 PM

Does anyone know what the normal full advance should be set at? I thought it was 30 degrees at 3500 rpm??? Does this sound right?

Also, what about vacume at idle? Does 11 or 12 sound correct?

Thanks!

93Voss5.0 · 04-28-2001, 11:06 PM

Correct timing is based on your combo. For naturally aspirated, 14 degrees at vacuum idle is a good starting point, going up from there. As far as full advance, it's all according to what you have, On a midly modifed motor, full advance should be in the ball park of 30-36 degrees

jseaton · 04-29-2001, 11:06 AM

Thanks a lot!

Do you know what the normal vacume draw at idle is though? Does 12 inch sound ok?

Thanks!

04-28-2001, 05:57 PM	#1
jseaton Registered Member Join Date: Sep 1998 Location: carrollton,texas,usa Posts: 59	Ignition Timing and Vacume Does anyone know what the normal full advance should be set at? I thought it was 30 degrees at 3500 rpm??? Does this sound right? Also, what about vacume at idle? Does 11 or 12 sound correct? Thanks!

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04-28-2001, 11:06 PM	#2
93Voss5.0 Registered Member Join Date: Apr 2001 Posts: 3	Correct timing is based on your combo. For naturally aspirated, 14 degrees at vacuum idle is a good starting point, going up from there. As far as full advance, it's all according to what you have, On a midly modifed motor, full advance should be in the ball park of 30-36 degrees

04-29-2001, 11:06 AM	#3
jseaton Registered Member Join Date: Sep 1998 Location: carrollton,texas,usa Posts: 59	Thanks a lot! Do you know what the normal vacume draw at idle is though? Does 12 inch sound ok? Thanks!