Base timing. Really ?
THE way to do it right, well, here is this, the only way
Engines like to idle with between 20 and 24 INITIAL degrees, but don't like starting with that much lead.
So, how o get it right?
How about 14 initial? Well, not enough.
OK, lets fix it, we have the talent.
Build a simple degrees stop n the vacuum advance, and for say, 14 INITIAL, set the degrees stop to give 10 degrees, and plug it into full manifold vacuum. Stop the pin travel to set the degrees, DO NOT PUSH THE PIN INTO THE SPRING.
Engine starts a the conservative 14, vacuum builds, brings the v/a in, with the added 10 v/a degrees, IDLE is now 24 deg/BTDC.
Modify stop as needed. DO NOT USE PORTED VACUUM, a second accaleration advance curve isn't needed when the mechanical curve is correct for the application, it isn't for an EMISSIONS engine.
[email protected] Works on other makes advances as well. Be creative.
THE way to do it right, well, here is this, the only way
Engines like to idle with between 20 and 24 INITIAL degrees, but don't like starting with that much lead.
So, how o get it right?
How about 14 initial? Well, not enough.
OK, lets fix it, we have the talent.
Build a simple degrees stop n the vacuum advance, and for say, 14 INITIAL, set the degrees stop to give 10 degrees, and plug it into full manifold vacuum. Stop the pin travel to set the degrees, DO NOT PUSH THE PIN INTO THE SPRING.
Engine starts a the conservative 14, vacuum builds, brings the v/a in, with the added 10 v/a degrees, IDLE is now 24 deg/BTDC.
Modify stop as needed. DO NOT USE PORTED VACUUM, a second accaleration advance curve isn't needed when the mechanical curve is correct for the application, it isn't for an EMISSIONS engine.
[email protected] Works on other makes advances as well. Be creative.