Quote:
Originally Posted by Tom Kirkham
Here is a link to my other post:
http://clubcobra.com/forums/showthread.php?t=97890
Something to consider is most of us are not running vacuum advance. So our cars are typically cruising down the road with the ignition retarded from optimum. This means wasted fuel, poorer throttle response and higher under hood temperatures. In a light car with a manual transmission, a SMART driver, and a start retard a good case can be made for looking out the advance. |
I run 28 Deg intial and 38 max with my non-vacuum dist. And I have run it higher with no issues.
A vacuum unit would be better as I could then set the intial around 16 (for my cam at max power) and the vacuum for 38 Deg at idle (best idle pulling 20 in Hg @ 38 @ 800 rpm).
To set my non-vacuum dist at 16 idle, the enigne gets hot quickly with a lot of excess heat from the headers. It also bogs when i try to gun it. Up at 28....works awesome.
I think for now that I'll stick to the theorey that if an engine needs a ton of advance with no-load, and very little advance under full load, then a vacuum advance would be a terrific help. And since I don't have one yet, my car benifits from timing somewhere in-between.
