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tirwin tirwin is offline
Hey, nice marmot.
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Join Date: Feb 2011
Location: Marietta, GA
Posts: 5,071
Originally Posted by stlrj View Post
In reality, the vacuum retard was designed to increase throttle response while reducing emissions. It adds an instant 10 degrees of advance whenever you tip in the throttle at any rpm while helping your engine run cooler. I can't imagine why anyone would want to degrade their performance and cause their engine to run hotter, would you?

Them Porsche engineers kinda knew what they were doing...



The vacuum ADVANCE adds additional advance beyond the weighted springs of the distributor.

The RETARD only affects idle.

Why in the world would you want to retard timing when you’re tipping in on the throttle???
There are those who call me... Tim
'83 911 SC 3.0 coupe (NA)

You can't buy happiness, but you can buy car parts which is kind of the same thing.
Old 04-25-2019, 11:31 AM
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