Distributor advance

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Apr 3, 2011 | 07:44 PM

rdweathers

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From: Florida

Distributor advance

Any perferances for distributor advance vacum or mechanical? Why would you pick one over the other?

Apr 3, 2011 | 08:06 PM

fmc400

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Joined: Apr 2004

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From: Austin, TX

You need both. Mechanical advance advances the timing based on RPM; vacuum advance advances the timing based on load. The factory distributor employs both.

Apr 3, 2011 | 08:31 PM

rdweathers

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From: Florida

What if you are going to a new aftermarket distributor, why would you pick a non vacum advance over vacum?

Apr 3, 2011 | 11:34 PM

Ziegelsteinfaust

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Joined: Dec 2010

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From: Chino Hills

Its for race/higher hp motors typically those that run nitrous or or lots of boost.

I am not sure how they work with it totally, but I have seen my friend set his 250 shot of nitrous up that way based on a book, and expert advice.

On a street motor you will give up power as you accelerate, and probily loose a good chunk of mpg's.