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Mechanical V's Vaccum Distributors

 
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Kiwi Cortina



Joined: 20 Dec 2011
Posts: 273
Location: Novato Ca

PostPosted: Fri Mar 10, 2017 6:13 pm    Post subject: Mechanical V's Vaccum Distributors Reply with quote

What if any are the advantages or disadvantages of using a mechanical distributor? I am looking at maybe putting one of theses in my Estate project.
https://www.pegasusautoracing.com/productdetails.asp?RecID=9670
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Langlia



Joined: 14 Dec 2015
Posts: 350
Location: Langley BC

PostPosted: Fri Mar 10, 2017 7:49 pm    Post subject: Reply with quote

I like it. I know pretty much nothing about the two, but based off some light reading it seems Mechanical has a better feel to it.. Stories of never getting the vacuum dialed in, mechanical feels more responsive, etc..

Can you convert your existing dizzy or do you need to buy that whole unit?
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Kiwi Cortina



Joined: 20 Dec 2011
Posts: 273
Location: Novato Ca

PostPosted: Fri Mar 10, 2017 10:16 pm    Post subject: Reply with quote

I'm looking at the whole unit. To put the Pertronix Ignitor in the existing dizzy costs about $140,plus coil. This whole package costs $250 with distributor, cap, rotor.
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peteleo



Joined: 24 Aug 2008
Posts: 891
Location: San Mateo,California

PostPosted: Fri Mar 10, 2017 11:13 pm    Post subject: Reply with quote

Brent,

There is quite a few articles on the advantages & disadvantages regarding vacuum advance.
Personally, I prefer vacuum advance on a street car. Mainly engine idles better with it. Most say engine runs cooler and more economical. Spark plugs stay cleaner. Though haven't noticed any difference. Race cars don't use vacuum canisters as they are mostly running full throttle. Pete
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enfoprefect



Joined: 04 Feb 2009
Posts: 143
Location: Oklahoma

PostPosted: Sat Mar 11, 2017 8:53 am    Post subject: Reply with quote

Mechanical is ideal for a race car but not so much for a street car. It's almost sure to cause some stumble at lower rpm when wanting to accelerate just a little. Also mechanical usually doesn't give enough advance for highway cruising resulting in excess heat as well as fuel consumption. For years the only distributor available for VW Beetles was the Bosch 009, all mechanical unit. this worked reasonably well for the "younger" guys who mostly ran them with heavy foot either on the gas or brake pedal. fortunately that has changed recently with vacuum options again. Those of us who prefer to drive them more leisurely can really enjoy the difference.
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Kiwi Cortina



Joined: 20 Dec 2011
Posts: 273
Location: Novato Ca

PostPosted: Sat Mar 11, 2017 9:18 am    Post subject: Reply with quote

Thanks guys, I may hold off on it now due to the heat issues.
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