Different Distributor for Different Heads??
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=24717
Printed Date: February-02-2025 at 8:56pm
Topic: Different Distributor for Different Heads??
Posted By: Bri892001
Subject: Different Distributor for Different Heads??
Date Posted: January-26-2012 at 6:02pm
I stumbled across this item under Clearance on the Skidim website. It is a Prestolite, two wire (no ballast) distributor, that is said to be specifically for RH engines (obvious) that are High Output or have GT-40 heads (not so obvious).
It says that the advance curve is set specifically for these engines. I though it was interesting. Would the advance be more or less aggressive, or just greater in range? Why?
http://www.skidim.com/products.asp?dept=1022 - Clearance with Special Dizzy at the Bottom
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Replies:
Posted By: SNobsessed
Date Posted: January-27-2012 at 10:53am
Brian - The advance curve they have is pretty mild. I think it is 18 degrees.
That is essentially the same dizzy I put in my boat. (Mine is LH). It works great; but not satisfied with stock, I sent it to a dizzy shop & they put in a lighter spring & extended the guide slots(for the weights) so it would climb the advance curve faster & get 24 degrees of variable advance.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin
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Posted By: GottaSki
Date Posted: January-27-2012 at 11:18am
The science behind it is higher compression needs less total advance, the flame front moves faster in a denser charge, so peak combustion pressure happens sooner.
There is probably a small diference in total span from the std. unit.
I doubt one could tell seat of the pants or enough to hurt anything if crossed up.
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole
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