<VV> Dual Points

Tony Underwood tonyu at roava.net
Mon Feb 13 19:47:28 EST 2006


At 09:51 hours 02/12/2006, Smitty Smith wrote:

>
>From: Ryan Verthein
>Subject: Dual Points-advantages?
>As far as I can tell, the advatage of a dual points system is that 
>each set does the job half as much as they do with a single point 
>system....while one is firing, the other is closed...so they last 
>twice as long by doing half the work.
>True?
>--------------------------------------------
>   Smitty says:  Dual points came in two flavors.  One type the 
> second set of points both closed and opened later than the first 
> set.  Reduced current load compaired to all being on one set as 
> well as extending dwell.  The other way was to operate each bank of 
> a V-8 for instance on a different set of points.  That way the lift 
> of the points could be more gentle and prevent float at extreme rpm.




Ala the Mallory special-perf dual-point/dual-coil...?   Got one of 
them too, for a 383 Mopar, not sure what I'll ever do with it.   I'd 
run it on Ebay if I thought anybody would buy it.   Interesting 
sucker, 4-lobe cam with gentle slopes, lots of dwell time, probably 
turn 7500 rpm and not float a point set.     I understand Mallory 
made one of these dual-coil/dual-point setups for a Corvair engine at 
one time.   Not seen one but I'd like to.


tony..  



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