[DeTomaso] Considering a new distributor ...

[Thomas Tornblom]

Larry - Ohio Time Corp skrev:
> Hi Rich,
> 
> Is it not normal to just fire the plug an extra time during the exhaust
> stroke? 

Depends on if he has 4 dual output or 8 single output coils.

On a system with 4 dual output coils (wasted spark) there will be two 
plugs firing simultaneously, one on the compression stroke and one on 
the exhaust stroke. It does not need a cam sensor for the ignition, 
unless one needs different timing on the two cylinders at TDC.

Thomas


> 
> Larry - Cleveland
> 
> 
> -----Original Message-----
> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
> Behalf Of Rich
> Sent: Sunday, February 15, 2009 3:24 PM
> To: kenn_green at yahoo.com; detomaso at realbig.com; Erik Anderson
> Cc: Jason Eaton
> Subject: Re: [DeTomaso] Considering a new distributor ...
> 
> I have an electromotive on my white car.
> It uses the crank trigger to fire the plugs, but  of course it does not know
> 
> if you are on the compression or exhaust side of the cycle without the other
> 
> signal.
> To solve this I added a sensor to the inside bottom of an old distributor 
> where the mechanical advance is.
> In the bottom of the distributor  cut all but one of the weight arms off 
> leaving one metal arm to use to trigger the sensor.
> The distributor turns with the cam and can be used to send the compression 
> cycle signal to the computer.
> The crank trigger does the exact timing trigger.  The distributor signal 
> only tells the computer when to start.
> I cut the distributor off where the points plate was and used the screw 
> holes to install a cover.
> The distributor now runs the oil pump and the one sensor.
> Rich
> ----- Original Message ----- 
> From: "Ken Green" <kenn_green at yahoo.com>
> To: <detomaso at realbig.com>; "Erik Anderson" 
> <eanderson at geotracinternational.com>
> Cc: "Jason Eaton" <jeaton at cybersource.com>
> Sent: Sunday, February 15, 2009 11:54 AM
> Subject: Re: [DeTomaso] Considering a new distributor ...
> 
> 
> I think Jason has the electromotive system. FAST (now part of the Comp Cams 
> family) made something call as "EDIST" and now has a newer version called 
> the "XIM" that lets you build a coil on plug system. The Electromotive is a 
> waste fire system so you only need a crank signal, you need a cam signal for
> 
> the coil on plug. Fred Terry had a very cool cam sensor setup through the 
> unused mechanical fuel pump mounting point. I think some people claim a 
> small performance gain from coil on plug, amd all the GM LS series motors 
> are coil on plug.
> 
> Ken
> 
> --- On Sun, 2/15/09, Erik Anderson <eanderson at geotracinternational.com> 
> wrote:
> 
> From: Erik Anderson <eanderson at geotracinternational.com>
> Subject: [DeTomaso] Considering a new distributor ...
> To: detomaso at realbig.com
> Date: Sunday, February 15, 2009, 9:36 AM
> 
> Just curious ... does anyone make a crank fire/trigger ignition system for 
> the
> Pantera?
> 
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Real life:   Thomas Törnblom             Email:  Thomas.Tornblom at Hax.SE
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