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Date:         Sat, 13 May 2000 22:07:12 -0400
Reply-To:     Tom and Dana Cates <dcates1@HOME.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Tom and Dana Cates <dcates1@HOME.COM>
Subject:      Re: New Tech. in Old Applications.
Comments: To: Adam Puzerewski <puzerewski@email.msn.com>
Content-Type: text/plain; charset="iso-8859-1"

Well, I think that the Pertronics must not be just a switch off/on. I think that as the leading edge of the magnetic field encounters whatever the switching device is, they 'Open' just like points and when the trailing edge of the field exits whatever the switching device is, they 'Close', just like a set of points.

So, the dwell would still be a factor when retaining the rest of the stock, point type ignition. I think.

----- Original Message ----- From: "Adam Puzerewski" <puzerewski@email.msn.com> To: "Tom and Dana Cates" <dcates1@HOME.COM>; <vanagon@GERRY.VANAGON.COM> Sent: Saturday, May 13, 2000 7:27 PM Subject: Re: Re: [VANAGON] New Tech. in Old Applications.

> Isn't dwell a measurement of the points? With the pertronix, there are no > more points, thus no dwell. Is this thinking correct? > > ADam Puzerewski > 81 westy > -----Original Message----- > From: Tom and Dana Cates <dcates1@HOME.COM> > To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM> > Date: Saturday, May 13, 2000 5:21 PM > Subject: Re: [VANAGON] New Tech. in Old Applications. > > > >Beckett, > > > >See, when I installed my Pertronix, I did not replace anything else. So, > >unless I am horribly mistaken, the dwell is still a somewaht valid tuning > >parameter. Maybe the kind Doktor can enlighten us all. > > > >Tom > > > >----- Original Message ----- > >From: "Beckett Cantrell" <THX0980@AOL.COM> > >To: <vanagon@GERRY.VANAGON.COM> > >Sent: Saturday, May 13, 2000 4:01 PM > >Subject: New Tech. in Old Applications. > > > > > >> Hey Doc! I agree with what you've said, but am now wondering if we have > >all > >> missed some important facts regarding the change over from a Kettering > >ing. > >> sys.(ie. points, condenser) to a Hall Effect sys(ie. Pertronix) I've got > a > >> stock 2.0L FI eng. in my Federal ' 80 Westy, with a manual trans. I've > >added > >> a Pertronix Ignitor, Tiger 581 CDI ignition module and platnium plugs. In > >> regards to the various postings to the list as per the subject of dwell: > I > >> was under the understanding that dwell only applys to a Kettering style > >ign. > >> sys. When you switch to a Hall Effect, dwell no longer can be used as a > >spec. > >> because the Hall sender is switched on or off for the exact same period > of > >> time, independant of eng. rpm.( This was taught to me when I took the > test > >> for, and passed, the OMC and Mercruser Stern Drive and Inboard Master > >> Technition certification, at both of their respective factories, when the > >> subject of changing over to a Hall Effect ign. sys. was broached ) I was > >told > >> that switching out a Kettering sys. for a Hall Effect sys., in older > >app.'s, > >> was not detrimental, and in fact a worthy upgrade. As for a CDI sys., > >> anything that can deliver a constant 30kv to my plugs ( confirmed with a > >> Snap-On kv meter) at all eng. speeds,from cranking to 5000rpm, can only > be > >a > >> good thing.( remember, that with points, firing voltage dramatically > drops > >as > >> rpm increase) As for the platinum plugs, well, I'll give you that one, > >they > >> just made me feel better! All of the above equiptment was been installed > >on > >> this particular eng. for over 50k miles, without problems, and documented > >> gains in mpg and driveability(p-mail me Doc, and I'll send it off to > ya'). > >> Remember, new technology is not always bad technology. Or are you one of > >the > >> folks who still think that adding sand seals to the VW eng. was a bad > >idea? > >> Yours, > >> Beckett > >> > > >


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