Errol,
Youve convinced me to give this a go, ill let ya know how i get on with it and
how well it works!!! One more question, im currently using Bosch MEC717 coils,
will i just be able to use one of these coils along with the s2 dizzy???
Cheers
Steve.
Errol Smith wrote:
> Steve,
> On the Z18 and Z20 8 plug systems the exhaust plugs are there to provide a
> later ignition source if the inlet plugs fail to ignite and thus hopefully
> lower emissions.
>
> With plug voltages of 8-12kv with the stock system depending on connection
> quality and lead resistances the stock system doesn't cut the mustard.
> Especially the price of the 8 plug caps and new rotor buttons.
>
> With the bluebird electronic in good shape, and the right coil, plug
> voltages of 40KV can be achieved. With a plug gap of 0.050" or so the system
> fries the mixture into burning and fires even when conditions are
> unfavourable.
>
> I sold an electronic dissy to a guy in Tasmania with a turbo l20B running a
> TO4 with big boost.
> With the stock points dissy 12 psi was causing the system to break down.
> With an electronic dissy he ran 22 Psi at the Oonah climb a couple of weeks
> ago with no probs.
>
> The secret is the larger plug voltages able to overcome higher resistances
> when higher cylinder pressures are produced.
>
> Cheers
> Feral Errol
> mailto:[EMAIL PROTECTED]
> http://www.datrats.com.au/
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Steve Taylor
> Sent: Sunday, December 31, 2000 0718
> To: [EMAIL PROTECTED]
> Subject: Re: Z18ET Z20E Ignitions
>
> Errol,
> Thanks for the info!! Im getting keener and keener on doing this, im still a
> little worried about the fact that b4 inlet and exhuast plugs were firing
> and
> now only the inlet plugs will be?!? For the minimal cost of doing the
> conversion
> it might be a worthwhile little experiment anyway!
> Steve.
>
> Errol Smith wrote:
>
> > Steve,
> > I didn't do dyno runs before and after but the engine definitely sounded
> > smoother at idle and seemed to run harder through the gears during
> > acceleration. My gut feel is that maybe 3 - 5% increase in power was made
> > due to loss of misfiring by the old points ignition system.
> > Cheers
> > Feral Errol
> > mailto:[EMAIL PROTECTED]
> > http://www.datrats.com.au/
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Steve Taylor
> > Sent: Saturday, December 30, 2000 1007
> > To: [EMAIL PROTECTED]
> > Subject: Re: Z18ET Z20E Ignitions
> >
> > Errol,
> > Sounds easy enough to do, but what do you think in regards to
> performance??
> > Obviously only having half as many plugs and leads to maintain would be
> > easier.
> > But will i lose any power, or smoothness as a result???
> > Cheers
> > Steve.
> >
> > Errol Smith wrote:
> >
> > > Steve,
> > > You will use these parts:- S2 electronic Bluebird dissy and coil L16,
> L18
> > > or L20B distributor drive shaft. Oil pump gasket (if easily available)
> > >
> > > Set engine on timing marker on compression stroke number one cylinder.
> > > Remove the distributor and the bolt in distributor plate from the timing
> > > cover. Note the exact orientation of the small dish on the dissy drive
> > > shaft.
> > >
> > > Undo 4 x 12mm oil pump bolts and remove the pump carefully. Push out
> the
> > > distributor drive shaft and replace it with the L series drive shaft in
> > > exact same orientation. Use a clean cloth to hold the shaft in position
> > > temporarily.
> > >
> > > Fit the new distributor to drive shaft and check that rotor orientation
> is
> > > aligned with the poles on the cap. Also check that the knife edge
> > inductors
> > > segments are aligned with the posts. This is the firing position. Bolt
> > the
> > > distributor into the timing cover.
> > >
> > > Replace the oil pump (new gasket if available) back into position,
> > ensuring
> > > the drive tang on the shaft is aligned & engaged in the pump shaft.
> Refit
> > > the four oil pump bolts and tighten.
> > >
> > > Connect the +VE lead of the coil to the +12V before the ballast
> resistor
> > > for the inlet side plugs.
> > > Check all connections and bolts again then start the engine.
> > > Cheers
> > > Feral Errol
> > > mailto:[EMAIL PROTECTED]
> > > http://www.datrats.com.au/
> > >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of Steve Taylor
> > > Sent: Friday, December 29, 2000 1026
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Z18ET Z20E Ignitions
> > >
> > > Errol,
> > > If we were to do this to the standard z18et ignition system what
> > procedures
> > > would we undertake exactly????
> > > Thanks heaps
> > > Steve.
> > >
> > > Errol Smith wrote:
> > >
> > > > Listers,
> > > > I have just finished fitting a Bluebird electronic to replace the Z20E
> > > twin
> > > > point dissy. This conversion is a must for any Z engine fans out
> there.
> > > The
> > > > engine is more responsive and sounds better at idle. Just the same as
> > with
> > > > an L18 or L20B. I opened the plug gaps up to 0.050" as well and It
> revs
> > > > happily with not a miss. He is only running plugs on the inlet side.
> It
> > is
> > > > heaps better than the Z20E, Z18ET electronic twin plug system!!!
> > > >
> > > > Cheers
> > > > Feral Errol
> > > > mailto:[EMAIL PROTECTED]
> > > > http://www.datrats.com.au/
> > > >
> > > > Get Your Private, Free E-mail from MSN Hotmail at
> > http://www.hotmail.com.
> > > >
> > >
> >
>
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