my rotor is bigger than your rotor

Claus Vegener vegener at
Tue Jun 11 11:43:14 EDT 2002

I have tried the Jacobs ICE system
It is triggered from the original coil through a resistor. and
connect to the center electrode of the distributor.
No change in management and easy to switch in and out.
It should measure the current to each plug and keep it constant;
 but the F5DPOR have
so low a resistance, that the system stops measuring.
I changed to the recommended sparks in the middle of a track event, when
my fuel pressure were too high so I have a hesitation above 5000 rpm.
I noticed no change running Jacobs with F5DPOR, Bosch F6DC
or factory ignition with F5DPOR so I dismantled the Jacobs just a week ago
to give room for a waterinjection Aquamist
Factory ignition supports 400 Hp to my experience but getting rid of the distributor
at that place would be fine.
----- Original Message -----
From: "TM" <t44tq at>
To: "'Eyvind Spangen'" <eyvind.spangen at>
Cc: <200q20v at>
Sent: Tuesday, June 11, 2002 1:01 AM
Subject: RE: my rotor is bigger than your rotor

> From some very cursory research, far too much- ECU, parts of the
> wiring harness, everything related to the ignition system- power
> output stages, ignition coils, sensors, etc. I believe Tommy Arnberg
> or someone (pretty sure they were in Scandinavia) actually did the
> conversion, said it was more trouble to do than it was worth.
> Might actually be cheaper to buy an AAN and do an engine swap.
> Taka
> -----Original Message-----
> From: Eyvind Spangen [mailto:eyvind.spangen at]
> Sent: Monday, June 10, 2002 3:41 PM
> To: TM
> Cc: 200q20v at
> Subject: Re: my rotor is bigger than your rotor
> On Mon, 10 Jun 2002 15:25:49 -0400, you wrote:
> >Brett-
> >You're only running approx. 18psi. When you go to RS2 turbo and up the
> >boost to about 22-24 psi, then the narrow rotor becomes an issue.
> >Cross-fire under high boost will kill your engine. That's why I was
> >toying w/ conversion to AAN spec, but it's too costly and
> >time-consuming.
> What is involved in converting to the AAN ignition system?
> --
> E. Spangen
> '90 Audi 200TQ 20v (uten skilter, uten problemer)
> '96 Sykkel, drevet av '81 fattig student
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> 200q20v mailing list
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