123 distributor timing

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advinnie
Posts: 974
Joined: Mon Jun 10, 2013 4:54 am

123 distributor timing

Post by advinnie »

Hi all. I’ve just got my hands on a used but working 123 distributor. I got it all running and starting looking at the ignition maps installed on it. There is only one called ‘stock svda for Vw ‘ but the max advance is set to 28 BTDC at 3800 rpm.
So may question is does any one have a map I could copy including vacuum advance figures.
Cheers all
Bruce.m
Posts: 968
Joined: Sun Aug 11, 2013 1:44 pm

Re: 123 distributor timing

Post by Bruce.m »

You can download presets from their website, although limited options.

The “best” timing depends on the engine specs. You could copy a 009 curve as a baseline and add vac advance on top, if that suits the engine.

I add a bit more advance after the peak torque when volumetric efficiency drops away.
advinnie
Posts: 974
Joined: Mon Jun 10, 2013 4:54 am

Re: 123 distributor timing

Post by advinnie »

Thanks for the reply, I will go and have a look now at their website to see if i can download some presets
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