Author Topic: Advance curve for 280 with 123 ignition ?  (Read 111 times)

yves

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Advance curve for 280 with 123 ignition ?
« on: August 05, 2025, 09:40:53 »
I try to adjust the curve for my 123 ign
With the one attached.
Am i correct?
I have adjusted the static advance with  5 deg advance
Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...

Pawel66

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Re: Advance curve for 280 with 123 ignition ?
« Reply #1 on: August 05, 2025, 11:30:33 »
yves, I am attaching what I use (courtesy of a Member here), but there are also posts about this topic if you do a search.

I have 6deg advance.

I guess in higher revs you may go up to 38deg total if it is not pinging, I left it a bit lower.

Best is to go through search and related posts.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

yves

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Re: Advance curve for 280 with 123 ignition ?
« Reply #2 on: August 05, 2025, 21:07:07 »
Thank’s Pawel, your’ right about more advance to higher revs , manu told me to adjust 30 degres at 3000 revs
Happy owner of a 69 blue 280SL ,  63 FHC  osb E-type , 55 FHC XK 140 to be restored...

 

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