205 xs ignition timing

macaroni · Post by **macaroni** » 07 Mar 2006, 13:44

With or without the vacuum pipe connected, my car idles much better with the ignition at maximum advance. ie with the dizzy turned entirely one way.

Is it safe to run it like this, or should I set it to 8degrees BTDC and suffer a lumpy idle and judders at low speeds?

It has to be said that the car is fitted with a 280 degree duration camshaft.

Any help gratefully received.

rossd · Post by **rossd** » 21 Mar 2006, 12:37

You'll need to get it on a rolling road to get the ignition set properly as cam timing and ignition timing are linked, change one and another will need changing.
Best way to do it is advance it a bit at a time until it pinks when you accelerate and then back it off a bit to stop the pinking.