[TimT]

Which EFI system are you using? Not sure if my maps would be applicable...

Those maps for when the engine was n/a should be a great staring point.. basically already tuned in the non boost areas.. so you only have to tune the boost areas.

Anyway, as Goran mentioned, set the idle first.5 deg is ok , we usually run ten.. and in the low idle cells bump the timing so if the engine feels like stalling, the add'l advance with power it over the stumble.

If you don't feel comfortable tuning max rpm next.. tune at 1000 rpm intervals..

Drive the car on the dyno no load.. assure a/f is ok then tweak timing

Drive the car on the dyno add load... tweak timing until it peaks.. then back off a bit

Drive the car on the dyno add more load.. tweak timing until it peaks.. then back off a bit

Continue this @ 1000, 2000, 3000, 4000, 5000 etc.. then look for trends in the map... you can smooth the intermediate points manually off the dyno if you want... Set timing at max rpm 7000? say 26 deg max... run the engine up to 7000...check a/f is ok... apply load...tweak timing till peak power ... then back off a degree or two.

again go through the map and look for trends...tweak a bit...


You can do alot of adjustment to the map sitting on your couch at home while watching tv... You don't want to see any crazy spikes in the map

Also turn off over run fuel...

Also that static timing error is big...