Originally Posted by
BRAM
Ha ha cheers Stu i have been reading your articles last night and think im starting to understand more now, its harder than i thought it was going to be to map a car but will only learn by just doing it so we just jumped in at the deep end and bought the management.
We will get there hopefully without melting anything.
Cheers Bram
You will be fine mate, but research some basic info first so that you dont damage things while learning.
As a rough guide, "HOT" idle and cruise fuelling i would set to around 13:1 AFR and then full load around 11.5:1 AFR.
Spark wise:
Idle at 14 deg, cruise at 20deg and full load at 5deg will allow virtually any averagely powered petrol 4 stroke to be driven at part throttle with no real problems bar some retard.
Det cans are still adviseable just in case your compression is 19:1 not 9:1 as you thought. LOL
These figures will work and be safe for almost all petrol 4 strokes. You can then go about tuning from there.
Originally Posted by
tabetha
Do what makes your engine happy, forget the "official" figures, too many variations.
tabetha
Ah well, he best ignore my advice then. Doh.
