going to smaller cam cause car to be rich?
going to smaller cam cause car to be rich? Going from a ls1 w/ a ms3 113lsa mail order tune to a 6.0 bored 40 over with a set of 243's milled 10 thousands w/a a 224/230 .609/.604 112lsa. Car never smoked n has been cranked 3-4 times . Just drove it and developed a light bluish white smoke. SES light came on when driving . Never got over 3 grand on the tach n drove maybe half a mile tops. Could car have gone into closed loop causing to run extremely rich. Exhaust is strong enough to burn ur nose hairs. Any thoughts?
Just cranked up car and still getting a lil bit of smoke. Pulled 6 plugs so far and none are showing any sign of oil . All plugs look the same so dont think its a coolant issue either. Any thoughts? Possibly just the tune causing the smoking? SES LIGHTS STILL ON TO.
well, YEAH, it's going to burn rich as hell... Think about it. The open loop tables have set values, and the fuel map is set up for a lot more cam... More intake airflow=more fuel needed to make a stoich mixture. The airflow is now gone, but the PCM is still dumping all of the fuel for it.
Thats what i was thinking. Thanks. i pulled the pcm ign fuse and batt fuse . SES light was gone but car had to refind idle but no smoke it ran for. 2-3 mins. B4 the smoke came back but was very light. Less than what it was doing i reved to about 2300 rpns n smoked a lil. So im leaning towards the tune causing the light smoke. Sorry guys newbie to this really n was first ls motor ive ever built from ground up . Just paranoia i guess lol. Oh and car on has 1.1 miles on the motor and maybe 20 mins tops of idle and ocassional rev to about 25-2700rpms. Motors quiet as a mouse though . So keeping my finger crossed its bcuz of the ms3 tune which wasnt spot on when i had the ms3 in the previous motor
