Hey guys, first off I am very new to this.
I tried doing a start up tune for my 230/234 .612/.590 spinmonster cam in my 2008 ls3 M6 corvette
What I have found is a few things,
1.) is my commanded AFR should be ~12.53, as my multpliers are 1.17, and my stoich is 14.67. However, when i start it and let it warm up to operating temps, the commanded AFR is ~11.90, (actual is around 12.90 as I havent messed with the maf much yet)
why is this so, I want to command 12.5, and tune to it, and this just seems to flaw my whole understanding of the software.
2.) my old base header tune, idled great with this cam in, it would purrr at 650 rpm, and when revved it would fall right back to 650. Now that I have increased the airflows, it seems to hang up at 1050rpm, and then dip below 650? Seems like I should have stuck with the non tuned idle settings. does anything look messed here? (probably most of it)
I have not been able to take the car out of the garage as its still snowing here, the intake temps are in the 45* range, so I figured I gave my multipliers plenty of room.
Any help would be great. This tuning thing isn't as easy as it sound, does anybody one here do remote tunes for $$?