I rigged up my LM-1 on a mates cossie the other night only to find it running very rich (8.5:1 afr mostly on boost).

He recently had it setup with an off the shelf chip from a fairly well known tuning company and hasn't changed anything since.

I understand that an off the shelf chip will be set on the safe side so as to cater for the slight variations in specification on different cars but would you expect them to set it soooo rich?

I haven't had much experience of off the shelf chips for cossies so i thought i had better ask?

Stu or Karl, if you knew the spec of a car, how close would you expect to get to optimum fuelling from a chip with out live mapping?