Hey all.....was thinking about a Meth setup for my cobalt.....currently has a 2.7" and some 60 pound injectors.....wondering where I would start from there in terms of starting to tune for the meth???? Would if be mostly timing adjusmtents needing to be made, or will the fuel need to be completley redone as well??

 

well since spraying meth is technically adding fuel into the cylinder. your fueling is going to be affected.

 

I would think I would need to lean out in PE when I would be spraying....I was probably going to cut back to around 11.8-12.0...but not to sure what others run while spraying

 

You want to lean out the car's fuel for sure. I ran 11.5 while on meth on the street. At the track I ran 12.2 or close to that.