Originally Posted by victory181
I'm woundering if anyone knows where I can send my chip and CU to to get flashed. I spoke to American muscle and they don't mail order any blown cars or 5.4 engine swapped mustangs either . I have a heavily modded 5.4 blown car and don't know what to do. Also live in ME and no one here does dyno tunes at all
---------- Post added at 09:10 PM ---------- Previous post was at 09:08 PM ----------
Also correct me if I'm wrong but I would think the 5.4 would be a diffrent tune then a 4.6 ???
I am sure the 5.4 would be different because it is a larger cubic inch engine so it will require different fuel/air adjustments at least.
Research some handheld tuners.
Find the company who is most willing to work with you over the phone or through email.
AFM is very helpful with the PMS Tuner, so you might try - AFM SCT Tuner
Tune the car yourself with their help to at least get you a safe enough tune to be able to drive it to a dyno shop.
Otherwise you will likely damage the engine operating it untuned.