Eurocharged Canada did the tune today
Same place and dyno as uxchamp and sryan14610

2008 Vantage V8 Coupe Sportshift
K&N performance Filter, 200 cell performance cats, fuse 22 bypass, stock pipes and stock exhaust

Sorry no pic of original pull before flash....but roughly 320-324whp


After ECU tune: 356.9 / 0.8 = 446.125


Video of the last pull.
https://vimeo.com/94109558

Video of sounds of exhaust ... forward to mid video till the end
https://vimeo.com/92990975

cheers
Saturn

 

356 is 418hp.... still impressive, but not 450hp! basically, you flash the ECU, put on cats and get a newer 4.7 vantage!

 

I know, it's a old Bosch fla 206 but it's calibrate every year, it was in 2012(now i tested my car on a two news différents dyno)
There is:

 

so, I don't know what we are looking at here. what is the lower HP curve from? was that the "at the wheels" HP, and the higher one is calculated what would be at the flywheel of the engine? if so, why is the HP number so very low. 270ish rwhp is an indication that something is wrong with the car. it should be 320ish at the rear wheels. (roué) , and near 380 at the motor (mot) .


looks like the bottom plot is a coast down test , that they added to the wheels HP plot. it seems odd as that 50hp or so peak plot cant be a coast down in neutral test, as its too high, and cant be a compression coast down in gear, because its too low (that would be near 90hp). so, what the heck is it? either way, 270 at the rear wheels hp output on the dyno, any dyno is way too low for a vantage.

 

Saturn, awesome numbers!

That comes out to 435-445 depending if you used 18-20%. Old dyno dynamics dynos are typically 20% on the dot normally so I would believe 446 easily. Must pull like a freight train.

Glad to see so many positive eurocharged dynos on the forum, all the dynos are proof they are definitely the best tuner for these 4.3L astons

 

What torque did you get Saturn?