I just had Altered Atmosphere install the 3.12 pulley on my vortech and do the AAM ECU reflash. I did a before dyno and got 360.8 rwhp and 290.2tq - after I got a very impressive 405.1rwhp and 310.8 tq....thats a 44 whp gain!! With the weather being cold and all, I havent taken it to redline yet, A/F leans out high in the RPMs. I will post a dyno when it is emailed to me by the shop. I'm very happy with the results...smaller pulley was definitely a good choice. Im thinking about forged piston/rod set up as the summer approaches...I'm a little hesistant to drive the car hard now given the power output...forged internals will give me the confidence and safety to have even more fun with the car.

Thanks to Mike and Dave at Altered for their work!

Aaron

 

nice power increase.

 

aron...what exactly did AAM do when they flashed the ECU ? rev limiter , speed limiter , throttle 100%....any thing else ?

 

Aaron,

We should meet up after the first of the year. I'll give you a call. Also, if you want me to richen up your fuel curve at all with the R4 software, let me know. I've gotten pretty comfortable with it and have tweaked my fuel maps a bunch of times with positive results. Glad everything worked out with AAM!

Later Bro!
Steve