Originally Posted by
projekt
car is 2004 srt-4. stage 0.
has a short ram intake
jmb upper pressure pipe w/ greddy type RS bov
jmb block off plate.
just installed my AGP wastegate actuator and turned the adjuster nut (towards the motor) almost all the way loose (just enough so the actuator arm is not about to come out of the hole)
and 1st gear im boosting 14-15lbs
2nd is 18lbs
and 3rd is 20+lbs.... i dont know exactly because i back off the throttle when it hits 20 because i fear of blowing the motor.
stock vacuum line setup.
whats going on? i do not want to blow my car up and i'd like to be boosting 16-18psi through all gears.
ive searched on the site and couldnt find anything....
what do i need to do?
When I had my SRT I had stage one, injen intake, and an adjustable wastegate. I had it on the dyno and at 17psi in 4th gear the A/F ratio went really lean (almost 15/1) over 5k rpms due to the stiffer wastegate not allowing it to bleed off boost the way the stock one does. I know several people are going to jump all over this because they are running higher boost than this without a problem but I wasn't comfortable with it being that lean. I would suggest getting bigger injectors and a VAFC or something of the sort to adjust the fuel. Pay for some dyno pulls w/ A/F readout and tune it to a safe level. Of course you can do whatever you want, but I just don't like guessing when it comes to something like this.