Whats the most psi someone has ran on a stock 7afe motor?, Whats the most psi someone has ran on a stock 7afe motor? Options

[rapid36]

Hi guys im thinking about going turbo, i have a stock 7afe motor, im currently running a 3 row all aluminum radiator and a big transmission oil cooler with an electric fan on it. I have a brand new torque converter inside the transmission. I got about 140k on the motor and tranny. i also have 440cc injectors (not installed), got a cheap aem piggy back (not installed). i will go have it dyno'd and tuned by a shop if i do get a turbo setup but im curious what 7afe stock motors can handle (my guess is not very much). i dont want to kill the motor just want to bump up the hp and tq as much as i can without going forged.

[lagos]

It's 9.5:1 if memory serves me correctly.

thats not very high compression i would imagine i could get away with 12psi pretty easily if i had a good tune on it. however im still unsure if the tranny will be able to handle it. doesnt anyone know how much an auto tranny can hold as far as HP goes for the 7afe?

Also ive been thinking about re doing the valve seals on the car, seems like that is a problem recently on the car, so i was gonna put in a more agressive cam, would this be a good idea for my turbo idea down the road?

The compression of the motor doesn't have a lot to do with it. The real problem is in having an ecu where you can adjust the timing map. Most piggy backs can't do this, and you're stuck running 20-30 degress of timing advance under boost, where as timing under boost should be in the 15 degree range. At 30 degress of timing advance, even 7 psi is bad.