Is there any good write up on a 3.8 supercharged engine rebuild? Just purchased a '99 GTP with 170,000 miles on it. It runs well and is still powerful but I want alittle more. I've built a couple of AMC V8's to 460hp and ported heads etc etc.
I'm also wondering if anyone has opened up the chambers alittle in order to run more boost with a little lower compression?
I am thinking of going threw the motor and get it freshened up for more power. Such as a cam, intercooler, headers and ported stock heads and supercharger. Looking for 350 to 400hp if that's possible and keep the streetablity and killing the MPG to badly. I don't want to turn the motor nine million RPM to make the power. Would like to be able to run a mix of E85 or just straight E85 if I want.
I used to drive a '99 Grand Prix SE 3.1 and mixed unleaded with E85 almost 50/50 without a engine light. In the GTP I get a system lean code and I have backed off the E85 now. Is the 3.8 more picky or did someone mess with the tune?
