Ok guys I just sold my 1970 Dodge Polara coupe (383) to fund my near future GTP build. I want to get as much power and speed out of my grand prix as I can without going into the engine. Here is my wild plan, let me know if I should maybe reconsider parts of it.
I have a 2000 GTP coupe with 165XXX miles on it. Only mods this car has is a 4" FWI, 3" bolt in downpipe with no cat, rear 02 emulator, alternator voltage booster. This car is not my daily driver so driver friendliness does not concern me. It is for summer cruising/racing only.
I plan on buying the
1. W-body store stage 2 intercooler kit with the intercooler fuel rails, and ported lower intake manifold.
2. 180* thermostat
3. aeroforce Interceptor scan gauge
4. W-body store modular pulley system
5. Tuned PCM from Overkill powersports
Ok so here are some of my questions,
1. With these mods what supercharger pulley size should I start out with? The description on the w-body store website for the intercooler says I can run a 3.0 without knock retard but I was thinking about going to a 3.1 to be safe. What do you think?
2. What else do I need besides the Intercooler kit, lower intake manifold, and modified fuel rails to install the intercooler?
3. How hard is it to install the aeroforce scan gauge and is anything else required to do so?
4. What type of gains as far as HP, 1/4 mile time, and 0-60 times should I expect with the above mods?
Thanks for any info fellow 3800 motorheads!
