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#1
09-02-2006, 01:45 AM
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my scan:
ok now this was taken minutes after swapping the pulley so the fuel trims weren't set and the PCM probably had adapted to the new boost, moost people seem to agree that its a decent scan, but I was a little worried about the 12lbs. of boost, is that normal with a 3.5"?(though remember I have an '04 so we do usually see more boost with pulley swaps)
http://www.scandepot.net/viewscan.php?pk=2567
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2004 Pontiac Grand Prix GTP Custom K&N Fenderwell Intake , 180° thermostat, 3" Down Pipe, High Flow Cat, DHP 1.0 PCM, 3.5" pulley, 1.9 Ratio Roller Rockers, 90# LS6 Valve Springs, AL104s, ZZP Motor Mounts, 17" American Eagle 192s, Magnaflow tips.  not just babies whine 
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#2
09-03-2006, 05:04 PM
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Re: my scan:
Quote:
I almost positive our cars come stock with 9.5 lbs of boost. Maybe 9, but I know its right there. Your still probably boost stacking a little. Our cars are beasts when it comes down to boost. With a 3.4 I was right where you were. Our cars love to knock due the effiency of the blower along with our garbage fuel system. What kind od spark plugs are you using? If your stock I would go with Autolite 104s and gap them to about .054 -.055. I would change those plugs every 7000 miles. UI know I do. You will notice a nice difference every time you change them.
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 2004 GTP 3.2 MPS, FWI 9 inch K&N, ZZP motor mounts mandrel bent 2.5 inch exhaust w/ flowmaster 40s, resonator delete, 3" DP w/o CAT, MSD coil packs Autolite 104s, Autometer Boost Gauge, DHP Power Tuner, S&S Ceramic Costed Headers, W-BDY Store STG III IC, Hawk PADS Power Slot Rotors, 1.8 Roller Rockers, 90lb Springs, LQ4 MAF 14.5 stock w/ 2.2 60'
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#3
09-03-2006, 11:13 PM
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Re: my scan:
yeah i'm running the stock plugs right now, though my car is nearing 50k and I'm planning on changing the tranny fluid, filter, and changing the plugs and wires... from what I hear its best to just buy the GM wires as they are some of the best you can use, is this true?
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2004 Pontiac Grand Prix GTP Custom K&N Fenderwell Intake , 180° thermostat, 3" Down Pipe, High Flow Cat, DHP 1.0 PCM, 3.5" pulley, 1.9 Ratio Roller Rockers, 90# LS6 Valve Springs, AL104s, ZZP Motor Mounts, 17" American Eagle 192s, Magnaflow tips. not just babies whine
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#4
09-04-2006, 03:49 PM
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Re: my scan:
Quote:
Yes, GM wires are the best unless you want to go with the MSDs but IMO stick with stock wires and dont waste money on the MSD coil packs.
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2004 GTP 3.2 MPS, FWI 9 inch K&N, ZZP motor mounts mandrel bent 2.5 inch exhaust w/ flowmaster 40s, resonator delete, 3" DP w/o CAT, MSD coil packs Autolite 104s, Autometer Boost Gauge, DHP Power Tuner, S&S Ceramic Costed Headers, W-BDY Store STG III IC, Hawk PADS Power Slot Rotors, 1.8 Roller Rockers, 90lb Springs, LQ4 MAF 14.5 stock w/ 2.2 60'
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