I have a 2004 GTP Comp G, basically stock except for a K&N Air Intake.
I just cleaned the filter the other day and was able to get up to 125mph. Around there it started hitting top speed due to air resistance = engine hp to wheels, though I feel that if I had a little bit more room to drive maybe it could have pushed 1-3mph higher.
Before I cleaned the filter it topped out at 123mph, and while still having room to accelerate, it couldn't push past 123mph.
Both runs I never hit the governor, just the engine couldn't push any harder. I've felt the governor on a previous car, so I know what that feels like. I'm pretty sure the governor for my car is the stock 142mph.
Has anyone been able to get to the governor (142mph) without some major modifications?
Also, anyone have any idea how much HP and top speed I could get for getting the computer tuned?
Keep in mind this is just the supercharged 3.8L with a K&N Air Intake. Everything else is stock. Though I will be replacing the spark plugs & wires soon. I got about 76K miles on the car right now.
