Originally Posted by bsmcall
Mine runs pretty much the same (no wheelspin on 10mph 2nd gear rolling mash.)
There are days when hard first gear acceleration breaks loose everywhere and others where the car just really hooks up. I've got over 10k miles on her and it still a blast to drive, if only I could find the variable that keeps it toned down every once in a while . I has nothing to do with T/C because I generally leave it on.
I'm running 89 octane right now because the station was out of high test and I had to be somewhere. Come to think of it, it always runs strongest on Sheetz premium gas.
I have been running Sunoco Ultra 94 and of course the T/C was turned off when I did this. Today I tried the same thing but in 1st gear instead, starting with clutch fully engaged and rolling around 7 MPH (just under 1000 RPM in 1st), stomp the throttle and a bit of a hesitation, no wheelspin, then after about a second the car wants to move, and over 3000 it really MOVES (like full throttle should feel).
Originally Posted by IH2ton6cyl
Maybe Im expecting too much for a heavy car and since i owned a AMG mercedes in the past and other high performance cars. Im thinking of trading it in for a 2005 GTO and maybe the extra 50 hp will be more noticeable.
My other car is too embarrassing to list here, suffice it to say it's a severely underpowered egg-shaped economy car. I've never owned a car with more than 150 HP before (and the aforementioned egg-shaped car has less than half of that). I tried seeing what kind of deal I could get on an '05, but no dice. Early termination of a lease is not possible without taking a serious (more than double) payment increase.
Originally Posted by stucker
Thats strange. Sometimes I chirp the tires at 60mph on my 2nd-3rd shift. I hear that the ECU adapts itself to your driving style. When you baby it, it configures the engine to be conservative with power. And it doesn't open up until you hotrod it for a little while. I've heard other GTO owners complain of this also. Me, I have the opposite problem. I can't hook up.
I followed the break-in procedure in the owner's manual, which is pretty conservative driving. Maybe I just need to pull a fuse or the battery cable (?) to reset the ECU? I eventually plan on getting some "reversible" modifications such as ECU programmer and K&N intake. Will the K&N or other similar CAI hurt the low-end?
There are a few other issues such as spongy/low brake pedal on initial application (pumping helps) and a slight knocking/vibration noise at idle when warm (possible exhaust leak?) that I'm taking the car to the dealer for, and also to change the oil to Mobil1 tomorrow.
Thanks to all for your help and I'll let everyone know what happens @ the dealer.