Join Date: Feb 2001
Location: The Sticks of Central TX
Re: 99 contour svt performance
while what you have said is true in some regards, you can only "force" so much into that opening without having to change out other components. It is simple mathematics actually....well for some of us...but the point is that yes you will get a better turn around iwth a larger maf per say you are also going to have to make more changes if you max out the airflow. too much is just as bad as not enough. Simple stated you can only push so much into the intake before you will have to change that out to accept the higher amounts you are trying to push in. By limiting it at the TB or the UIM or LIM you are just hurting yourself and wasting money.
But the real question is what is the limits of that engine....that I do not know, but needless to say just slapping on a cone may be a good solution in the short run, but then your PCM is going to relearn the amount of A/F ratio to make it as close to stock as possible. That usually takes around 30miles for the PCM to relearn the new curve and that SOTP feeling you had was just that for the limited time you have had it, eg the 30 miles.