Need for more steer?

I run the same steer in my 4 1/2 inch wheels car as I do my 4 3/4 and 5in cars.. Drill plays some what of a role as well as weighting

Cram,
More than likely you have a bent axle in the rear.......bent axle will drive front wheel off the rail causing you keep adding steer.

Couple things to try,

1) Take 2000 grid sandpaper and lightly sand edge of the front wheel (area that touches track) this will give more grip, therefore requiring less steer.

2) Use polish to polish tread surface on rear wheels, (make them slick and shinny)  this allows wheels to slide on track.....if car requires less steer, or car picks up time (speed) this would indicate a bad drill and or bent axles....

Hope this helps.

Thanks for clearing that up. I stand corrected.