Dallas,
I see,,, I am still wondering "for engine cooling porpose" not ballast would a good radiator still work OK ?
It would seem that ballast is a by product, not the primary reason for the water tank? Or am I wrong, it would seem that to get the weight needed using water, it would take up more space in the car and be more difficult to place where you need it,,
I am no expert, so Just asking..
Charles