[Christ]

Throughout my 5,000+ posts on this site, and the numerous posts on other sites of differing nature, one could probably derive that I didn't always drive the way I do now. In fact, the day after I put the turbo on my Escort, I took it to redline in 4th gear, which is an unknown speed (never bothered to look it up). I did this on a public highway, which I'm not proud of, but nonetheless, I still had steering enough to switch lanes without losing it altogether, and though it felt a little lighter in the loafers, I never had the thought that I was putting myself in danger of losing control due to front-end lift.

Same for my Civic. I've gotten pulled over in that car in excess of 100 MPH, been ticketed at 97 MPH. Again, never had a problem.

At ~120MPH, my Uncle's old T-bird (the one w/ the boat nose, not the newer bodies) had issues with steering, but was not uncontrollable. He says that at some point beyond 120 MPH, you could actually move the wheel for some distance without ever steering, because the front tires had no real contact w/ the road.

Assuming that car weighed about 4,000 lbs, and was equally distributed, that would be something to the tune of 2,000 lbs of lift at over 130MPH... someone scale that back down and figure out what it would be at 65-70...

Since aero concern increases with the square (or is it cube?) of speed, it's going to be a pretty insignificant number at highway speeds, especially considering that NYS's highway speed was something like 55 or 60 MPH back then, as opposed to 65 or 70 now.

So, you've doubled the speed, you've either increased the aero factor by 4 times or 8 times, depending on which answer above was correct.

If it's square of speed, it's 2*2=4 times more (which means about 500lbs of gross lift at highway speed, not considering whether he was even exaggerating)

If it's cube of speed, it's 2*2*2=8, which means that 2,000/8 = 250 lbs of gross lift on the front end, which is more believable, actually, given the shape.

Note that most of the lift on that car would have been due to a high stagnation point and the venturi effect compressing air under the nose, which looked like the hull of a flat-bottom boat.