No, what I meant by the "responsible person" thing was directed at the individuals who drive their cars on the road. Watkins Glen, although I've not been there, is a track and that is being a responsible person. As far as what Don R. from SAI was telling me, the problems appeared around the 140 mph area. Now I don't know about you but I don't think I'll be going that fast in an open top car any time soon.
What are the speeds you can see at WG?
To answer your question as t owhy the rearward leaning radiator would cause a "lifting" effect, again, the way it was explained to me, the air comes straight into the front and is directed by the tubes of the radiator. If the radiator is tilted rearward, the back of the radiator will be pointing towards the ground which directs the airflow through the radiator down towards the ground and the radiator to have an lifting effect. If the radiator is tilted forward, the front of the radiator is pointed to the ground which directs airflow up into the engine compartment and therefore causing a downforce on the radiator pushing the front end down
Again, this is just a theory and only a wind tunnel test could prove this true or false, but to me it does make sense.
John
John