Bob,
This is interesting actually...
I have had my road TR4A traveling in excess of 95mph. I will have to
exercise my right to the 5th Amendment if you ask where! ;-)
I found the steering becoming very light and assume that if I had tested a
corner at this speed that massive understeer might have resulted. I assumed
this was aerodynamic lift caused by the shape of the front lower valance
panel.
A spoiler or air dam would seem to help if this is the effect. Most of the
SCCA racer types that I have seen have an air dam vs a spoiler. You might
weld a small 'lip' along the bottom length of the valance panel if you
didn't want to alter the vintage look. The lip would become a gravel scoop
if you went off course!
Since Joe has thrown down the gauntlet, you can install your air dam and go
kick butts and take names!
Cheers,
Brad
62 TR4 - Without air dam
I've been told that the front end of my car is lifting, and the
bonnet is distorted by the air. I know I need to close off the air entry
better, which will involve pinning the bonnet at the front and some more
grill blocking, but what about air dams and spoilers
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