I asked that question here:
http://ecomodder.com/forum/showthrea...tml#post115739
and our resident tire geek told me why it wouldn't work.
Considering the number of gently crashed Insights with broken wheels, Honda made the full size wheels thinner than usual, and I'm sure the spares are more so.
If only they made a LRR tire in a more reasonable width, like 125mm wide.