Postby Hasbeen » 18 Aug 2009 12:21
What tyre profile to use depends on your usage. Don't forget that
our cars are a 70s device. They were designed long before the
current fashion of ultra low profile tyres was even thought of, let
alone fitted to cars.
If your 8s suspension is any where even near stock, it will perform
much better, in average conditions, with a reasonable large bag in
the tyre.
My 8, with 205 55 15s is very good, on a billiard table, or at least
very good road. They have improved the handling quite a bit. On
anything with a bit less than an a good surface my 7 FHC with
185 70 13s is much more sure footed, & once the road gets a bit
wavey, with a few patches, the 7 is actually qiucker.
The 7 will absorb quite a bit of poor surface, before it's composure
starts to get ruffled, & in fact it's an absolute ball on gravel.
Some of this is, I'm sure, due to the FHC stiffer body.
I have not driven a 7 with 17s, with ultra low profile tyres, but I
doubt I'd want to, in my country area, with it's less than great
roads.
If your are talking about an 8, DHC, I doubt the body is stiff
enough to take any advantage of low profile tyres, unless you do
qiute a bit of stiffening, with some form of roll cage. With 280
BHP, & the 15s, I have exceeded the capacity of the DHC body to
absorb punishment.
Hasbeen
