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Re: 4ksq Tires and Suspension Questions
> > Will handling increase greatly with wider/lower tires?
> Yup. Unless you buy some Kellys or similar junk.
Not necessary wider but stiffer sidewall and stickier compound.
> > Would any handling difference between th 205's and the 195's be noticable?
> Dunno. My 205-55s cost twice as much as the 195-60s, so I can't say.
It has to do with the tires grip/compound. The 205/55 are usually V
rated and not only have stiffer sidewalls they are also softer
compound (Treadwear 140 compared to 160 for 195's). The 195's are
usually H rated and therefore softer sidewall.
If you choose a 195/60 tire with exactly the same compound and speed
rating as 205/55 the difference in handling will be marginal unless
internal design of the belts is also different.
Most common mistake people make is they assume that a wider tire
makes larger contact with the pavement. That is not the case. Even
if you get 255's they will still have the same contact area as 195's.
Simple physics dictates the rules. The reason you want the wider tire
is that as the tire rolls under load the block of tread will be in
contact with the surface for shorter period of time (to get the same
area the larger width of contact reduces the length of contact along
the tire) on a wider tire there fore reducing it's chance to overheat
under braking and acceleration.
There are a lot of things to consider with tires and wider does not
automatically mean better. It usually does though.
You have to compare:
- Speed rating (Z,V,H,S,T with Z the highest)
- Traction (A,B,C with A as the best)
- Treadwear (140, 160 etc lower usually means stickier)
- Teperature (A,B,C with A as the best)
- And of course the seat of the pants factor how safe you feel with a
certain tire. Does it give you a warning before loosing traction?
1982 Coupe TURBO (473,150 km)
1984 4000s quattro (soon to be a rally car)
1986 4000s quattro (326,000 km)
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