In a word, no. While a certain amount of positive rake is desirable to
improve front end loading/minimize airflow underneath the car, 0.5"
difference is considered ~optimum, with >1" undesirable, so sounds like
you're within tolerance. Different front/rear tire aspect ratios, tread
compounds, or construction can cause what you're experiencing though, just
like has happened to me when I replaced two of the Comp TAs with some
supposedly 'equivalent' Yokohamas on the front of the RX7. It went from dead
neutral to more oversteer than an early 930 Turbo, proving their claim of
having a bunch more grip. Moving them to the rear at higher pressure than
the fronts has balanced it out till I need to replace the TAs.
Sounds like you've got the opposite situation though, and due to tire
stagger you're limited to decreasing rear tire pressure to give them more
bite and probably increasing the fronts in combination to decrease theirs,
but won't be optimum for the fastest cornering speed. Still, for the street,
safety is paramount, so neutral to slightly understeering is best.
GM
----- Original Message -----
> After installing the tires on the rear of the car I feel as if the taller
tires have increased the tendency of the car to oversteer. Pressure 24 lbs.
front, tried 24 lbs rear and have since increased to 28 lbs in the rear. Car
darts and changes direction very easily but it feels as if the rear end is
going to change directions on me and go rear end first coming out of a turn
or direction change.
Is this typical Spridget handling characteristics?
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