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Old 12-23-2009, 10:59 AM   #12
Scooby Specialist
Member#: 101117
Join Date: Nov 2005
Chapter/Region: NESIC
Location: Dorchester MA / Sunapee NH
2009 WRX, 06 OBW 3.0
Tiger 1050, WR250R, TW200


Originally Posted by gtboost View Post
pilot exalto a/s is probably one of the worst tires to choose for a minivan. you went from a snow tire to a performance all season tire.... no wonder you hate it in the snow. there are tons of better options for a/s tires for a minivan.
I picked it because I've had good luck with Michelins in the past, and it seemed to have the best snow/ice performance of the mainstream A/S tires offered at Costco.

It's not the end of the world: we only get 4-5' of snow a season in Boston and they are quieter and smoother-riding than the WR's. There is a gulf between snows and A/S's. From the C&D test:

And that brings us to our next test: full stops with ABS engaged. Here again the snow tires dominate, stopping from 40 mph in 156 feet, some 28 feet shorter than the all-season tires' 184-foot performance. Meanwhile, our summer tires skate to an ultimate distance of 351 feet, the ABS actuator rattling for all it's worth the whole way.
And here's why the guys at TON refer to A/S as "no season"

Acceleration testing provides the first surprise, as the all-season tire trails the pack with a 15.4-second 0-60 run. The snow tire's 12.7-second effort for 2nd place is significantly better, but the summer tire tops them all with an 11.9-second performance, over 20 percent quicker than the all-season tire. In fact, the all-season tire began encountering trouble near 40 mph, where it had been only 0.4 second behind the summer tire's performance when hydroplaning and wheelspin paid a visit.

Things are much the same when braking from 60 mph. The summer tire's 157-foot stop is the shortest, the snow tires come up 2nd at 181 feet and the all-season tires lag further behind in a flurry of ABS activity on the way to a distance of 215 feet, some 58 feet longer than the summer tire.

On the wet skid pad the summer tire smokes them once more, even delivering a little tire squeal as it churns out 0.81g — a figure many car-tire combinations can't match on dry pavement. The winter tire trails with a 0.71g run characterized by noticeable squirm, presumably from the side loads acting on the numerous sipes in its snow-biased tread pattern. That said, it still bests our all-season tire, which once again brings up the rear with a disappointing 0.65g showing.
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Last edited by Garandman; 12-24-2009 at 04:15 PM.
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