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i notice off the line i spin the tires a whole lot. thats with 20" slicks. maybe i just suck at launching. so will a 245/40/17 work for my car? some guy is gonna give them to me for free cuz he crashed his 00 celica and needs to part with them soon. i know that they are 24.6 inches tall and may fit, but will it help my cornering and launching?

 
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thats with 20" slicks?????????? whaaa?


any way 245/40-17 More then likely will not fit. its to wide and will rub the shock and possibly the fender...

225 is about as wide as we can go.

 
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the slicks are 20x8x14 mickey thompsons. i got them off ebay

 
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were they brand new when you got them?

 
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nope. 80 percent of "slick" left, about 10 passes on them from the previous owner.

 
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that may be part of the problem......


1. tires get harder as they age
2. tires get harder every time they are heat cycled (heated then cooled like in a pass)

so the tires just may be past their usefull life as a race tire.. Even though they probably have plenty of tread left. Its very common, especially with soft rubber found on race tires.

Example, I autocross on a set of falken azenis. the tread on them will easily last one and a half to two seasons of use use. however the "stickyness" of the tire is well used up by the end of 1 season...
Plenty of actual tread left, but the rubber is just not sticky.

 
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with those slicks on, what do you think of a 10.004 8th mile time at 73.76 mph on a 2.415 60 foot time? thats close to the crx times since modified my tq converter to 3200 stall and got my p/p on dec 29

 
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but then I dont know how many passes to expect out of a drag tire.. Cause I dont drag race.