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Thread: Xray T4 '13
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Old 04-27-2013, 09:08 PM
  #3322  
JOE SI
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Originally Posted by Car Breaker
stock rear spring is good for high grip track, if your local track is not that grippy, use a 2.5 on the rear.
2.7 in front and 2.5 rear xray 450 oil all around is what I had when I had my best run and fastest lap (3/10ths slower than the fastest lap of the day) on carpet.. Today I ran the stock progressive 2.3-2.6 in the rear and 2.5-2.8 progressive up front with xray 400 oil all around and it was perfect all day, at the start of the day it was like ice with little grip if any and I was amazed how the car wasn't all over unless I drove it too hard out of the corner
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