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Old 03-06-2014, 03:02 PM   #80 (permalink)
RyanWest
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Location: Tamp, Fl
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Quote:
Originally Posted by 1slow370 View Post
well it is still lower since the factory is 11:1 but as I said that ratio is best suited for use in the 550-750 range. anything more than that and you are going to want to go down to 9:1 for increased durability the dynamic CR at 10:1 and 17-18psi(700hp) is 12.5:1 that is the same as 20.5psi on a 9:1 motor
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