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Old 10-17-2011, 11:16 AM
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Xpress
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Originally Posted by Xpress
+1....which rotor would be best for 17.5 NR tc?
Originally Posted by Fred Hubbard
Either the Green (TPM-R540AHT) or Blue (TPM-R540AST) will work for your application. I always suggest to drivers that they purchase both. Start with 35* static timing and around 4.0 to be safe with both rotors. I've found that the green rotor ends up being about 2 teeth taller (lower numerically) than the blue rotor. You want the temp to be around 135* - 140* after 3 mins and around 150* - 160* after 6 mins.
What is the determining factor on which to use? Size of the track or do the two option rotors just need to be tested back to back?
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