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A GT-R with AAM resonated mid-pipe, generic 93 octane Cobb tune and HKS drop-in filters ran at the track rental last Friday at MIR. The first run was done (accidentally) without being in any R modes. The car ran 12.2X @ 116.1 mph. The car was cooled down for about 40 minutes and ran again with R R R (no launch control). It ran 11.64 @ 121.99 mph. On the next run (40 minutes later) the car ran 11.55 @ 122.17mph (no launch control). I wouldn't have thought that R configuration made that much of a difference on the traps. Any ideas why?
Tom
Tom