| will not cause tire slippage in first on a Stage III TT (350RWHP)?  I have BS RE-01R's which are one of the stickiest street-legal tires available but my tires slip in first.  Granted they're only 245 wide but my TT is hardly modified and wider tires are not necessarily better for traction.  While I love the Z, it's ability to put down power is quite low IMO. Regarding boost threshold, who's below or near 3.5K when going fast? Yes, the first three gears will be relatively sluggish.  For people who think their modified TTs are sluggish in the first three gears, this is a factor for them. Side note: Your posts are very informative but the animated GIF image is very distracting.
  
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