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Old Mar 14, 2009 | 11:25 AM
  #17  
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sherwood
I missed Sean
 
Joined: Aug 2004
Posts: 11,285
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From: Fairfield/Bridgeport CT
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just remember going to the GSR ratios you're going to loose some on your gas mileage

Originally Posted by pslsnakes
Hmm.. that's wierd. At 73mph (confirmed on GPS) in 5th gear my GSR is at 4k, but my speedo says 80 or so.

I think a GSR or even a B16 tranny would be great for that motor. The only time an LS tranny is really used is when you have 500+ whp and you need the longer gearing so you're not blowing them off at 40mph and up.
tire/wheel size can affect speed, this is probably amplified in that case by tire warp that can occur at high speed
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