svynx Posted March 16, 2013 Share Posted March 16, 2013 Simple question to those of you with this particular vehicle. All I need to know is MPH vs RPM in 4th and 5th gear. Thanks Link to comment Share on other sites More sharing options...
iNVAR Posted March 17, 2013 Share Posted March 17, 2013 For 5MT 2005 LGT: 1st: 3.166 2nd: 1.882 3rd: 1.296 4th: 0.972 5th: 0.738 Final drive: 4.111 215/45/17 wheels/tires 4th gear: 4KRPM = 73.314 MPH, 3KRPM = 54.986MPH 5th gear: 4KRPM = 96.560 MPH, 3KRPM = 72.420MPH Link to comment Share on other sites More sharing options...
svynx Posted March 17, 2013 Author Share Posted March 17, 2013 Thank you. I'm swapping transmissions from the 05 LGT into my 02 WRX, along with the 4.11 final drive. I'll be running a 255/40/17 for most of the year and was curious how much higher my highway rpms are going to be. Link to comment Share on other sites More sharing options...
iNVAR Posted March 17, 2013 Share Posted March 17, 2013 I have a spreadsheet at home to do these calculations. I'll post it up later for you to use. You can adjust all the numbers to your heart's desire. Link to comment Share on other sites More sharing options...
iNVAR Posted April 14, 2013 Share Posted April 14, 2013 Oh man, I totally forgot to post my spreadsheet up... later tonight Link to comment Share on other sites More sharing options...
svynx Posted April 16, 2013 Author Share Posted April 16, 2013 No biggie. I actually forgot about posting this question. I did some research and found a few things, but I'd still like to see what you have. Link to comment Share on other sites More sharing options...
iNVAR Posted April 16, 2013 Share Posted April 16, 2013 http://www.crimetank.com/misc/carstuff.xls tweak the numbers as you see fit. just something i was messing with for useful calculations. the bottom section is something i was working on for treadwear being translated into differences in rolling circumference Link to comment Share on other sites More sharing options...
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