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svynx 03-16-2013 07:00 AM

2005 lgt 5mt
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

iNVAR 03-16-2013 09:22 PM

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

svynx 03-17-2013 07:05 AM

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.

iNVAR 03-17-2013 07:42 AM

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. ;)

iNVAR 04-14-2013 10:14 AM

Oh man, I totally forgot to post my spreadsheet up... later tonight :)

svynx 04-15-2013 07:54 PM

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.

iNVAR 04-15-2013 08:39 PM 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

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