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#31
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Impreza 2.2l L models:
Automatic transmission gear ratios: 1st - 2.785 2nd - 1.545 3rd - 1.000 4th - 0.694 reverse - 2.272 final drive ratio - 4.11 Manual transmission gear ratios: 1st - 3.545 2nd - 1.947 3rd - 1.366 4th - 0.972 5th - 0.780 reverse - 3.333 final drive ratio - 3.90 Impreza 2.5RS models: Automatic transmission gear ratios: 1st - 3.027 2nd - 1.619 3rd - 1.000 4th - 0.694 reverse - 2.272 final drive ratio - 4.44 Manual transmission gear ratios: 1st - 3.545 2nd - 2.111 3rd - 1.448 4th - 1.088 5th - 0.780 reverse - 3.333 final drive ratio - 4.11 The 2002 2.5RS (new body) 5MT uses slightly different gear ratios: 1st - 3.45 2nd - 2.06 3rd - 1.45 4th - 1.09 5th - 0.78 axle ratio (final drive) - 4.11 WRX 2.0l models: Automatic transmission gear ratios: 1st - 2.785 2nd - 1.545 3rd - 1.000 4th - 0.694 reverse - 2.272 final drive ratio - 4.11 Manual transmission gear ratios: 1st - 3.454 2nd - 1.947 3rd - 1.366 4th - 0.972 5th - 0.738 reverse - 3.333 final drive ratio - 3.90 Note that the WRX uses a 1.1:1 stepdown ratio in the center diff, so the front axle ratio is 3.90 and the rear differential uses a 3.545 (just like the SVX). 3.545x1.1=3.90. The 3.545 ratio is actually an infinite 3.54545454545...etc. Here's a spec sheet on the Impreza transmissions: So, to summarize, yes I was wrong on the RS final drive ratios. I was confusing the RS PhaseII EJ25 SOHC final ratios with the Legacy GT PhaseII EJ25 SOHC final ratios. I am known for occasional idiotic lapses in memory. The 2.5L Legacy GT had a 3.90 final drive on the 5MT and a 4.11 final on the 4EAT. Last edited by Porter; 04-05-2003 at 10:06 AM. |
#32
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Here's a list of speeds attained in gear at specific rpms:
Impreza 2.5 RS 5MT, stock ratios and final drive (4.11) Code:
rpm 1st 2nd 3rd 4th 5th 1000 5.238 8.774 12.494 16.628 23.194 1250 6.547 10.967 15.617 20.785 28.992 1500 7.857 13.160 18.741 24.942 34.791 1750 9.166 15.354 21.864 29.099 40.589 2000 10.476 17.547 24.988 33.256 46.388 2250 11.785 19.741 28.111 37.413 52.186 2500 13.094 21.934 31.235 41.570 57.985 2750 14.404 24.128 34.358 45.727 63.783 3000 15.713 26.321 37.482 49.884 69.582 3250 17.023 28.514 40.605 54.041 75.380 3500 18.332 30.708 43.729 58.198 81.179 3750 19.642 32.901 46.852 62.355 86.977 4000 20.951 35.095 49.976 66.512 92.776 4250 22.261 37.288 53.099 70.669 98.574 4500 23.570 39.481 56.223 74.826 104.373 4750 24.879 41.675 59.346 78.983 110.171 5000 26.189 43.868 62.470 83.140 115.970 5250 27.498 46.062 65.593 87.297 121.768 5500 28.808 48.255 68.717 91.454 127.566 5750 30.117 50.448 71.840 95.611 133.365 6000 31.427 52.642 74.964 99.768 139.163 6250 32.736 54.835 78.087 103.925 144.962 6500 34.045 57.029 81.211 108.082 150.760 6750 35.355 59.222 84.334 112.239 156.559 7000 36.664 61.415 87.458 116.396 162.357 Last edited by Porter; 04-05-2003 at 10:04 AM. |
#33
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New Foresters are 4.11 for the 5MT and 4.444 for the auto, just like the 2.5RS.
The new 2.5L Forester Turbo (2.5XT) WILL use a 4.444 rear ratio with the 5MT according to my source at SOA. Last edited by Porter; 04-05-2003 at 10:56 AM. |
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