 Gearing question on trannys. Planning to upgrade to a 03 WRX tranny, I have a 01 Forrester tranny in my 914 currently |
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| JRust |
 Feb 25 2016, 10:29 PM
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914 Guru  Group: Members Posts: 6,307 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest 
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My reason's are 2 fold. 1st my 01 Forrester tranny is either a 4.44 or a 4.10. Found a good deal on an 03 wrx tranny which has 3.90 for gears. I'd like a to drop my RPM's for highway cruising. I always get a little confused when it comes to how the gearing translate's to RPM's. 2nd reason is if I upgrade my motor at some point from my NA 2.5. My forester tranny isn't strong enough for a six or WRX motor. So while I get lower Rpm's now. It's more for down the road possibilities (IMG:style_emoticons/default/evilgrin.gif)
4.10-3.90 will drop my RPM's by how much? Say at 65 I'm at 3600 rpm's currently. 4.44-3.90 while drop my Rpm's by? |
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Posts in this topic
JRust Gearing question on trannys. Planning to upgrade to a 03 WRX tranny Feb 25 2016, 10:29 PM
matthepcat You would need to know your total tire diameter.
... Feb 26 2016, 12:28 AM jd74914
4.10-3.90 will drop my RPM's by how much? Say... Feb 26 2016, 01:33 AM matthepcat ^^ that works but not exact ^^....but probably goo... Feb 26 2016, 09:18 AM 76-914 What size tires are you running Jamie? That seems ... Feb 26 2016, 09:29 AM
JRust
What size tires are you running Jamie? That seems... Feb 26 2016, 05:53 PM mgp4591 I think about 12% or so...
But that's why I... Feb 26 2016, 09:41 AM shoguneagle Jaime, for your info and additional information I ... Feb 27 2016, 12:54 PM JRust Picked up the tranny. Turns out he already sold th... Feb 27 2016, 06:33 PM  |
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