987687 Posted June 13, 2011 Share Posted June 13, 2011 I'm looking for something I can't seem to find. The gear ratios of a 98 GT auto transmission. I don't mean final drive, which is about all I can find. I've found gear ratios for almost every other automatic besides this one (and the OBW, which is the same). thanks. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted June 13, 2011 I Donated Share Posted June 13, 2011 If you can't find it on Google, the information doesn't exist lol -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 I'm not always very good at making google spit out what I want. I was hoping someone would have it bookmarked, saved to their hard drive, whatever. Not sarcastic answers. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted June 13, 2011 I Donated Share Posted June 13, 2011 I wasnt trying to be sarcastic. I searched google for you, and couldn't find it. I doubt anyone will know -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 well hopefully someone who takes autos apart will chime in on their personal findings, or something. I dunno. Just because I can't find the info doesn't mean it doesn't exist. Link to comment Share on other sites More sharing options...
subikid90 Posted June 13, 2011 Share Posted June 13, 2011 I gots the infos u needs lol http://members.iinet.net.au/~wearne/Subaru%20Transmissions%20Specs.pdf -Subikid90 1997 Legacy GT 5spd & EJ251 w/EJ25D heads ~10.5CR 1998 Legacy GT Limited waiting for EJ22T hybrid swap Link to comment Share on other sites More sharing options...
Osei Posted June 13, 2011 Share Posted June 13, 2011 Above list is manual boxes Perhaps this will answer your questions. If not contact Subaru directly http://en.wikipedia.org/wiki/List_of_Subaru_transmissions#4EAT http://www.reference.com/browse/List_of_Subaru_transmissions My search criteria was subaru auto transmission gear ratio. O. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted June 13, 2011 I Donated Share Posted June 13, 2011 I gots the infos u needs lol http://members.iinet.net.au/~wearne/Subaru%20Transmissions%20Specs.pdf thats not very useful to the orignal poster, but it is to me! lol thanks for posting that! bookmarked -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
eekay Posted June 13, 2011 Share Posted June 13, 2011 thats not very useful to the orignal poster, but it is to me! lol thanks for posting that! bookmarked Haha. Very useful to me too. Thanks! My 9.3 cups EJ22 makes me feel like my **** is 2.8 decimeters! Link to comment Share on other sites More sharing options...
johnegg Posted June 13, 2011 Share Posted June 13, 2011 i think the fsm will have it but i'd have to look to see. why do you want to know? generally speaking, ALL gear ratios are the same in a given year, outback / GT vs. legacy L / impreza. the fifth gear changes a little, occasionally, from one tear to the next, but not very much. subaru uses the same 4 speed auto trans for all of it's cars (in the late 90s at least). but they mate it with different diff ratios and / or tire sizes to change the nature it. that and the shift points in the trans computer. subaru is such a small car company, compared to GM or toyota, that using the same trans saves them money. and it works very well for the cars they make. again, why do you want to know??? Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 Well there's this this, a forum i'm actually on. But it gives more than one automatic gear ratio set. Neither of which are necessary what I have. Since mine is a 4.44 tranny it may be the same as the RS, but I need to know for sure. Oh, and I have a link to that manual chart in a more readable form. http://www.northursalia.com/techdocs/trannychart/trannychart.pdf Link to comment Share on other sites More sharing options...
Kennyfvholla Posted June 13, 2011 Share Posted June 13, 2011 On the chart, your trans is the same as the 2.5RS 4EAT and the 2.5 N/A Forester 4EAT. I can't remember how I originally found the ratio's for my car, and 96 LGT 4EAT, but when I did the math the numbers fit. And your car has the same transmission as mine, which means it has the same gear ratios. Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 Thanks! I had a feeling the 4.11 boxes would be the same, but wanted to make sure!! I thought about doing the math, but since the TQ doesn't lock except for in 4th gear, it would make it sort of impossible. Link to comment Share on other sites More sharing options...
Kennyfvholla Posted June 13, 2011 Share Posted June 13, 2011 It's actually not as impossible as you would think.. while using the formula to find speed you just have to insert the correct constant to calculate for converter slippage Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 But converter slippage is dependent on throttle input, is it not? Not trying to argue here, just wondering. Link to comment Share on other sites More sharing options...
Kennyfvholla Posted June 13, 2011 Share Posted June 13, 2011 Yes, that's possible. The one thing I could not do was account for varying throttle input, as I do not completely know how our converters work.. So I calculated for 100% throttle Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 True, snapshot at 100% throttle would make sense. I have a scangauge too, so I could just take a picture of it to get a snapshot of RPM and speed. Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 Reason I'm asking is, I want to make flappy paddle shifters for my transmission. So the gear ratios are important. There's a few very long and technical threads on USMB how to do it, but for OBD1. So I'm hoping I can figure it out on my car. Link to comment Share on other sites More sharing options...
Kennyfvholla Posted June 13, 2011 Share Posted June 13, 2011 I used my snap-on scanner to get a number for RPM and speed to use in my calculations, then just used the trans gear ratio, final gear ratio, and tire size to get the constant. And how hard do you think it is to make a paddle shifting setup?? I would definitely want have something like that Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 I should really just swap to a 5speed. but whatever. I really want to swap to a 5speed auto, put 4.44 gears in it (all 5speed autos are 3.54), and swap the 4th gear out of a 4speed as 5th.... but I dream on. Link to comment Share on other sites More sharing options...
Kennyfvholla Posted June 13, 2011 Share Posted June 13, 2011 ..swap the 4th gear out of a 4speed as 5th.... I would think that is impossible lol Link to comment Share on other sites More sharing options...
987687 Posted June 13, 2011 Author Share Posted June 13, 2011 It's possible in my budget-less mind My mind that does have a budget has an eg33 in the future though. So that'll be fun. Link to comment Share on other sites More sharing options...
subikid90 Posted June 13, 2011 Share Posted June 13, 2011 thats not very useful to the orignal poster, but it is to me! lol thanks for posting that! bookmarked Ah I though it had auto's too. I use it to cross reference tranny numbers -Subikid90 1997 Legacy GT 5spd & EJ251 w/EJ25D heads ~10.5CR 1998 Legacy GT Limited waiting for EJ22T hybrid swap Link to comment Share on other sites More sharing options...
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