wilcox Posted April 17, 2012 Share Posted April 17, 2012 so im figuring out what the gears are in the transmission, and in the rear end in my ea82 4wd manual transmission. does any body know? im sure many of us would like to know so we can modify are subes further Link to comment Share on other sites More sharing options...
Suba_GL_87 Posted April 17, 2012 Share Posted April 17, 2012 what your ratio? Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 17, 2012 Share Posted April 17, 2012 3.90 Link to comment Share on other sites More sharing options...
Numbchux Posted April 18, 2012 Share Posted April 18, 2012 Check the Ultimate Subaru Repair Manual. I posted a chart there with pretty much every EA8x transmission listed. Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 I did the work for ya too... and I was right... http://www.ultimatesubaru.org/forum/showthread.php?t=84798 Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 (edited) ok awesome! but what about the rear end? or is the final drive gear ratio the rear end? Edited April 18, 2012 by wilcox Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 Its both. The diff must match the gear ratio in the transmission or it wont work Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 ??? huh the diff cant have five gears, i dont get what your saying, are all of the transmission gears added? Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 ok i see what your saying, because it is a transaxle, the diff is in the transmission. so the final gear ratio 3.9 is what the front and the back diffs are, but then they also show the other gears Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted April 18, 2012 Share Posted April 18, 2012 Well... The 5MT on the FWD (2WD only) Models has very Long gears... that makes 'em to be at very Low RPM's on High Speeds, but I Don't know the Final Ratio... Sorry for Hijack the Tread but does anyone has that info? The Chart posted on the Above Link only covers the 4WD models. Kind Regards. Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 i just wanted to know the gears in my car witch is dr 4wd, and i found them. im curious to see what bigger tires will do to my highway speeds, and where it puts my rpm at what speed so i know where to drive in my torque range. witch is about 2700 to 3700 rpm Link to comment Share on other sites More sharing options...
Gloyale Posted April 18, 2012 Share Posted April 18, 2012 i just wanted to know the gears in my car witch is dr 4wd, and i found them. im curious to see what bigger tires will do to my highway speeds, and where it puts my rpm at what speed so i know where to drive in my torque range. witch is about 2700 to 3700 rpm Actually, the peak torque doesn't start until 4200 rpms. 2700-3700 is a good cruising range, but not really the heart of the "torque range" Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 Actually, the peak torque doesn't start until 4200 rpms. 2700-3700 is a good cruising range, but not really the heart of the "torque range" +1 I shift my car at 6K when Im going somewhere "hard" because it when I shift into the next gear (usually 2nd or 3rd) I start at about 4K and it just keeps on pullin! Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 and your car is an ea82?? Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 Yupp 1986 Subaru GL with weber carb on an EA82... even with a HG leak and I still get some pretty amazing pulls. Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 even though the redline on the tack starts @ 5ooorpm? i tried shifting at 5k once and you can hear it loose power and "whine out" doesnt that bother you that its bad to wrap it up that high in rpm Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 Im pretty sure mine starts at 6500... Ill check when I clean him out... But if I try to drive at 6K rpms (like hold it) I can feel the loss in power, but under hard acceleration, I feel it pull the whole way... could be the Weber that provides the extra boost... but soobies love to high rev... Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted April 18, 2012 Share Posted April 18, 2012 Usually I Shift at 4K, but I have Redlined my BumbleBeast during Speed changes on certain circumstances when accesing to a fast Highway is Needed or similar situations, that EA82 Weberized runs Awesome at Higher RPM's without any noticeable loss of power, and gotta Love that Boxer Rumble on Full Throttle! Redline Starts at 6,500 RPM's : http://www.youtube.com/watch?v=Pz56wdwKDrA Kind Regards. Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted April 18, 2012 Share Posted April 18, 2012 Look at the Above Posted Link, is a Video, the RPM's gets up to 7,500! Sorry for Hijack the Thread. Link to comment Share on other sites More sharing options...
92_rugby_subie Posted April 18, 2012 Share Posted April 18, 2012 Look at the Above Posted Link, is a Video, the RPM's gets up to 7,500! Sorry for Hijack the Thread. Ive shifted there by accident once... guess I thought I was driving an auto or something cuz I looked down and was at 7500 in 2nd gear and shifted into 3rd and remained on the gas I had no idea they could chirp tires into 3rd haha Edit: back on track, Wilcox, what set-up are you running? year/model and mods? Link to comment Share on other sites More sharing options...
wilcox Posted April 18, 2012 Author Share Posted April 18, 2012 thats nuts, im not going to wrap up over 5k any time soon. Link to comment Share on other sites More sharing options...
Fairtax4me Posted April 18, 2012 Share Posted April 18, 2012 Just want to say thanks for the link to the list of D/R trans gears ratios! Any way to tell a turbo 5 speed from a non turbo 5 speed by looking at it? Spline count, clutch type (push/pull), anything that clearly sets them apart? Link to comment Share on other sites More sharing options...
Numbchux Posted April 18, 2012 Share Posted April 18, 2012 I knew where the valves would float on all my EA82s. my '85 was about 6200 (tired motor was tired) the others were all more like 6800ish. not that bad for it. Link to comment Share on other sites More sharing options...
man on the moon Posted April 19, 2012 Share Posted April 19, 2012 Just want to say thanks for the link to the list of D/R trans gears ratios! Any way to tell a turbo 5 speed from a non turbo 5 speed by looking at it? Spline count, clutch type (push/pull), anything that clearly sets them apart? Turbo transmissions (D/R anyway) have 25 splines, non-turbo 23. Link to comment Share on other sites More sharing options...
wilcox Posted April 19, 2012 Author Share Posted April 19, 2012 +1 I shift my car at 6K when Im going somewhere "hard" because it when I shift into the next gear (usually 2nd or 3rd) I start at about 4K and it just keeps on pullin! i researched it and it depends, with stock components the peak torque comes in @ 3200rpm and peak power @ 5200 rpm. but that is also with the craptachi, so maybe the weber makes the difference. http://en.wikipedia.org/wiki/Subaru_EA_engine Link to comment Share on other sites More sharing options...
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