WJM Posted December 11, 2004 Share Posted December 11, 2004 So i laid out a stock 4WD EA82 flywheel, clutch disc and presure plate. Then...I took this WRX stock clutch...and compared. It WILL fit perfectly into the 4WD flywheel, and onto the presure plate perfectly, and the discs appear to be nearly the same thickness, and the splines are the same on both transmissions. You do the math! However, the pres plate and flywheel on the EJ stuff is entirely different than EAxx stuff....a comparrison on that stuff is next...!! Link to comment Share on other sites More sharing options...
RavenTBK Posted December 11, 2004 Share Posted December 11, 2004 So then, in theory, all the aftermarket clutch discs being offered for the WRX should just pop right in eh? Interesting discovery. Now I've got yet another dream cluttering up my thoughts.. hehe. Keep up the good work! Link to comment Share on other sites More sharing options...
WJM Posted December 11, 2004 Author Share Posted December 11, 2004 So then, in theory, all the aftermarket clutch discs being offered for the WRX should just pop right in eh? No theory. FACT now. So...YES Green for go... Link to comment Share on other sites More sharing options...
archemitis Posted December 11, 2004 Share Posted December 11, 2004 so the wrx disc slides onto the awd/4x trannies? and its an 8 7/8 disc... but nearly the same thickness is a big deal. nearly? your sayin no theory, but fact? dont say fact till your runnin it. or you actualy measure both thicknesses. not everyone is prepared to have their flywheel machined, and it would suck to have peepl buy clutches they cant use =] Link to comment Share on other sites More sharing options...
RavenTBK Posted December 11, 2004 Share Posted December 11, 2004 After thinkin bout this for a few minutes.. I'm wonderin exactly why this is a good thing for us old gen folks. Since its the same size and all, what mechanical advantage would it give us? So we have another option in selecting a clutch disc.. it doesnt matter too much if we dont have the pressure plate to put some more stick to it. Now the new gen kiddies have it good. Instead of having to pay $150 for a disc just because it says WRX on the package, they can pay $35 for an EA82 disc if they're cheap like me. Or am I talking out of my bum again? I dunno.. I need more caffiene so I can think this out.. Link to comment Share on other sites More sharing options...
WJM Posted December 11, 2004 Author Share Posted December 11, 2004 The disc IS a few MM more is total DIAMETER than the EA82, but it fits perfectly into the flywheel and pres. plate. The thickness is the two discs are nearly identical. i just need to find two NEW ones and measure them. This will give us old skoo folks clutch options, kevelar, ceramic, carbon fiber, and stuff like that....where as clutchnet is the only source ive seen for 'direct fit' clutches for the EA82/81/71/63 stuff... We can get a presure plate from them as well. Im still going to investigate ALL options of this EJ AWD clutch stuff into the EA82 4WD stuff. Link to comment Share on other sites More sharing options...
Legacy777 Posted December 11, 2004 Share Posted December 11, 2004 I will caution you guys on one thing. I don't know too much about the old gen stuff, but as far as the new gen stuff, there are two types of clutch setups. A push style and pull style clutch. All the turbo'd cars got the pull style clutch, while the n/a cars got the push style clutch. I don't know if you can differentiate by just looking at the pressure plate or not. here's the blowup for the turbo clutch setup. http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/MT_turbo_clutch_blowup.jpg I know some guys were looking into swapping the WRX clutch & pp onto a turbo legacy. Everything bolted up, except the wearing surface on the turbo legacy flywheel was slightly smaller then the WRX setup. So unless they did something extremely different for the old gen stuff, I would assume it would be similar. Link to comment Share on other sites More sharing options...
WJM Posted December 11, 2004 Author Share Posted December 11, 2004 Yes, I can tell by looking to see if pull/push actuation. I know the WRX/STi has that. The EA82 stuff is smaller...by a TAD on diameter, but the disc still fits into the flywheel perfectly. I know that Im not going to be using the new gen pres.plate/flywheel combo unless something very interesting comes up...and I ESPECIALLY wont be using the pull type...as our setups are push obviously. IIRC, the 2.5 RS and stuff like so, clutch discs and flywheels are interchageable...its the 6MT-STi stuff that gets iffy and supposidly not interchangeable with everything else. Link to comment Share on other sites More sharing options...
Caboobaroo Posted December 11, 2004 Share Posted December 11, 2004 GO WILL GO!!! Figure this out and we'll have more choices for clutches, especially when we start running 250hp like we're planning....mwahahahahaha now I might be able to have a clutch to hold my POWER!!! Link to comment Share on other sites More sharing options...
WJM Posted December 12, 2004 Author Share Posted December 12, 2004 I think im going to end up with a clutch net 3 put with stock pres plate...seeing as WRX stuff looks to be more $...but im investigating. Link to comment Share on other sites More sharing options...
PoorManzImpreza Posted December 12, 2004 Share Posted December 12, 2004 Yeh I had observed a while back that the discs were compatible, but our problem isn't the disc its the pressure plate..and while it is possible to machine the flywheel to accept the ej pressure plate I dunno how this will effect the ring gear as it won't be mounted on much material and whether the flyweel would have 2 be shimmed in order for the ej pressure plate 2 make contact with the throw-out bearing on the release fork 2 maintain correct stroke.. Link to comment Share on other sites More sharing options...
Marck Posted December 12, 2004 Share Posted December 12, 2004 Yeh I had observed a while back that the discs were compatible, but our problem isn't the disc its the pressure plate..and while it is possible to machine the flywheel to accept the ej pressure plate I dunno how this will effect the ring gear as it won't be mounted on much material and whether the flyweel would have 2 be shimmed in order for the ej pressure plate 2 make contact with the throw-out bearing on the release fork 2 maintain correct stroke.. The pressure plate shouldn't be a problem anymore since you can get one from clutchnet that is 50% stronger than the XT6 pressure plate for I think $225. And if that isn't enough, you can ask them to make you one of their Laser Cut diaphragms that is supposed to be much stonger. Its all about how much money you got in your wallet now. Link to comment Share on other sites More sharing options...
iluvdrt Posted December 13, 2004 Share Posted December 13, 2004 A little O/T here but if the output shaft is the same for the two trannies, does that mean an EJ mototr would be a direct fit onto the ea82t trans or are the bell housings different? Link to comment Share on other sites More sharing options...
WJM Posted December 13, 2004 Author Share Posted December 13, 2004 bell housings are slightly different, adapter plate needed. And some intereting work on the clutch/flywheel setup to get it going....from what I hear. Link to comment Share on other sites More sharing options...
baccaruda Posted December 14, 2004 Share Posted December 14, 2004 you have to make an adapter for the bellhousing that is 12mm thick to equalize the offset for the clutch setup. you use the EA82 flywheel with the holes drilled outwards a little to match the EJ crank. use your favorite EA82 clutch. there is a lot of info on this to be found in Retrofitting. look for subarino's thread. Link to comment Share on other sites More sharing options...
iluvdrt Posted December 15, 2004 Share Posted December 15, 2004 Oh I dont have means to do it, just wondering. Thanks. Link to comment Share on other sites More sharing options...
nkx Posted December 17, 2004 Share Posted December 17, 2004 this is a little OT. im still figurin out how all the little bits and pieces of cars fit and work together, but i think i have this figured out. the throwout bearing (4?) pulls the pressure plate away from the clutch when the #10 piece pushes on #5. is that the gist of it? Link to comment Share on other sites More sharing options...
Caboobaroo Posted December 17, 2004 Share Posted December 17, 2004 so Will, any updates yet? Its getting close to pulling the motor out of the RX and doing a manual swap and I don't wanna replace the clutch in a month after I get it done with my new hoodscoop, TMIC, TD04, WRX downpipe with hollowed cats, MS&EDIS setup, oh and the cams I'm gettin from ya as well...... might have some problems with it if don't hold to what you have.... Link to comment Share on other sites More sharing options...
WJM Posted December 17, 2004 Author Share Posted December 17, 2004 the WRX stuff WILL fit and work. I have NOT tested the holding power of any of it. Better be safe and go with the clutchnet stuff. If the price is right I will be getting a 3 puck SPT WRX clutch (the dealer performance stuff thats outragious in $...but I get it for ALOT cheaper... ). Link to comment Share on other sites More sharing options...
Caboobaroo Posted December 17, 2004 Share Posted December 17, 2004 so the WRX pressure plate will work is what you're saying and not just the disc? Hmmm time to work some major overtime. Mwahahaha intercooler and hoodscoop on their way right now and the turbo will be here the first of the year. Then the WRX downpipe will be installed and the major mods will keep coming! w00t!!! I'm excited!!! Link to comment Share on other sites More sharing options...
WJM Posted December 18, 2004 Author Share Posted December 18, 2004 so the WRX pressure plate will work is what you're saying and not just the disc? NO. Clutch DISC only. Pressure Plate will NOT work. Nor will flywheel. Link to comment Share on other sites More sharing options...
Snowman Posted December 25, 2004 Share Posted December 25, 2004 That would be awesome if we could put those cool new high-tech clutch materials in our cars, but I'm still wondering about one thing. I don't know much about clutches, but I would guess that these new ceramic and kevlar discs would need increased pressure to function, so wouldn't net a whole lot of gains without a beefed-up pressure plate. Is there a source for either a later-model plate that will bolt up or a way to modify our old school ones with heavier springs? Link to comment Share on other sites More sharing options...
WJM Posted December 25, 2004 Author Share Posted December 25, 2004 clutchnet makes a pressure plate of increased clamping. Kevelar needs more clamping to work right. The clutchnet stuff thats 'pucked' doesnt need more to hold more....i dont know the material tho. Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted December 30, 2004 Share Posted December 30, 2004 have a look at the part numbers on clutchnet,if im reading it right they should cross over quiet nicely which is good cos the one i have in at the moment does the slipping thing whenever i find a nice tight,windy gravel road, a 'rex clutch has just been added to my list of 'i needs' Link to comment Share on other sites More sharing options...
carfreak85 Posted January 2, 2006 Share Posted January 2, 2006 Well, I've just been over the Clutchnet.com, and in their online catalog they have no listing for any EA series cars. This sucks, my clutch is slipping and I want a performance replacement! I sent them an email to see if they still carry them and I'll let everyone know what I find out. Link to comment Share on other sites More sharing options...
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