May 21, 200421 yr How strong are the subaru 5spd FWD trannies? I am thinking of doing a project and i would want to use a FWD 5spd trannie, so i was wondering what is there torq limit. Also is there a hydralicly operated FWD trannie or are all of them cable operated?
May 22, 200421 yr How strong are the subaru 5spd FWD trannies? I am thinking of doing a project and i would want to use a FWD 5spd trannie, so i was wondering what is there torq limit. Also is there a hydralicly operated FWD trannie or are all of them cable operated?What do you mean by hydraulically operated? I think all Subaru manual trans. have the gear shift attached to metal linkages which are attaced to the shift forks. Anyone have one apart?
May 22, 200421 yr I think he means the clutch operation...the WRXs are hyd. where as my GL-10 is cable operated.
May 22, 200421 yr How does the case flex? It's on mounts. I have never heard of a problem with a subaru manual that wasn't driver error. But then again, I haven't looked at any TSBs..just going on what I hear.
May 22, 200421 yr Author Yeah I meant is it cable operated, or hydraclily operated. Does any one know how power it can hold, the only thing iam kind of weary about is the front diff sence all the power is going to be going through it instaed of of half. Then again i never heard of a front diff breaking on a 5spd before. So hopefully its strong.
May 22, 200421 yr Yeah I meant is it cable operated, or hydraclily operated. Does any one know how power it can hold, the only thing iam kind of weary about is the front diff sence all the power is going to be going through it instaed of of half. Then again i never heard of a front diff breaking on a 5spd before. So hopefully its strong. Are you asking how much torque the clutch will hold without slipping, or how much torque the trans. will hold without grenading? The method of actuation of the clutch (be it cable or hydraulic) doesn't enter into it. How much torque are we talking about?
May 23, 200421 yr Author Genrally the hydralicly opertated trannie that subaru made are stronger than the cable operated ones. I want to know how much power the trannie can hold before it would grenade. Or how much power would it relibley hold. I know flex in the trannie case is a problem, subaru rienforced the new 5spd case pretty much throught out there line up.
May 23, 200421 yr How does the case flex? It's on mounts. I have never heard of a problem with a subaru manual that wasn't driver error. But then again, I haven't looked at any TSBs..just going on what I hear. I don't know HOW the case flexes but it does, and that = tranny failure. Also I do believe that it is driver error that causes the case to flex enough to damage stuff.
May 23, 200421 yr Tell us more about the project. I'm guessing it's a mid-engine rear-drive kit car of some sort. Why else would you want a FWD trans.?
May 23, 200421 yr I don't know HOW the case flexes but it does, and that = tranny failure. Also I do believe that it is driver error that causes the case to flex enough to damage stuff. I could see bucking the thing enough so the tranny jumps off the mounts. I recently jacked my motor for an oil pan job and didn't see any bolt for a mount on the crossmember. I guess it's lucky they do flex, and not break or crack, given that they're aluminum.
May 23, 200421 yr Author Tell us more about the project. I'm guessing it's a mid-engine rear-drive kit car of some sort. Why else would you want a FWD trans.? Yeah thats pretty much it, i would probley use a eg33 to power it. Does any one who strong the FWD trannie is???
May 23, 200421 yr Strong. lol You are'nt taking an EG33 and putting it in the back on an RX are you? Thats my plan. *woops, let the cat out!*
May 24, 200421 yr The guys over at Easy Street (talk to Ali if you can) should know HP tolerences of Subaru trannies, btw they are running an SVX tranny /\/\ /\ \/
May 25, 200421 yr let us know what you hear, and if you know the company that made their gearset. /\/\ /\ \/
May 25, 200421 yr well look at it this way. Subaru uses the stronger hydro clutch/tranny setups for its turbo cars, they also used a 4eat tranny which was as strong as the legacy turbo in all the svx's. There was never a hydro fwd tranny so they can't be that strong.
May 25, 200421 yr Author I dont know about that, lots of the trannie failures are partialy or complety caused by the extra stress of the AWD. So maybe the FWD trannie may be pretty strong. The weakest point in the FWD trannie would seem to be the front diff, did subaru upgarde the front diff from the AWD trannie?
May 26, 200421 yr Why then would subaru make a hydrolic operated clutch/tranny for only the turbo cars then?
May 26, 200421 yr Author Subaru never made a new gen turbo vehicle with FWD. Alot of the stress on the trannie is put on by the AWD.
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