'92 tranny in a '95?
OK- the first question you're all going to ask is 'why would you WANT to...' but hypothetically, could I put a '92 AWD tranny into a '95 AWD, and what else would I have to change out. TCU? Rear diff? Hollander says they DO NOT interchange, but anyone with real-world experience?
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Re: '92 tranny in a '95?
If it is a 92 SVX trans Dave, I don't see why it would not be OK. Diff ratio, TCU are the same.:)
May be not the best model as the latter ones had a lot of problems fixed. Harvey. |
Re: '92 tranny in a '95?
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The above is wrong, or the statement below, which has never been confirmed, is wrong.:confused: ---- Gearshift Maps, #189 http://www.subaru-svx.net/forum/show...=46581&page=13 The early ones 92 to 94, used a Normally open C solenoid. Later was 95 to 97. Used a Normally closed solenoid. Harvey. Wrong one way or the another. Which way, what way? :D |
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Dave is using all US transmissions. All the US models are interchangeable, they always used the NC solenoid. The boxes that we were talking about on the Gearshift maps were all VTD boxes, that did have the solenoid change. Harvey. |
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However, # 189 remains waiting answers, having as of old been side stepped.:) |
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Lee |
Re: '92 tranny in a '95?
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Post #189 of the Gearshift Maps, is my post. What was the question that I side stepped? Quote:
I have have no idea why Lee, us foreigners are not allowed to access those US part look-ups, so I can't tell if they changed the C solenoid for a later variation of the same solenoid. Does make it hard to sort these things out. Harvey. |
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#204 Are you stating that you now have the fuse switch, permanently installed ? #206. Explanation. |
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http://www.subaru-svx.net/forum/show...&postcount=201 The Aust and Japanese spare parts both say that the part changed, from the early Normally open to the Normally closed part. Yes I have the fuse in to release the clutch. as the program that Phil copied was for an early car. Phil has since done another EPROM using my 95 program, that I will fit, to fix the problem, and I can then pull the fuse and have the clutch work properly. Harvey. |
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It is not clear as to whether you actually have a normally close, or a normally open C solenoid fitted at present, i.e. when you are running with the fuse switch in place. Please advise in this regard as NiftySVX also requires this information.;) |
Re: '92 tranny in a '95?
A 92 trans will run just fine in a 95. I have a 92 trans in my 94. As long as you're not switching between FWD and AWD, or between ACT-4 and VTD, the trans is the same (except of course all the updates). The TCU between a 92 and 95 is slightly different but it is inconsequential to the operation of the trans. It is some minor and seemingly pointless logic tweaks if i recall.
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Re: '92 tranny in a '95?
Thanks for all the relevant answers!
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Re: '92 tranny in a '95?
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I decided to try fitting the fuse to see which way it would work, and found that is was giving the opposite results. Instead of locking the clutch, it turned it off, so I have been running it like that, till we could charge the EPROM program for the latter one. I can't detect any difference in the way the car drives, other than it's willingness to spin the back wheels in any slippery conditions. Although it is 36F/64R on the straight road, it still has the VTD function to change torque in corners by shifting torque to the front wheels. The tighter the corner, the more torque is applied to the front, so it still has the same ability to accelerate hard around tight corners, as it did with the clutch working. I believe the real function of the clutch, is the same as the clutch in the US transfer model, and that is to; 1. Stop wheel spin when it starts. 2. Apply the clutch in accordance with road speed, gear position and amount of throttle applied to prevent wheel spin. Harvey. |
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You state that --- “it still has the VTD function to change torque in corners by shifting torque to the front wheels. The tighter the corner, the more torque is applied to the front, so it still has the same ability to accelerate hard around tight corners, as it did with the clutch working." Just how do you contend that there can be a variation/change, increasing torque bias towards the front during cornering, when the clutch operation has been overridden by means of the fuse switch?:confused: My considerable experience, gained during successfully racing several front wheel drive cars, does not confirm the idea such that, “so it still has the same ability to accelerate hard around tight corners.” This I believe is simply advertising blurb to which you were no doubt exposed, created by Citroen during and post the mid thirties. In practice the front wheels lose traction in tight corners, the inside one or both, even in spite of an after market optional LSD, and well before there can be any useful advantage as you describe. Absolute understeer is the crucial inhibiting factor, which calls for a special driving technique. During sedate cornering no advantage can be detected, and even then attendant disadvantages are apparent.;) The real front drive advantage is the better use of available load space, rather than handling, which is in fact compromised, as is well proven via motor racing. However there is no denial that coping with the built in negative characteristics can be great fun, if you are skilled and appreciate what is involved. Hand brake turns are another issue.:D |
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Harvey. |
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