goodall
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| posted on 17/1/07 at 08:12 PM |
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Anyone ever used a East-West transaxle in a awd locost?
Revisting the idea of awd again!
i scraped this as a possibility before because of the gearing being 1/3 what whould be needed, but is it even possible to do?
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goodall
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| posted on 17/1/07 at 08:12 PM |
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or in fact any self built car
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miegru
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| posted on 17/1/07 at 09:38 PM |
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I assume awd means all wheel drive; how do I see east-west? is that front back or side - side?
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goodall
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| posted on 17/1/07 at 09:43 PM |
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its also called transversely mounted, but by turning it around to north-south (longitudinal) and puting propshafts going to two diffs, one front and
one back you could have awd (yes, all wheel drive), was i wrong to asume on a car builders forum people would know these termologies, no offence
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JoelP
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| posted on 17/1/07 at 10:13 PM |
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you would end up double diffed and with a very low top speed. It has been done loads though to make offroaders etc where you want low gears.
Jees you even mentioned 1/3 speed, what are you asking again?!  You would need to make a 1:1 diff maybe
[Edited on 17/1/07 by JoelP]
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goodall
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| posted on 17/1/07 at 10:23 PM |
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i was asking if anyone had done it in a away that got a good top speed, like there not much point in building a sports car does 50mph, but it would
get to it very quickly if you could shift quickly.:L:L
were do you get a 1:1 diff out of?
[Edited on 17/1/07 by goodall]
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Liam
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| posted on 17/1/07 at 10:32 PM |
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It's a shame cos it' be a great way to make a 4WD middy. Could only get a 50:50 front/rear power split though and would need to get a
transverse setup with an LSD too, but plenty about. Nothing is gonna have a 1:1 diff though that I know of  . Would probably have to make em
yourself. Not tooooo horrible a prospect though with a quaife atb (or similar) some industrial bevel gears, bearings, and a case.
Liam
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goodall
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| posted on 17/1/07 at 10:44 PM |
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would it be possible to change the diff in the box to 1:1 by replaceing the crown wheel and the gear on the output shaft?
would also be nice to have a lsd or torsen alright or even just a lockable diff could come in handy
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minordelay
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| posted on 17/1/07 at 11:11 PM |
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You could get 1:1 by eliminating the centre diff and using a chain drive maybe. High maintenence though.
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NS Dev
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| posted on 18/1/07 at 08:21 AM |
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We did it on an offroader, but top speed was around 35mph, ideal on the 6x6 6ws vehicle we built but not much cop on a sportscar.
In fact ours used a north-south front wheel drive setup from an old turbo diesel passat, and turned that 90 degrees giving a VERY short (with respect
to the car) but very wide engine/box setup which fitted behind the seats in the cab.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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smart51
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| posted on 18/1/07 at 09:07 AM |
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could you use an XR4x4 as a donor? Or one of those 4WD fiat pandas? Or a freelander? Surely if you use a centre diff from an AWD vehicle, you can
use it in a seven. The big question is, will it fit?
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NS Dev
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| posted on 18/1/07 at 09:33 AM |
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XR4x4 is longitudinal, others are transverse (not that that matters! )
Certainly the XR4x4 makes the best transmission donor in terms of strength per £ spent.
You can easily lengthen the front prop and move the front diff forward away from being mounted on the side of the sump.
Have a look at a Dax Quadra
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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goodall
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| posted on 18/1/07 at 11:03 AM |
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yea but there few and far between about these parts the xr4x4.
Also it seemed like a good locost way around the probablem due to the abondance of east-west transaxles, i have about 5! and yet not a single desent
rwd box or diffs, just little wimpy things out of spitfires
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goodall
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| posted on 18/1/07 at 11:05 AM |
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oh yes i'm also planing on buying as little as possible, then once its going upgrade stuff and make it better, means that i'l always have
something to do at the car
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smart51
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| posted on 18/1/07 at 11:32 AM |
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quote:
Originally posted by goodall
yea but there few and far between about these parts the xr4x4.
That's what ferrys are for. I bet you could pick one up in scotland somewhere and drive it home.
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goodall
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| posted on 18/1/07 at 12:27 PM |
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bigest probelem is im only 16, so i dont think thats going to work very well, otherwise i would possibly do that.
also theres mot and tax and stuff like that at the port they might pull me over and see that the car would have neither
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rav
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| posted on 18/1/07 at 03:03 PM |
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Changing the ratio of the diff in the 'box is I suppose possible, getting 1:1 wouldn't be easy.
I would imagine making the pinion which drives the crownwheel of the diff bigger wouldn't be possible due to space restrictions, but maybe by
butchering the gearbox casing around the diff could be moved in closer to the pinion so that a smaller crownwheel could be used.
Or perhaps a robust chain drive from the gearbox output shaft tio the diff, or idler gears??
Either way, not easy, but probably do-able if you were stubbornly determined to use a transverse 'box...
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NS Dev
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| posted on 18/1/07 at 04:42 PM |
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Rav - just seen your project - you have U2u!!!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Liam
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| posted on 18/1/07 at 06:42 PM |
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Woah dude you've primed it!!!! Looking spunky!!
Aight,
Liam
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goodall
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| posted on 19/1/07 at 12:00 PM |
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would a chain beable to take the power. might sound like a dumb question to those of you that know the answer but i know nothing about chain drives
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NS Dev
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| posted on 19/1/07 at 12:17 PM |
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yes but they wear out fast.
You can get single chains reliable to 500hp and then you have duplex chains, but all will wear out if used for high mileages
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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goodall
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| posted on 19/1/07 at 12:24 PM |
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 thats some power, well inside a gearbox being well lubricated it would last a good while like were not going to be talking much more than
200bhp
time to remove a few diff cover plates on some gearboxes to look at how much space there is then
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