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Location:
Melbourne
Registered:
June 2004
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 how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Mon, 26 July 2004 06:34
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anyone know how the all wheel drive works on a 1997 rav4?
ill be hitting about 130 kw min at the wheels (with a supercharger)... will it be at the front or the rear? or all 4 wheels? not quite sure how the all wheel drive works... ive heard the front wheels go harder then the rear.
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Location:
Tasmania
Registered:
May 2002
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Mon, 26 July 2004 13:42
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I am not 100% sure, but I think they are full time 4WD, but with open diffs. The power will be at all 4 wheels when they are not slipping, but as soon as a wheel starts to slip you have next to nothing.
I think: Rear diff is open (get a LSD)
Center diff is normaly open, but you have a button on the dash to lock it. (Have it locked for offroad or hard/drift driving). The center diff is either open or viscous. No not realy the best 4wd systen to start with. Its all in the diffs. Get LSD for the rear, and keep the center locked, and that should best get the power to the ground.
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Location:
Melbourne
Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Mon, 26 July 2004 13:54
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some are front some are all... diff ones come out in the diff models on the 97... so confusing  . i dunno where the power is gona go... im gona do a test tomorow and jack it up on all fours, then see what spins.  best way to do it. Then at least i know its all four wheels that are spinning, then i can start thinking about the diff.. but still from a 90 kw car to a 140 kw car is decent power... for a rav4 hehe
if just the front spins... then ill sell the car and buy an all wheel drive rav... lol 
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Location:
Melbourne
Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Mon, 26 July 2004 13:55
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oh that diff lock is only on the man transmision mines auto, cant lock it.
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Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Mon, 26 July 2004 23:51
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the centre diff decides the amounts of front:rear torque distrigution and where it goes. they have a ratio between front and rear, be it 50:50 or 40:60(front:rear). i have no idea what a rav 4 has. try to find someone who does, look up a google search on toyota diffs and you minght find something.
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Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 00:05
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just searched google and found a bit of info:
If you have 4WD, a full-time system puts power down to all four wheels
at all times. Some refer to this as an "all-wheel drive" system, rather
than 4WD, but AWD usually refers to "reactive" systems that delay
transfer of power until after slip is detected. The RAV4 drive system
is most correctly called "Full-time 4 wheel drive." It is reported that
25% of the engine power is normally sent to each wheel.
- For automatic transmissions, there is a center coupling that
detects wheel slip and gradually locks the front and rear axles as
the slip increases. There are no driver controls for this feature.
- For manual transmissions, there is a center differential lock button
on the dashboard that manually locks the front and rear axles. When
engaging, an amber "C. Diff Lock" indicator lights on the dashboard.
When disengaging, there will be a beeping sound until the center
differential is fully disengaged; it may beep just once, or may
beep for as much as a full minute (seems to beep longer when cold).
Toyota recommends that it only be used only in difficult situations,
and that the center differential can be damaged if used improperly.
- For 4WD vehicles, there is an optional rear LSD available. In 1996
and 1997 model year, it was available only on standard transmission
models, but starting in 1998, the rear LSD is available in all 4WD models.
This device is called a "Torsen-type" LSD by Toyota, and is one of
the most sophisticated and effective types available. It automatically
detects wheel slip by either rear wheel and redirects the most power
to the wheel that is slipping the least. There are no driver controls
required for this device.
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Location:
Melbourne
Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:09
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thats not good... if i lose the traction to the rear left wheel its gona pump 130 kw into 1 wheel... lsd looks like the go... wonder if it will just cop wheel spin when i lose traction.
spose allwheel drive burnouts are gona be fun hehehe
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Location:
Tassie
Registered:
October 2003
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:14
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What r the chances of a roll over if u drift ?
Is it a full time 4wd or part time ? because u can buy lockers for the centre diff 4 alot of toyota 4X4s
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Location:
Melbourne
Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:21
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| Mookie wrote on Tue, 27 July 2004 17:14 |
What r the chances of a roll over if u drift ?
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none! it will either have adjustable suspension or air bag suspension. but with its height atm it would roll over.
gona be funny seeing a drifting rav4... lol
If i have problems with putting the power down to the wheels because of the traction thing then ill have a look at the diff locker and lsd. but i dont think its gona give me to much hastle.
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Location:
Tassie
Registered:
October 2003
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:24
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be careful then cuz in the crash test the driveshaft ripped open the fuel tank.
U gotta post pics of it please.
I've been trying 2 talk this girl in2 lowering her feroza and modding it but she won't 
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Location:
Melbourne
Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:36
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hmmm fuel tank ripping aint good im a smoker, think i will quit after i get the charger done.
yeah only reason im doing this to a rav4 is because the engine has a fair amount of potential ive seen the same thing done to my friends celica but with the front wheel drive version we hit about 160 kw at the fronts. People have turbo rav4's so i thought i would supercharge mine, dont think there are many out there.
no point posting picks yet im waiting for the mircotech ecu to come in so i can start working on it, its a big waiting list so once that comes in i cant get the charger mounted. so estimated 3 months based on me making 400 a week and i hardly work atm, wich sucks... i need a better job.
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Location:
Tassie
Registered:
October 2003
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:44
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How do u afford it ????
i can't afford a set of decent tyres
and i get almost twice as much as u.
I'd like 2 see pic of it drifting.
if u end up getting air bag suspension i'd b interested in how it handles cuz i'm looking at it myself.
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Location:
Colac, Victoria
Registered:
May 2002
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 07:48
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get in touch with rav Gt4
An option would be St185 GT4 rear diff ( torsen LSD )
get the centre viscous coupling off Gt4
Get Gt4 gearbox and teransfer case ..
At least then youll have a starting point ..
if you feel insane - just turf the supercharger option , install a 3sgte + a group A gearbox - and have a package like rav - GT4's capable of over 150 KW at the wheels
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Location:
Tasmania
Registered:
May 2002
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 10:41
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Delkor: You say your motor has about 95kw right? That is the power at the flywheel. If you were to measure your power at the wheels (any wheel, does not matter), you would have about 65kw. And if you boost your current motor up to about 140kw (at the flywheel), you will have about 90kw at the wheels. Something like that.
The RAV4 may have LSD's in it already, not sure. I will look it up.
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Registered:
May 2002
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Tue, 27 July 2004 11:08
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| Delkor wrote on Mon, 26 July 2004 16:34 |
ill be hitting about 130 kw min at the wheels (with a supercharger)... will it be at the front or the rear? or all 4 wheels?
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How do you know it will be getting 130kw min at the wheels if you dont know how this will be produced?
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Registered:
June 2004
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Re: how all wheel drive works on a 97 rav4? 130 kw at front or rear?
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Wed, 28 July 2004 03:24
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you'll get 25% of total power at each wheel. that's why you'll probably never break traction, until it has more more more power, like um 600+hp. how do you spell exaggerate? anyway, it won't drift well, if at all.
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