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jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 28814
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Re: Is the X-Trail a real 4WD


I say electronically which means that when the LOCK button is pushed in the dash, the ABS/4WD sensor does the rest and engages the rear diff when required to give torque to the rear wheels at a certain ratio which is split between front and rear wheels. (I can't remember the exact ratio split, but it's mentioned somewhere here on the forum).

You may want to check %7Coffset=60]THIS thread where the guys have created a live display of torque going to the rear wheels.

(Kev: you might wanna update the dead pics in your DIY guide in that thread)

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8/Jul/2009, 3:29 pm Link to this post Send Private Message MSN Blog
 
basshead Profile
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Date Registered: 02-2004
Location: Panania, Sydney
TOTAL POSTS: 2852
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Re: Is the X-Trail a real 4WD


quote:

jalalski wrote:

You may want to check %7Coffset=60]THIS thread where the guys have created a live display of torque going to the rear wheels.



That reminds me that I had intended to do some videos of showing the 4wd-display output for different driving conditions...



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Rich. X-013(c)
'04 S2 ST Auto. Nudge_roofracks_tow_tints_Lightforce_GME_YokoGeoA/T-S_TBS_bashplate_50mm-spacer-lift
Click here to see >300MB of photos and videos All For His Glory.
8/Jul/2009, 6:13 pm Link to this post Send Email PM   Send Private Message MSN Yahoo Blog
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5167
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Re: Is the X-Trail a real 4WD


quote:

jalalski wrote:
(Kev: you might wanna update the dead pics in your DIY guide in that thread)



Done.
Thanks Jalal.

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Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
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9/Jul/2009, 11:57 pm Link to this post Send Email PM   Send Private Message Blog
 
Wiz Au Profile
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Date Registered: 06-2017
Location: Canberra, ACT
TOTAL POSTS: 126
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Re: Is the X-Trail a real 4WD


Was thinking today when I took the T30 on a little offroad test so I can compare 4WD capability with my R50 Parhfinder, if the rear wheels only drive when in Auto or Lock modes, could you permanently lock the rear diff? This would greatly enhance the traction of the vehicle in wheel lifting/wheel spinning terrain?

If the rear diff is essentially disconnected unless being sent power in Auto or Lock, why not just permanently lock the rear diff?

When you go round a corner on the road, I'm thinking the disconnected tailshaft would allow the rear wheels to turn at different [sign in to see URL], maybe not. Need a diff expert to chime in.

---
2004 T30 series II, Ti for now.
JRR50 Pathfinder, QD32ETi Turbo Diesel, with 'lots o fruit'.
Eventually looking for a white or silver 2011-2013 T31 TL (Diesel) to "pimp out".
19/Aug/2017, 7:33 pm Link to this post Send Email PM   Send Private Message Blog
 
Wiz Au Profile
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Date Registered: 06-2017
Location: Canberra, ACT
TOTAL POSTS: 126
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Re: Rear diff locking


OK, I've had a think about this and I was wrong.

In order to go around a corner on dry pavement/bitumen, the outer wheel needs to turn more than the inner wheel, and with the rear diff axles 'locked', this can't happen, even with the tailshaft 'disconnected'.

The best solution is something like the cam LOKKA product which is normally locked, but when turning a corner on pavement, the wheel that is being "driven" by the pavement and wants to turn faster, is unlocked by the cam mechanism and allowed to turn faster, with any drive being sent to the inside wheel. (In the case of the Exy, unless you're in AUTO or LOCK, there is no drive being sent in 2WD mode.)

However off-road, in LOCK, both wheels are being "driven" by the tailshaft, so the cams stay locked in and you have a locked diff.

EDIT: Found the ]Diff Locker Thread ...going through it now.

Dunno if there is such a product available for the Exy? If the same Diff is used in any Skyline, there is usually something around due to the 'Drifting crowd' demand. ie. The front diff in my Pathfinder is the same model as a Skyline REAR diff, and there is a Air Locker kit available for it due to the Skyline demand more than the Pathfinder 4WD demand!

Last edited by Wiz Au, 21/Aug/2017, 10:51 am


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2004 T30 series II, Ti for now.
JRR50 Pathfinder, QD32ETi Turbo Diesel, with 'lots o fruit'.
Eventually looking for a white or silver 2011-2013 T31 TL (Diesel) to "pimp out".
21/Aug/2017, 10:46 am Link to this post Send Email PM   Send Private Message Blog
 


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