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Quaife ATB Front Splines

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05 May 2024 14:32 #255873 by Wild Bill
Replied by Wild Bill on topic Quaife ATB Front Splines
Yes, Roger, that's my thinking as well that I am trying to confirm. That coupled with the ALLGRIP Brake LSD Traction Control already there.

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  • Lambert
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06 May 2024 05:36 #255884 by Lambert
Replied by Lambert on topic Quaife ATB Front Splines
You misunderstand the operation of the quaife. They are not a locking diff they will spin if one wheel is in free air, they need some resistance on each wheel. Assuming there is some resistance they work astoundingly well to maintain even torque distribution. If you have traction control then it's debatable if you are not doubling up systems by adding the atb, the argument for is that with a wheel in the air the TC will work to provide the resistance the atb needs but the TC needs to see a wheel spinning to activate at which point that braking effort is already sending torque back across the diff so what extra is the atb adding. That's not to say that the atb doesn't add benefit in normal 4x2 road driving because it tightens up the general cornering dynamics to something like an old rwd escort, if you want that kind of thing.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
ADOS Attention Deficit Ooooh Shiny!

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09 May 2024 15:14 - 09 May 2024 16:06 #255912 by Wild Bill
Replied by Wild Bill on topic Quaife ATB Front Splines
Thanks for your reply.

Yes, I did some reading on driving with the Torsen diffs used in military HMMWVs, and I believe I now understand the difference between Brake Throttle Modulation as used in them compared to the on-off ABS traction control on the Jimny. It seems to me that if there is a wheel in the air spinning that when the ABS brakes that wheel the ATB will indeed send torque to the other wheel, but when the ABS braking ends, if still in the air, the wheel will begin to spin again and torque will be lost to the other wheel again and we begin again, whereas with BTM the brakes remain gently applied together with the throttle (robbing some torque of course but better than 0:100) until both wheels are on the ground and there is at least some traction on both.

This leads me to wonder if anyone now has any longer-term experience using the Chinese LR/WMD E-Lockers + Torsen diffs where you should have the benefit of Torsen on the road and fully lockable diffs when desired (I understand that there is some wheel movement required in the locking mechanism of an E-Locker before it actually locks compared to Air Locker, especially if changing vehicle direction).
Last edit: 09 May 2024 16:06 by Wild Bill. Reason: brand name of E-Lockers + Torsen I've seen

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12 May 2024 10:55 #255928 by Wild Bill
Replied by Wild Bill on topic Quaife ATB Front Splines
Anyone?

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