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| LSD in both diffs on a Jimny https://auszookers.com/forum/viewtopic.php?f=5&t=46286 |
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| Author: | oldvanman [ Sun May 18, 2014 7:30 am ] |
| Post subject: | LSD in both diffs on a Jimny |
G'day I have been looking around for a LSD and foundthis listing... Promotion Sale Limited Slip Differential(LSD) Front and Rear combo set for Suzuki Jimny http://www.aliexpress.com/store/product/Promotion-Sale-Limited-Slip-Differential-LSD-Front-and-Rear-combo-set-for-Suzuki-Jimny/430089_1047628304.html Has anybody tried them? Regards |
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| Author: | whincup [ Sun May 18, 2014 7:50 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
not really helpful, but for that price you could get an airlocker and still be in front costwise |
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| Author: | Jezza86 [ Sun May 18, 2014 10:18 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
The torson lsds wont do anything if you lift a wheel. My advice, hold your breath and get inline for Joeblows lockers once the patent is aperoved |
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| Author: | Jezza86 [ Sun May 18, 2014 10:30 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
From wiki, literally "When a Torsen differential is employed, the slower-moving wheel always receives more torque than the faster-moving wheel. The Torsen T-2R RaceMaster is the only Torsen to have a preload clutch. So, even if a wheel is airborne, torque is applied to the other side. If one wheel were raised in the air, the regular Torsen units would act like an open differential, and no torque would be transferred to the other wheel. " |
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| Author: | 303zuke [ Mon May 19, 2014 1:25 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Before you shell out any money, be sure to confirm what vehicle they suit. In the Japanese market, all the following have been called Suzuki Jimny: LJ10, LJ20, LJ50, LJ80, SJ10, SJ20, SJ30, SJ40, SJ50, SJ70, SJ80, JA11, JA12, JA71, JB23, JB31, JB32. And even then, there's no guarantee the narrow track JDM JB32 Jimnys have identical diff centres to Aust market wide Jimnys! |
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| Author: | Gwagensteve [ Mon May 19, 2014 7:14 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Torsens work well if you left foot brake them, which is cool with an auto and for short obstacles, but not much chop if you're trying to climb long hills for have a manual. Dad used to have a H1 hummer that ran them stock. He ultimately swapped them for air lockers. Steve. |
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| Author: | Jezza86 [ Tue May 20, 2014 9:47 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Gwagensteve wrote: Dad used to have a H1 hummer that ran them stock. He ultimately swapped them for air lockers. removed the lsd's to put lockers in, thats saying a lot. sounds like joe's lockers will be cheaper then these anyway |
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| Author: | Gwagensteve [ Tue May 20, 2014 10:08 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Not really. The rear torsen broke and rather than replacing it with another difficult to find torsen, Dad made the call to go with air lockers. When not broken, the Torsens were quite good in the hummer. |
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| Author: | Jezza86 [ Tue May 20, 2014 10:27 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
ahh yeh that changes things a bit. torsens would work great with electronic traction control to break the spinning wheels, but good traction control should theoretically make lockers and lsd's redundent. |
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| Author: | JrZook [ Tue May 20, 2014 10:59 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Theoretically you are correct |
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| Author: | vet 180 [ Wed May 21, 2014 4:03 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
It is starting to happen in new vehicles. Still traction control, no matter how good will always be much more intrusive than lockers. |
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| Author: | Gwagensteve [ Wed May 21, 2014 6:49 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
I disagree with you 1000%. Lockers are inherently intrusive. Well tuned traction control can mimic a locker and also torque vector in a way that is fluid and dynamic. Even many years ago it was possible to get traction control to act when wheel sped varied by as little as 5%. Steve. |
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| Author: | JrZook [ Wed May 21, 2014 9:50 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
So how good are these well tuned traction control systems on low grip surfaces eg sand/mud? |
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| Author: | Jezza86 [ Wed May 21, 2014 10:05 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
old video 2:40 in is ETC. if you left foot break you can go slower anc activate the etc/abs which will apply breaks to the wheel thats breaking away. the advantage is your using standard equipment already on the vehicle. |
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| Author: | 303zuke [ Wed May 21, 2014 10:33 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
So who has fitted ETC to their Suzuki yet instead of a locker or LSD? AFAIK, it's still only a factory fit feature not available aftermarket, and only available on top of the range ($$$) "Big" 4wds. I do agree that the combination of ETC and LSD is a very potent yet unobtrusive combination, far smoother than an autolocker. |
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| Author: | banga [ Wed May 21, 2014 8:26 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
pretty sure there was a write up on the subie forum someone was trying to nut a system out from memory I think they were trying to use abs sensors. |
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| Author: | Gwagensteve [ Wed May 21, 2014 8:54 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Well that's exactly what traction control uses, so that would be a good start. Traction control= abs working backwards. Steve. |
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| Author: | 3cyl [ Thu May 22, 2014 4:56 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
The Haultech guys were playing around with traction control on old Rangerovers back in the '90s and early 2000s. They ran diaphragm actuators on remote extra mastercyls, with a programed basic stamp from Jaycar as a processor and proximity sensors on the wheels sensing wheelspeed. They were using Trutrac diffs as well. Chuck still uses it on the front of his but everyone else gave up. A computer putting the brakes on while you're trying to drive wasn't really unobtrusive and still wasn't any where near as good as a locker. |
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| Author: | SierraDan [ Thu May 22, 2014 5:51 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Dave Camp's old TT has those brake cylinders in it. One for each wheel, but each is switchable from the cab. I drove a lot of stuff unlocked with gearing that i could locked by left foot braking. However, manual made it difficult and only worked on slow stuff. I don't believe there is a substitute for 100% locked diffs. |
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| Author: | Gwagensteve [ Thu May 22, 2014 9:55 am ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
I wasn't aware of how haultech set up their traction control. Sounds slow though. I don't argue that for our application, lockers are superior. I was only disagreeing with the blanket statement that traction control is intrusive. It is in many vehicles, but it doesn't have to be- when you re dealing with torque vectoring you can't have the system pulsing like old school traction control. Same as ABS. The best abs systems are almost undetectable. The Bosch system in the 05 STi I had was remarkable. Steve. |
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| Author: | greyghost [ Thu May 22, 2014 4:17 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
and generally the moment you touch the brake peddle, you turn off the traction and turn on the ABS |
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| Author: | 3cyl [ Thu May 22, 2014 7:49 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
Gwagensteve wrote: I wasn't aware of how haultech set up their traction control. Sounds slow though. I don't argue that for our application, lockers are superior. I was only disagreeing with the blanket statement that traction control is intrusive. It is in many vehicles, but it doesn't have to be- when you re dealing with torque vectoring you can't have the system pulsing like old school traction control. Same as ABS. The best abs systems are almost undetectable. The Bosch system in the 05 STi I had was remarkable. Steve. Oh yair it was slow, I guess it was meant to be slow, they did it more for slow rocky stuff. Just being pneumatic must have made it much slower than a hydraulic factory setup. Did a fair amount of huffing and puffing too, would have used some air. The more effective they made it the harder it was on diffs, axles and CVs. I've never driven anything with traction control so have no idea how it compares from the driver's seat. |
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| Author: | banga [ Thu May 22, 2014 8:30 pm ] |
| Post subject: | Re: LSD in both diffs on a Jimny |
a mate of mine has a forester and has setup line lockers on both front brakes has them on separate switches works well a bit awkward cause the gearing in the Subaru is a bit tall so a bit of clutch riding involved if he was running an auto would be better. but they totally transformed it off road being a all wheel drive with out a locking centre normally pick a wheel up and loose drive. when his budget permits he is gonna have a go at fitting them in the rear and just run 2 switches so it holds opposite corners. |
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