VLSD the myth...
Moderators: P3g4sus, Daniel, rat, Draco, Riekert
- Vlade
- * - Club Pimp - *
- Posts: 2775
- Joined: Thu Oct 19, 2006 9:40 am
- Car: Other
- Real Name: Barend
- Location: Auckland, New Zealand
VLSD the myth...
"The viscous coupling unit, is a self-contained unit inside the diff housing. This would suggest that changing the diff fluid only affects the pinion and diff gears, not the coupling unit, but I can't tell for sure."
"The oem VLSD deficiency becomes exponentially anemic with the ever thirst for bigger and stickier tires. The 'limited slip' capability becomes less affective due to the light duty nature of these VLSDs. The non-serviceable viscous fluid in the core also deteriates with abuse over time. Unlike clutch-packed LSD, no amount of differential fluid change or additives will have any impact."
Bottom line we are f#cked Nothing you can do about it unless you got R8000 spare to buy a clutch type LSD
"The oem VLSD deficiency becomes exponentially anemic with the ever thirst for bigger and stickier tires. The 'limited slip' capability becomes less affective due to the light duty nature of these VLSDs. The non-serviceable viscous fluid in the core also deteriates with abuse over time. Unlike clutch-packed LSD, no amount of differential fluid change or additives will have any impact."
Bottom line we are f#cked Nothing you can do about it unless you got R8000 spare to buy a clutch type LSD
Hairdresser MX5
- Vlade
- * - Club Pimp - *
- Posts: 2775
- Joined: Thu Oct 19, 2006 9:40 am
- Car: Other
- Real Name: Barend
- Location: Auckland, New Zealand
Ummm the oil should have no effect on the VLSD though if its the correct grade GLI-5 or something...
That viscous coupling is a sealed of unit so no oil change can affect it.
That is what the myth is, I read up this morning on how to service the damn thing since mine is doing what everyone else is doing, not-working so good after 15 years. And to my shock one can't do anything with it... Yeah you can change oil but it won't help it lock better.
I'd really like it to lock more, on Saturday I destroyed one tire in the drifting the other is smooth but should wear the same as the other.
That viscous coupling is a sealed of unit so no oil change can affect it.
That is what the myth is, I read up this morning on how to service the damn thing since mine is doing what everyone else is doing, not-working so good after 15 years. And to my shock one can't do anything with it... Yeah you can change oil but it won't help it lock better.
I'd really like it to lock more, on Saturday I destroyed one tire in the drifting the other is smooth but should wear the same as the other.
Hairdresser MX5
- mario_200sx
- 200SX Maniac
- Posts: 2507
- Joined: Fri Dec 14, 2007 9:16 am
- Car: S13
- Location: Cape Town
Story of my life! I've read somewhere that and RWD car naturally puts more power on the rear left (or was it right) and you cant do much about it, even a solid axle, the torqing of the motor will still put alot of "weight" on one side, like in this pic...Vlade wrote:Saturday I destroyed one tire in the drifting the other is smooth but should wear the same as the other.
I just end up rotating the "good" tyre to the bad side and pop on another drift tyre (I got 4 identical spare rims)
Captain Slow to the rescue!
that is true because one of the drive shafts / side shafts are longer than the other. That is also why when you light up your wheels from standstill the rear always go towards the left.I've read somewhere that and RWD car naturally puts more power on the rear left (or was it right) and you cant do much about it
kak man. my car pulls to the left when I launch coz of my mega powerGary57 wrote:that is true because one of the drive shafts / side shafts are longer than the other. That is also why when you light up your wheels from standstill the rear always go towards the left.I've read somewhere that and RWD car naturally puts more power on the rear left (or was it right) and you cant do much about it
But does any1 know what LSD a S14 has?! I'm guessing it's close to the S13
S14, bb gt2871r, 0.7 bar boost, status: hmmm, well, she starts but..
haha - you noobs are funny!!!
the diffs are exactly the same. they're both R200 diffs, and i'm assuming from that fact, that they have the same internals!
as for the side-shafts being different lengths. i think in our cars, its such a minimal difference that unless you're running huge power, it wont be noticeable. i mean its not like my old FWD, where the one side shaft was twice as long as the other!!! talk about torque steer!
as for that pic of the drag car, yes the car does like to put more weight onto one side of the car, its even written in the equation of torque. but i think with that pic, most of the "twist" is in the body. thats why the front of the car is so out of shape compared with the rear!
as for our diffs not being affected by the type of oil, i dont think thats right! with the incorrect oil type your LSD will not work at all! and i dont see a sealed unit on that diff??? the housing of the LSD unit are open on the sides, and there are no seals on it. nothing to indicate that it is sealed!
then gary - i've used AGIP LSX diff oil with great results on my diff. i dont see the need to go to nissan for a shafting. try it out sometime and let me know what you think! its about 105-00 per litre, and only is available in litre bottles!
the diffs are exactly the same. they're both R200 diffs, and i'm assuming from that fact, that they have the same internals!
as for the side-shafts being different lengths. i think in our cars, its such a minimal difference that unless you're running huge power, it wont be noticeable. i mean its not like my old FWD, where the one side shaft was twice as long as the other!!! talk about torque steer!
as for that pic of the drag car, yes the car does like to put more weight onto one side of the car, its even written in the equation of torque. but i think with that pic, most of the "twist" is in the body. thats why the front of the car is so out of shape compared with the rear!
as for our diffs not being affected by the type of oil, i dont think thats right! with the incorrect oil type your LSD will not work at all! and i dont see a sealed unit on that diff??? the housing of the LSD unit are open on the sides, and there are no seals on it. nothing to indicate that it is sealed!
then gary - i've used AGIP LSX diff oil with great results on my diff. i dont see the need to go to nissan for a shafting. try it out sometime and let me know what you think! its about 105-00 per litre, and only is available in litre bottles!
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
- Vlade
- * - Club Pimp - *
- Posts: 2775
- Joined: Thu Oct 19, 2006 9:40 am
- Car: Other
- Real Name: Barend
- Location: Auckland, New Zealand
Part #16 on that diagram is sealed... they say it contains some sort of silicon thing...
As for the wearing of the one tire more than the other... It would just have been nice if they wear out more evenly, now its like 70/30 effect other tire is still usable, other is f#cked... at least I'm not a dorifto tire destroyer virgin no more
As for the wearing of the one tire more than the other... It would just have been nice if they wear out more evenly, now its like 70/30 effect other tire is still usable, other is f#cked... at least I'm not a dorifto tire destroyer virgin no more
Hairdresser MX5
maybe you need to shim that diff YO!Vlade wrote:Part #16 on that diagram is sealed... they say it contains some sort of silicon thing...
As for the wearing of the one tire more than the other... It would just have been nice if they wear out more evenly, now its like 70/30 effect other tire is still usable, other is f#cked... at least I'm not a dorifto tire destroyer virgin no more
ReeceZ wrote:I'm sorry... I couldn't help it. Please no one wish any hateful shit on me, I own an SX already
- Vlade
- * - Club Pimp - *
- Posts: 2775
- Joined: Thu Oct 19, 2006 9:40 am
- Car: Other
- Real Name: Barend
- Location: Auckland, New Zealand
Yeah speaking of shimming the diff - found a cool writeup on NZD1 pay them a visit... here is a taste
http://www.d1nz.com/forum/viewtopic.php?t=9610
http://www.d1nz.com/forum/viewtopic.php?t=9610
Hairdresser MX5