Kev T

As above Black HR 350 in mile end road east london around 10.20 pm last night.

Hello and welcome.

Where did you get them from ?

Got mine today, superfast delivery well done bradders,

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Hello and welcome.

Hello and welcome.

I couldn't find a lot of information on doing this modification so decided to catalogue my progress for anyone else thinking of changing to Mechanical LSD. The stock Nissan diff is a viscous coupling which gets its resistance to spinning just one tire from steel plates turning in a sealed drum of silicone goo about the consistency of snot. Although Viscous LSD's are good for smoothness and quietness, they not great for putting the power down due to all of the slip they have by design (sort of like the torque converter in an automatic transmission). The silicone snot also breaks down quickly and the diff loses what little effectiveness it had in a few track sessions, so i recently purchased a Kazz 1.5 LSD and felt that 100% breakaway torque was too high for road use, to reduced that torque to 60% the clutch plates have to be repositioned and here is how i did it : Before removing the 4 flange bolts put 2 G clamps on to prevent stress on c/sunk bolts as they are removed. This is what it looks like when the case is taken apart. the driving and driven clutch plates are fitted alternatively from the factory to give 100% grip The clutches are deactivated by pairing drive clutches and driven clutches together, rendering them not in use. You can see here that i have put two drive and two driven clutches together. This reduces the total amount of lock by 20 percent. I have deactivated two more sets of clutches per side which has reduced the lock by 40 percent. Lastly put the 2 halves of the Diff case together carefully lining up the splines and clamp up then reassemble the 4 c/sunk bolts first removed and torque to 10 -15Nm. That is the lock reduced to 60% this of course must be done on both sets of clutches. This is my first time of disassembling an LSD so if anyone sees a mistake don't be shy to chime in.

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Imho all ARBs are much the same as long as they are adjustable, i got the Eibachs cos they are red. They do reduce roll and make the car more planted in corners for sure.

Recieved mine this morning, many thanks.

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I did wonder when the article was refering to stats in 2001.

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Brilliant, thanks for the info, as you probably have yours fitted first it will be interesting to hear your opinion good or bad of the change.

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Ok thanks, I assume to reduce the slip to 60% it is a case of turning the clutch plate grip faces on 4 of the 10 plates ?

Cheers for info that its a fairly simple job, i have sourced more allen bolts so will attempt the disassemble next week.

Hi Evilscorp, i need to set my Kazz to 60% as well so your post of interest to me. Having never had an LSD apart before is it just a case of turning the clutch plates in pairs to achieve the required slip ? Apart from the clamping issue did you run into any problems at all.

Black 350z Mile end Road east London 8.30pm.

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Hello and welcome.