Jump to content
SAU Community

Recommended Posts

Howdy,

I've noticed the diff (longnose R200) on my GTS-X is starting to display less than LSD qualities and its really starting to annoy me. I know this has been asked a few times but I was hoping to pick some brains and find out if there is a way to get some proper machanical LSD (1.5 or 2 way) happening again in my car.

Any opinions would be welcomed, retrofitting newer OS Giken etc. centres or full swaps with newer nissan diffs etc or ways /places to get the original one rebuilt (not welded) with a more reliable LSD action.

Cheers,

Rhino.

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/
Share on other sites

yes welcome to the craptastic stock r200lsd, openwheel city.

aftermarket lsd centres are the best option but REALLY expencive, 1500plus. i rebuilt mine with nismo clutchplates and it locked up at the drop of a hat. it was really good.

i recomend that you rebuild it with the nismo clutches.this basicly makes it a nismo one,ive seen both pulled apart and they are the same. il get back to you tomorrow with instructions for preload etc. its not hard at all.

i have all the part numbers at work for them.6 in total.

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1345622
Share on other sites

Thanks very much TO4GTR this is exactly the sort f info I was chasing.

Rhino.

il get you the part numbers tomorrow. sorry for the delay.

ps. genuine nissan standard friction discs are about $90 each. i got mine from STUART WILKENS RALLY in mulgrave nsw.

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1359740
Share on other sites

just use normal shims and stuff.

Mine cost me $500 all up to have it rebuilt and it works virtually the same as a aftermarket one.

No-one would ever pick the difference and its taken a beating so far and is yet to miss a beat

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1373180
Share on other sites

  • 3 weeks later...

I would imagine HR31 LSD's are similar if not the same as turbo DR30's . That era of R200 LSD was designed to have some function but not over the top . A propper R200 LSD has four sets of active plates in each side to give progressive and durable (slow wear rates because more plates = more active surface area) use . The std DR30 type only has one active pair of plates in each side (along with the curved or Belville plates to give some pre load) and a spacer to take up the space where the other active plates would have been . To get it working properly the hemisphere needs to be removed and separated from the crown wheel , the spacers need to be flicked and replaced with clutch plates . Belville washers (plates) need to be selectively fitted to get some static pre load on the clutch plates . Don't get the idea that this static pre load is what does the limited slip thing , its the ramps in the hemisphere case and the wedge shaped notches on the spider shafts that achieve this with the drive or torque reaction from the pinion via the crown wheel . What really happens is if you lift a back wheel or it has zero traction the spider shafts won't ride up the ramps and compress the clutches limiting differential action . Static pre load tries to give some very limited drive in these situations , but for this type LSD to work it needs some traction to load it properly first . The ramp angles are quite good on production R200's , same as Nismo H190's and use the same clutch plates , they don't need heaps of pre load ie 40-50 lbs . Mine was set up to about 67 and was a pain in the butt for road , it would drag its bum round tight corners at low speed and try to lock up with very little throttle . These are bad traits in a road car , causes loaded up suspension joints and causes body flex and rapid tyre wear . I learnt all that the hard way with a Detroit Locker diff I once used in a Bluebird , never again .

Any Nissan diff specialist , particularly one with rally experience from the past should be able to sort it for you .

Cheers A .

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1401380
Share on other sites

  • 4 weeks later...
  • 5 weeks later...
  • 2 weeks later...

Hey Crew,

I have a datto 1600 with a DR30 or HR31 Skyline R200 diff. I beleive it has Crown and pinion wear and therefor the lovely noise that comes with it.

How do i fix it?

Can i purchace a new crown and pinion for this diff?

Do any of the later model R200's have swappable parts?

Regards

Paul

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1525158
Share on other sites

The later model r200's have bigger bolts thru the crown so not really interchangable but it has been done.You could try having the crown and pinion reshimed but this doesnt allways work as the crown and pinion may have a lot of wear and need replacing.These are expensive thru nissan and probably easier to hunt around for another diff.

The main problem with the long nose r200 is that most of them only have one friction disk each side and these have a tendency to tear the inner lugs off as all the power is being tranfered thru these.The nismo diffs use 3 of these aech side(actually 2 and a spring disk) and 3 friction plates(2 fricton plates and a spring plate) and then shimed to the correct break away pressure.The nissan pinion shafts have around a 45 deg angle where as the nismo pinion shafts are around 30deg which means they can lock up with less load.The nismo diff also has a chromemoly end plate to reduce the chance of the diff exploding.

http://www.gordon-glasgow.org/lsdtech.html

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1525448
Share on other sites

Thanks for that datsquik,

Any idea where i might be able to find those Nismo items to upgrade the diff?

Sounds like youve done it before?

Is that pic of your datto?

heres mine:

http://www.nissansilvia.com/forums/index.p...album&album=952

Regards

Paul

post-22724-1124206062.jpg

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1525496
Share on other sites

SWR usually stocks most of the parts needed and is a bit cheaper than retail from nissan.If you can get a good trade price then you can get some of the plates thru nissan cheaper.Some of the other plates have to be ordered from nismo if your trying to save costs.Send me a pm and i can give you some details of who to buy them thru and what parts are needed.Your dat looks good,what grill is that.Here's some pics of my dat,you'll notice not many pics of the body as its pretty nasty.Im actually in the process of welding on another arse end and getting it ready for a paint job.Im also trying to sort out some billet halfshafts and stub axles.

http://photobucket.com/albums/v604/datsqik/

Link to comment
https://www.sau.com.au/forums/topic/72944-hr31-diff-query/#findComment-1525949
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Welcome to my 2004 Toyota Mark ii IR-V Fortuna (series 2) With a 1JZ-GTE powerplant under the bonnet (hood) it'll give me plenty of scope for power upgrades. For those who aren't familiar with imports, the 1JZ-GTE is a 2.5L 6 cylinder VVTi engine with a single turbocharger. This has the factory R154 5 speed gearbox, along with a aftermarket 2 way LSD differential (brand unknown). Under the arches are a set of CST Zero 1 alloys, 18x9 +30 225/40 up front and 18x9.5 +15 265/35 on the rear. The car was quite low in Japan and there's evidence of the wheels catching the rolled arches/fenders. The tyre's aren't great so I'm in two minds whether to replace both or just the tyres and put up with the wider wheels on the rear. The car still uses stock brakes with the addition of some braided hoses. The exterior is stock with the exception of a BN Sports front bumper and a replacement Fortuna grill  Moving to the interior, the steering wheel has been replaced with a dished MOMO steering wheel (which will get swapped for my Momo Tuner for the time being) Defi Link Gauges are mounted above the climate controls and on the A pillar, the Oil Temp,Oil Pressure,Water Temp and Boost gauges should help with spirited and track driving  The stock seats have been replaced with some retrimmed Recaro bucket seats. Being a larger build these are a little snug, unfortunately the orange isn't for me so I'll look into replacing these down the line. Other modifications include a twin plate clutch, Blitz intercooler, Evolve alloy radiator, a stainless exhaust with decat, HKS EVC-S boost controller and coil overs
    • Apologies for the long read My R34 GTT was up for sale at the beginning of spring due to a few repairs creeping up. The strut tops needed replacing, roof and bonnet (hood) painting (yay for 3 stage pearl) and the underside stripped and treated. I sold the car which allowed me to be in a much better place financially. Leading up to the sale I was already thinking about the replacement. In an ideal world it needed to be a good all-rounder. Something I can mess around with, modify, do track days, do the school run, go on long drives etc.  Options included but not limited to... Laurel C35, Evo 8/9, Civic FD2, Impreza Hawkeye, Aristo and even an Audi S4 Avant (I've already got the Mazda 6 wagon). But there was always one car at the top of the list The Toyota Mark ii JZX110 I found an advert on a Facebook group for an example in Japan, from a seller called Jon at Rising Sun Exports. A few messages back and forth and Jon calls me from Yokohama one morning (or afternoon in his case). He briefly explained the import process, the costs involved and a repeat of the advert. After much deliberation, the price was agreed and the sale was locked in. I've never imported a vehicle so I jumped into the unknown head first. The money transfer was completed through wise.com (fees apply), very easy to use and the money was with him within a day or two.  The car suspension was raised for the vessel and the car dropped off at the port. It was 7 weeks later when the bill of lading was received and the freight invoice sent to me, followed by the export certificate a couple of days after (both digital copies) In the mean time the port had been in contact. I needed an agent to deal with the NOVA (notification of vehicle arrival) along with the tax/duty invoice, this was £75.00. The port also had a fee of £100, I'm guessing to cover the cost of the 10 day 'free storage' and for moving the car off the boat etc. They need a copy of the vehicle invoice, freight invoice and export certificate to allow the vehicle to pass through customs. The vessel arrived on Tuesday 5th August, the tax/duty invoice was generated and sent over. This is generally tax 20% and duty 10% of the vehicle value. Although the invoice came in at a higher amount than I had calculated. Once HMRC had received the payment the vehicle could be released from customs. I thought once the tax/duty was paid you could collect at any point, that's not the case. Your agent will need to book a collection slot, I requested Thursday 7th which was accepted, with a 9:00am slot allocated. It was a 5:00am start from Norfolk heading to Southampton. We eventually found the compound, upon presenting the bill of lading and some ID they released the car (they drove it out of the compound to the front ready for us to load up). The email from the port stated each slot had a 10 minute window, which seemed abit farfetched but the staff said it's not a strict rule. We were there for approx. 30-40 mins in total. A week prior to collecting I contacted my garage and explained the situation, I was able to get an inspection slot that afternoon. For the registration, DVLA require the car to be insured, for this I used a company called Adrian Flux who can insure the vehicle using the VIN number. 
    • Hey guys, looking for these side skirts if anyone can help me out. 
    • Wife and I are still looking for a new home. One condition was a large enough garage for a full-size lift in one bay. Now if only we could find something... We've been looking for almost a year now.
    • Thanks everyone for the ideas! Sadly, ramps are a no go for me. With young kids at home, I do most of my work late at night while they're sleeping. Starting the car multiple times wouldn't be a great idea.  I'll go see one of those new long reach low profile jacks and take a couple measurements to see if they will fit.   
×
×
  • Create New...