Du-lock G sensor and settings

[MoMnDadGTR]

Rescently installed a du lock version 2 g sensor to my car to get my 4wd working again(1993 GTR).  took it out felt great to have the awd again.  it has a way better response to the front wheels although I really want it to act more aggressive in the front earlier in the corner. I realize gtr's are rear wheel base and shift to the front when needed.  I am a fairly aggressive driver and enjoy weekends at the track and love the circuit setting.  I want to leave my gtr in circuit mode all the time as its kind of a pain to keep changing it back default for daily driving. am I gunna burn up my diff or transfer case doing this?  I have a new transfer case and nitrogen canister with a new atessa pump.  more worried about burning my front diff out with to much constant front torque applied to diff. thanks.

[Piggaz]

http://www.kudosmotorsports.com/catalog/differential-front-quaife-helical-qdf3l-suit-nissan-skyline-p-1777.html
 

Buy this.

Put it in.

Enjoy.

Stock front diff belongs in the bin.

[MoMnDadGTR]

ya I kinda figured this was the route I have to go. thanks.

[MoMnDadGTR]

I can get my hands on a Nismo 1.5 for 1400 shipped. only saving about 600 bucks but seemed like a descent option for my setup.

[GTSBoy]

Heavy mechanical diffs in the front of a GTR are not a lot of fun. Helical (Quaife) is a massively good choice for the front.

[MoMnDadGTR]

its a done deal I ordered one from kuda.  thanks for the help

[MoMnDadGTR]

quick question buddy, when I get the new diff should I run my 80w90 weight In the front or the 140w? I got limited slip in both weights as I was trying to make up for some slop in my front diff. I've done a ton of reading on old threads just curious about your thoughts, thanks m8.

[BK]

Hi mate. I run a Quaife in front and rear. See in the drivetrain section, but essentially you should be running 75w-140 generally in the diffs front and rear if you don't want your diff crown wheel and pinion gears to wear out, although you do have a picture of a GTR in the snow. Where I'm from it's 45deg C + for 5 months of the year, so maybe 75w-90 GL5 in the snow time for you if you're worried, but the 75w-140 does have a wider viscosity range but be similar from cold, so in "theory" should still be ok in the cold.

[MoMnDadGTR]

ok thanks m8, I put a build thread up. I have no idea if its proper but its a start.  I don't drive the gtr in winter just a couple test drives after all the new parts so ill run the 140.  I see you own 2 gtrs that's wild m8. you like the 33 or 32 better? prob love em both eh...……..

[GTSBoy]

21 hours ago, MoMnDadGTR said:

its a done deal I ordered one from kuda.  thanks for the help

 

11 hours ago, MoMnDadGTR said:

I got limited slip in both weights as I was trying to make up for some slop in my front diff

Here's an important point. It's not clear from your post whether you bought a 1.5-way or a Quaife. If you bought a Quaife, then they do not use LSD oil. There are no clutch plates or other friction surfaces in there to need the friction modifiers in LSD oil. Just normal diff oil is the ticket. If you bought a 1.5-way, then of course, LSD oil.

[MoMnDadGTR]

1 hour ago, GTSBoy said:

 

Here's an important point. It's not clear from your post whether you bought a 1.5-way or a Quaife. If you bought a Quaife, then they do not use LSD oil. There are no clutch plates or other friction surfaces in there to need the friction modifiers in LSD oil. Just normal diff oil is the ticket. If you bought a 1.5-way, then of course, LSD oil.

glad you made this point I was under impression it is ok to use limited slip oils in non limited slip just not the other way around.  I went with a quaife. I will use normal 140w then thanks.

[BK]

Exactly, it is ok to use LSD oil in a non LSD, not the other way around ( non LSD oil in LSD). Good stuff like Motol comp gear 75w-140, Castrol SAF-XA ect. is generally an LSD oil by design, but is still used in LSD, non LSD and dog box transmission applications. They don't need the LSD friction modifiers, but it doesn't hurt them. 

You will find nearly every dog box and performance diff manufacturers are specifying Motul Comp gear 75w-140 as it is considered the best in the business.

[BK]

16 hours ago, MoMnDadGTR said:

ok thanks m8, I put a build thread up. I have no idea if its proper but its a start.  I don't drive the gtr in winter just a couple test drives after all the new parts so ill run the 140.  I see you own 2 gtrs that's wild m8. you like the 33 or 32 better? prob love em both eh...……..

Yeah love em all. Got 3 GTRs now actually. 2 x 32s (the latest one is actually a joint project for my Dad and completely in pieces) and the 33. I guess I have the GTR bug...

The 33 is definitely a better base car but I see the 32s as a better platform to go all out on with heavy modification. To be honest I hate the inside dimensions of a 32, I don't fit properly, which is why the 33 feels better to be in. Seating and steering positions are much better in a 33 I think. That said most of the modification money goes into the 32, so Maybe I'm just retarded...?

Anyway you'll love the Quaife front

[MoMnDadGTR]

I hope so, I've got that du lock sensor dialed in real nice sure a big difference from a stock g sensor set up was worth every penny, the new quaife will be the icing on the cake. I would love to find a stock r33 gtr so I could go big power build for track/strip on the old 32. anyways thanks for the help throughout m8 will stay in touch. drive safe enjoy your gtr's

[MoMnDadGTR]

On 17/01/2020 at 6:46 PM, Piggaz said:

http://www.kudosmotorsports.com/catalog/differential-front-quaife-helical-qdf3l-suit-nissan-skyline-p-1777.html
 

Buy this.

Put it in.

Enjoy.

Stock front diff belongs in the bin.

preparing the car to get this front diff in next week. I was wondering if I should just bite the bullet and swap a different diff in the rear as well. cars got 120,000 on the rear diff maybe time for upgrade or save my cash and go till she explodes if it ever will. let me know bro I got 3 weeks before I have to go back to work full time and I wont be able to do much on car till next year. thanks buddy.

[BK]

Yes, the rears are awesome too. Just a question though, do you actually know how to reshim a differential so that the crown wheel and pinion gear have the correct backlash ? Remember they are not straight drop in items as the centres will be slightly different, requiring reset up. Also the rear is a pain in the arse to get in and out.

Again also, the Quaife rear only comes in 31 tooth rear diff half shaft spline centre, not the more common 30 tooth in R32 GTR, which opens up a world of pain trying to obtain these days as they are discontinued. R33 GTR non v spec mechanical rears are all 31 tooth, not R32s.

[MoMnDadGTR]

I just did some reading on that, which Is why I think im gunna rock my stock one till she acts up. I own a tree company in Canada and work on heavy equipment everyday, I have not replaced a gtr rear diff specifically but the shimming process is no different in my eyes from a large piece of equipment to a small car. its really just a fun thing for me to work on from time to time so if it takes me a year to replace the rear diff so be it haha. I like to learn and would love to tackle the job. I haven't run into anything yet that this site hasn't solved for me as well.  guys like yourself have been a big help in going through the gtr journey again.