EF Ian

Looking very Nice

I'll keep that in mind thanks, but what I'm idealy after is a 4.1 as anything higher than that and motorways start becoming a pain. Thanks but it won't be any use to me, I already have an R200 as my car is a UK 260Z and as I'll be running an RB26DETT shortly I'll need the strength of the R200. Well, I only need the Pinion and crownwheel so the whole diff won't need shipped which will help, If I can arrange postage I can get it for a decent price as I know someone who owns a shipping company. I take it its you who is selling it and you've not just given me the link? If so I am interested if you are willing to send just the parts I need, I can still pay for the whole diff if you want so you won't loose any money and I can probably sort out the shipping so you won't have to do anything there. Let me know, thanks

I'm looking for a long nose R200 diff with a 4.1 final drive, I don't even need the whole diff, just the pinion and crownwheel.

Nice vid, Hows the GoPro? I've heard about a lot of problems with the new ones.

Thanks Guys ^^^^ Thats correct, most places kept the 260Z until 78 and we didn't get any of the extra emissions junk that a lot of the later USA cars seem to have. I'm having a problem deciding whether I actually want to take the L26 out, but I think in the end thats what I'll do, I don't mind not keeping it stock as I bought it to enjoy driving it and any work I do will be to enchance that enjoyment and improve how well it drives, originallity and value don't mean much to me, but I do want to keep the oldschool look, won't be doing anything crazy with the styling.

You'd have to make your own transmission mount.

Pm'd you Rick. Can anyone tell me the difference beetween ricks mounts and the Mckinney mounts regarding engine position, Idealy I want my engine as far back and low as possible for good weight distribution and COG. But also because I'm not that big and my arms aren't that long, if the engine mounts put the engine too far forward so that the gearstock ends up near the front of the hole then I'm going to have to reach forward to change gear which I don't want.

I didn't recieve a PM but I am interested in the mounts, could you send me some pics please.

Something like that would be good, better if I can find one in the UK though, saves on postage and import duty and vat. I'm thinking about changing my diff now to a 4.1 ratio to go better with a GTS-T gearbox, pity I can't swap it all accross from that diff. Hoping to find a long nose 4.1 R200 from an S12 Silvia. Might end up being easier just to swap a whole diff unit like that, I'm thinking that if my Z31T cv shafts mate with that ok then all I'd need to do to fit a short nose R200 like the above would be to fab a new front mount for it? I think a 2 way would be a bit hardcore for my intended use, I think a 1.5 way would be better on the road and better on engine braking, probably less understeer.

Trying to decide on which ratio diff to use for when I swap in an RB26DETT. Was originally planning on using my stock 3.7 R200 but I now beleive this will be too long. So option are: 3.7 3.9 4.1 4.3 I'm thinking 4.1 would be good as I'll be running at least 400HP, 3.9 would do but still might be slightly too long. What do othesrs think? What are you other guys with RB's running?

Still a fair bit to do, lots of updates to come then, looking forward to seeing this when its finished.

I would do if I could find any, had no luck so far. Always hard to get confirmation of the fitment and measurements too and I don't want to be buying the wrong one.

Post of some photos of what your mounts look like please.

Thanks for that, at least I can use that as a backup and fit nearly any diff. Whatever diff I get though, it can't be as a replacement for a vicous lsd can it as the viscous output shafts would be longer than open or clsd ones wouldn't they? But still this gives me the option of any clsd or open diff replacement LSD.

Thanks for confirming that. I'll definitly not flip the cages and will go with shorter axles, I think theres a place in the uk that can make me custom ones as long as I can give them the correct length,

Thanks, no binding with this setup then? I'm confused, my stock 300ZXT axles are probably not the correct size, thats why people suggest reversing the cages? If I had the M2 axles for example then I definitly wouldn't reverse the cages. I'll have a look in the group buy thread.

Thanks. I didn't atually realise they were different lengths, I thought it was only the input shafts that were different lengths. I guess they are both shorter than the originals by the same length, so if I measure that against my original I should be able to work it out. But hopefully someone can confirm the length for me before then. It may be that it works ok on mine with just the cages reversed, but do they work aswell reversed?

Yeah, its a LOAD of money, Cusco quality is spot on though and it can be adjusted from 1.5 way to 2 way if desired but I think I'll look for cheaper options first, like a Nismo unit if I can find a 1.5 way one that fits. I'm going to have a lot of work going on when I'm home from work next so I'll definitly have a build thread.

Can anyone give me the lengths of the shorter M2 shafts please? I'm going to get a set made but I need to know what length to get them made.

Could you run boost by gear, or aftermarket traction control, this works well on high power fwd's - will put as much power down as possible but not let the wheels spin up more than they should therfore giving you maximum acceleration. Should work equally well on RWD

78Z/250GTO - I love the Quaife in my FWD EF9, its great for that but I just don't think it will suit what I'm looking for with the S30, would certainly be good in a road only car but as I intend to also track mine the way the quaife behaves when a rear wheel lifts doesn't suit me, zohanisback - yeah, I will be running more power than I feel happy putting through an R180. I do believe I have found a CLSD that is a direct fit for my R200 without even the need for shims as it has 10mm ring gear not 12mm. Problem is it rather expensive, but you pay for quality. Here it is: http://www.part-box.com/product_info.php?products_id=27073

The R180 LSD setup sounds easy, but isn't really suitable for me, my car has an R200 already and I will be running a bit of power. Kazz don't do a 1.5 way as replacement for an open R200 diff. I'll look into a Cusco LSD and see if they do a 1.5, but they are a fair bit more expensive and not really any better. The only way I can run a 1.5 way Kazz LSD is to get one as a replacement for a VLSD but then my Z31T cv shafts won't work and I don't think there are any VLSD CV shafts that will fit the 260Z. I was hoping more people would add to this thread so I can see what others are using and see what they think of their setup.

I'd like to run a CLSD in my 78 UK spec 260Z in the original R200 casing. I was hoping to run a Kazz 1.5 way LSD but unfortunatly Kazz only do 2 way LSD's as replacements for open R200 differentials which is what I need as I'm running the Z31T CV axle upgrade. I'm intersted to see who is running a CLSD and what make/type/model it is and what your setup is.

Are there any viscous halfshafts that have the same bolt pattern as the Z31T ones and that therfore I will also be able to use with my Z31T adaptors? Reason being I want a Kazz 1.5 way lsd for my longnose R200 but unfortunatly Kazz only make 2 way replacements for the R200 open diffs, therefore for me to use a 1.5 way lsd I need to purchase a kazz 1.5 lsd for a viscous R200 unit and therefore I need the correct input shafts for whichever viscous replacement I go for. However I still need to use my Z31T cv adaptors so whichever viscous shafts I get need to have the same bolt pattern at the outboard (stub shaft) end.

Thanks for the opinions, going to go for a puller.