WTB R200 LSD

[Topher88]

Well i had one lined up to buy but not any more so let me know if you have one and if so how much. Best way to get a hold of me is Text at 9095284453. Located in Southern California

[datzenmike]

I think only the '87 300zx was clutch LSD R200 '88 and all Z 32 were viscous. S13/14 were viscous.

[Velvetpants57]

i believe you are correct. i have one out of a 300zx tt if you were interested. although shipping would be a bitch

[Topher88]

well the r31 skyline had a clutch 3.9 and 411 i believe.. but they are very hard to find.

[AZhitman]

Let's not confuse the thread - Z32 diff is a short-nose R200 and is useless for 99% of our cars. S-chassis (13 / 14) cars didn't have LSD.

 

I'm guessing the OP wants a longnose R200 LSD (found in the 87-89 300ZX), which is useful for S30 and S130 swaps, and is what everyone and their mother is looking for (including me).

 

Last few I've found have been $700+.

 

If you're building a 510, you're more likely to find an R160 LSD from a Subaru, which will be more in-line with Ratsun pricing. There's no need for an R200 unless you;re making huge power.

[BenJammin]

AZhitman hit it on the nose. Have to add, the '88 Shiro [Japanese for white] Edition Z31 was the ONLY longnose viscous LSD R200 that I know of. All other Z31 TURBO models from '87 - '89 were clutch LSDs but there is a gap in the early part of '87 so take note.

 

I sold an R160 LSD for $350 two years ago, much cheaper than the expensive R200 longnose LSD, and they can be had for about that now +/- $100.

 

Also to echo AZhitman, the R160 is a much better choice for the 510, it is smaller, lighter, and easier to adapt to that chassis. Only thing is I've never seen a finned cover for it like on the R200.

[datzenmike]

Let's not confuse the thread - Z32 diff is a short-nose R200 and is useless for 99% of our cars. S-chassis (13 / 14) cars didn't have LSD.

 

Both S13 and 14s did have LSD although viscous equipped. The S13 was a long nose R200 and the S14 was short.

 

 

I'm guessing the OP wants a longnose R200 LSD (found in the 87-89 300ZX), which is useful for S30 and S130 swaps, and is what everyone and their mother is looking for (including me).

 

The longnose saves needing to lengthen your driveshaft and is a true clutch LSD but the shorter one will be lighter, cheaper, and more than enough for a 4 cylinder motor.

 

 

If you're building a 510, you're more likely to find an R160 LSD from a Subaru, which will be more in-line with Ratsun pricing. There's no need for an R200 unless you;re making huge power.

 

Very true and should be the deciding factor.

[Topher88]

Is 400whp enough to need a r200 LSD? Im Putting it in my SR 510. I have a 3.9 open dif but I need a LSD. I already have the mustache bar. Yes I'm looking for a long nose.

[datzenmike]

They are usually rated by the torque they can handle but, I would guess so. This limits you to the zx R-200. Do a search for swapping C-200 LSD parts into the R-200 case. I think someone was doing this for an S12. http://club-s12.org/v3/index.php?topic=27606.0

[Topher88]

Ok and all those zx are VLSD right?

[datzenmike]

My info shows April '87 to Jan '88 as clutch LSD in the 300zx and Viscous LSD after.

[Topher88]

My info shows April '87 to Jan '88 as clutch LSD in the 300zx and Viscous LSD after.

 

What's your opinion on the pros and cons to VLSD vs CLSD? From what I have read clutch is the best performing

[datzenmike]

I hear the VLSD gets soft when well used and probably you have to just replace it. CLSDs you can replace the clutches and discs. The break away torque can also be adjusted on the CLSD by adding clutches.

[AZhitman]

I'm gonna feel like a heel for disagreeing with the guy whose posts I look to for advice, but here goes (love ya, Mike):

 

Both S13 and 14s did have LSD although viscous equipped. The S13 was a long nose R200 and the S14 was short.

 

Not in the US. US-spec S-chassis cars all had open short R200's (except the rare S13 HICAS cars, and those diff's are notoriously a PITA to retrofit).

 

The longnose saves needing to lengthen your driveshaft and is a true clutch LSD but the shorter one will be lighter, cheaper, and more than enough for a 4 cylinder motor.

 

The shorter R200 is still a pig. It was used in a ton of cars (Q45, J30, R32, Z32 n/a, etc). The longnose R160, which we're all recommending, was 20+ lbs lighter than the short R200... I just pulled one out of my Z and swapped it for a long R160.

[AZhitman]

Is 400whp enough to need a r200 LSD? Im Putting it in my SR 510. I have a 3.9 open dif but I need a LSD. I already have the mustache bar. Yes I'm looking for a long nose.

 

Several noted turbo VG cars are running R160's, including several I hang out with locally. On a side note, a 400whp SR is a rare beast - not disputing you, just saying, if you can afford a 450hp SR build, you should be looking at new aftermarket diffs. I'd know, I've been running 240sx.org for 15 years :)

 

You're not necessarily gaining "durability / strength" with a LSD, you're gaining traction. An R200 open diff can handle 400hp (altho torque is the real concern) all day long, it's just a matter of boiling one tire vs. two. Our RB-swapped S30 with the open R200 was not terribly fun to drive with the open diff, and is a joy with the R160 LSD.

[datzenmike]

I have #38420-40F66 as a Viscous LSD differential assy for '91 and up S13 and '94-'96 S14s.

 

20 pounds? Only a problem when lifting them in and out, otherwise same as two 10 pound bags of sugar on the back seat for traction.

[AZhitman]

I have #38420-40F66 as a Viscous LSD differential assy for '91 and up S13 and '94-'96 S14s.

 

20 pounds? Only a problem when lifting them in and out, otherwise same as two 10 pound bags of sugar on the back seat for traction.

 

20lbs is a big deal when you're 6'1", 163 lbs and you're swapping one on your back. :)

 

S13 HICAS (quite rare) had VLSD - VERY expensive option. S14's had to be specifically ordered with the factory-option VLSD (also pricey, you could almost get a Z for less than a SE-version S14), and in all my years of dealing with S-chassis cars, I've NEVER seen an OEM -equipped one... Easy to tell by the 18th character in the model number (not the VIN number).

 

I've no doubt there's a part number for it, I'm just saying I've never seen one so equipped (and I've played with TONS of S-chassis cars).

[Topher88]

I have been looking for a r160 CLSD but have had little luck. I have a buddy with a 370 hp 510 that has an r160 and has never had problems with it but I also know guys with l20b's that have blown them.... This is my first built motor ever and I have been told 400whp is easy with my setup. I'm running 1.5 cosworth head gasket, 86.5 cp pistons with 8.5 comp, hks step 1 cams and cam gears, garret 57 trim 60 ar turbo.

[AZhitman]

Sounds like a solid start - Again, I'm not disputing the #'s, but then again, I've never been a "numbers-chaser" (I leave that to the Super Street kids ;) ). I'm always naturally skeptical when people throw around dyno numbers before a motor is built.

 

For 450+ flywheel HP, you're going to be running big boost. I think you'll find that 250 whp in an old Datsun (without significant chassis improvements) makes for a hellaciously-fun (and sketchy) ride. I can't imagine 400+, and I've owned a LOT of high-hp cars. My 250-hp 240Z is a handful, and that's with a lot of suspension improvements. :)

 

Regardless of how the numbers turn out, you may want to consider an aftermarket diff (Cusco, KAAZ, NISMO...)

 

(Sorry if I helped derail this thread - My bad! :) )

[Topher88]

Well all those after market difs go for around a g right? Would a used one be safe you think?

[Topher88]

And do both s13/14 short nose r200 have the same internals as the 300zx long nose r200? So that means my 3.9 I have now I'll be perfect to switch out the internal for a Cusco LSD?

[AZhitman]

Yep. PM'ed ya.

[BenJammin]

Yep. PM'ed ya.

 

 

Whoa! Does that 'yep' mean I can take the internals from a short R200 and transfer them into a longnose housing ? If so, are there any spline size/count issues ?

[Topher88]

Well found myself a 3.9 clutch r200 LSD :) picking it up Sunday along with many other things for my SR build :-D Thanks Andrew