Saavedro88

iTrader: (1)

Ive done sone searching but im at work, and the filters are a pain to get around, so I haven't found much. How is the GTUs VLSD at drifting? I have an opportunity to pick one up for a decent price, but I'm not sure how well it will hold up. My GXL rear end is pretty much done for, it hasn't locked since the first day I swapped it in...

a2dadamm

iTrader: (1)

i have one for sale lmk

Saavedro88

iTrader: (1)

I'm not LOOKING for one, I already have one I can get, I'm asking how durable they are.

a2dadamm

iTrader: (1)

i know just throwing it out there

Saavedro88

iTrader: (1)

...

Not to mention you're way to far away for me to be interested...

jerd_hambone

Well, I assume it's just a standard N/A lsd just with a different gear set in it. Sooooo.... Just as good as any other N/A lsd.

Saavedro88

iTrader: (1)

Not quite, it has a viscous coupling in it instead of the clutch type. I just want to make sure its durable enough to handle it.

Molotovman

iTrader: (49)

The diff will hold up, it's the stub shafts that won't. If you're still n/a you'll be fine, but if you're turbo swapped, you will eventually break a stub shaft.

As far as lockup goes, everyone raves for a Torsen or a rebuilt clutch type. The vlsd locks up differently, I never had a problem with it, but I think the others lock up faster.

Just an FYI, if you run the 4.3 and some 15's with low profile tires, you will love it. The car will be noticeably quicker.
Add a miata gear set to that equation....... It's awesome for an n/a.

jerd_hambone

Being viscous would make it a standard S5 lsd.

What are you running for engine and mods?

Saavedro88

iTrader: (1)

Yup. It's a GTUs LSD. That was mentioned in the first post. ;-)

Saavedro88

iTrader: (1)

Definitely still N/A. All 117HP of it...

I have the clutch type in it now from an 86 GXL, but there's a drift even coming up in like 2 weeks, and I won't have time to learn how to rebuild it by then. You mentioned Torsen, Does the Miata rear end really just bolt in? Will I need the Miata half-shafts?

I read a build thread once about a Miata transmission swap into an FC, and it looked ridiculously labor intensive and expensive. Is there a way to just transfer internals? Cause I have like 5 FC transmission that are all bad, so I have the cases, lol...

Molotovman

iTrader: (49)

I don't know enough about the diff's to tell you, but I can tell you about the miata Gearset.

I had it done, and my total cost was around $950.
I bought a used Miata trans from a 2001 car with 11K on it for $375 and had it shipped here from Florida. I tried to take it apart, but after getting the housing off realized it was way over my ability. I took it to RP Performance in at Summit Point, and Bret Machined the input shaft and installed the gearset into the case fore $500. After that I just got some gear oil and put it in.

It's a lot more fun(You can start from an uphill stop in 2nd gear!), but don't expect the car to be a highway cruiser. With the 4.3, Miata gears, and when I was running 15's 80MPH was about 4200-4300 RPM.

Saavedro88

iTrader: (1)

Ok, do you know if he just put the NB shafts in the FC tranny? Or did he take the gears off and press them onto the FC shafts? And you have to have the Input shaft machined to fit into the FC clutch? Or can you just get a Miata clutch disk?

stevensimon

iTrader: (11)

viscous sucks.. its slightly better than open. you can either weld it or id suggest finding a stock s4 clutch type or an aftermarket. torsen diffs are about the worst you can have for drifting. they may be ok or even favorable for road racing but are probably rated even lower than open diff as far as your questions go

to avoid these bullshit answers, you should frequent the drift section more often. less people talking out of their *** over there.

Black Knight RX7 FC3S

iTrader: (7)

vlsd do suck for drifting.
The internal fluid will overheat and will let go, then you will have an open diff until it cools back down. Torsen diffs work but they are very unresponsive vs clutch types. Torsens initial bite is linear compared to a clutch which will bite right away.

Also.....who has diff stubs for a GTUs S5 4.3 diff.
I need a pair BADLY!!!! Mines broke.....

Saavedro88

iTrader: (1)

We have a drift SECTION??

Saavedro88

iTrader: (1)

Do you think it will overheat just for a skidpad? I've never done any drifting, but there's an event coming up that I'd like to get onto the skidpad for.

Saavedro88

iTrader: (1)

BASICALLY, all I want to know is if the damn thing is going to break, or if it will be ok. I'd hate to take a rare diff and blow it up the first time I use it.

jerd_hambone

You'll be fine. If you break it, it was broken anyway.

MrGoodnight

iTrader: (1)

https://www.rx7club.com/drifting-226/

Saavedro88

iTrader: (1)

Nice. Never seen that before...

stevensimon

iTrader: (11)

your diff wont break but after about 20 seconds, you will be mad that your car wont slide any more.. especially on something little like a skid pad and being new to the sport

Saavedro88

iTrader: (1)

Really? Crap. So should I not even bother swapping it in? All I have right now is two open differentials. It would have to be better than that right?

SpikeDerailed

iTrader: (7)

Take the the VLSD out. Grab the clutch type lsd out of the gxl diff put some new clutches in it and oversized thrust washers(to shim it) and jam it back into the 4.3 gearset.

Saavedro88

iTrader: (1)

Where can I get the clutches and shims? I've never done this before. Can you tell? Lol.