Which has more grip? VLSD or welded diff?

[crazy9ceguy]

just wondering which lsd has more grip vlsd or welded diff?

[LH1-Hatch]

If you're talking about for road race, a welded/fully locked diff will send you sideways in aggressive turns pretty easily. The VLSD would be a better choice for non-drifting situations.

[sw20>>s14]

itll push-under on hairpins and high entry speed turns...and in the rain...its gone...

[crazy9ceguy]

how is it on the driveshaft?

[SpeedMonkeyInc]

More stress on the driveshafts, but nothing you would have to worry about. I have never heard of anyone breaking S chassis axles ( without drag slicks )

VLSD would be the better choice for grip as stated above.

[krustindumm]

More stress on the driveshafts, but nothing you would have to worry about. I have never heard of anyone breaking S chassis axles ( without drag slicks )

Mis-assembled clutch type diffs will break [lots of] axles on street tires.

I live my welded over open in any situation, even in rain. I have yet to try a torsional type though. VLSD is probably the best bet for most people though. You can always weld your stock diff and through in a VLSD if you don't like it. Your only out like $20 for dgear lube if the welded isn't for you.

[blu808]

some info on the welded.

http://www.shockdrifting.com/weldlocd.html

[SpeedMonkeyInc]

Mis-assembled clutch type diffs will break [lots of] axles on street tires.


How do you assemble a clutch type diff so improperly that it breaks an axle? Diffs don't break axles.... engine torque does. Who do you know that didn't know how to put together a diff that for whatever reason was disasembled, and then broke [lots of] axles trying to use it? Untill I am proven otherwise I call horse$h1t.



( edited for grammar, still bad I know but better )

[wootwoot]

If you made the locking point accidently at a different point than the other, one side would lock while the other tried to spin

[krustindumm]

How do you assemble a clutch type diff so improperly that it breaks an axle? Diffs don't break axles.... engine torque does. Who do you know that didn't know how to put together a diff that for whatever reason was disasembled, and then broke [lots of] axles trying to use it? Untill I am proven otherwise I call horse$h1t.

Yeah, that was my first reaction. One of my friends got a [brand new] Kaaz that had been misassembled (not sure what was wrong, I think he said something about a misaligned clutch disc). Basically one side was always locked, Kaaz says ~1 in 1000 have the problem. He destroyed 2-3 axles (maybe it was more than that) before he got it fixed. The engine is a RB25DET on the stock turbo, so it has power, but not enough to be breaking axles the way he was.

[SpeedMonkeyInc]

Huh, I'll be damned. So what, was the diff sending ALL the power out only one side?

[krustindumm]

no idea what it was doing, but it was crazy. One of them it sheared the output shaft splines right off, mirror like surface with razor edges where the axle flange is supposed to be.

[hi.im.kaji]

eww....i changed my diff oil yesterday....it smelled so bad, my friend threw up.....hehehehee

[TheSquidd]

If you ever intend to race on a tight twisty canyon road, I recommend against the welded diff. It's freaking awesome everywhere else though ^_^. Lots of grip, predictable, controlled oversteer.


I can't speak from experience on VLSD though.

[420sx]

vlsd is ok. clutch type is better. 2 way for drift. 1.5 for road race auto-x and drag

[Nan Desu Ka?!]

drift= welded, 2-way
grip= 1.5way/vlsd (although once it gets hot it will act as an open)/helical/quaiff(sp?) style.

thats from about a year of hearing everyone's side of the story. I have heard soe people say they like their welded for grip too... but too many others have had experience with understeer when both wheels are pushing going into a hight speed, high angle turn.

[EchoOfSilence]

i think this is a pretty dumb question

vlsd's act somewhat open and somewhat lock when its fluid warms up due to motion
welded diffs are basically just for... drag and drifting. if you try to take a tight corner, your tires will scuff and you'll pretty much understeer, not very good.

you want a grippy diff? get an hlsd. Hell, get one from an s15 specr. they're like $400

[JDMark]

2-way clutch types are perfect for grip/mountain driving as long as its not too sharp/slow, just gotta know what your doing. grippy and predictable tires help alot.

[Silverbullet]

anyone daily drive on a welded diff? lol

im trying to get the feel for one but no one in my area that i know of has a welded diff. :fruit:

[Saltman]

I daily drive the welded. It's not too bad, just when turning at slow speeds and driving around in parking lots w/ the wheels squeeking. Other than that, it's a donut monster and awesome to drift.

[exitspeed]

you want a grippy diff? get an hlsd. Hell, get one from an s15 specr. they're like $400

I have VLSD now. It's better the open, obviosly. But I think I'm gonna go this route next summer for AutoX. I've seen the hsld's from S15's around every so offen, just not a ton.

[240silvia]

All I'm going to be doing is mainly drag and some drift. So I think the welded would be for me. Cheaper, and I'm not going to be taking any high speed, high angle turns.

[allmotorKA]

...you want a grippy diff? get an hlsd. Hell, get one from an s15 specr. they're like $400

$400??...with output shafts?...where can I get an S15 HLSD for that price.

[SpeedMonkeyInc]

i think this is a pretty dumb question


I don't think its a dumb question, and the person asking it didn't think so, so why don't you keep it to your self? People are trying to learn. Be nice!

[raging panda]

I used to think that welded diff wasn't for grip racing, but after reading a few articles in grass roots motorsports, ive read about at least 2 road racing cars that i can vividly remember running with welded diffs, one was a datsun 510, and one was a 80s firebird that ran in the mustang camaro/firebird series. I would have to say that the welded diff might do it if this many people are using them in road racing, at those higher speeds, your tires never really start chirping like at low speeds, so you never really notice, only thing i can think of is during braking, you might slide your rear out if you come in too hot and try to turn while braking. Even F1 cars with their e-diffs run full locked for most of the race, only in real tight corners does it slip.

[wootwoot]

I'm going to have to recommend phantom grip

[Sil Beer S13]

welded is super understeer followed by super over steer. i had it on my old S13 it was weak sauce. get a vlsd.

[JigokuZ]

I've been driving on welded diff. for about a year now... I love it... You really have to learn a way to drive it to its fullest....

[krustindumm]

anyone daily drive on a welded diff? lol

im trying to get the feel for one but no one in my area that i know of has a welded diff. :fruit:

yeah, usually 500+ miles/week.

put 360 miles on between friday night and monday night, and then my HG blew due to some shitty *advice* I got.

[Irukandji]

Yeah, that was my first reaction. One of my friends got a [brand new] Kaaz that had been misassembled (not sure what was wrong, I think he said something about a misaligned clutch disc). Basically one side was always locked, Kaaz says ~1 in 1000 have the problem. He destroyed 2-3 axles (maybe it was more than that) before he got it fixed. The engine is a RB25DET on the stock turbo, so it has power, but not enough to be breaking axles the way he was.


i call bullshit.

post pictures. misassembled clutch type diffs wont break axels. if your friend broke 2-3 axels hes an idiot for replacing them over and over in the first place.

dont post false information just to get your post counts up.

[Irukandji]

drift= welded, 2-way
grip= 1.5way/vlsd (although once it gets hot it will act as an open)/helical/quaiff(sp?) style.

thats from about a year of hearing everyone's side of the story. I have heard soe people say they like their welded for grip too... but too many others have had experience with understeer when both wheels are pushing going into a hight speed, high angle turn.


welded diffs can grip alright if you take a wider line. ive owned a VLSD, welded diff, and now im running a clutch type.

VLSD = good grip
Weld = good grip if you know how to drive



dont turn this thread into another "is welded okay for daily driving?"

if you have to ask the question you shouldn't be trying to get one in the first place

[FaLKoN240]

VLSD is gay. I don't understand why people waste their money. Compared to weld diff it's weak, and unpredictable.

Where's Var when you need him? I'll bring up an old saying of his.

A VLSD is like a cardboard box, it's filled with shit, and has 2 axels shoved into each side.

I've had a welded diff for I believe over 5 months. I don't have ANY complaints, the scuffing and all that other bullshit are bitch complaints. The rain, it's nothing, if you don't drive stupid, and know what your car CAN do, then don't drive bad and you won't have to worry about the consequences. I just drive slow when it rains to eliminate any chance of crashing. It probably helps that I don't run bald tires on my car as well.

I work at a go kart place and the welded diffs characteristics are very similar to the go karts we have at my work (the karts have a solid axle) To get rid of the understeer, you gotta give it gas, and be ready to counter steer. VERY SIMPLE. Either haul ass through turns, or take it easy it's your choice.

As I like to say, "Slow in fast out is better than fast in dead out."

[sLiDewAys]

how do you guys feel about the r34 clutch type diff? drift/grip because there is allways an in between.:)

[krustindumm]

i call bullshit.

post pictures. misassembled clutch type diffs wont break axels. if your friend broke 2-3 axels hes an idiot for replacing them over and over in the first place.

dont post false information just to get your post counts up.

Hi, thanks for your opinion. Call Kaaz yourself, or ask anyone from ClubFR who witnessed him break axles starting normally from a stop. He replaced the axles because (1) he thought they were just worn out, and (2) he had no idea what was causing it until he gave in and called Kaaz. No pics, because I have no way of taking pictures of something that happend 3 months ago.


BTW, fuck my post count, the mods can reset it every day for all I care, just because you have more posts than me doesn't mean your more intelligent or more experienced at anything other than hitting [Alt]+[S].