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slideways2004
09-03-2004, 01:59 PM
i have an open diff in my 240 right now. First question-is there anything in there or what?i'm confsed is there a differental in there or is it like empty?

I heard that a welded diff is like a 2 way lsd. Also when i have money for a real clutch-type(KAAZ) can i take this one out or since it's welded is it stuck in there? i feel like a noob on this topic
tvb96
09-03-2004, 02:06 PM
i have an open diff in my 240 right now. First question-is there anything in there or what?i'm confsed is there a differental in there or is it like empty?

I heard that a welded diff is like a 2 way lsd. Also when i have money for a real clutch-type(KAAZ) can i take this one out or since it's welded is it stuck in there? i feel like a noob on this topic

You can still take it out when its welded, you dont weld it into the case.
I would not reccomend this method.
slideways2004
09-03-2004, 02:12 PM
so your saying do not weld the diff.
Whiteyfoo
09-03-2004, 02:16 PM
i have an open diff in my 240 right now. First question-is there anything in there or what?i'm confsed is there a differental in there or is it like empty?

I heard that a welded diff is like a 2 way lsd. Also when i have money for a real clutch-type(KAAZ) can i take this one out or since it's welded is it stuck in there? i feel like a noob on this topic


There has to be something in your Differential, otherwise the power would stop at the driveshaft.
An open differential will send power to the wheel with the least resistance on it. This is bad for "power to the ground" applications, as it will not get power to the wheel that actually has traction.
A welded differential is an open Diff with the spider gears inside welded together. This allows both wheels to always turn together. It is also very hard on tires and drive line components.
A limited slip differential (LSD) is the best of both worlds. It allows for some slipage, but will just about lock up when the spinning gets too much. This is the best thing for both track and street use.
The thing is, when you turn, the inside and outside wheels are turning at different weights. If you have an open diff, they are free to rotate as physics intends. With a LSD, the are also allowed to rotate as physics intends (since there isn't enough slip to cause the diff to lock). With a welded (or locked) diff, both wheels are forced to rotate at the same rate, causing one wheel to spin slower or faster than the road surface is moving under it. This causes premature wear on tires, as one side will always drag (or spin) whenever you turn. It also stresses your driveline (mostly axels) as they are subjected to the shame twisting forces as the tires, but they can't spin independant of the speed.
Locked diffs are best suited for drag racing, or offroad applications. Your best bet for drifting will be a LSD.
And if you do weld up the diff, yes it can be removed once it is welded since you are basically welding it to itself, although you may (read: 99%) need a new pinion gear as well.
slideways2004
09-03-2004, 02:26 PM
i have made my choice- no welding. why b/c i just remembered it rains a lot in houston. in fact it's raining right now. thnx guys i had one of those quick crazy ideas. my last crazy idea was a v-mount intercooler set-up made in my garage!!
g0lden
09-03-2004, 05:16 PM
What you mean is weld the spider gears. It makes both of your back tires spin at the same speed with NO slip like a Limited Slip.
Your car will want to push straight, but you will be forcing it to turn , So you might end up hearing the back tires screech when turning.

I wouldnt do it unless its a race car and you are going in a stright line most of the time. You will nbe spending quite a bit of money on tires for the rear.


D
Flores
09-03-2004, 05:56 PM
welding diff = good for gravel, bad for pavement...
g0lden
09-03-2004, 09:39 PM
welding diff = good for gravel, bad for pavement...

Yes he said it better, and in fewer words......DAMN YOU!! :)

D
Warriortch
09-04-2004, 06:51 PM
Ok, I know all of your arguements are all very valid, but I would say a welded diff would be good for drifting only?? I know street car use and normal turns it's not good, but drifting needs that wheel lock-up to get the back end around (that's what an LSD does). and you could still remove it whenever you wanted to and put a real LSD in it.
tunedis95
09-09-2004, 07:32 PM
hey maybe you can just buy extra gears from a junk yard...i cant imagine it taking more that 30 minutes or so to swap it out.so when your gonna go drifting for the weekend put the welded gear in there and the next day swap them out. and save your old fluid so you don't have to keep buying fluid......gets the job done and its 700 dollars cheaper....hmmmmmm
Flores
09-09-2004, 08:03 PM
hey maybe you can just buy extra gears from a junk yard...i cant imagine it taking more that 30 minutes or so to swap it out.so when your gonna go drifting for the weekend put the welded gear in there and the next day swap them out. and save your old fluid so you don't have to keep buying fluid......gets the job done and its 700 dollars cheaper....hmmmmmm

If your gonna do that, just change the whole rear end... faster and no messy fluids... :)
tunedis95
09-09-2004, 08:31 PM
:eyesjack: or that
lazymofo
09-09-2004, 09:27 PM
just upgrade it to a VLSD then when u are really good at driftin then upgrade to a 2 way! thats what im doin! :thumb:
John
09-09-2004, 10:11 PM
If your car is driven on the street then it wouldn't be the best idea. However, if it is strictly a track car then a welded diff can be used. Its not the most ideal setup but it does work.
andrave
09-27-2004, 12:09 PM
if you are a newbie you need to learn to drift with the open diff first. Welding will make your car understeer like a biznatch and if you don't have the right driving techniques you will go out, push hard all day, and come home frustrated.
You have to be a skilled driver to make a welded diff slide.
also, welded diffs tend to break axles. r200 is stout but if you have more than 300 hp or so you might start breakin shit.
Craftsman
09-27-2004, 04:09 PM
Yea, don't weld it... Just save up one thousand bucks for a nice differential. You'll appreciate it in the long run... The welded diff means that you'll have excess tire wear.

Matt.
Ris4Drift
10-02-2004, 04:19 AM
welded diff is fine for a cheap ghetto drift slut. but it will not last for years on end.

as for tire wear, you will wear them just as much as a lsd almost. if your drifting your gonna kill tires. welded diff or not. that simple.
NismoFreakS14
10-02-2004, 04:24 AM
welded diff is fine for a cheap ghetto drift slut. but it will not last for years on end.

as for tire wear, you will wear them just as much as a lsd almost. if your drifting your gonna kill tires. welded diff or not. that simple.

By excessive tire wear people mean that when you aren't drifting you will be dragging the inner tire to death.

Welding a differential is sheer idiocy in my opinion. It hinders performance, and lessens the control of the car. The less control, the less safety involved, less safety involved, the more likely you are to injure yourself, your ego, and quite possibly hurt or destroy someone elses being/property. This question should never again arise.
Ris4Drift
10-02-2004, 04:27 AM
its a cheap ghetto way to do it. never said id reccomend it :)
NismoFreakS14
10-02-2004, 04:47 AM
its a cheap ghetto way to do it. never said id reccomend it :)

If you consider destroying tires, u-joints, spider gears, rings, pinions, etc. "cheap" then by all means weld it up.
ToNzOfPHuN
10-02-2004, 11:36 PM
If it is just for drifting then i say do it. Do not weld your current diff though, get a full pumpkin from a junkyard for $60 and weld that for drift purposes only. Also get yourself a spare set or wheels to put crappy tires on. This is kinda for beginners only and should last you until you get the money boost your learning curve
slideways2004
10-03-2004, 01:03 PM
i'm going z32 na vlsd b/c i'm getting a great deal on it. this way i can daily drive it, have some kind of lsd in there, and will help me learn better
andrave
10-03-2004, 01:56 PM
do you have the right output shafts? to use that diff in open diff s13 you need to get the vlsd s13 output shafts. If you find them in a junkyard then you usually find the vlsd with them and don't need the z32 unit. New from the dealer one is 150 and one 170, you need them both, they are usually 1-3 months backordered.
Just letting you know.
slideways2004
10-04-2004, 08:28 AM
do you have the right output shafts? to use that diff in open diff s13 you need to get the vlsd s13 output shafts. If you find them in a junkyard then you usually find the vlsd with them and don't need the z32 unit. New from the dealer one is 150 and one 170, you need them both, they are usually 1-3 months backordered.
Just letting you know.

yeah i know about that stuff. i'm buying it from a friend who already has it installed on his s13 :rock: he said all i need is bushing or w/e in front cuz his is messed up. thanx for the info though