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View Full Version : welded dif pros and cons


SLYDNBY
11-30-2008, 06:22 PM
just wondered if someone can give me some info on some goods and bads about welding a dif this car will most likely be drivin daily and really dont want to spend a 1000 into the rear end its an 97 240sx any info will help thanks.

hOngsterr
11-30-2008, 06:27 PM
lol buy a diff from craigslist or on zilvia then wield it if its not wielded already
and it shouldn't cost up to a G to wield ur diff.
i know a mech in HB will do it cheaper.

Andrew Bohan
11-30-2008, 06:30 PM
http://zilvia.net/f/tech-talk/178209-welded-diff-q.html
http://zilvia.net/f/tech-talk/136391-welded-diff-lsd.html
http://zilvia.net/f/tech-talk/135579-everyday-driving-welded-diff.html
http://zilvia.net/f/tech-talk/129766-welded-diff.html
http://zilvia.net/f/tech-talk/79318-question-owners-welded-diff.html
http://zilvia.net/f/tech-talk/85165-j30-q45-vicous-welded-diff.html
http://zilvia.net/f/tech-talk/67854-how-long-will-axles-last-welded-diff.html

etc

Sil-Eighty SE-K
11-30-2008, 06:37 PM
pros= EVERYTHING
cons= chirpy tires turning slow :)

!Zar!
11-30-2008, 06:56 PM
cons= shitty tires chirp when turning slow :)

fixed .

LA_phantom_240
11-30-2008, 07:03 PM
I can't speak from experience, but I hear in the rain that taking turns without 100% dedication to throttle manipulation ends up with the rear being squirrely.

Andrew Bohan
11-30-2008, 07:20 PM
solution = know how to drive

0displacement
11-30-2008, 07:21 PM
you could buy a vlsd for 200$.

you will go through tires pretty quick with a welded

!Zar!
11-30-2008, 07:24 PM
I can't speak from experience, but I hear in the rain that taking turns without 100% dedication to throttle manipulation ends up with the rear being squirrely.
Not true.

Only if you drive like a 12yr old asian girl.

you could buy a vlsd for 200$.

you will go through tires pretty quick with a welded
I'd rather have an open diff.

How do you think you'll go through tires quickly with a welded?

SLYDNBY
11-30-2008, 07:26 PM
so i decided to weld sounds more fun and saving money thats my type of fun thanks everyone for ur help

0displacement
11-30-2008, 07:38 PM
with a welded u go through front and rear tires quickly...

rear tires because its impossible not to spin them around every turn on the weekend

fronts because when your just driving around the diff is trying to make your car drive straight. when you turn your front tires are fighting your rears and it wears them down rather quickly..

SLYDNBY
11-30-2008, 07:44 PM
is this dangerous at fast speeds??? like between 100 - 130 or any highway driving at all cause all my friends have 900 hp evos, bmws and porsches and everything else there is lol so i at least want to b able to drive on highway with them???

SLYDNBY
11-30-2008, 07:46 PM
and im not really worried about tire wear lol i have about 20 pairs of rear tires for rear and 10 for front i dont pay for tires so thats not a factor i just want to kick this thing sideways all over the streets but want to be somewhat safe ya know

blueshark123
11-30-2008, 07:51 PM
anything is dangerous when u drive at those speeds on a highway dumbass but the welded will be fine at those speeds

blueshark123
11-30-2008, 07:55 PM
and for those who say they wear their tires more because of the welded diff is because they get a welded diff then go drifting around and then say (omg i wasted my tires so much quicker) but if u drove it normal u wont waste the tires to much more then a vlsd or whatever

n1smo413
11-30-2008, 07:55 PM
it won;t wear your front tires where you could ever notice it,or your rears if your just driving.Its fine on the highway to.Once your over 15 mph you don't even notice the welded diff.If you can drive its fine in the rain to.I drove my car last year through the winter with the diff welded.It was fun as hell.If you know how to drive you'll be fine.

BlueKpS13
11-30-2008, 07:55 PM
with a welded u go through front and rear tires quickly...

rear tires because its impossible not to spin them around every turn on the weekend

fronts because when your just driving around the diff is trying to make your car drive straight. when you turn your front tires are fighting your rears and it wears them down rather quickly..

...youre an idiot

the welded diff doesnt allow the inside wheel to spin and a diffierent speed the the outside wheel, it DOES NOT AFFECT the front wheels. youd will eat tires alive with a welded.

welded diff is best for a KA, with lower power because the diff will create and easier initiation because of the loss of traction (wheel hop) on the inside wheel

a vlsd is best for a CA, SR or most other turbocharged/boosted motors, because, just power over

in my previous experience, a welded differential isnt a bad choice, use it while saving for a 2 way

0displacement
11-30-2008, 08:00 PM
...youre an idiot

the welded diff doesnt allow the inside wheel to spin and a diffierent speed the the outside wheel, it DOES NOT AFFECT the front wheels. youd will eat tires alive with a welded.

welded diff is best for a KA, with lower power because the diff will create and easier initiation because of the loss of traction (wheel hop) on the inside wheel

a vlsd is best for a CA, SR or most other turbocharged/boosted motors, because, just power over

in my previous experience, a welded differential isnt a bad choice, use it while saving for a 2 way

your an idiot. when the rear wheels are locked up "welded" and u try to turn, the diff tries to make the car go straight.. have you ever driven a welded diff car? its a bitch to turn because you are fighting the diff. its not eating the shit out of the tire but it wears them a LOT faster.

and yes, the reason you go through more tires in the rear (as i said b4) is because you want to sling it around every corner you see..

n1smo413
11-30-2008, 08:05 PM
you guys are making it way to big of a deal.its cheap,reliable, and it works.I know sr guys and ka and ka-t guys that use it.Works good for all of them.ITs so simple.Makes both wheels turn at the same time,all the time.

0displacement
11-30-2008, 08:07 PM
lol truth.

i weld them all the time... they are fun as shit and cheap. thats for sure.

im sure he realized the pros, i think he just wanted more of the cons.

BlueKpS13
11-30-2008, 08:08 PM
i think if you learned how to drive a car with a welded diff youd understand, ive had nothing but welded diffs in my cars

yes the rear tires do go faster...when you are drifting or sliding around or under harsh acceleration, but if you drive normally they shouldnt go too much faster than an open diff.

and if youre a mature driver, you wouldnt want/have/need whatever to "sling it around every corner you see"

ae13bravo
11-30-2008, 08:17 PM
You should ask Addicted2Kouki. He will tell you of how much fun it is to drive it in the rain. (http://zilvia.net/f/chat/226650-alksjd-f-i-officially-hate-rainy-days-hydrolock-rant.html)

!Zar!
11-30-2008, 08:28 PM
So much fail in this thread.

WAY too much misinformation.

lolollol.

Andrew Bohan
11-30-2008, 08:28 PM
the differential was invented so the inside and outside wheels could turn at different speeds, because the inside wheel has less distance to travel than the outside wheel for any given turn.


what most people fail to understand is that, as the radius of the turn increases, the difference in distances that the two wheels must travel decreases. that's why you only hear the tire chirp or skip on tight turns in parking lots, etc.

any turn that you'll take at 100mph is so wide that it really doesn't make a difference

SLYDNBY
11-30-2008, 08:35 PM
zar explain???

Addicted2Kouki
12-01-2008, 03:06 AM
You should ask Addicted2Kouki. He will tell you of how much fun it is to drive it in the rain. (http://zilvia.net/f/chat/226650-alksjd-f-i-officially-hate-rainy-days-hydrolock-rant.html)

LOL yeah. KA-t + heavy rain + welded diff = no traction

nieko
12-01-2008, 03:25 AM
agreed with ZAR!

sooo much misinfo...

lol

and its funny, i do notice the difference with shitty tires and good tires, the squeakiness(sp?) is pretty much gone with good tires, little more clunky though.

SLYDNBY
12-01-2008, 07:11 AM
you people that say that there is mis info explain what are people wrong about?????

g6civcx
12-01-2008, 08:52 AM
what most people fail to understand is that, as the radius of the turn increases, the difference in distances that the two wheels must travel decreases. that's why you only hear the tire chirp or skip on tight turns in parking lots, etc.

any turn that you'll take at 100mph is so wide that it really doesn't make a difference

Just to clarify, each rear wheel must turn around a different radius for the rear axle to pivot around a center point.

The difference between the radii of each wheel is FIXED! The rear track is constant unless you have some strange setup that can vary the width of your track.

What's difference is the wheel speed. The inner wheel travels on a smaller circle, while the outer wheel travels on a larger circle. The distance between the radius of the inside wheel and the outside wheel is constant.

It is the wheel speed between the two wheels that varies based on the radius of the turn.

The larger the turn, the less difference in wheel speed. The tighter the turn, the more difference in wheel speed.



As a sidenote, using corner speed to judge corner radius is not the correct way. It's the other way around. You use the effective radius to judge corner speed.

Carry on :naughtyd:

SLYDNBY
12-01-2008, 10:22 AM
lol im not sure what u really said but it sounded neat

LA_phantom_240
12-01-2008, 11:20 AM
lol im not sure what u really said but it sounded neat

In a nutshell, when you turn, the inside tires make a tighter turn (smaller radius) than the outside tires.

g6civcx
12-01-2008, 11:29 AM
In a nutshell, when you turn, the inside tires make a tighter turn (smaller radius) than the outside tires.

As the radius of the turn approaches infinity, i.e. going in a straight line, the difference between the two wheels approaches zero.

When you go straight, the two wheels rotate at the same speed.


When you go in a very tight turn, the two wheels turn at very different speeds.

The less tight the turn, the less the difference in wheel speeds would be.

LA_phantom_240
12-01-2008, 11:35 AM
As the radius of the turn approaches infinity, i.e. going in a straight line, the difference between the two wheels approaches zero.

When you go straight, the two wheels rotate at the same speed.


When you go in a very tight turn, the two wheels turn at very different speeds.

The less tight the turn, the less the difference in wheel speeds would be.

I understand the topic at hand here, I was just oversimplifying.

g6civcx
12-01-2008, 11:37 AM
I understand the topic at hand here, I was just oversimplifying.

My comments are not directed at you. I think some of us haven't had calculus yet :)

LA_phantom_240
12-01-2008, 04:40 PM
My comments are not directed at you. I think some of us haven't had calculus yet :)

Ah. I haven't even attempted calculus... I just excel at practical applications of mathematics.

roddogg
12-01-2008, 05:54 PM
it all comes down to how much money do you want to spend. If you have the money to get a good lsd go for it or just weld it it's cheap and it works i have one in my s13 it's been in there for 3 years and was run in my freinds car before my for about 2 years and it is still good!! as long as the person welding it knows where and how to weld it their's nothing wrong with a welded diff if you don't mined the cherping and the little of wheel hope when turning sharp
SO GO GET IT WELDED

roddogg
12-01-2008, 05:57 PM
if you want ill weld one for you and send it to you for the right price

unlegendary
12-01-2008, 06:09 PM
uh...? all this talk about shitty tires just reflects that you either mess around on the street TOO MUCH or man up on the track. so which is it? cause i know with good welds on the diff and decent tires, the tire will not shred. i can predict 2 months off tire life if the car is daily driven and taken to the track a few times. if you take your car to the track, you gotta buy spare tires anyway.

so what are your answers saying huh? wtf? i smell rice on the street.

edit:

3rd post in this thread, andrew bohan already owned this. lock.

thefro526
12-01-2008, 06:16 PM
Here's my review thread, I didn't really read any of the other posts because welded diff threads tend to draw a bunch of random arguing and other childish things.

http://zilvia.net/f/chat/207490-my-s13-welded-differential-review.html

Skim through it and you'll get an idea of my experiences with my diff.