weld the dif or go VLSD

Discuss the RB20, RB25 and RB26 series engines.
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shally2186
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hey guys,i was just wondering what all your opinions are on welding ur dif to get possi intsead of just getting a vlsd rear end...everyone i kno that knows alot about cars and the RWD world like the welded dif and sum prefer it..others hate that idea and think its more a problem for a car rather than a fix...lemme know what you think.....
Modified by shally2186 at 7:10 AM 12/15/2007


AxiOn419
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I am in no way advertising another forum here, but I typed your question in google and came across this, looks like a long discussion about the same topic and has all the answers you are looking for..

http://www.tunerfriends.com/fo...=7625

Personally, welding a differential seems like a terrible idea to me unless you are only using the car as a drag/straight line car. I would image and sharp turns would be unpleasant.

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thenillaz
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I don't understand the hype of VLSD. It works almost like an open dif, its too weak. I don't know how much they run, but an s15 helical is about $400. Why waste you're money and time with a VLSD?

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shally2186
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ive had welded diffs in my car and everything was fine..just sqeelin around turns when goin slow...other than that i was able to go sideways at all times...mine must not have been welded to good tho cause one of the welds broke and shot out of the case...but as for the money issue,if you have a buddy who can weld or if you can urself--its free---

another buddy of mine had a brand new VLSD..he drove around for a while to break it in, but it **** when he attempted his first burn out with it

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lyon23
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shally2186 wrote:ive had welded diffs in my car and everything was fine..just sqeelin around turns when goin slow...other than that i was able to go sideways at all times...mine must not have been welded to good tho cause one of the welds broke and shot out of the case...but as for the money issue,if you have a buddy who can weld or if you can urself--its free---

another buddy of mine had a brand new VLSD..he drove around for a while to break it in, but it **** when he attempted his first burn out with it
I too have a welded diff on my car.. it is great for drag and I do not mind it at all. The only thing I did not like was having to buy new tires for it every 2 months while I was using it as my daily driver. IF you don't have money to pay for a top end one I would recomend a j30, z32 or q45 swap. Right now my car is not a daily driver so I kept it that way, and for getting the car sideways would not change it for the world

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BoostFab
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a few tire change will be enough $ for you to get a real 1.5way; a welded diff is almost like a 2way diff

FASTRB
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thenillaz wrote:I don't understand the hype of VLSD. It works almost like an open dif, its too weak. I don't know how much they run, but an s15 helical is about $400. Why waste you're money and time with a VLSD?
Weak? I'm running a stock 1991 240sx canadian VLSD, pushing around 400+hp on it and so far so good, dropping the clutch at 7500 with 8.5 inch wide slicks, so this is probably why the hype is there...

my 2 cents

As for welded open diffs, I got a spare one, when (or if) my vlsd breaks, I'll weld mine, seen my buddy's 500+HP Plymouth Duster with welded open gears and it held 2 consecutive years on the street & track, sold it with and no prob. Sooo.... good enough for me, price wise.

JerryRigRB240
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Welded diffs are not as bad as most people make them out to be. However this changes if you have very wide and or sticky tires (the more traction the more evident the problems become).

Personally I agree with nillaz that you should get a S15 lsd. Torsen's are awesome diffs that are equally suited to the average grip racer or drifter. Practically no maintenance, relatively cheap price, great performance and non of the wait while the outside wheel slowly gets power that VLSD's have.

IMO it's a no-brainer!

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shally2186
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so far...weldin ur open dif isnt a good thing but it also isnt that bad...just mainly depends on if you like ur **** working or working properly like it should...most importantly is the money issue..some have it to do **** right and others "deal with the sqeel" ...always good to have a welded open dif for a back up

rb25drag
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I have welded 3 Diff. 2 Daily drivers and my track car. Not 1 problem. Well besided me breaking my axles on the track car. But I prefer welded, My buddy replaced his tires 1 time in the past 2 tears. If you don't burn the tires off every time you take off then you won't have to worry about it.

lyon23- Your buddy had to be drifting alot or doing alot of burnouts. The tires do not wear that fast. My buddy drives his daily to work 67miles 1 way, and don't have that problem.

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lyon23
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rb25drag wrote:lyon23- Your buddy had to be drifting alot or doing alot of burnouts. The tires do not wear that fast. My buddy drives his daily to work 67miles 1 way, and don't have that problem.
It was my dd for everything from track to everyday travel to work...I drove it about 75 miles every day, but at work I would say 30 of those miles would happen and it was not on a straight line, it was mostly turning every 2 to 3 blocks.

240z4u
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I have a VLSD, and they are far from ideal. They wear out. I had a buddy who swore up and down that his J30 had an open rear. The diff had totally worn out with normal driving at 130k miles. They are a great cheap fix.

IMO if you are not daily driving a welded diff is a great option. I do alot of turning and quite a few U-turns, so its not great for me.

If you are considering getting a diff rear, why not have this one welded up and see what you think? Your replacing it anyway if it does not work out right?

Evan

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DriftingisLame
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What does this have to do with RB series motors?

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BoostFab
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i never had welded diff on my car. but i did have the j30 vlsd; it was **** under boost, inconsistent.

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Chaos the Xile
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thenillaz wrote:I don't understand the hype of VLSD. It works almost like an open dif, its too weak. I don't know how much they run, but an s15 helical is about $400. Why waste you're money and time with a VLSD?
cause helical diffs aren't made for drifting, vlsd will ock a lot smoother than a open diff and allow him to do jack. as a welded diff will allow you to kick the car sideways slot eaiser but tires chirp during turns and makes handling harder. Plus durability, I'd go with VLSD over welded from personal experience!


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