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I think most plate diffs are 1.5 normally arent they, mainly so there is less chance of lockup on decellaration.
To be honest Ian, if your diff is as tight as the one in my monza then you could use it for drifting as it is.
Compared with a standard capri atlas LSD they are so much tighter and I have never had any problems at all with mine.
If you do want to make it tighter then changing the oil to a different grade is a good place to start.
A plate diff thats been modified can be as good/tight as a locked diff in anycase, its just that it will need overhauling more frequently, either reshimming or new clutch plates.
After I built up the plate diff in my MK1 escort I ran it for 3 years autotesting without it loosening up at all.
Always been intrigued by the locker type diffs. Be interesting to try one at some point. Totally different, as I understand it they are permanently locked normally and only become open when cornering, but if you boot the throttle they lock again. I`ve heard they are quite rough but I suppose if you are drifting that would be fine.
One other point regarding welded diffs, it helps if you have good axle location. On my escort, for slow speed manouvering it really winds they leaf springs up and you get some awful noises of the back end. That might be why had problems with your MG, BGTMidget.
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An LSD actually makes a car, in general use, trickier to drive on the road and in inclement conditions, so unless you're really into it that much, I'd just leave it with a standard open.
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Last Edit: Feb 8, 2007 18:12:00 GMT by Lewis
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yes, i found that on my lada when i had a welded diff in for a short time, it wound the shafts up, and the wheel jumped on tight turns.
the coffin comment maybe a little strong, but i still stick by what i say, if you want to drive a car on the road, or fast in general, an open diff or a LSD.
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topi
Posted a lot
It's a race car officer, I swear!
Posts: 1,039
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Granted, a welded diff isn't great for fast track driving in comparison with a good LSD. I see your point in that.
However, when drifting or driving normally, it is very predictable. It's simply lock all the time.... It will want to understeer if you barrel into a corner, so the solution is to go into corners a little easier and feel yourself around it. Not hard to understand really.
I have no problems what-so-ever driving my Sierra with a welder, all weathers, 52miles a day. As has been said before - as long as you know you have a welded diff, and you can actually drive properly, there's no problem.
It's like when you drive an old car with brakes that are really rubbish compared to newer cars. You KNOW the brakes aren't very good, so you allow more braking time into corners. You get used to it.
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A good point that I've seen before is that tyres are designed to work within certain slip angles and that, on all but the tightest corners, the difference in rotational speed between the offside and nearside wheels is within the slip angle of the tyres...
*n
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Top grammar tips!
Bought = purchased. Brought = relocated
Lose = misplace/opposite of win. Loose = your mum
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Mar 21, 2007 19:04:55 GMT
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Well having used both an LSD & Welded the doom & gloom merchants are way off.
My Soarer currently has a welded, I' did 10k miles in it last year & it was great except on tight roundabouts or car parks where it sort of hops a bit, fine in the wet dry whatever you would'nt notice it.
The Volvo 240 we took to Africa last year was welded too, I drove it 8k miles before the trip no probs, towed with it everything. Then drove it to the Gambia with 1.5 tons of beer & gear on board, great in the sand so long as you went straight.
LSD's are great but a decent one is well noisy, clunky & pretty awful on the road in comparison.
Drive a welded diff on the loose or in snow & your in the hedge!!!!! don't know where that idea came from of being ok on the loose they are bloody terrible, you will go straight on unless your on the handbrake or coming at the corner sideways to start with.
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Resident Toyota Geek Current Fleet: HDJ81 Landcruiser, GZ20 Soarer, JZX81 Cresta
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Colonelk
Posted a lot
Posts: 3,742
Club RR Member Number: 83
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Tell me about welded DiffsColonelk
@colonelk
Club Retro Rides Member 83
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Mar 21, 2007 21:04:38 GMT
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BC, if you want a run in my white carlton with a welder then give me a shout as itll be coming off the road next week (finally!) as the MOTs running out. Its getting insured as I'm doing Donington on saturday.
And to add to the quotes. Value wise, welded diffs are ace. Ill find out how mine reacts to a track this weekend, but for daily driving, and drifting, bloody ace. The VLSD in the senator is about 1100% less predictable on the limit ;D
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Last Edit: Mar 21, 2007 21:05:55 GMT by Colonelk
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Mar 21, 2007 21:57:46 GMT
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My Sierra Cosworth track car has a LSD that is a viscous coupling pumped to a very high pressure. This makes the limited slip even more limited. It is not locked but it feels very tight. On slow corners the inside wheel tends to shudder. At any normal driving about five MPH and on any corner that us not full lock it feels fine.
I guess a welded diff feels much the same. It seems like such a cheap option to me.
Does anyone have pictures of exactly what you weld to what in a diff?
Charlie
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Last Edit: Mar 21, 2007 22:09:28 GMT by charlie
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Nick
Posted a lot
Posts: 2,483
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Mar 21, 2007 22:48:08 GMT
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i stil don't get why people bother welding plates in...waste of time.
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idea stolen from rattely eddie.
this weeks car count "5"
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Colonelk
Posted a lot
Posts: 3,742
Club RR Member Number: 83
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Tell me about welded DiffsColonelk
@colonelk
Club Retro Rides Member 83
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Mar 21, 2007 22:49:17 GMT
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yeah, my rally chap who did my first one just put 8 lines in, one from each cog to the central casing and said it would be fine!
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