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Welded diffs?Robinxr4i
@robinxr4i
Club Retro Rides Member 143
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I was in WH Smiths the other day flicking thought Fast Ford....... ....and they are building a Ford Sierra 2.0 DOHC drift car, they have stripped it, fitted coil overs and welded the diff (cause they are doing it on a budget and a desent LSD cost ££££) What the law says about welded diff? Are they road legal? Is it an MOT failer? Just wondered cause in the mag it said in the wet the car went sideway with little or no provocation!!!!!!  Sounds a bit dangerous but LOADS OF FUN ;D |
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Sierra - here we go again! He has an illness, it's not his fault.
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skinny
Part of things
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Total Vauxhall did the same to their project drifter Omega MV6...
Be interesting to hear about this one.
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J.P
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I like to eat ice cream and I really enjoy a nice pair of slacks.
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don't know what exactly it would fail MOT on with having a Welded diff but I'm sure theres something.
They are very dangerous on the road, try taking any bend and the back will try and step out. Try driving discreetly round a town and any time you turn a corner slowly your inside wheel will squeal and it can hop/skip/jump about wildly. Usually end up coasting round bends etc with the clutch in which is almost bad.
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v8ade
Part of things
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what about mot time as they check the brakes independently on the roller does the other roller go in to free running it will be the same suppose with LSD any mot guys out there.
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V8 on open headers at full throttle "Heaven"
Jaguar xf SportBrake
rover 820 Turbo vitesse
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Nick
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Posts: 2,483
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They are very dangerous on the road, try taking any bend and the back will try and step out. . absolute utter rubbish, welded diffs if anything create more understeer unless you provoke the car to oversteer. a whole lot more rear end grip at the back, causes the car to push on. i only get any tyre chirping noises when i am performing very tight full lock 3 point turns. |
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idea stolen from rattely eddie.
this weeks car count "5"
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MWF
Posted a lot
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rwdnick is your man for info on this, it's a very popular thing to do on places like TrampDrift.
All the people I've spoken too, read about, have found welding the diff a great modification but one that should be treated with care. I believe most are a little embarrassed by the squeaks and chirps when pulling out of junctions in town. Also the car can have a tenancy to understeer on tight wet roundabouts.
I think it's like any car modification really, you've got to treat it with a bit of respect which the drifts boys seem to do.
I don't know about the MOT issues though, not heard of any problems there but I believe fixed diff trikes and quads are illegal for road use?
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Nick
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exactly dude.
if you understand what a welded diff does to the dynamics of your car and bare that in mind, there is absolutely no need forit to cause any danger.
obviously there are sacrifices, such as reduced turning circle, slight tyre wear increase and some chirping noises. but its a budget performance mod, its not a "oh ive got nothing else to do on my car i might aswell weld the diff up"mod.
i did it because my hobby is drifting, i like to go sideways in cars, and it makes a lot more sense to me to do that than to buy an expensive LSD.
its a lot safer in some aspects than having an open diff or an LSD.. i only say that coming from a drift frame of mind. as when drifting i know the back wheels will always be locked and predictable. unlike a standard LSD on most road cars, which are low locking and arent that predictable at times.
if i didnt have my drift hobby i probably wouldnt bother with welded diffs.
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idea stolen from rattely eddie.
this weeks car count "5"
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some quads are in the class as cars for MOT and have fixed axles. a car with a welded diff cannot be tested on brake rollers and will need a deceleration test using a tapley meter.
welded diffs are not an mot fail.
Paul
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Nick
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bingo. they just have to use the decelerometre thing, same as if you have a fancy lsd (brake rollers arent good for them either) my mot the other month they still stuck my car on the brake rollers. that was fun.
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idea stolen from rattely eddie.
this weeks car count "5"
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With regards to MOT`ing it is pretty much the same for an LSD or a vehicle with permanent 4 wheel drive. Inform the tester before he carries the test out and normally they will do a road test instead.
And with regards to welded diffs, what nick says is pretty true. Few points I would add though. If you do a lot of road miles and you use the car as a family car I wouldnt recommend it, it puts a lot more strain on bushes and suspension joints and you will find they wear out a lot quicker. If your spending your time sideways you expect things like that to wear out faster anyway, so its not a problem
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all i know is when i apply the diff lock on the tractor i can donut with ease in mud  |
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 once again rocking with 1117cc and 4 gears! |
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....and they are building a Ford Sierra 2.0 DOHC drift car, they have stripped it, fitted coil overs and welded the diff its not a black 5 door hatch is it? sounds like jonnysierras old one, but thats already been done and abused on the drift cicuit. I think he should have brought it back when he was offered it  |
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loon
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sounds good to me. The banger boys (and girls) used to do it which gave them good grip from a standing start , but this ocasionaly came at a cost when they wern't welded propely as they tended to break the diff... Not a budget mod if you have to replace it.
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what the fcuk have you done lately
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Nick
Posted a lot
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weld it properely and it will be fine, arc was used on my first welded diff and the last few have been mig'd. never actually seen a welded diff fudge up, i know of people welding them willy nilly and leaving weld slag and all sorts of curse word in the diff and its ended up munching the CW&P. like anything do it right first time and you should be fine.
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idea stolen from rattely eddie.
this weeks car count "5"
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SidewaysGTM
Part of things
Spending my time at the Race track, Pub or in an Engine
Posts: 227
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..... a car with a welded diff cannot be tested on brake rollers and will need a deceleration test using a tapley meter...... Reminds me when dad got the motorhome tested was gone for quite a while wondered where he was at, turned out the tester didnt relise it had a LSD and it got well and trully stuck in the brake tester toke a while to get it out, they then tore up and down the yard with the taley meter, No beers/fizz pop in the fridge where hurt tho just shaken up ;D WEST |
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Live life sideways, Honda Powered GTM Coupe, you better belive it GTM Coupe VTEC Constant progression and acceleration 67' Triumph Vitesse 2ltr [finally decided what to do with it, at the planning stage] 92' Mini nearly std [SOLD and Missed] GTM ownersclub forum |
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Sorry but telling people that welded diffs are a good idea on the road is thoroughly irresponsible. DON'T do it - I've lost too many friends - yes DEAD! and badly injured, through using welded diffs on the road. You get it wrong you've lost control - fine on the drift circuit where usually all you've got to hit is a cone but on the road, loose control and you either end up in a tree or a car coming the other way. keep them for cheap forms of motorsport but please don't be a tight  and use them on the road. Fast Ford may well have done it and to me that's very wrong if they've told you you can use it on the road. I will have a word - yes I work for them on a freelance basis. Call me a girl if you like but wleded diffs are bad news - quickest way to write off your car. Rant over, Cheers, Jon |
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Mk1 Cortina Wagon
Chopped Minor 2-dr
54 Minor Traveller x 0.5
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topi
Posted a lot
It's a race car officer, I swear!
Posts: 1,039
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Just saw this.
I use a welded diff on my Sierra 5door twincam. I drive the car 26miles to work each day, through country lanes, in all weather. It's also my first car.
I can see why people would be wary of them, but after driving the car a little it was obviously nothing to worry about.
As Nick pointed out, you KNOW you have a welded diff, so you allow for it in your driving. And by allowing for it, I mean you don't go into corners as fast, as you will get increased understeer.
I still have to put a fair effort into getting the car sideways, and I can pretty much guarentee I wont 'loose it' around a bend unless I flick the car in and nudge the clutch. And Even if the back end did come out unwanted, I reckon I would be able to catch it or at least safely spin/stop the car because of the practice I've had at making the car loose traction on purpose. The only time a welded diff is an inconveniance, is when you are driving around a carpark, with the police watching your inside wheel skip and squeel.
Oh, and I drove to Scotland a few months ago with Dan from FastFord (he was in the Sierra previously mentioned in this thread). No problems what-so-ever.
So the conclusion is:
As long as the diff is welded properly, and you can drive properly.... you're fine!
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Welded diffs?Robinxr4i
@robinxr4i
Club Retro Rides Member 143
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Fast Ford may well have done it and to me that's very wrong if they've told you you can use it on the road. I will have a word - yes I work for them on a freelance basis. Fast ford never said that it was a good idea for a road car, thats why I posted this thread to find out what the pros and cons where. Half seems to say that I die if i weld my diff and the other half seem to say that it will be fine if you are sensible! |
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Sierra - here we go again! He has an illness, it's not his fault.
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like was previosly stated, after approx 4/5 mins of driving one you'll get the feel of what its going to do, its not at all dangerous, its just as dangerous as a tight 2 way lsd. ive driven cars with alot of different diffs, and my AE86 has a tight 2way LSD, and it will understeer just as bad on a wet roundabout and will kick the tail out just as easy? s whats the difference? about 700quid! go go welded diffs theres no differenve in the danger factor, and anyone that gets their diff welded is surely into going sidways anyway? its WAYYY safer and more predictable that lashing a car with an open diff into a corner to get it sideways in my experience |
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Why you always bring me junk!
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topi
Posted a lot
It's a race car officer, I swear!
Posts: 1,039
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Fast Ford may well have done it and to me that's very wrong if they've told you you can use it on the road. I will have a word - yes I work for them on a freelance basis. Fast ford never said that it was a good idea for a road car, thats why I posted this thread to find out what the pros and cons where. Half seems to say that I die if I weld my diff and the other half seem to say that it will be fine if you are sensible! The half that say it'll be fine, actually use welded diffs regularly  |
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