welded diff

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carlrst
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Wed May 13, 2009 12:33 am

does anyone have one fitted, wot are they like to drive with normally aswell, they obviously wont be very good at slow speeds but is there any other problems with them
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Boyraceruk
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Wed May 13, 2009 2:46 pm

Understeer and squeaking tyres going around corners. Hell to park. Otherwise no known issues apart from INSTANT DEATH!

Sounds like you might need to chat to the boys over at Trampdrift.
carlrst
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Wed May 13, 2009 11:10 pm

lol sounds like fun :D
kev_skyline
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Thu May 14, 2009 10:02 pm

theyre fine i drive with one every day, once you have some cop on youll get used to it in no time and have lots of sideways fun in the wet and lots of grip in the dry :cool:
carlrst
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Thu May 14, 2009 10:04 pm

rele, thats sounds alright, ive heard nothing but bad news using them on the road
kev_skyline
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Thu May 14, 2009 10:45 pm

all them bad stories are generally from people who have never driven with a welded diff.
carlrst
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Thu May 14, 2009 10:46 pm

true true. are the diffs hard to change
M3Jim
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Thu May 14, 2009 10:54 pm

Why not compromise and get a 75% motorsport diff
carlrst
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Thu May 14, 2009 10:56 pm

were can you get one from, would it cost more than the car :D
M3Jim
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Thu May 14, 2009 10:56 pm

Why not compromise and get a 75% motorsport diff
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roy46ss
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Thu May 14, 2009 11:06 pm

Quaife do one for around £500. It really is a quality bit of kit and worth the money if you ask me I should have one fitted soon.Oh and I wouldn`t take a car with a welded diff out on the road, In the wet its even worse than a race spec 2-way lsd if you have to lift off the power in a bend the outside wheel cant rotate faster than the inside wheel and you end up facing the way you came befor long.
Last edited by roy46ss on Thu May 14, 2009 11:11 pm, edited 2 times in total.
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carlrst
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Thu May 14, 2009 11:08 pm

mmmmmmm now im tempted
:)
M3Jim
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Thu May 14, 2009 11:11 pm

I was tempted with the Quaife, the problem is, it's so well designed to STOP wheel spin (if you know what i mean) winkeye.
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Thu May 14, 2009 11:12 pm

isnt the quaife one nearer £700? i was looking at them a while ago.
M3Jim
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Thu May 14, 2009 11:13 pm

And no the diff is not hard to change, the internals are a bit tricky tho!
carlrst
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Thu May 14, 2009 11:13 pm

M3Jim wrote:I was tempted with the Quaife, the problem is, it's so well designed to STOP wheel spin (if you know what i mean) winkeye.
yeah we woulnd want that now would we
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Thu May 14, 2009 11:15 pm

Exactly!
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roy46ss
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Thu May 14, 2009 11:17 pm

Its designed to slowly transfer the power from the wheel with less traction to the one with more without locking-up suddenly. It makes the car more predictable.
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
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roy46ss
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Thu May 14, 2009 11:19 pm

fuzzy wrote:isnt the quaife one nearer £700? i was looking at them a while ago.
Sorry my mistake its £625 8O for the ATB unit part # QDF2N2
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
carlrst
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Thu May 14, 2009 11:20 pm

lol no longer tempted :eek:
M3Jim
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Thu May 14, 2009 11:23 pm

roy46ss wrote:Its designed to slowly transfer the power from the wheel with less traction to the one with more without locking-up suddenly. It makes the car more predictable.
Indeed, if thats what you want. I'm guessing that someone that is considering locking their diff is not looking for predictable. :mad:
carlrst
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Thu May 14, 2009 11:25 pm

na im not , if i was id buy a corsa lol
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roy46ss
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Thu May 14, 2009 11:28 pm

Well then theres only one thing to do, get the welder out and do a rain dance. winkeye
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
M3Jim
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Thu May 14, 2009 11:28 pm

carlrst wrote:na im not , if i was id buy a corsa lol

:D :D :D :D
carlrst
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Thu May 14, 2009 11:30 pm

roy46ss wrote:Well then theres only one thing to do, get the welder out and do a rain dance. winkeye
hahahaha
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Felix79
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Thu May 14, 2009 11:38 pm

Why dose a welded diff help drifters?
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carlrst
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Thu May 14, 2009 11:39 pm

something to do with both weheels spinning at same time
M3Jim
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Thu May 14, 2009 11:44 pm

Felix79 wrote:Why dose a welded diff help drifters?
I'm guessing you don't have an lsd? :)
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Felix79
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Fri May 15, 2009 12:07 am

M3Jim wrote:
Felix79 wrote:Why dose a welded diff help drifters?
I'm guessing you don't have an lsd? :)


My Alpina has a 1/4 LSD
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roy46ss
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Fri May 15, 2009 12:10 am

when cornering hard an open diff lets all the torque spinn the inside wheel but an LSD transfers the torque to the outside wheel and when enough torque is transfered to overcome the friction of that tire with the road the back end will step out and your drifting.
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
madaboutthe30
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Fri May 15, 2009 12:14 am

Felix79 wrote:Why dose a welded diff help drifters?
Think of the rear wheels working together as oppose to independently. One wont spin without the other.

Its like the old matchbox cars we use to play with when we were kids, the wheels would only spin together at the same time as there would be one basic axle connecting them together


For those that actually know what they are talking about, am I right in thinking that? Or have I confused things even more?
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roy46ss
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Fri May 15, 2009 12:16 am

Sorry I read the question wrong a welded diff locks the diff all the time so both wheels turn at exactly the same speed always. This makes tight bends difficult and parking a nightmare. But makes drifting easier.
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
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roy46ss
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Fri May 15, 2009 12:18 am

madaboutthe30 wrote:
Felix79 wrote:Why dose a welded diff help drifters?
Think of the rear wheels working together as oppose to independently. One wont spin without the other.

Its like the old matchbox cars we use to play with when we were kids, the wheels would only spin together at the same time as there would be one basic axle connecting them together


For those that actually know what they are talking about, am I right in thinking that? Or have I confused things even more?
I`d say thats a good example. :thumb:
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
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Felix79
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Fri May 15, 2009 12:19 am

Thanks for the reply guys. So driftting with the diff is about the tourque causing the snap rather than a loss of traction? Is this how they controll it with high revs?
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roy46ss
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Fri May 15, 2009 12:28 am

A loss of traction is caused by to much torque being applied to the tires. Once the traction is lost a combination of revs and opposite lock determine the angle or degree of "sidewaysness" and the lenght of the slide.
`91 320i se, `94 Audi S2 Avant 288WHP, `12 Golf GTD
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