The Triumph Dolomite Club - EzBoard Archive

Yer I may aswell start a new thread as I'm fascinated in the things!<br>
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I've looked up time and time again how an LSD works but don't really get it, now one of you must be able to put it in laymens terms for me <!--EZCODE EMOTICON START :p --><img src=http://www.ezboard.com/images/emoticons/tongue.gif ALT=":p"><!--EZCODE EMOTICON END--> . How does it discover theres more torque to one wheel than the other? If you had your back end on stands could you turn one wheel easily by hand? I've read about diffs that only lock when one wheel loses grip. <br>
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About the FWD lsd's having a harder time over the RWDs. Surely as it takes so little effort to spin a FWD cars wheels the lack of traction would also make it easer to lock both those wheels together. Where as with a RWD the tyres grip more equaling the speed of them would require more force wouldn't it. <br>
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Off topic but I drove a mates 1.4 saxo earlier. My god torque steer is horrible and how do you pull away fast without spinning the front tyres like a fool?! I must be one of the handful of 18 year olds who hasn't expirenced a FWD day to day, Thank the Lord! <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

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There is quite alot of information on this thread <!--EZCODE LINK START--><a href="http://www.ten-tenths.com/forum/showthr ... <!--EZCODE LINK END--><br>
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some of it technical, some of it from experience.<br>
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Have you got the new Dolly Mixture Adam? Some muppet has written some info on LSD's.<br>
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You might find this educational<br>
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G

<p><!--EZCODE LINK START--><a href="http://www.smifter1971.pwp.blueyonder.c ... >Smifter's Dolomite Sprint Website</a><!--EZCODE LINK END--><br>
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Featherweight 1974 Dolomite Sprint - Soon to be XE'd, NOS'd, Megasquirted and 5 linked Lash up to scare myself (and my wallet) senseless<br>
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2004 Smart Roadster (company car!!) - 698cc of turbo'd adrenaline fuelled rollerskate - destined to classic status thanks to Daimler Chrysler bean counters.<br>
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1997 Audi A4 2.6 to chill out after the above and fill with baby products.....<br>
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2005 Trek 1400 (ok its not a car but still fast) - <br>
a bit like Lance Armstrong but slower and fatter</p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... SMIFTER</A> at: 19/4/06 8:34 am<br></i>

In an open diff you can go round corners easily as the wheels can spin at different speeds, but it's tricky to get power down hard as all the torque goes through the fastest spinning wheel. (I once saw a BMW with a flat rear tyre that illustrated this point very well. The car was at full throttle, pulling about 5000rpm, and the flat tyred wheel was spinning like a good'un, flailing about and shredding itself. The car was barely crawling along, as no power was going to the good wheel.)<br>
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In a locked diff you get the power down evenly, but you have trouble going round corners as the wheels both have to turn at the same speed, so the only way round is sideways. <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D"><!--EZCODE EMOTICON END--> <br>
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The limited slip diff allows the wheels to turn at slightly different speeds (i.e. enough to get round corners), but once the difference gets to a pre-set level the diff will allow no more slippage to occur.

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Porsche had a lot of success at Le Mans with no diff at all in the 935. Probably not so good for road use though.<br>
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Jod

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Dunno. Know a few people, mostly bimmer/vaux drivers, who use welded diffs (so effectively no diff) on the road.<br>
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Very finikity in the wet/snow though - and causes severe understeer in some instances. I guess that'd be the 'push-on' effect.<br>


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I think I'm well on my way to killing my 3.63 diff so I may weld it up for a laugh <!--EZCODE EMOTICON START :p --><img src=http://www.ezboard.com/images/emoticons/tongue.gif ALT=":p"><!--EZCODE EMOTICON END--> <br>
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The only spare I got is a 4.11, should be fun <!--EZCODE EMOTICON START :D --><img src=http://www.ezboard.com/images/emoticons/happy.gif ALT=":D"><!--EZCODE EMOTICON END-->

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should be good fun around your favorite roundabout

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Won't it make it a bit high-revving for motorway type journeys?<br>
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well it rattles like hell at the moment so I sit at about 60... Shouldnt be to bad.<br>
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Are locked/welded diffs illegal?

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Not illegal I don't think, although expect your halfshafts to have a limited life on the road!<br>
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My Bro in law has just acquired an 84 Toyota Starlet with a rover 3.9 V8 (scary car!) and a welded up SD1 diff - that seems to work quite well.

<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... SMIFTER</A> at: 21/4/06 7:21 am<br></i>

The Starlet wouldn't be a Ex National Hot Rod by any chance.<br>
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Fully stipped shell now road legal.<br>
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But with a 3.9 Motor?.<br>


<p>1980 Dolomite SprintV8 (Soon to be shoehorned with a 360bhp of TVR AJP V8 Pumping Alloy !)<br>
2002 Citroen Xsara 2.0 HDi Estate.... Part's delivery Vehicle.<br>
They laugh at me because I am different. I laugh at them because they are all the same!)<br>
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http://www.triumphowners.com/310 </p><i></i>

Not sure of its history but its been its built for drifting - with steel wheelarch extensions! Certainly not road legal!<br>
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Its crude but effective.<br>
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<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... SMIFTER</A> at: 21/4/06 10:12 pm<br></i>