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Hi guys

Im looking to get a LSD fitted before we go to Silverstone in june and i cant work out which type is preferable to a Novice driver like myself im currently leaning towards the Quaife ATB purley because of price.

What effects will a LSD have on the handling of the car will it become more likley to understeer or oversteer as you know im not the most technical minded in the world so your advice would be appreciated

thanks

Ian

I'm no expert on the types but I run a Quaife ATB and am very happy. Seems to give slight understeer on intial turn in until it sorts itself out, then drives round and out the bend well with lots of grip.

Awesome traction in the wet, but you do have to feed the power in a controlled fashion otherwise it can spin up both wheels and chuck you off.

Downside number 1 is that if you do lift a wheel then it will spin away your drive.

Downside number 2 is that it "may" contribute to snapping axles, though no substansive evidence on that.

Andy

Hi Ian,

Strictly speaking the Quaife unit is not a limited slip differential (LSD) as it does not lock up - it senses the load going through each axle and adjusts accordingly. This has the effect of sending more torque to the loaded wheel and therefore has the added bonus of driving the car round the corner. An LSD on the other hand has the effect of limiting the slip but in an unsophisticated way - the effect is that it pushes the car into the corner - in other words it generates more understeer. To overcome this you need a bootful of loud pedal to get the back end to hang out and offset the understeer.

If I were you I'd go for the Quaife unit - in my opinion it doesn't have a marked effect on creating additional oversteer or understeer but does help you get the power down and you can really feel it pulling you round a corner (as opposed to pushing you off it) - just my opinion of course. You will need to get a good donor diff to put it into - make sure that you have big input and output shafts/bearings and get the end float and backlash set properly. Mike Papworth has always done a good job for me if you aren't confident in setting it up yourself.

i agree,for the money they're probably the best choice and besides the police,military and ambulance service all use 'em.

Ian,
Did you read TLD's article on LSDs in last months Courier?

John

Thanks for the advice folks

Section : Car Preparation

Lsd Which Type?

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