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3.15 on ebay
snapper - 21/3/07 at 03:01 PM

3 .15

I know some of you guys would kill for one of these.

Mr Whippy - 21/3/07 at 03:32 PM

no use to me as its not a LSD

mookaloid - 21/3/07 at 05:37 PM

Quote "Q: hiya, could you tell me, is this the push in, or bolt on drive shaft type ? thanks karl "


Duh Rescued attachment 8199_2.jpg
Rescued attachment 8199_2.jpg

bodger - 21/3/07 at 06:24 PM

Push In.

JoelP - 21/3/07 at 09:02 PM

lol, thats a good question

snapper - 21/3/07 at 09:54 PM

quote:

no use to me as its not a LSD

They don't make these or the 3.38 as a LSD, what you do, if you want one, is to take out the crown wheel and pinion and put it in a LSD.
Its the crown wheel and pinion thats worth the money, not the whole package

snapper - 21/3/07 at 10:02 PM

Just another contentious point or bit of info, a friend of mine who is a Dr of automotive electronics and is employed as a chassis engineering and dynamics specialist ( also an exceptional driver), when i said about a LSD for my car , his throw away comment was "An LSD will push you wide in the medium speed corners (understeer) only gives a benifit in fast corners, track stuff really.

MikeRJ - 22/3/07 at 02:39 PM

quote:
Originally posted by snapper
Just another contentious point or bit of info, a friend of mine who is a Dr of automotive electronics and is employed as a chassis engineering and dynamics specialist ( also an exceptional driver), when i said about a LSD for my car , his throw away comment was "An LSD will push you wide in the medium speed corners (understeer) only gives a benifit in fast corners, track stuff really.


A plate type LSD will tend to do this, but the viscous type in the Sierra diff will allow low speed slip without too much resistance (which is the whole point of them). The Torsen type diffs are also well behaved in this respect, but neither are as effective as a proper plate type diff on a track.

greggors84 - 22/3/07 at 03:33 PM

quote:
Originally posted by snapper
Just another contentious point or bit of info, a friend of mine who is a Dr of automotive electronics and is employed as a chassis engineering and dynamics specialist ( also an exceptional driver), when i said about a LSD for my car , his throw away comment was "An LSD will push you wide in the medium speed corners (understeer) only gives a benifit in fast corners, track stuff really.


Isnt this referring to FWD cars?

smart51 - 22/3/07 at 04:14 PM

No. When an LSD is doing its work, it tries to make the wheels on its axle go at closer to each others speed. In a corner that means pushing the inside rear wheen and pulling the outside rear wheel. The effect of this is to induce understeer. Or it would be if the LSD was active the whole time (plate type) or if you had wheelspin.

The sierra LSD is an open diff most of the time. If you go round a corner with good traction, it will continue to act like an open diff with no induced understeer.

If you start to get wheelspin, the LSD activates. In a non LSD car, the inner wheel will spin up. you'll get less acceleration and you'll get clouds of tyre smoke from the inner wheel. With a sierra LSD, the viscous coupling slows the spinning wheel. The effect is to put more of the power down through the outer wheel. You will in theory get a bit of induced understeer, but only a bit because the inside wheel isn't gripping much.

When the inside wheel does start to grip, the car will stop the induced understeer. That is unless you spin up the other rear wheel in which case you'll get oversteer.

I've found in mine that if I lose traction a bit on a fast corner, it pulls from side to side a bit as it does its thing but that it won't do anything too hairy. I've had no real understeer problems with it.