[Fot] Fwd: RE: LSD diffs, what specs to choose?

[TeriAnn J. Wakeman]

I think this was meant to go to the group as a whole and not me since I 
already have a limited slip.

-------- Original Message --------
Subject: 	RE: [Fot] LSD diffs, what specs to choose?
Date: 	Fri, 26 Aug 2011 10:57:08 +0100
From: 	Tony Sheach <tr4.tony at virgin.net>
Reply-To: 	<tr4.tony at virgin.net>
Organization: 	tr4.tony
To: 	'TeriAnn J. Wakeman' <tjwakeman at gmail.com>



TeriAnn

In that case my choice would be the TRANX plate type diff, with a 4,33:1
CW&P ..... if you need any help sourcing those I can organise it here in the
UK with one supplier and get them to deal direct. You will also get a good
price from them as they support me.

Regards Tony

-----Original Message-----
From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On
Behalf Of TeriAnn J. Wakeman
Sent: 26 August 2011 10:09
To: fot at autox.team.net
Subject: Re: [Fot] LSD diffs, what specs to choose?

On 8/24/11 4:14 PM, Alexandre Camoletti wrote:
>  It will be a (very) fast road car, fully prepped for long distance
>  road rallies in various conditions  (Winter, Summer, dry, wet, snow).
>
>
>  I know little about LSDs, hence a couple of questions:
>
>  1)      Quaife (gear driven) or Salisbury (disc type)? I know the Quaife
>  does not work with one wheel lifted, but has not the problems
>  associated with disc type (oil quantity and heat)
>
Paragraph #1 - Winter, wet, snow.

A Quaife requires rolling resistance to both wheels in order to work.
The slipping wheel needs to provide some resistance.  A wheel in the air or
a total lack of rolling resistance from ice can foil and otherwise brilliant
design.  If you were like most people and keeping the TR under cover and
hibernating during the snow I would suggest the Quaife as it is smooth and
you never notice it is there except the rear end is not as
squirrely.   Had one on the fornt of my Land Rover for 2 decades before
replaing it with a Trutrac.
>
>  5)      Still Salisbury; should the RACETORATIONS finned cover be fitted
to
>  increase cooling and oil capacity, or is not critical in a fast road
>  application?
>
Paragraph #1 - "for l*ong distance* road rallies in various conditions"

The Salisbury type generates more heat than an open diff and I believe more
than a Quaife would.  Over long hard driving distances that heat can build
up and potentially cause problems.  Thanks to Greg, my TR now has a TRAN-X.
It also has a cast diff cover with increased oil capacity.  A TRAN-X is not
cheap and the extra cooling capacity is good insurance in my book.
>  6)      There is also the PHANTOM GRIP possibility , what is it and is it
>  worthwhile?
>

There was a lot of interest in Phantom Grip a year or two back and I
remember that a few people tried it and reported that the Phantom was just
that.  A phantom grip.  No perceived improvement other than in the seller's
bank balance.

Teriann

Whose TR's rear end doesn't dance like it used to when you punch it hard
coming out of a tight curve.
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