Royce,
I am not an expert on the inner working of the Quaife, but it would seem
to me that even with a gear set up, something has got to slip inside the
unit for it to be a LS. There are the locker types that are either
locked or unlocked and they would not need the additive. Does the
gearing between the wheels in the Quaife unit allow only limited RPM
differences? I am very intrigued to understand how this thing works. My
observation on the Quaife is not based upon any specific understanding
of how their unit works, so I would welcome hearing from someone who
does understand how Quaife achieves the limited slip operation in their
design.
Phil
-----Original Message-----
From: owner-vintage-race@autox.team.net
[mailto:owner-vintage-race@autox.team.net] On Behalf Of Royce Miller
Sent: Saturday, November 16, 2002 10:37 PM
To: Phil Roettjer; vintage-race@autox.team.net
Subject: RE: diff lube question
--- Phil Roettjer <proettjer@charter.net> wrote:
> -----Original Message-----
> From: Phil Roettjer [mailto:proettjer@charter.net]
> Sent: Friday, November 15, 2002 11:10 PM
> To: 'vintage-race@autox.team.net'
> Subject: RE: diff lube question
>
> I use Red Line with the Quaife LS MGA diff that I run in my Lotus 6. I
> have not had a problem with it and all seems to work OK. The regular
Red
> Line 75W90 Gear Oil has the limited slip additive and they also
produce
> a 75W90 Non-slip Oil for regular diffs. You just don't want to use
the
> oil with the slip additive in your trani since the synchros will not
be
> as effective. I am not pushing Red Line, nor do I own any of their
> stock. I have just had good luck with their products.
>
> Phil Roettjer
> Lotus 6
> Lotus 7 S1
>
> -----Original Message-----
> From: owner-vintage-race@autox.team.net
> [mailto:owner-vintage-race@autox.team.net] On Behalf Of Jack W. Drews
> Sent: Friday, November 15, 2002 4:16 PM
> To: vintage-race@autox.team.net
> Subject: diff lube question
>
> I have a very specific question regarding experience that others may
> have
> had with diff lube.
>
> I run a Quaiffe, which is a Torsen type limited slip. I am considering
> changing my diff lube from a synthetic of another brand to Red Line.
Has
>
> anyone else with a Quaiffe run Red Line? If so, have you noticed any
> deterioration in performance (not that it's anything to brag about
> anyway)?
>
> Thanks in advance
>
> .
>
> uncle jack
>
It is my impression that the limited slip additive is only needed for
the
clutch type units. Since the Quaife unit is all gear based the limited
slip additive should not be necessary. I am not a mechanic but I do run
Quaife limited slips. One it was first installed the mechanic said to
use
any type of gear oil with it. I wasn't sure about this so I did ask
several other mechanics and racers using various limited slip diffs. I
have been using Swepco by recommendation of Dan Radowicz of Rapid
Motions
but think that Redline would be an excellent choice for lube as well.
Hope it helps!
Royce
'66 Lotus Cortina Mk1 vintage racer
Sacramento, CA USA
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