[mkiv] Rear Differential
Dj Reversal
mkiv@mkiv.com
Sun, 26 Jan 2003 13:06:28 -0500
hey... anybody replaceing there rear diff or what not, i noticed on the
titanmotorsports web page, that they have these solid mounts for the diff
thats supposed to help alot with wheel hop... not sure how much, but a trd
diff and those mounts and u should be in good shape, thats what im planning
on.
Mark
Sp76 HO series
----- Original Message -----
From: "Greg Caloudas" <gcaloudas@adelphia.net>
To: <mkiv@mkiv.com>
Sent: Sunday, January 26, 2003 12:39 PM
Subject: Re: [mkiv] Rear Differential
> Andi does the Redline help with the wheelhop?
> Greg
>
> www.gscmotorsports.com 843-842-3366 greg@gscmotorsports.com
> ----- Original Message -----
> From: "Andi Baritchi" <andi@airmail.net>
> To: <mkiv@mkiv.com>
> Sent: Friday, January 24, 2003 3:01 PM
> Subject: Re: [mkiv] Rear Differential
>
>
> > can you ask him if i'm damaging/hurting anything by using redline
> shockproof
> > heavy in there? i'm using it not to try to change bias but to protect
it
> from
> > wheelhop/etc...
> >
> > Andi
> >
> > Quoting gs96 <gs96@sgi.net>:
> >
> > >
> > > I spoke with an engineer for Gleason-Torsen and he said
> > > just use factory fluid or comparable (Redline, etc.) -
> > > nothing would be gained by using a fluid with different
> > > friction properties. I asked him because I was
> > > getting so much wheelspin with the Torsen that I
> > > figured a "less slippery" fluid might help keep the
> > > diff from spinning up so quickly when unloaded. He
> > > said I figured wrong. :-)
> > >
> > > Kent Rafferty
> > >
> > > > Can you change the properties of the Torsen by using
> > > different fluids or
> > > > modifiers in the differential? I remember hearing
> > > something about friction
> > > > modifiers a long while back, but didn't understand
> > > how it impacted the
> > > > personality of the Torsen. I'm getting a lot of
> > > inside wheel spin on corner
> > > > exits, but mainly because I'm using stock springs
> > > with BigAss sway bars. I
> > > > know... suspension mods are hopefully coming this
> > > Spring.
> > > >
> > > > -Michael
> > > > 97TT6
> > > >
> > > > ----- Original Message -----
> > > > From: "gs96" <gs96@sgi.net>
> > > > To: <mkiv@mkiv.com>
> > > > Sent: Friday, January 24, 2003 10:33 AM
> > > > Subject: Re: [mkiv] Rear Differential
> > > >
> > > >
> > > > > Yes, IME. The Torsen is fine as long as both
> > > wheels
> > > > > are on the ground and the inherent bias-ratio is
> > > not
> > > > > exceeded. A good example of when the Torsen works
> > > > > poorly on the Supra would be on a somewhat bumpy
> > > > > high-grip concrete surface with Hoosiers. The
> > > inside
> > > > > rear (especially passenger side) will spin up on
> > > corner
> > > > > exit. It would be difficult if not impossible to
> > > > > recreate the same forces on street tires -
> > > especially
> > > > > on a typical asphalt surface. Torsen makes a T2R
> > > > > racing unit that I'd love to try but it isn't
> > > available
> > > > > for the Supra.
> > > > >
> > > > > Kent Rafferty
> > > > >
> > > > > > > Theoretically, the Torsen offers
> > > > > > > numerious advantages vs a clutch-type (TRD) LSD
> > > > > > > (especially for autocrossing), but practically
> > > > > speaking
> > > > > > > (for the Supra, IME) it has much to be desired.
> > > > > >
> > > > > > But this problem only occurs on R compound tires,
> > > > > correct?
> > > > > >
> > > > > > Grant
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "gs96" <gs96@sgi.net>
> > > > > > To: <mkiv@mkiv.com>
> > > > > > Sent: Friday, January 24, 2003 8:51 AM
> > > > > > Subject: Re: [mkiv] Rear Differential
> > > > > >
> > > > > >
> > > > > > > The TRD is used by many Supra road racers. The
> > > > > > > Speedvision GT Supra switched to a TRD from the
> > > > > stock
> > > > > > > Torsen and reportedly (I talked to a
> > > crewmember)
> > > > > picked
> > > > > > > up 1.5 seconds per lap on certain road courses.
> > > I
> > > > > > > believe Jeff Watson runs a TRD now also. I just
> > > > > > > switched to a TRD but haven't had an
> > > opportunity to
> > > > > > > test it. I got massive wheelspin coming out of
> > > > > corners
> > > > > > > with the Torsen (which acts like an open
> > > > > differential
> > > > > > > if one side is unloaded) and no amount of
> > > > > suspension
> > > > > > > tweaking helped significantly. I'm hoping the
> > > TRD
> > > > > will
> > > > > > > help not only for open track stuff, but also
> > > for
> > > > > > > autocrossing. Theoretically, the Torsen offers
> > > > > > > numerious advantages vs a clutch-type (TRD) LSD
> > > > > > > (especially for autocrossing), but practically
> > > > > speaking
> > > > > > > (for the Supra, IME) it has much to be desired.
> > > > > > >
> > > > > > > Kent Rafferty
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > > The stock LSD is a Torsen gear sensing type.
> > > The
> > > > > TRD
> > > > > > > is a conventional
> > > > > > > > clutch type LSD as used in many US muscle
> > > cars
> > > > > for
> > > > > > > decades. Not as good for
> > > > > > > > road racing, better (stronger) for drag
> > > racing.
> > > > > > > >
> > > > > > > > Chip
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: "Seth Thomas"
> > > <porsche993@mindspring.com>
> > > > > > > > To: <mkiv@mkiv.com>
> > > > > > > > Sent: Thursday, January 23, 2003 8:16 PM
> > > > > > > > Subject: RE: [mkiv] Rear Differential
> > > > > > > >
> > > > > > > >
> > > > > > > > > What exactly is the difference in the TRD
> > > diff
> > > > > and
> > > > > > > the stock Supra one? I
> > > > > > > > > know the TRD diff that they picture looks
> > > > > similar
> > > > > > > to a Quaife but the
> > > > > > > > diff
> > > > > > > > > in the stock pumpkin is also similar to a
> > > > > Quaife.
> > > > > > > So what is the
> > > > > > > > > difference?
> > > > > > > > >
> > > > > > > > > Seth Thomas
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: mkiv-admin@mkiv.com
> > > > > > > [mailto:mkiv-admin@mkiv.com]On Behalf Of Chip
> > > > > > > > > Schwartz
> > > > > > > > > Sent: Thursday, January 23, 2003 10:01 PM
> > > > > > > > > To: mkiv@mkiv.com
> > > > > > > > > Subject: Re: [mkiv] Rear Differential
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > I broke mine (6 speed) drag racing a few
> > > years
> > > > > ago.
> > > > > > > I was too stupid to
> > > > > > > > let
> > > > > > > > > off when I had major wheel hop coming out
> > > of
> > > > > the
> > > > > > > water box.
> > > > > > > > > A new diff is ~$1700. I bought a used one
> > > out
> > > > > of a
> > > > > > > wrecked '95 w/38k on it
> > > > > > > > > for $800. It is easy to replace, but very
> > > heavy
> > > > > if
> > > > > > > you don't have a good
> > > > > > > > > jack to lift it into place.
> > > > > > > > >
> > > > > > > > > I would be wary of rebuilding, the cost of
> > > > > > > parts/labor is greater than a
> > > > > > > > > used diff, and there is little assurance
> > > you'll
> > > > > get
> > > > > > > one that has proper
> > > > > > > > > contact pattern on the teeth, backlash etc.
> > > > > after
> > > > > > > it's built. I'd hate to
> > > > > > > > > put up with a whining diff.
> > > > > > > > >
> > > > > > > > > I still have my broken one sitting in the
> > > > > garage,
> > > > > > > if I ever run across
> > > > > > > > > someone who knows how to put one together
> > > I'll
> > > > > have
> > > > > > > it rebuilt with a TRD
> > > > > > > > > LSD instead of the Torsen (which is what
> > > always
> > > > > > > breaks).
> > > > > > > > >
> > > > > > > > > Chip '94 Supra TT/6 spd
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: "Travis Harty"
> > > <tharty@tanagerinc.com>
> > > > > > > > > To: <mkiv@mkiv.com>
> > > > > > > > > Sent: Thursday, January 23, 2003 6:16 PM
> > > > > > > > > Subject: [mkiv] Rear Differential
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > > Couple Quick questions here.
> > > > > > > > > >
> > > > > > > > > > Has anyone had to replace their rear
> > > > > > > differential?
> > > > > > > > > > Does anyone know where to find some for
> > > sale?
> > > > > > > > > > What are the going rates?
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > Thanks
> > > > > > > > > >
> > > > > > > > > > Travis
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > _______________________________________________
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> >
> > --
> > Andi Baritchi
> > andi@airmail.net
> > www.biggerbox.com
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