Torsen vs OEM LSD

[Budwise]

I do 2-4 road course events per year, its a hobby and just for fun but that said its probably the most fun and addicting hobby ever. The tough part is my Dad goes with me and he's in a C6 Z06 so I'm doing my best to keep up lol. I'm slowly getting my car how I want it piece by piece. He's only slightly faster than me at this point because he doesnt push his car as hard as he could whereas I'm fighting tooth and nail going with not just him but GTR's, Porshe's, lots of other Vette's, you name it. And here comes me in a Mustang GT lol.

What I've done thus far to my non tracpak GT w/ Brembo car:
1) FRPP Shocks/Struts/Springs
2) BMR Panhard
3) 285/35/19's squared setup
4) Braided SS brake lines with better pads and ATE Super Blue fluid (already have the Brembo package)
5) Boss Oil Cooler
6) Mishimoto performance radiator

I wasnt sure where the next step should be and it seems everyone talks about how the Torsen is the cats pajamas for road courses.

 

[Sky Render]

Is the Torsen worth the price over the Eaton?

That's the same boat I'm in. Everyone who autocrosses and open tracks says "Go with the Torsen." Everyone who doesn't says "Go with the Eaton."

And I'm a tightwad. I don't want to spend the extra $300 on the Torsen if I don't have to, but I also don't want to put the Eaton in and then end up not liking it.

AAAAAAARGH.

 

[Boaisy]

I was in the same boat too, but I've decided on the T2R. Just waiting to buy it and putting it in before March.

All I read was Autocross/Road Racing = Torsen, Drag Racing = Eaton. Between Lethal (sells the Eaton) and Strano (sells the T2R), it is a $150 difference between them.

 

[WJBertrand]

A FWD Lexus is definitely not an apples to apples comparison. In the Mustang, you won't feel it engage/actuate.

The IS300 is RWD

 

[Sky Render]

I've heard the T-2R isn't a good choice for a car driven on the street a lot, and mine is daily-driven. So I'd go with the 2.7-bias-ratio Torsen.

There are a lot of Mustang owners over on Corner Carvers who like the Eaton Truetrac, though...

 

[Boaisy]

A good read that I just found:
http://www.allfordmustangs.com/foru...ch/320821-advantage-torsen-2.html#post3173034

 

[kona302]

This guy has a lot of really good videos.

 

[csamsh]

Next steps...Torsen and some good monotubes. I did/do a lot of street driving with my T2R...seems fine...but who knows? It looked fine last week when my rear end was opened up (Lana! phrasing!) after maybe 7500 miles.

 

[Boaisy]

might want to look into sub-frame connectors too. someone had mentioned, on another forum, that SFCs are one of the things people overlook, but can be really helpful.

 

[Whiskey11]

might want to look into sub-frame connectors too. someone had mentioned, on another forum, that SFCs are one of the things people overlook, but can be really helpful.

Now you've gone and done it.... the can of worms will be a big one, hopefully you are ready to eat it!

 

[Boaisy]

sorry.

 

[csamsh]

aw goddammit...I just can't get into this right now. Worms still in can.

 

[Boaisy]

 

[sheizasosay]

Sub-frame connectors for a fox body made sense. For an S197 the next big chassis stiffening would be a cage. Unless you want to start welding seams.

OP-what tires do you have? I know the sizes.

 

[Sky Render]

Next steps...Torsen and some good monotubes. I did/do a lot of street driving with my T2R...seems fine...but who knows? It looked fine last week when my rear end was opened up (Lana! phrasing!) after maybe 7500 miles.

Terry Fair told me he doesn't recommend T-2Rs for heavy street use. And 7,500 miles isn't much; I'll do more than that in a year, easily. My stock TrackLock has lasted 36,000 miles and 3 seasons of autocross, so my next LSD needs to last at least that long.

might want to look into sub-frame connectors too. someone had mentioned, on another forum, that SFCs are one of the things people overlook, but can be really helpful.

This is a picture of my car with both wheels off the ground from a single lift point. The only chassis bracing I have is a strut-tower brace. Still think you need subframe connectors on the S197?

 

[barbaro]

I can't think of one single thing you can do save possibly a torque arm / watts link that will improve your car's handling more than a Torsen. It is definitely worth it on the street if you do any spirited driving at all. Coming out of a corner and applying the throttle you will actually feel it as your outside rear tire bites shooting you out of the apex. It is fun as hell. Great for powersliding. (although of course these things are better done on the track and empty parking lots. If I had a choice of just one thing to do to my car it would be the Torsen. No doubt. Doubles the fun factor.

 

[2008 V6]

Terry Fair told me he doesn't recommend T-2Rs for heavy street use. And 7,500 miles isn't much; I'll do more than that in a year, easily. My stock TrackLock has lasted 36,000 miles and 3 seasons of autocross, so my next LSD needs to last at least that long.



This is a picture of my car with both wheels off the ground from a single lift point. The only chassis bracing I have is a strut-tower brace. Still think you need subframe connectors on the S197?

I have a friend who’s converting a 2006 - 4.0V6 to a 2012 - 3.7L V6 engine supercharged daily driver. Will be Kalifornia 100% smog legal - Everything converted & functioning though 2012 computer and accessories – should be 450 + RWHP depending upon pulley. Surprisingly, lighter than the 5.0 combo even with the front mount supercharger & intercooler - scaled. His customer had sub frame connectors installed and when in the air on 3 jack stands, you can close either the drivers or passenger’s door with 1 finger with a slight push because of weather stripping. I can’t do that as easily with my 2008 – V6. I think the S197 platform is worlds better than the S195 but was very surprised by the results of the sub frame connectors. I personally would not install sub frame connectors, I would do a 4 point or full cage but then the back seat would be useless and why buy a car capable of seating 4 unless the price is for pennies on the dollar.

 

[Budwise]

OP-what tires do you have? I know the sizes.

Bridgestone Potenza S04 Pole Position

 

[Racer47]

Here is something I ran across a while back and saved. It was a question about which torsen to use in a higher hp car (I don't remember for sure but I think the car was approx 500 whp). Anyway here is the response from torsen.
------------------
The M-4204-MB is the current Mustang production Torsen and was designed a bit more robust to handle the input torques from the Boss 302. The M-4204-T31H is our aftermarket 8.8” high bias variant for the Mustang axle and that design is several years older than the current Mustang design. The M-4204-MB would be the better choice for your vehicle.

We are not lubrication specialists however many folks have written to us stating that either the Royal Purple or Redline oils are the oils of choice with several folks using the Redline Shockproof. We have not heard of anything negative with using either brand so you should be okay with your choice.

Thanks for the question and interest in Torsen!
---------------

I'm an engr and have worked for both oem and tier one suppliers. OEM parts are held to a much higher std than aftermarket parts. I'd like to have the 4.0 bias of the T2R but I think in the long run the newer 2.7 bias T2 that is OE on the Boss will outlast it by far.

Plus it was only a year or 2 or 3 ago that T2R's were failing regularly. I have not heard much about that lately, maybe its better, maybe it was a fluke. I don't know but I'm sure the Boss torsen has gone through some very tough durability testing.

 

[dontlifttoshift]

It looked fine last week when my rear end was opened up (Lana! phrasing!)

Awesome!!