I'll never forget the day I purchased the car and decided to take my brother for a ride to the grocery store. As we pulled into the parking lot the car got high centered, just a little on the driveway entrance. The prior owner had the car set way to low and this was my first introduction to the fact that the sc did not come with an lsd. Honestly I couldn't believe it didn't come with one and my frustration was just beginning to peak with this car.

Like most new users I came here and started searching for a solution. Most threads mentioned all the available options but did not go into the positives and negatives of each of the available lsd's on the market. When a stock auto tt torsen pumpkin came up for sale at a reasonable price I decided to jump on it. I had it professionally rebuilt with all new parts and installed onto the car. I was very happy with my purchase as they are so hard to find.

Then as the months went by I started to come across more and more threads talking about how the torsen is unsafe above 500hp. I found videos of cars pulling extremely hard to one side on gear changes, really sloppy in the corners, and overall really unhappy opinions of the torsen. I then spent months talking to people who actually track their cars and in the end I found the best choice for my goals was to find an os giken 1.5 way super lock. Well with retail around $1700, plus knowing it would be another few hundred in parts, this was going to be a hard pill to swallow. I put it on my long term wish list as I could not see spending that much when I had many other parts needed for the build.

Well as luck has it a unit came up for sale at a fantastic price so I jumped on it.




I will admit that this is almost an 'overkill' purchase for such a basic build and that the torsen would have done just fine. Even though spending the money on this will put the build back a month or two, I believe in the end it will become one of the best decisions I have made. I am not much of a driver but I did get a chance to drive an m3 with the os super lock and I have to admit there was a huge difference (I know an sc and m3 are apples and oranges). Whether real or imagined, I felt a lot more confidence both in and out of the corners and that can only be a good thing.

I had the torsen added to the stock 4.08 pumpkin as I was not yet na-t and wanted my speedometer to read correctly. Now the plan is to put the giken into the auto tt 3.76 pumpkin. Once the r154 is finished, I will pull the w58 and the torsen pumpkin and put them up for sale to help fund the engine maintenance.

I have a lot more to purchase so the build probably won't be starting until spring or early summer, but after almost 2 years so far, I figure another 6 months of saving for parts isn't going to bother me. Besides, it will probably take me that long just to figure out how far to take the engine maintenance/rebuild. It's hard to get Gerrb's voice out of my head saying I would be stupid not to put in a gte for the amount that I am spending on this. I'm just not sure I want to have to learn how to rewire the harness and not to mention the added months it would take to save up for a gte. I guess I will see what my patience and knowledge level is when I reach that point.