What makes the S13 understeer so much?

[InsanityInc]

Incorrect, an inexperienced drivers first reaction to anything is to apply the brake. Nissan understood this and applied a small amount more brake bias and weight to the front to maximize braking stability.

Now the real question is, is that any less of speculation than what I said?

[KDashy]

He was talking about forward bias though braking as opposed to inaction.

Cars have a forward brake bias when braking anyways, otherwise if both front and rear brakes were equal the rear tires would lock when the weight shifts forward.

I guess he's saying its even MORE biased towards the front than normal cars.