Track resizing question

[Kyle Puttifer]

I have a street track that is just under 3km long. The real road route is nearly 3.991km and I've just realised this. However, if I resize the track to this value (3991m) the objects/sobjects and walls move, but don't stretch to reflect the track changes. The secondary tracks all stretch by the same multiplier but they are out of position. Basically all of the details are scuppered. It's quite hard to describe, so just say that everything is out of position relative to the main circuit.
Is there ANY way I can resize the ENTIRE track (all of the GMTs) using either BTB or SimEd, so that everything is in proportion, just larger?
In technical/mathematic terms, enlarge the entire scene by scale factor 1.39156206 with centre of enlargement (0,0,0).

 

[Jakub Sulej]

I don't know if maybe you can convert from simEd to 3d max, you propably could resize, but I'm not sure

 

[Kyle Puttifer]

Don't worry, I've found it.

 

[Kyle Puttifer]

OK, so if I resize the track in SimEd the walls become very buggy.