[Mgizzle]

What was the weight of your race cage? 3600 with a full cage is not bad. You should be able to shorten that battery cable significantly if you route it direct to the battery or even to the left of the driver. A few pounds there. Trimming the dash structure, taking off most of the brackets for knee support and the passenger "handle" will only give you about 3-4lbs savings. If you take the trans noise/heat mat off that will give you a lot of mass savings (20lbs about) and you could put some gold foil or other lighter material similar to what the Moreno boys did on their G5.R. Their bumper beams would give you another 26lbs mass savings (front and rear combined). What did you do for your door panels or are they just cut out? Also, if you go solid mounts (aluminum) on cradle/diff etc. you could save a bit of mass there but not sure you will gain as much in performance since the Z is already upgraded in those areas. Brake and clutch pedals are very heavy too, if you have some means or contacts to get a pedal box in there you could loose significantly more mass. They are not cheap though and I can't find a set right now with a manufacturer that is drop in, its all custom work.