I agree about the lack of power and I think that the intrest of the "NOS" motor, which is only 23,000+ rpm, will quickly be outlived. And forget about putting a bit motor in, there's just not enough tourqe to push the heavier zz. I tried my 2.6 in there and it ran slower than the stock 1.6 of the zz
Hopefully someone will disect the zz motor and make some kick@ss aftermarket 4.0's or 5.0's