Hi, we don't do much racing in Dec and Jan because it's our holiday period (and it's too hot)
We race during the year, winter in Australia would be a "non event" for you, LOL
Categories race from Feb to Nov, some once a month, some once every two or three months (smaller categories)
Last year diverted me from my 350Z preparations
I bought a car, prepared it and raced in the Nissan Pulsar (that's a Sentra to you) Challenge, about 21 cars per race
It's a low cost and restrictive modification category
Some video here: https://www.youtube.com/watch?v=S1oGG1EBL30
I won't be racing this year, my workload, team and budget have doubled and I will be travelling 1.5 times a month on average, that does not put me in a position to do justice to my racing (I'll be flying radio controlled helicopters instead).
Next year I'll be racing again, look forward to that.
I've done some modifications to my 350Z:
Tomei headers, hard engine mounts, 50mm radiator, oil cooler, air con removed,
SPL suspension parts, Nismo coppermax clutch & flywheel (overkill)
Harder diff and subframe mounts
I have recently started it using the Haltech replacement ECU - that was cool
Need to install a cage, install ITB's, tune the car, put a low ratio diff in the rear (I have a Cusco LSD).
I will also remove the variable exhaust timing (RevUp) as the Haltech does control it well