+1 for tire size recommendation and transmission overhaul with deburing and WPC treatment.Thanks for posting Eric - awesome car you have there.
As far as the transmission, FX has done well with the WPC treatment. I'm sure that if you contacted them, they'd point you in the right direction in getting the transmission foolproof.
For the tire size, I run 235/40-17s and 285-30-18s for my car. For the track, Yokohama makes 230-17 and 280-18s slicks that would definitely help. I have a set but haven't been to the track yet to try them out.
PPG Australia are currently deveoping a 6 speed DogBox for the NSX
http://www.ppgearbox.com.au
Modena Engineering in Australia have made a 5 speed Dogbox for the NSX
modenaengineering.com.au
Quaife do a sequential 6 speed dogbox
http://www.quaife.co.uk/
Thanks for the info. I'll get a hold of the 2 Aussie companies next week. As for Quaife, they no longer make an application for the NSX.
Quaife is crap.
Get a hewland, the EGT is available and was used in JGTC. We have the wide version, used by diesel touring cars in Europe who have significant torque.
I believe a lot of touring cars are moving to a different box next season so there should be loads of second hand EGTs on the market. Just sorting a spare out ourselves.
Weird race...a Golf chasing a Radical, take it driver skill is varied?!