DC33 wrote
the JGTC would always be far behind. The JGTC 500 NSX were TT V8s and turned the other way. The JGTC 300s were I believe V6s, but thats all I know about them
2000 = Takata Dome Honda won, with NA
2004 = turbo...they sucked
2006 = back to NA, Takata Dome 3rd in series
2007 = ARTA got pole position 4 races in a row.
source
ironically, it was only when Honda ditched the forced induction setup that they started winning.
Keep the NSX NA. I would go with individual throttle bodies. The NSX isn't meant for, top speed high power...why go that route? Get a Supra if you want that.