Whoa, nice car. A formidable track and touge car but I'm afraid it isn't as capable on the wangan. But don't let that deter you from trying, you may succeed where I have failed...well, more like where I've been too lazy to try hard enough, haha.
Your bet bet is this: try and replicate the stock gear ratios on the FC Transmission and run the car to see where you top out. Chances are, it'll be sooner than with stock tranny. Then adjust final gear for higher top speed, but don't overdo it. I suggest increments of 0.100 at a time. And further on, by 0.050. Leave enough room for drafting, I'd recommend 500-750 RPM's, since the NA2's engine is capable of revving far beyond the redline and into the realm of breaking the needle lol.
Once you've reached a desired, or at least formidable, top speed, you can go on tweaking gears 1-3 for acceleration. Of you have SSRX, do the 0-100mph test and then go further by timing it to 150mph. Since you're working with SIX gears, you can have a short 3rd and slightly shorter 4th which will propel you to 150mph with haste. As for 5th gear, that's where you might spend most of your time in so don't make it too long, or handling suffers, therefore so will acceleration. 6th gear should come in at lower RPM's than 5th since 450hp is barely enough to even reach 200mph on any other car and your car will retard under its own weight. Like I mentioned earlier, that car can rev until near infinity, so use that to your advantage.
Remember, when you're actually racing, you have to take into account, for gearing, the key corners and you'll want to tune to keep your car stable at high speeds and high G forces. For example, the 'chicane' before the tunnel (and subsequently the one past it, nearing the end of the lap) will usually be taken in 4th gear. The good thing about the NSX is it loses very little speed on the high speed curves but can be tricky on the switchbacks.
Now, a disclaimer. This isn't the end-all, be-all method to tune your gears but it's as good a starting point as any. Other tuners implement tranny tricks to maximize acceleration such as setting Final Gear and THEN top speed, followed by individual gears. The aforementioned method is effective for blistering acceleration but I tend to not use it because I haven't quite figured it out
I hope this helps, see you on the Wangan!
The Honda NSX. I chose this car because of its great handling and its ability to act like a turbocharged car without the turbo lag. Transmission tuning is my biggest problem although I did get my nsx to barely scrape past the 200 mph mark (205 on 446hp). Suspension wise Im getting better but I still need help on that too and on LSD tuning I go blank minded. Anyone who has tips on tuning for this feel free to share any info you have or even add me to see if im getting any better. peace ^_^
