See the RX-7 and the Murceilago tunes I posted, particularly the Murceilago because it's readily available with the required engine. I uploaded them in the game itself.
I don't want the other tune nerfed. For me, it's the fastest and easiest way to win at Tokyo, coming in around 26:00-26:30. It's also one of the most expensive cars in the game.
I don't understand why there's so much curiosity about one single, probably unimpressive, tune compared to at least three others I uploaded (there are two for the RX-7).
Actually, I haven't uploaded the second RX-7 tune yet, it was late when I won the race with it.
To no stop Tokyo 600 with an engine swapped RX-7, here's what I remember if it:
I think the car is an '09 model. It has the 26B engine with all permanent mods except widebody done to both car and engine.
Next I went to GT Auto and fitted a color keyed air dam and a medium type C wing. I just picked the first one that came up and the first end plates. After that I got some custom wheels, wide wheels, wide stance, and the smallest possible rim. I painted the car green and added decals in random places. I think the sides are symmetrical, the hood is not.
At Understeer, I bought every part they have. I planned on using this car a while.
Now to the track. I installed Sports Hard tires on the front, though I have run Comfort Hard there before. On the back I installed Racing Hard tires. One can install IM's here for a one stop race and finish the race faster, but that's not the point; I wanted a no stop tune.
Next on the list is normal suspension. Further down, installed the fully customized differential and set everything to 5.
Next column. Front downforce is 70, rear is 300. The ECM is standard IIRC, but if you use IM tires you may need to install the fully customizable one and reduce the output. I forget how much ballast was in it, but that's adjusted last, so it should be easy to figure out (and you need to tweak it on your own to see where PP rises and falls out of sync with the weight). Distribution is -50, all the way forward.
Next is the fully customizable manual transmission. Set it to your preference between 240 and 280. I used 260. If 240 works for you, switch to the close ratio transmission. I used the close ratio with IM tires on the one stop tune.
Remove the nitrous. I bought it to use in other races where it's legal.
Next column: use either the Normal or low RPM turbo. If you can make PP with a larger one, do it. Use an anti lag system but turn it off. Use a brake balance controller set to -5.
Everything else is straight up normal. Later on it's there if you need it for Spa, the Hypercar Parade, running daily workouts, etc.
When the race starts, set your display for anything you can't accidentally bump. Set TCS to your liking, I used 5.
I had all driver assists turned on and maxed. I used a Dual Sense but had a random sensitivity setting. I used the controller's tilt function, not the stick
The car will feel loose for the first four laps, so press the gas slowly to max. You may have no issues here, my definition of "loose" is the car going even slightly off the path I'm trying to take. Be ready to countersteer, and expect not to take the lead until lap four or five. Once lap five or so hits, you can give the car what for and it will stay stuck to the road.
On easy I finished 12 seconds ahead of 2nd place for a roughly 27 minute race. Using the one stop strategy I finished about 30 seconds sooner.
As for the glitch tunes ya'll are clamoring for, forget it. I don't have some 18 minute win tune, they all run 26-27 minutes, some with and some without stops. One of them requires up to three stops and there's no changing it as the car turns all four RS tires red in three laps flat and requires at least one stop for fuel anyway. I find them a tiny bit easier to drive due to grip, but given the sheer number of options to win this race and the fact I've shared every non glitch tune I have for it, plus the fact they're not any faster, there's no reason to post them... period.
What's the point of posting a 291 PP no stop tune if the race still takes 27 1/2 minutes with it? Just so PD can issue a patch that disables half the non glitch tunes with it? Drive a Bimmer. Or the Lambo. Or a Mazda. Or the tiny Cappucino... etc.