FH6 Tire & Wheel Optimization — The Complete Guide
tires are the one upgrade you can't skip. doesn't matter how much power you're making if it all goes through the wrong compound. i see this constantly in online lobbies — dudes with 1,000hp builds on stock tires getting gapped by Miatas on race rubber. don't be that guy. honestly here's what i've figured out after way too many hours of testing and getting absolutely cooked in rivals by people who understood this stuff better than me. the first time i switched from stock to race compound on my Supra build i dropped two full seconds off my lap time. two seconds. from just tires. insane.
tire compounds . the quick version
| Compound | PI Cost | Best For | Don't Use For |
|---|---|---|---|
| Stock | 0 | D-C class budget builds and meme cars for laughs | Anything competitive above C class, you'll be sliding into every barrier |
| Street | Low | D-B class road racing, cheap upgrade that does the job | A class and above — you need more grip than these give you |
| Sport | Medium | A-class road meta, budget S1 builds | Dirt racing (rally tires exist for a reason, use them) |
| Race | High | S1-S2 road, competitive A-class when you have PI to burn | Off-road, drift, drag — completely wrong application |
| Rally | Medium | Dirt, mixed-surface, rally stages | Pure tarmac racing (noticeably slower than Sport tires) |
| Offroad Race | High | Cross country, deep dirt, big jumps | Tarmac at all — almost zero grip and they shred in like two laps |
| Drag Slicks | High | Drag racing, literally nothing else | Any cornering. you will understeer straight into a wall. ask me how i know |
| Drift | Medium | Drifting, tandems, angle builds | Racing — they're designed to have low grip, that's the entire point of them |
| Snow | Low | Winter season, snow zones only | Dry roads — car handles like you're on ice even on warm tarmac |
tire width . stop maxing it out
in FH5 the meta was simple: max width on everything, done. in FH6 they rebalanced the PI cost math and now slapping max width on every build is a straight up noob trap. you're burning PI that could go into power or weight reduction. here's what i've landed on after testing a bunch of cars across different classes:
- D-C class: One width upgrade above stock. PI budget is stupid tight at these classes, those points are way better spent on power mods.
- B-A class: Two width upgrades. best grip-per-PI ratio in my experience, though i'm not 100% sure this holds for every car.
- S1 class: Two or three depending on how much PI headroom you've got left. honestly varies by car, some builds feel planted with two, others want three.
- S2 class: Max width. at these speeds every millimeter of contact patch actually pays off, the PI cost is worth it and then some.
- Drag: Max rear width, stock front. rear grip is everything for launch traction, front just creates rolling resistance and eats PI for no benefit.
wheel size and rim weight
so wheel weight is unsprung mass and it matters way more than most players realize. lighter wheels = your suspension actually responds faster and you'll feel the acceleration difference. bigger rims look clean obviously but they add weight where it hurts most. tuning is all tradeoffs, you can't max everything.
- Road racing: Lightest rims you can get. unsprung weight reduction is basically free lap time with zero downside. this is one of the few no-brainer upgrades in the game.
- Off-road: Smaller diameter wheels with more sidewall. that extra sidewall flex absorbs bumps and landings that would send you bouncing off your line with rubber band tires. learned this the painful way on cross country circuits.
- Drag racing: Smallest front wheels possible (less rotating mass = engine spins up faster), largest rear wheels so you can fit the widest tires available.
- Aesthetics: if you're building a show car for photos or car meets, ignore all of this and go for looks. it won't be competitive and that's totally fine, not every build needs to set lap records.
tire pressure . quick reference
lower PSI = bigger contact patch + more mechanical grip, but builds heat faster and wears quicker. higher PSI = less rolling resistance but harsher ride and less grip and all that. here's what i usually run, though every car is a little different and track temp changes things too:
- Road racing: 28-30 PSI all around. balanced and predictable, this is my default for like 90% of road builds.
- Dirt: 26-28 PSI. slightly lower helps with bump absorption, keeps the car settled on rough surfaces instead of skipping around.
- Drag (rear): 15-18 PSI. you want maximum contact patch for the launch, this is like, standard drag tuning stuff basically.
- Drag (front): 40-45 PSI. minimize rolling resistance, those front wheels spin as freely as possible.
- Drift (rear): 30-35 PSI. higher pressure = easier to break traction and keep the slide going without fighting the tires.