Differential Tuning Guide | Forza Horizon 4

[@paulk84]

Thanks Hoki, this is great, would love to see more in depth stuff on suspension, damping, etc... personally i dont mind long videos, i dont think you should worry about them being too long and such imo... but anyway, Thanks again I have allready learned so much from your videos and it completely changed the game for me. hope u keep them coming ;)

[@yeetyeet6015]

Thanks to your vids my cars are now noticable better thanks man

[@williamales9055]

Same, they help a ton

[@Highwind6001]

The game sold 2M copies and this video only has 14K views. I don't get it. Microsoft should hire you for tutorials and description writing.

[@trautsj]

So many people just blindly download other peoples tunes or have shit tunes. They don't really care sadly. Hoki's guides have been TITANIC in my understanding of how to make a car drive like I want. ESPECIALLY if you get tired of EVERYTHING being AWD with a 6.2l V8 ... I'm not destroying rival leaderboards or anything but it's just super satisfying to be able to jump in a RWD Nova and blaze through some B class races :D

[@antman619]

2 years later this is actually my first owned xbox game so I bought a hard copy for 42 bucks at wallmart lolol cant pass that up

[@p4k8g5i7]

Absolutely, MS shoud again think about it seriously, if we have this level of tutorials in-game then it will truly be more than a game. Like a lego of car games.

[@newk8315]

Thanks to you I’m able to enjoy forza a ton more and tune cars to my liking more often, keep up the amazing work !!

[@adrianarteaga6275]

It's amazing how crazy this difference makes when exiting a corner. Thanks my man, I know I'm late but just wanted to thank you for this video really helped out!

[@jf8188]

Same

[@armades01]

I only started playing Horizon 4 on PC recently, but your tuning guides have been a big help. I still end up re-watching bits of them every time I try to make changes.

[@thatoneewokthatdied2291]

I just spent a good amount of time last night just focusing on differentials. This video couldn't have dropped at a better time!

[@prozoomy]

😁 ikr!

[@timmmyyb]

The thought that's gone into this is brilliant. I noticed when you change from talking about road to rally settings you actually have the car changing road surface as well. Love that

[@luisguilherme2403]

This was one of the best explanations even to real life examples of differentials use cases because of the visualization in Forza, and basically the only one I've found focused on the game application. Amazing job and didactic man!

[@mrphwibbs9766]

These guides are the best but if you want your channel to grow faster try to get your vids above 10 minutes or they'll go under the KZbin algorithm's radar. You deserve way more subscribers.

[@HokiHoshi]

Hey thanks for looking out!! Yeah longer vids definitely rank higher in the algorithm, but I think it's more of a sliding scale than a hard time limit. The big thing with exactly 10min is for ad revenue...because you can't put a mid roll ad in a sub-10min video and those make the big bucks. Personally, I'd rather just make the content exactly as long as I think it needs to be without artificially inflating video length, my goal is just to make the best content I can every week, and whatever ad rev. I get is a nice bonus (a very nice bonus)!! Sincerely thank you for offering advice, and for the compliments, means a lot to me!

[@thatmiatadude3997]

HokiHoshi how wholesome

[@Kurosaka]

@@HokiHoshi very cool

[@NM-db7wm]

Great video as always! What I would love to know more about is that I found that there is no strict rule to choose tunning parts. To clarify that, sometimes you shouldn’t go with camshaft and exhaust because your car may be already lightweight, so you can save some of pi for more pure power. Or you may even go with upgraded tires instead of camshaft, which I found useful with B class rally Miata. Or for example civic ‘97 have that good suspension and I decided to go for oil cooling instead. (I have got the 5th place in world on street rivals B class) There are so many variables in building a specific vehicle for a specific track. I would love you to cover this topic in future for all the people that blindly follow your video and don’t think for themselves. Please give me your opinion on what I have said in the comment. Just keep doing your work. Your videos are so useful and well explained, I am excited every time when you upload to watch and learn something new.

[@pellelindbergh7483]

Great explanation. Sure as heck beats the in-game text boxes. Nice job.

[@trophymaster2073]

This video is helping me have more understanding of the tuning in FH4 and is helping me get better at tuning. I was lost on differentials and how to tune them. But now I know how to. Thanks! You just earned a subscription from me.

[@CapitanoAraym]

This video is 3 years old (at the time of my comment), but is pure GOLD. I managed to resolve a lot of issues in a lot of cars just applying a couple of adjustments on differentials.

[@prozoomy]

Man you helped me so much with tuning! I really enjoy your videos :)

[@samhobart7030]

Thanks Hoki, your videos are super helpful! I'm having trouble with and AWD build. i cant seem to maintain grip in the front without making my car so stiff it blows through corners. Anything helps. Keep up the good work we all appreciate it!

[@EscapeePrisoner]

I have a few cars (my top go-to's) to try this insight on. But honestly, by rigorously applying some of your tuning advice from earlier beginner vids I've managed to develop a formula that works almost universally. There's a little bit of feel work and guess work but I'm now tuning D to S2 cars with the same bog standard, adapted from your basic formula, to my drive style, to pretty much every car. And kicking enough ass to make me feel good about myself. So I'm keen to try out this advanced diff tuning on a few cars, but lazy enough to lean on the basics generally.

[@Baddie_xP]

You have literally saved me. I thoroughly enjoyed your videos. Your voice is perfect for teaching. Thank you so much sir. :)

[@aloxx2820]

6:23 gotta love that transition

[@HokiHoshi]

Dude I'm so glad someone noticed that ❤

[@aloxx2820]

@@HokiHoshi it was hard to miss ^^ love your vids, they got me into tuning in forza.

[@powerhouseguitar]

Lots of great info as always. Like everyone else my cars have improved by a lot since I started watching.

[@MJMoonwalker332]

Because of you I'm getting better at tuning cars I appreciate it thank you no need for tuning calculators it was intimidating to learn it all but once you do it's easy

[@santiagocastro4731]

I love how you started to talk about rally setups when you started to drive in dirt on the video,always love that details that you put in the videos

[@Baddie_xP]

I'm very lucky on notifications but your the first KZbinr I've action "hit the notification bell". And of course I liked and subbed. :)

[@SpecialSunShine]

Great video as always Hoki. You've made my tunning noticeably better.

[@wolfcaliburRX]

I'm hooked on your videos, they're very informative and well layed out, do you think a video discussing the difference between front and back engined vehicles, I see online people complain about rear engines, but I don't know why.

[@axisprotoman]

This video helped me beat my buddies lap time on Greendale. Thank you!

[@knogginator]

Great video! I always knew full lock was good for drifting, but I wasn’t fully sure about the others, but now I do!

[@_louis.se_]

You deserve way more subs than you have right now...KEEP HARDWORKING!

[@geanfreitas0611]

Great video! Lately I have tuned all my cars to AWD and always 66%/11% on front and 72%/12% on rear Center I usually put between 60 to 70% rear, always checking the 0-60 mph acceleration, since it changes depending on the percentage. And is comfortable to drive without oversteer or understeer 😊

[@rscotthopson]

Can't wait to see all of these. I'm creating a spreadsheet from all your videos so I know what the heck I'm doing. Helps so much, keep it up!

[@denoise4033]

mind sharing it? ;)

[@newrez]

Finallllllyyyyyy!!!! This isnthe video ive been waiting for! Thank you!

[@Lofi.z34]

I'm just super happy that you used my real-life car for this video

[@Lofi.z34]

For my AWD Rally cars I usually drop these numbers. FRONT accel 20-30, decel 0 always / REAR accel 60-70, decel 15-20 percentages. And balance 65-70 to get a bit more power to the rear. Suspension for Rallying is a different monster. I usually run tighter swaybars and soft springs with mid-high ride height. The front swaybar is always a bit softer than the rear depending on where the engine is (weight balance) and always a slightly stiffer front spring for hitting hills but rear spring is pretty much as soft as it can go.

[@iMrTayzer]

A fellow Z owner :-) Makes me happy lol

[@Lexxo777]

Legendary, thanks! This tweak is a night and day difference to my AWD setup.

[@leecoats4535]

Thanks for the video. Been chasing my rear end around for a while trying to figure out what's wrong. 🤟

[@isaiahthomas7210]

Thanks for the video bro, my prelude now has little to no understeer now 👍

[@supr3m3bhaji3]

Awesoem video man, this helped a ton! Thanks to you I have a lot more knowledge on making my cars better on the race track! Amazing man! Keep it up and I hope you hit 100K!

[@charliecharles684]

Great example (car on stairs;) explaining differential usage! Classy vid and info!

[@Tboogie60]

Underrated video ❤🤌🏾🤌🏾🤌🏾

[@justin4734]

Engineering explained is a good channel

[@thatfastchevy]

I REALLY LIKE YOUR TUNING VIDEOS

[@turbotasticgtrvideos7052]

Great video as always, very well presented and explained. I wanted to point out one or two things from personal experience that may or may not be of value. I've found with some FWD cars with AutoX setups that it actually helps to have a slightly higher lock setting, and a little bit of decel to counter lift-off oversteer. While it may seem contradictory to lock up the front diff, I've found it helps keep the inside tire from "one-tire firing". By making better use of that inside tire, I can also turn in a little sharper. Do you think you could shed some light on that?

[@azrocker06]

Thank you, because of you I am doing so much better with my cars.

[@Jafmasterflash]

Thank you so much for this Hoki it’s gonna help me a hellva a lot 🤘🏻

[@bayernmunchen1086]

I enjoy your well made videos. keep up the great work

[@UrBrudda123]

i always had problem tuning this setting and now i kinda get it now thanks a lot

[@carlovergts02]

Hey, I’ve fiddled around with diff settings in the past, and with AWD cars, I found that even when you put the center diff at 100%, somehow, the front wheels are still getting power. So the car doesn’t completely become RWD.

[@alexfdalexfds6331]

i finaly understood why i was spining al the time thanks!!!!

[@J_Cash88]

Dude this video was super helpful!

[@halexviottogomes9639]

The road to the Master Tuner is not easy. Anyway, thank you for your efforts and nice explanation using the photo of bottom of the car and the ladder to demonstrate the wheel spin.

[@milosstojanovic4623]

One thing you could do, take some car which is understeering(oversteering) show them in video in some race, then "fix" it and show us result, also compare tuning settings before-after, you could also make videos about some cars which are good-bad for racing and how to "fix" them to be better, in FH 4 most important thing about any car is choosing the right car and tuning it for racing against other people, rest of it is not that much important. Cheers!

[@AaronAnonymous]

Would be cool to see more vids from you. I know your channel is more of an advice/testing channel but some races would be nice too.

[@HokiHoshi]

Keep an eye out over the next few weeks, I'm starting a new series that's a little more action/racing focused soon!!

[@AaronAnonymous]

HokiHoshi awesome! Thanks for the reply and sorry if you mentioned it in the video, might have missed it.

[@oskar4067]

this helped alot i can kinda understand it a bit more but i dont have english as my first language so i dont understand that much but this helped alot ty

[@JKealii01]

Extremely insightful. Thank you. 😀

[@JKealii01]

Yeah, sincerely did not know what I was doing with those diff sliders. Thanks man. Love these vids. 😀👍

[@krashboombang]

Thanks, Hoshi

[@HachuneMikUwU]

Thank you for this vid. I never knew 100% diff on racing cars is bad

[@charleyweinhardt]

You deserve your 200 to 1 like ratio. 👍

[@r3vmixman]

I’m literally using your advice to tune my real life track car. 😂

[@r3vmixman]

@HAZALAD43 HA-JD hahahaha! But seriously, I learned a ton from just this video. Actually, you're the reason I bought an OS Giken 1.5 differential for my k24 Miata!

[@RobertYayo]

You've been such a help I was wondering why my rwd senna can't corner hard at low speeds cause I had the diff at 8%

[@CharlieboySLONDON]

This will certainly tame my 870bhp Pista as is a little tail happy, thanks 👊

[@lukassamuila9999]

Its way more fun to tune yourself and in some cases makes you faster because by tuning yourself you mastering the car too. But it requires patience because its trial and error

[@iverulfengrad3187]

Thank you very much for making this great videos. Thanks to them I no longer use the butt ugly forza aero.

[@Lofi.z34]

Amen, I don't think I ever used that stuff unless my car was S2 and really needed aero to stay planted. But anything S1 and lower I just worry about weight.

[@niklimnat1061]

@@Lofi.z34 i just grabbed a saleen s7 and bumped it up to s2 and did not put forza wing but i just tuned the differential and the car stays mostly planted and turns stably as if it had a wing

[@Lofi.z34]

@@niklimnat1061 It was a year ago, I have 900 and 998 cars that stick like glue without aero and I've learned a ton of shit about tuning (differential is important but springs & swaybars have the most effect) I usually do the diff after suspension is tuned then camber & gears last. Damping is pretty easy basically it scales up or down with the spring stiffness

[@S55_Marquise]

Never uses frza areo anymore

[@wavymats6128]

This is what I wanna learn in school

[@frederick123]

Once again, amazing info, will help for sure. Thanks

[@Suave_TheArtKartel]

You always come thru man ... If there were content awards!!

[@playcer8388]

Great info dude, really informative gonna try out different tunes. But what about the deceleration

[@fxstdribbler6427]

Tip for guys who drive 1000+ hp awd cars and have trouble breaking in corners: put more power to the front in the center differential so youre not oversteering into walls. Also put braking 25% and 200% at bottom. Also make sure you go to controls-advance controls and put both decelerators lowest. Youre launch will take a little longer but once you get going youll be straight.

[@CL-ty6wp]

Tuning is why I play this Forza games.

[@Pawprincedogwalks]

Great explanation!

[@eugene5309]

Thank you, the video helps a lot!

[@carlsimon4801]

Am I right in saying AWD cars tend to lose front end grip around paved corners majority of the time? My front end grip keeps maxing out and I’m unsure what tyre sizes to run

[@RudolphTheOG]

Very Technical and precise

[@4fluxsake]

Thumbs up for mentioning the differences for rally setups, I actually run them on my A and S1 class road cars, they work amazing with my driving style. I use soft suspension with open decel diff and soft front arb, so i can lift-off oversteer/trail brake until the apex and then power out of it thanks to the 50% center diff. this results in oversteer on corner entry and understeer on exit , giving me completely different racing lines from the other racers and allowing for clean contact-less passes. Also I was wondering, since I use them, is there any downside to 0% deceleration lock (front and rear)?

[@HokiHoshi]

I'd say you won't notice a low decel lock too much, and it won't reflect in lap times as much either, but it can definitely affect how the car feels on braking and corner entry. When you have a low/0% decel lock, when you're braking on uneven surfaces sometimes one wheel can "go dead" and just stop spinning, which might pull the car left/right and lower braking grip. But in the same situation, if you're diff is locked somewhat on decel, neither wheel can stop unless both are stopped, so your car has less of a tendency to pull one way or the other. Decel diff lock can also interfere with ABS in some cases. You might also sometimes get too much corner entry oversteer (causing too abrupt weight shift) but that can almost always be handled with good driving so if you aren't noticing an issue, then there probably isn't one! EDIT: also - for the record, decel lock should always be on the lower side of things anyway, so 0% lock is definitely closer to theoretical "perfect" than 100% most of the time. If anything, play with values around 5-20% and see if it helps with anything, but again, won't make much a difference and just comes down to feel in a lot of cases.

[@4fluxsake]

​@@HokiHoshi Yes it often gets sketchy in chicanes when I man handle the cars a bit more, might turn it back up a little and see if it makes a difference. For ABS it's not an issue since I dont run it, I find it really inconsistent especially at low speeds, often lengthening my stopping distance several meters. Anyways thanks for the reply, your tips always help a ton!

[@arvindashok]

Damn that really helped me out. Thanks :D

[@mgpmisterk2322]

This was extremely helpful as usual. Do you think you could do a guide on tuning front wheel drive cars? I'm struggling to find the right tune for my 04 civic type r and I don't wanna convert to rwd or awd

[@uniqueinsanityxx5471]

Much help mate tbh the forza difs rimind me alot like the rc cars they work the opposite of real ones

[@zan7838]

i have no idea why my s1 fe clio would slide less when i tuned up the rear diff accel to 90%. im not using any aero parts due to aesthetic requirements, so tuning is a must as on default tuning it can get really slidey. Thanks for the guidee

[@gp8666]

Weird fact fully open diff is sometimes used in wheelie cars (in forza)

[@fatehabro6682]

2:53 flamethrower kit

[@jacekjagosz]

Even with your tutorials I often struggle to choose which element I have to tweak. When my car understeers everywhere, should I tweak differential, springs or dampers. Even with all the knowledge there is a lot of trial and error to make a car fast. The fact that a car is stable doesn't always mean that the car is as quick as it can be.

[@Jakwob888]

lower ur spring and anti roll bars. Check his video on them. But is ur car awd or rwd or rwd ? My my rear wheel drive cars like my bmw m4 gts, I usually have my front stiffer than the rear on the roll bars but on the softer scale but then have my front springs softer than the rear. Softer springs and roll bars can transfer more weight therefore reducing understeer as weight isnt forced into the direction that the car is originally travelling in. Lower front ride height too and increase front negative camber to -2.5 (more if that value is standard)and caster to around 5.5 or 6.0 degrees. Lastly u might just be going too fast and not using the ur brakes enough to then carry momentum through corners. Make sure u also follow cornering lines. If ur lines through corners are wrong u cant utilise ur speed and angles to make sure ur cornering speed is high

[@HokiHoshi]

This is sadly kind of the limit of tuning guides when you don't know the car or the mods :/ every car takes to tuning differently so its tough to "generalize" everything and at the end of the day, like you said, it comes down to a lot of trial and error, and experience can just make that trial and error period faster. I think the best thing I can say is to find a track for tuning and run cars on it while making small tweaks so that you can see your changes reflected in lap times, I always prioritize a stable/easy to drive car before moving onto speed, but many people have the opposite opinion!! If there's anything specific that you think I might be able to help with though def. let me know!!!

[@jacekjagosz]

​@@HokiHoshi I have just one observation about this video. From my experience (actually just retested it to make sure) lowering front decceleration lock greatly reduces understeer, especially at low speed corners. But from what I gathered from your video, it should be the exact opposite. The rest was really helpfull.

[@HokiHoshi]

@@jacekjagosz No that is accurate what you're saying! Front diffs should be tuned lower (15-40%ish)all around, and decel lower than accel, so front diff decel should generally float around 5-25%. I might have accidentally said the opposite in my video though I'll have to rewatch to see what I said!!

[@jacekjagosz]

@@HokiHoshi 5:14 I understood it that front diff settings work exactcly opposite to the rear. But it seems like to get oversteer you want to reduce both front acceleration and decceleration, while with rear you have to reduce decceleration and increase acceleration.

[@Humanumikey]

Great vid man. So when it comes to fixing oversteer or understreer, is the differential the best place to start??

[@kursadmercimek4289]

Only 19k subs? damn

[@vaibhavmamle1997]

Need a wheelie tune video, and which cars can wheelie

[@FlowMustGoOn]

great vid

[@jacobkeefer7438]

Damn hoki I just been maxing it out bc I never thought to deeply about it's kinda embarrassing considering I been no lifing forza for years and didnt know this

[@platinum2721]

MOREEEEEEEEEE PLZZZZ!!!!!!!

[@Dark83271]

Could you do a tutorial for tuning a supra 2.0 gt with 3.0 I6 TT engine for the best speed and such. I having hard time with front tires being all time locked up while hitting top speed with this engine

[@rangerover06sc]

Actually the differential is never fully locked even at 100%. You can demonstrate that by looking at the telemetry because in certain situations one wheel will still spin faster than the other even at 100% Also something to keep in mind is with an open diff your torque split is always 50/50%. The wheel that is spinning faster always receives the same amount of power and torque as the wheel that isn't. That's because torque and power are calculated based on friction. So because the spinning wheel has way less friction than the non spinning wheel the amount of torque being sent to both wheels is the same. By partially locking the wheels together more torque can actually go to the wheel that is spinning slower because it has more friction. And another thing the value for the center diff isn't for locking, it controls your torque split. But again keep in mind the side with the most least friction will spin faster so just because your torque split is 50/50% doesn't mean one side won't spin faster than the other. The center differential works just like a front or a rear diff. So torque split doesn't directly correspond to how fast each end will spin.

[@lilwilly7479]

Thank you so much

[@Buzzedd777]

100% wheel lock in racing lingo is a "live axle", just spreading the knowledge. Personally, I put all my street race cars diff at 0%. I want no drift sliding at all if possible but there are always some eceptions.

[@MrBadmood5]

Mind My Halo i prefer rwd muscle cars and do the same. With the higher hp they tend to have i dont mind the wasted energy on zero diff and can accelerate all the way thru the corners with minimal traction loss, otherwise id always slide out exiting corners- especially as the roads seem to be wet or icy 75% of the time

[@ToastyZooker]

I feel like no matter how much I mess with any car's tune I ALWAYS get so much understeer.. Taking fairly light turns and the lateral Gs just throw me off the road.. I see other people tuning super "twitchy" cars that have such crazy immediate feedback when turning, but I can never get that... I usually just give up and download an online tune :(

[@WillFuI]

So on my awd Goliath cars my diff is a 13 acceleration 15 deceleration and have it said to a 20/80 split

[@moisesmaxer]

Very very ussefull, thx

[@skylinefan32]

Hope you don't mind the necrocomment, but can I ask a question? My high powered awd car leaves skids from the outside front tire when cornering at high speeds. Is this indicative of a differential issue? Or is this normal? The car understeers a bit and was wondering if that had something to do with it

[@TreeRingsExploration]

Are you prebuilt tunes on FH4 come with your specific tunes? Or just the upgrade tune?

[@mafus6116]

I have 3 options of my diffs. - cruiser -15%, sporty -10%, powerful, or race -5%, not perfect, but works good enough... 😀

[@sidewayzl2316]

So to get full posi you have to put 100% on acceleration and deceleration?

[@kingtrav8347]

i don’t know if you’re going to see this but my 98’ supra keeps spinning at launch. when it gets going (about 50 mph) it goes right. edit: I got it figured out. edit 2: back 2 tires are sliding/drifting/spinning out. how can I change that?

[@barninthebush]

If you’re referring to the cars rear end going slightly sideways, try adding a slight amount of toe. This should help make the car more stable

[@slumpgt3146]

so for a fwd drift car it would be 0% acceleration and 0 deceleration

[@Areno98]

At which percentage the LSD will behave exactly like a fully locked differential, 50% or 100%?

[@rangerover06sc]

None of the above. It's never fully locked even at 100%

[@victor7258]

Gracias por esta explicación.