What is "Kinematic Posture Control"? (FM Live)

[@Losna61]

Thank you very much for the complete explanation of how KPC works. I was particularly interested in track behaviour of the system and, as I worried about brake overheating problems, I'm very happy that disabling ESP/DSC also disables KPC. Thank you again!

[@alkalinetaupehat]

This is the video I've been looking for on this new feature, great stuff Keith & FM team!

[@chekp38]

They are slowly delivering 2022s. I actually have a 2022. I traded in my 2019. Corners much flatter.

[@jameswillard1]

Yes, I saw they arrived already. I was actually thinking of upgrading my 2019 to that new metallic platinum color myself. Do you mind me asking if they discounted the car or sold it at MSRP on the 22’s?

[@chekp38]

@@jameswillard1 I ended up paying MSRP but they gave me a really nice trade in on my 2019 GT. Huntington Beach Mazda.

[@chasem3549]

How does a 2022 corner flatter than a 2019?

[@chekp38]

@@chasem3549 a little bit. Not a ton. I think some nice big sway bars are still needed. Interestingly enough for just every day driving I like the suspension better than my 2019.

[@chasem3549]

@@chekp38 maybe it is the KPC

[@Saboda53]

Terrific! In my fourth Miata now (and I drove an RX-8 for over 13 years); I’ve always loved Mazda’s smart little engineering decisions! Those guys over at Mazda are, indeed, a clever bunch!

[@DAMC122]

how many miles on your rx8?

[@Saboda53]

@@DAMC122 I sold it after 13+ years, 42K miles. Never had a problem ‘til the cat went south. Then I sold it for fear of not being able to get proper service/parts when traveling through small towns. I so miss it!

[@hypnotechno]

Absolutely mind blowing presentation . Thank you !

[@rhollyday]

New 2022 Miatas are at my dealer in NC now. He anticipates no shortage.

[@marcozanuttigh2060]

This system make me think about the trick mclaren f1 team put on their cars in 1997. Obviously not that sophisticated, but simply a pedal to operate only one rear brake at time in the middle of the corner for helping cornering performance

[@kabel9357]

Does replacing the shocks/springs and lowering the ride height and/or changing spring rates have an effect on how this system affects the driving experience?

[@FlyinMiataVideo]

The mechanics will still be the same. There will be less suspension movement with stiffer springs, of course. It may help a car that's been lowered without proper attention to spring rate as it may help keep the rear off the bumpstops.

[@violinmiata]

Dave Coleman! I remember reading his column in Sport Compact Car, always genius always funny

[@kentcurrie7326]

Eternal blue ND in background?

[@GS-xp5jq]

How does KPC effect winter driving? I plan to daily a ND2 w/LSD up here in Canada and am debating between a 2021/2022 MY.

[@FlyinMiataVideo]

It's unlikely to be a negative factor in winter driving, although it will likely not have much effect in really slippery conditions because you're not generating a lot of lateral forces anyhow.

[@JamesLCoxe]

Cool, Mazda please sell this update to ND owners

[@kekethetoad]

Mazda should release a firmware update for older models so they can have KPC as well!

[@mikevictor]

Nice front lip on the ND in the background. Who's the manufacturer, can you let me know? Good video too, thanks for the info

[@FlyinMiataVideo]

Those are Carbon Miata side skirts, ducktail and front lip. www.flyinmiata.com/ND/featured/stitch

[@mastercricket7626]

so its meant to improve drivability and handling ......i love the idea of further improving the handling and capabilities of safer more aggressive drivability in the best lil sports car ever 💪 ..... peace n love to all and stay safe and always have fun and stay rad

[@fireonmytarget8937]

My fiesta st did the pretend LSD thing. It burned thru brake pads when driving it hard. Keith I would love to watch a sit down with you and Dave. I've been a big fan of Dave since the Sport Compact Car days.

[@2007MXV]

Per the R&T article, KPC uses 45psi brake line pressure whereas the DSC/TSC will apply 450psi brake pressure. Electronic differentials will apply that level of braking, so the MX-5’s system won’t eat brake pads that quickly.

[@fireonmytarget8937]

@@2007MXV I think the Mazda system is going to be good. I wasn't trying to say that I thought it was going to be like the system on my fiesta. The ST was fun but I kept running into little things that reminded me it was a hopped up economy car vs a car designed from the start for performance like a Miata.

[@TransformHypnosis]

A+ for Mazda making this an optional feature

[@AlinB1108]

So kpc is off with tc off? Or is there a different way to turn off dsc? Can’t find much online in dsc off.

[@FlyinMiataVideo]

Traction control and dynamic stability control are basically the same thing - you can't separate them on the Miata.

[@cordbauer9038]

DSC is amazing, but tends to eat brakes....at least on heavy German sedans.

[@richard-mai]

Does Flyin' Miata's recommended wheel alignment numbers still apply to cars equipped with KPC? What about with OEM 16" wheels?

[@FlyinMiataVideo]

Yes. The alignment numbers should still work fine with little to no effect on the KPC. Feel free to reach out to our customer support team directly for more details.

[@joelwachter7845]

will coilovers affect the system? i have a 2023 grand touring

[@FlyinMiataVideo]

We have not done any specific testing on the KPC cars, but don't suspect that coilovers will have any noticeable affect on the system.

[@richard-mai]

Will de-powering the power steering or using a manual steering rack (if they were ever successfully implemented) affect KPC?

[@FlyinMiataVideo]

The ND steering geometry is designed to work well with a lot of available assist when necessary. Depowering wouldn't affect KPC, but it's unlikely to be a successful experiment.

[@jasper_of_puppets]

3:22 Hello, what are the side effects of adding bigger sway bars? Just added weight? Or are there other negatives associated with bigger sway bars? Thanks!

[@FlyinMiataVideo]

We did another video on sway bar theory that you might find useful. There are some other negatives.

[@jasper_of_puppets]

@@FlyinMiataVideo Ok, great. I'll check it out. Thanks!

[@Nasonix2]

Heck yeah thanks for the information!

[@dennishubbard2824]

It was mentioned in the video that KPC can be turned off with the traction control; however, Dave Coleman made the following quote, "Because there is no “off” switch for the system, drivers can’t A/B test the car with and without it working". Has it been confirmed in real life that the system can be disabled?

[@FlyinMiataVideo]

It was confirmed by asking Dave Coleman directly if it can be disabled. I don't know where Dave may have said there is no off switch.

[@ianfairbanks1318]

Sure wish FM knew more about the NC.

[@wyattyaj8224]

So how would this be affected by having aero? Since this system is assisting in strengthening the stability is fast sweepers.

[@FlyinMiataVideo]

Probably in the same way as on cars without aero, but it will be interesting to find out.

[@lannym]

Any idea how well this will pair up with lowering springs or coilovers?

[@FlyinMiataVideo]

We haven't actually tested the new KPC system on a car in person yet, it should work with a proper suspension set-up to further help balance the car and work to improve the feel of the car on corner exit. We'll be sure to update once we've had a chance to experiment with it!

[@richard-mai]

How would it affect a car with and without an LSD differently?

[@FlyinMiataVideo]

The small torque vectoring effect on corner exit will be exaggerated by the type of LSD the Miata uses. That's about the only difference.

[@brucesherman7258]

Do you think your LBBK would work well with a KPC-equipped ND? Fox suspension?

[@FlyinMiataVideo]

Should be no problem at all. The only potential problem would be if you were running grabby track-oriented pads.

[@timsul3092]

What is the color of that beautiful car behind you? Is it a club or gt? With the skirts and front air dam it could be a club..

[@FlyinMiataVideo]

That is an Eternal Blue RF GTS. The lip and side skirts are carbon fiber pieces from Carbon Miata.

[@DessikaModus]

Would this affect mechanical grip with loss of body roll?

[@FlyinMiataVideo]

Maybe a small increase in grip due to improved camber control. It's hard to say if it would be significant.

[@DessikaModus]

@@FlyinMiataVideo would this also produce mid corner understeer with weight shifting off outside front? Even though it is torque vectoring to make up

[@FlyinMiataVideo]

@@DessikaModus Body roll isn't a cause of weight transfer, it's a visible manifestation. This isn't shifting weight on to the inside rear wheel, it's pulling it up because of the direction of the forces acting on it. Basically adding a little more compression of the spring. So I wouldn't expect mid-corner understeer.

[@hotterotter1367]

So there is no way I can ever built this into my NB, I know it would be an enormous effort to just add all the sensors the ND has but due to the fact that they, so to say, "block you from getting the software" I have no chance anyways. Even if I change the ABS.

[@FlyinMiataVideo]

Even if you did get all the hardware and software in place, this trick relies on the car having anti-squat geometry in the rear and we're not sure the NB has that built in. It could probably be done by someone who was very skilled and motivated, but the whole thing would have to be created from scratch. The only part you'd be able to reuse from the 2022 would be the concept.

[@Moriggia]

Is there a way to unistall it?

[@FlyinMiataVideo]

If you disable the DSC the KPC also goes away.

[@Moriggia]

@@FlyinMiataVideo thank you very much, maybe in some cases it is better to disable it.

[@Sideways_Singh]

Oh wow, I was excited about this untill I heard it turns off with stability control off, meaning its useless because I've never driven the car with stability control on in my life. 😂 Thanks for the info

[@hypnotechno]

Oh wow . Why ? Please elaborate

[@mitoda]

Like the Citizen Chandler, I'm wearing one myself : )

[@FlyinMiataVideo]

It's actually a Sturmanskie Gagarin on the Chandler strap ;)

[@mitoda]

​@@FlyinMiataVideo Nice, looks good with the Chandler strap.

[@ChonkTek]

Infiniti has been doing a similar system for many years, thus the reason the rear brake pads on G35's wear it so much.

[@FlyinMiataVideo]

Is Infiniti doing torque vectoring or using the brakes to flatten out the cornering? If you're seeing high levels of wear, it's likely torque vectoring which is much more aggressive.

[@ChonkTek]

@@FlyinMiataVideo I believe the service dept was explaining that there's a brake portioner valve actuater doohickey that adjusts the amount of braking power each corner gets. I don't think it does anything with torque.

[@FlyinMiataVideo]

@@ChonkTek The purpose is likely to drag the brake on one wheel enough to transfer torque to the other one. It's a quirk of how differentials work. This can be used for traction control or to "pull" a car around a corner by putting more torque through the outside wheel. It requires a much more aggressive amount of braking than Mazda uses for KPC.

[@ChonkTek]

@@FlyinMiataVideo Ah, Right! Indirectly it does transfer the load due to the way the diff works. Thanks

[@stantheman5163]

Sounds like something Porsche came out with a few years ago.

[@etherboy3540]

My vision isn't the best, but is Keith's name really Professor Batshit?

[@FlyinMiataVideo]

Not legally.

[@adamsteele6148]

All this does is wear out your break pads earlier and unevenly. Although it is only used when cornering extremely hard. It's a gimmick.

[@FlyinMiataVideo]

Don't mistake it for torque vectoring. The pad pressure is very light, and it's not just used for hard cornering.

[@Dr.IanPlect]

adam; well done exposing your ignorance

[@maxcactus7]

Can't wait for FM's actually test drive review of the ND3 with this system!

[@2007MXV]

Software tweak does not make a new sub-model…still an ND2.

[@jasper_of_puppets]

@@2007MXV ND2.1

[@2007MXV]

@@jasper_of_puppets still a ND2

[@jasper_of_puppets]

@@2007MXV Or is it???

[@mugdays]

gotta say I'm not a fan of these artificial means of improving stability/balance/rigidity/etc.

[@ChonkTek]

Hopefully it isn't unnatural like the feeling steering servos have on Inifinit cars.

[@jasper_of_puppets]

Bro, _everything_ is artificial.

[@ChonkTek]

@@jasper_of_puppets sure, but some servo systems feel VERY disconnected to the terrain

[@merlyn2121]

What is this guy even talking about?

[@jasper_of_puppets]

What is anybody even talking about?