HP4 Race Dyno Runs and detailed discussion with BMW's Nate Kern

BMW brand ambassador, Nate Kern, drops by Brock’s Performance to visit with his $78K, 320 lb. (dry) carbon-fiber-frame HP4 race bike (#137 of 750) in the trailer. After a discussing an unfortunate theft of the bike recently, Brock agrees to test the bike on the dyno to make sure the thieves didn’t hurt the engine. Listen to Nate’s detailed explanation of the ‘trickness’ going on in the HP4Race bike, including a talk about the traction/wheelie control electronics, swingarm and, WSB brakes. These items used to be considered ‘unobtanium,’ but are now available to anyone. Well, almost anyone…

[@BOOSTEDH2]

Im so glad he got that bike back! Hate theives

[@BOOSTEDH2]

1mic yes someone stole his trailer with this bike and a couple others. Thankfully they caught the pos

[@nothingtoseehere4902]

That look on Nate Kerns face when Brock said 210hp was priceless...I could literally see his T level drop instantly.

[@JaretCampisi]

Very cool video. Love to see the pinnacle of motorcycling being displayed on KZbin for us to appreciate. 377 lbs at 215hp is pretty remarkable. 👏

[@beeweezee71888]

Jaret Campisi Agreed

[@fritzd2116]

"No no, FEEL the brakes." LOL Awesome bike. Great video, glad you got her back in one piece!

[@beeweezee71888]

This is one serious machine absolutely incredible!! Shout out to Nate always a pleasure hearing him break down the analytics of the bike very knowledgeable. Thanks Brock.

[@jimyswerld4705]

Hey Brock im from australia and just love your vids and the very honest way you go about including veiwers in your vids and conversations about what you do which is very very rare in todays society 👍.

[@d.fresh.750]

That bike is an absolute piece of art. I was so glad to hear that it was recovered, shortly after being stolen!

[@ianjames4849]

13 people have Ducatis LOL

[@cletus2941]

Brock, you need carbon fiber shirt and shorts, improve the aero on that dyno :)

[@BrockDavidson]

I have a carbon fiber: watch, pocket knife, wallet and...trucker cap. My wife thinks im nuts ;)

[@adult1122]

This was real nice to see! 211hp at 377 lbs is crazy!

[@BillNiersbach]

So glad you got your trailer back Nate!!

[@greyanaroth]

Man having this stolen must have gutted him. Hate thieves. Glad he got it back

[@BucketWheat]

NATE is a #1 GUY!! I have had the pleasure of interacting with him several times -- particularly at the Atlanta Motorsports Park, were he taught riding classes! KNOWS His Stuff...but doesn't have the "Big Head"...and is always polite and glad to talk with us 'little people'... I wonder if any of those 750 editions of that bike are still 'available'... just in case I Win the Lottery tonight...? BTW -- Still looking for some more Dyno work & reports on the Kawasaki Z900RS... My Brother ordered and got the First one in North GA, back in December... and I am hoping to get one myself pretty soon... (-;

[@BrockDavidson]

N8! is an awesome guy. We are working on the next episode of the Z900RS.

[@cbctitre]

saw this bike up close at NYST SHOW...its really looks stunning...i would love to see what it produces with some mr12.. got a short clip of this bike at the show on my channel too

[@aljenysilven4121]

no lie... im pretty sure i hit like before i even watch Brock Davidson youtube vidoes!!!

[@StrikerSG]

Serious bike for serious pilots...

[@AkaOjii]

Great video. Love this bike. Just a little out of reach for me haha. Got a GixxeRR L8 and looking forward to the next S2B episode...

[@pags1981]

That bike is the daddy. I think the 2019 bike will probably change the game again, will be interesting!

[@GIGABACHI]

Track ONLY . . . you can keep it. Even if it had 400 HP.

[@michaeljkasnter]

JIGA BACHI unless you have a private track or ride it in a rural area !! I guarantee if i owned that bike i would ride it on the street

[@zacfalcon2484]

I goddamn love the hp4

[@MrStair308]

Man, if I had the spare cash I'd buy a second one of these bikes.

[@mudddge]

For those wondering like I was, his trailer containing multiple bikes was stolen overnight while he was staying at a motel

[@irshadparak3285]

Brock can you maybe do a vid explaining the difference between power at the crank and power to the wheel.

[@BrockDavidson]

@Irshad - No video required. We use a multiplier of 1.11 to establish crankshaft HP vs. rear wheel HP (due to drivetrain losses) on our dyno. 211 x 1.11 = 234.21 HP at the crankshaft.

[@stuwhite1969]

Why is fuel so low on octane in the states? normal uk fuel is 95 and premium is 99

[@BrockDavidson]

blog.brocksperformance.com/faq/why-are-us-octane-ratings-so-low/

[@future62]

You could wheel it around the paddock one handed like a bicycle

[@jtab5392]

He wasnt lying about the brakes

[@Never4filled]

Brock where the new ecu flash/tune video for the BMWS1000RR... That's what I'm waiting for... Nate is a good dude. Met him in Atlanta

[@BrockDavidson]

We are working on achieving honest improvements... it's going to take a while.

[@BangAverageRider]

such a great bike. its great that BMW made a bike like this for the public to buy!

[@dariodipaola8445]

Not even close lol.

[@Brando850]

I'm holding back from a new bike purchase just to see what they will carry over to the new RR from this bike. If you think they won't, look at what was carried over from the original HP4 to the new RR.

[@BangAverageRider]

Brando850 I think that's a sensible idea.. I've heard the new BMW is going to be really good..

[@jamest5149]

I have a matching right arm scar as Nate, compound fracture of the Radius and Ulna? Mine made my arm like Stretch-Armstrong when trying to get my leather and glove off lol. Not nice seeing bones out through the skin or the following bone graphs and plates operations.

[@disturbedgsxr]

When is Teasley going to hit up that 17' Gixzilla??? When is that race at the drag strip between you and 650ib?

[@BrockDavidson]

Very soon - we just need to do a bit more clutch sorting. Ib needs to stay under the porch when it comes to drag racing ;)

[@disturbedgsxr]

Hell yah thats awesome some clutch mod ish terms hopefully it doesnt eat clutches like an R1. And for sure i have a $100 on you Brock i accept paypal from ib haha!

[@apexhunter2k]

First one to post. Great number's and I believe the only hp4 race to be dynoed.

[@lametraserillos1]

no, now you can see another hp4 dynoed on england that put 202 rwhp... (is a very acured dyno)

[@backpackercarworld8795]

is this bike nate kerns or is it for sale?

[@BrockDavidson]

This is his personal bike - no idea if he would sell it. Ask him.

[@lametraserillos1]

80.000 dollars cost new bike

[@shawnhughes615]

Brock I have a ? My cbr starts in runs but the minute I give it gas it shuts off what’s your thought

[@VASILLEVSKI1878]

Probably aggressive ignition or issue with IAP maps.

[@efren1475]

is it true that you have to change the engine every 5000 miles o km?

[@scottieray]

Efren No. Go to 44 Teeth on KZbin and they have a great video on the HP4 Race about all of that.

[@efren1475]

ok let check that out!

[@trashcan9615]

How much power does a 2015 r6 put down on your dyno?

[@ur2slob724]

110 on a good day 😂😂😂

[@yamabushisama]

Wow Brock my zx10 loses power pass 10.000 rpm what could be the issue. Pc5 . K&n air filter half acropovic exhaust install. Could you help

[@BrockDavidson]

What year is your ZX10 and do you have your ECU flashed?

[@yamabushisama]

Brock Davidson year 2011 stock ecu pc5 has map from dealership.

[@BrockDavidson]

This should tell you everything you need to know: blog.brocksperformance.com/kawasaki-zx-10r-11-15-information/

[@natj6627]

Not a bad bike but for the price I would rather get a h2r especially looking at the dyno readings

[@scottieray]

Ha...that 'simple' screen is about $2000.00

[@ur2slob724]

Is that it? My stock s1KRR screen is $2000 when bmw replaced it 😂😂 I would say this screen is around 5k

[@myboy051]

Brook do you think you could build a comparable bike for $78k ?

[@BrockDavidson]

Absolutely not. You would have $1M+ into your carbon fiber frame...

[@maybelater1511]

Idk... 215hp for $78000 not sure if I would buy one even if I had that cash. But nice to look at .

[@justinporetta1803]

Simply amazing

[@lewisdeclouette6342]

that's a nice way to spend some change

[@jeffreyhinman1397]

Lmao got it from the shell station

[@adult1122]

78k is not too bad for a bike of this caliber, will hold good value. My taste is more a yamaha built version. With all do respect to bmw. I would rather rossi's bike then just rossi's calipers. Maybe bmw will start something.🤔

[@michaeljkasnter]

He must of been in Miami if his bike got stolen?

[@Da-wooley18]

I’m with you I respect the track bikes but there’s nothing like dumping the leaver at the strip and beating the guy you were just sitting next to in the staging lanes

[@DsCheng81]

Sorry, i came when i saw the akra exhaust with flame.

[@mikeyyatala6625]

What a sexy beast of a bike. German made quality none of this Italian made crap. Jealous 🙁😔

[@touristguy87]

but of course it was stolen. Bike is worth $90k

[@benocehcap]

Its 80 grand motorcycle! Think about that for a second...If you're not doing competitive racing with it, its useless! still a piece of art :)

[@ur2slob724]

Mate to a lot of people 80k is nothing for a bike. Good luck replicating it for under half a million.. carbon frame etc.. bargain if you ask me

[@timjamesvella]

Why put 93octane fuel in the such a beautiful bike. That stuff is dirty.

[@niro56]

So, you're going to put mr12 in there, which is leaded and oxygenated? Do you actually realize which is dirtier?

[@timjamesvella]

Mr Krios in Australia our 91 octane fuel has lots of build up. Best to go for 98 octane

[@niro56]

You will find videos of bikes pushing even 190 whp on 89 Shell pump gas, smooth over the long term, no problem. Now if you put 98 octane on that same setup its actually going to make less horsepower, i'm not kidding. The difference was measurable even on 92 fuel. Fuel 'dirtiness' is a totally different issue. Even 98 would be shit if it was impure..

[@lametraserillos1]

this bike have antiknock sensor for use diferents fuels??

[@kenfloe3536]

made you look lol awesome👌👌👌😂😂

[@PokerFaceEsq]

Damn, somebody stole it

[@vanquangphuong379]

can you make a S1000RR as powerful as this stupid fast bike ? Or how to make this HP4 legal on streets

[@lametraserillos1]

yes you can put in a stock s1000 rr the superbike kit of germany ... with the same specifications of this race bike... in alpha technick webb, with some options for engine tunning... very similar to wsb bmw specs... but a lot of money and the duration engine is very short... make this bike legal is difficult, no have papers of homologation,no frame identification numbers... etc...

[@vanquangphuong379]

Marko Paquetty but can a stock S1000RR made 209 hp on the dyno ? with exhaust and mapped ECU ?

[@lametraserillos1]

a stock s1000rr make 180-185 rwhp... with exhaust+filter+ecu flash= 10 hp more (190-195rwhp) + race camshafts+ more compression ratio+ 102 octane race gas+ ignition tune+valve springs+race piston&rods = 20 hp more = (210-215 rwhp) is exactly like the world superbike engine of bmw motorrad... this hp4 race engine run at 14.500 rpm, and the wsbk engine run at 14.700 rpm... more power = more $$... hondas cbr 1000rr race kits are very similar but more expensive... hondas hrc is too expensive kits... but i think that a bmw s1000 with only exhaust and ecu is enough powerfull to a lot of fun... and no be a millionaire jaja

[@vanquangphuong379]

Marko Paquetty thanks for your answer man

[@space.youtube]

"These calipers are the same ones that are on Rossi's motogp bike" lol. You sure about that? See 'motogp carbon rotor brake package' They might run something similar in wet setup when they run steel rotors. Nice bike though.

[@BrockDavidson]

@Space - I'm sure BMW's US spokesman for the S1000RR appreciates you knowing more about his bike than he does.

[@space.youtube]

Don't take my word for it (or his for that matter lol) google it. Then correct him on the quiet so as not to cause him any unnecessary embarrassment. Egos can be such delicate little things. ;)

[@space.youtube]

www.motorcycle.com/manufacturer/bmw/bmw-hp4-race-first-ride-review.html "You’ll see these binders in WSB and sometimes in wet-weather MotoGP races. Upper-top-shelf kit!" Break it to him gently. lol

[@scottieray]

So, basically this IS a brake set up Rossi runs on the R1-M.

[@space.youtube]

scottieray "R1 M"? Yep, on his "R1M", exactly. lol. Go back to sleep.

[@F92Y]

Same like Ducati v4s

[@niro56]

the ducati is shit in front of this and you know it. if i had to get only 1 i wouldn't choose it among other liter bikes either

[@user-nh8tc9po2l]

german made hp4race vs. harley US made 🥳

[@ManorMoose]

Statham

[@BrockDavidson]

lol

[@jdord4838]

Wow hope to ride this bike one day but I wonder why they are not on the motorcycle race circuits like moto america, seems like these bikes should dominate the grid, great vid though. .."Yeshua / Jesus is the way "

[@BrockDavidson]

It's politics and rules. Carbon fiber wheels are not legal in moto america, because they are not FIM legal. I can't imagine them ever homologating a bike with a carbon fiber frame. The good news is WE can purchase better/faster bikes for ourselves :)

[@jdord4838]

Brock Davidson Thanks for the info and clarification on moto america rules and thanks for continuing to put out quality products.

[@itsmutt]

"If it did exactly what it does right now, I would say that bike was the best" Thats a big statement after BMW's single win at Silverstone. 👏 By no means am I saying this bike isn't awesome and hi tech, Im just disproving Nates statement thats its the "best". Today's BMW only races to promote their product for a short amount of time, they have no real commitment or passion for the sport or really motorsports in general. BMW Mottorad pulled out of racing to focus on emerging markets in India and China, basically positioning themselves as a scooter manufacturer. They even sold Husqvarna when bike sale were not a problem, now look what KTM has done with the brand ..They are just not a racing orientated company anymore like they were in the 80's. To be the ''best" you need world championships whether its wsbk or moto gp, I havnt seen too many from BMW lately. HRC machines are thoroughbreds, since 82 they have claimed more world titles then BMW ever has. You be the judge, simply to be the best you need results and championships.

[@bradquinn1236]

Dam for a 78 grand bike I would think it would do better. But here we go again ,if u have big money or a Utube blogger Brock will tune or Dyno ur bike. Other wise better find someone else.

[@SteezeN]

Brad Quinn the bike is worth the 78 grand. Buy a brand new s1000rr & do all the engine work the hp4 has get the same swing arm & brakes & suspension you’ll easily be over 100,000. This bike is actually an amazing deal. Since it’s basically a WSBK bike

[@BrockDavidson]

@ZX10R Ant Well said - thank you.

[@bradquinn1236]

ZX10R Ant it's a full on races bike not a street bike is my point and the average average person could not buy that is my big point . Sure it's light and good as the rider is on the track. So in ur mind and keep cost in mind where's the H2 stand then .

[@SteezeN]

Brad Quinn the h2 is a good quality bike but this bike has top of the line components, almost prototype. The brakes on the hp4 alone are a lot of money also I’m sure this bike also has a really sophisticated & very expensive ECU. The carbon fiber frame isn’t just some molded carbon fiber. The swing arms & suspension alone will cost more than your average new bike. This bike is actually made for the track & its so sophisticated that a mere mortal can get amazing lap times on it. This bike probably takes less skill to go fast around the track than a regular s1000rr bcus of all the parts. While the h2 is a mass produced bike with mass produced parts this bike has a lot of parts you will never be able to buy. The hp4 is the equivalent to a f1 car while the h2 is more of a Bugatti. Bugatti might make more power & be faster in a straight but the f1 car has basically all prototype parts & can out brake, out corner & maybe out accelerate a Bugatti.

[@bradquinn1236]

ZX10R Ant I get that part sir. But thing Bing is that would be someone's , let's say dream bike for whatever. I see I go by zx10r so is that what u ride and could u afford that BMW. I know I couldn't and wouldn't . I am talking everyday bang for the buck sir. That's my point.

[@mateeryalironperformance2395]

low horsepower....

[@exothermal.sprocket]

Bikes like this are absolutely way out of anything I care about. Would I like a ride on one? Sure, on a racetrack with a full suit of leathers, hot sticky tires. Otherwise, motorcycling is so much more than 80 grand worth of expensive unobtanium. If a liter bike could make 415 wheel horsepower naturally aspirated, weigh 300 pounds with a tank of race fuel, and rev to 22,000 rpm, it wouldn't really matter. Set up an XSR900 and ride the snot out of it. I'm satisfied. Good sounds, really light, fat torque, reliable, affordable, doesn't require 6-figure income to pay insurance.

[@the80sguy72]

It's not worth 78 thousand dollars

[@06blkgto1]

Tracy Morris lol try to build a Superbike for less than 78k I'll wait...then go ahead and add in the carbon fiber frame you'll be over 100k.

[@Jarret888]

Your right its probably a lot more 😂

[@06blkgto1]

Just to put it in perspective a Super MMX 500 is US$123,500. That's a completely hand built 2 stroke GP bike. Also it doesn't have a carbon frame. So if BMW only built 99 of these like Suter the price would probably easily be over 200k

[@cletus2941]

I know, it's worth more....

[@Bohuc56]

It is worth the money

[@nikt7883]

Though it makes 250 bhp. BMW guy said so..... watch 44 teeth Chanel

[@SteezeN]

Nikos T it is that how much the engine makes. But power is lost in the drive train so it only make around 215-220 to the wheels

[@RecluseRR]

Whats 15% of 250? 37.5. It makes about 250 at the crank. 212.5 at the wheel. Seems about right.

[@SteezeN]

Tom J. O bingo

[@nikt7883]

ZX10R Ant well the guy specifically said "at the wheel due to the race gearbox"

[@SteezeN]

Nikos T no such thing, it’s almost impossible not to get any drivetrain loss. Even FWD cars have some. Maybe his mistake or you didn’t hear it correctly.

[@maybelater1511]

Idk... 215hp for $78000 not sure if I would buy one even if I had that cash. But nice to look at .

[@ur2slob724]

Not just the power mate, carbon frame, gp brakes etc etc..