The Ultimate Rotary engine - BILLET 4-Rotor | fullBOOST

Perhaps one of the most sought after Japanese engines of all time, the Mazda 4-rotor isn’t even a production rotary engine. Mazda built them as a race only application in 13J and 26B variants. The latter version powered the famous Group C 787B Mazda, winning the 1991 24 Hours of Le Mans outright. Nowadays however it’s not uncommon to see these custom engines powering a street car, due to not only the performance aspect, but their unmistakable sound. We caught up with the team at Promaz while they pieced together this little gem of an engine. | www.promaz.com.au
If you’d like to be notified every time we upload a video, subscribe and then click the bell icon 🔔 next to the subscription button.
www.fullBOOST.com.au
Get your track gear!
shop.fullboost.com.au
Follow us on social media @
KZbin
/ fullboostcomau
Instagram
/ fullboostcomau
Facebook
/ fullboostcomau
Twitter
/ fullboostcomau
COPYRIGHT WARNING:
The above video is copyrighted © to Fullboost
You do not have permission to download it and re-upload it anywhere in any form. You can click the share button on KZbin for that, or copy/paste the URL to social media.
#fullBOOST #Promaz #BilletPro #4rotor #26B #rotaryengine

[@fullboost]

*What is your favourite rotary engine?* Get your track gear! 👉 shop.fullboost.com.au If you’d like to be notified every time we upload a video, subscribe and then click the bell icon 🔔 next to the subscription button.

[@mflbikes1870]

4 rotor p port

[@trentmarlowe7655]

Mine

[@onedayiwillmakesomecontent]

The one at the rotissery chicken shop! Just keeps spinnin' lol 🤣

[@DOO00K]

@Mcgoogoo Damn! You beat me to it. I was going to say exactly the same thing!

[@DOO00K]

My ultimate favourite rotary engine is the one that has had an LS swap! FTW!

[@ImEasyAs]

I absolutely love how Simon is just straight up honest and not afraid to give his opinion on things. Love the discussions you guys had on this video.

[@joes2514]

You can hear the sincerity in Simon's voice when he thanks his entire team and sponsors for making everything come together. He's a class act. I miss both my RX-7's but mostly the 79.

[@flybobbie1449]

Don't miss mine having rebuilt the engine twice.

[@joebaxter4235]

Got to give you credit Fullboost, you get some of the nicest people who are more than happy to share their wealth of knowledge. Genuine people.

[@JamieBainbridge]

What a legend this bloke is. Polite and calmly spoken, happy to share his knowledge and a few little tricks of the trade, even goes out of his way to be as relateable as possible.

[@X11CHASE]

I felt the same way

[@dannon4]

I'm an old rotary engine specialist from the 70s. Thank you for the detail and conversation in this video. It really brought me back to my days with Mazda.

[@RypienGT]

watching this guy at work, with his silky voice, is like ASMR. ........ and he likes RX8's 👍

[@omerduzyol8741]

Great built, however, I'd love to see them running after the built is completed. That would be the icing on the cake :0)

[@mazdamedia5995]

I have a running 4 rotor on my channel, it’s wild!

[@X11CHASE]

@@mazdamedia5995 subscribed immediately

[@TheHighborn]

that's where the rubber meets the road.

[@ranacherian]

Everytime i see pro rotary build videos, it look like they r doing it in a doctors office.

[@malcommooney8086]

We used to stack them together on empty 35 gallon drums outside in the sun

[@illbeyourmonster3591]

You can tell how much profit margin and room for competition there is by how the shop looks. If it looks like a doctor's office they are price gouging insanely and an open market for easy competition!

[@beerustheblack2846]

Go on then bud

[@michielnoback4359]

@@illbeyourmonster3591 Fallacy! First you have to clean up the shed, which in your case may take up to a week. And then you can do the work in a week, which now, with all your gang, takes a month. As long as you keep thinking the way you are doing now, you will be a poor bastard. Sorry! translated with Google

[@illbeyourmonster3591]

@@michielnoback4359 I'm suspecting that didn't translate properly. 🙄

[@BroomysGarage]

I’m just here for all the Rob Dahm related comments 🍿 😂

[@cheapcharlie7]

Here’s one, fuck Rob Dahm 😬

[@RobDahm]

hahaha no pressure

[@Sausketo]

@@RobDahm o shit what you think rob?

[@RobDahm]

@@Sausketo of the engine? Simon and that team know their shit. I approve. But they don’t need my approval haha

[@josephl780]

​@@RobDahm I tough you died under that lift

[@TomBudin]

no bullshit just pure rotary talk, big ups boys

[@MafiaboysWorld]

"There's not too many cars you're gonna fit 6 rotors in..." Anything that can fit a 2K Barra will fit a 6 rotor, or atleast come very close. 😛

[@wobblysauce]

Don't think there would be much difference.

[@fullboost]

He was refering to cars people might want to own. 🤣🔥🔥👉

[@MafiaboysWorld]

@@fullboost So a Renault is out of the question? 🤣👍

[@MafiaboysWorld]

@ChrisHallett83 If they can fit a 6 rotor in a damn RX4 then it will fit anywhere a 2K Barra can. 😎👍

[@snape1464]

@@MafiaboysWorld Anything fits if you drop it from high enough. And they prolly cut out most of the firewall for the rx4

[@Boon778]

Mega engine, mega coverage. Thanks a lot guys

[@superdupergrover9857]

I love how beautifully simple rotaries are. No valves, gears or pushrods; just block, crank and rotors.

[@jaydub1283]

I was just thinking the same exact thing as I was watching this video. I've built a handful of racecars and did all the engine assembly except for the things that I needed the machine shop for. What an amazingly simple setup!!!

[@themrjones]

This rivals the Mine's stuff i watched on the GT channel. Love to see the veterans kick knowledge. So valued

[@pittassavvas7512]

Thanks for the update and video, as always a pleasure seeing Simon put a rotary together. Memories of my rotaries I owned, rx2 rx4 and 5.

[@Garage35Racing]

This makes me want to revisit the dark side.

[@MafiaboysWorld]

As someone who saw what you did with the HB Cosmo back in the day Lance...DO IT DO IT DO IT DO IT DO IT DO IT!! 😈👍😁

[@paulmorgan1028]

Don't do it Lance!

[@Brucelovesjulie]

I don't know what you did with the HB Cosmo, but I echo MafiaboysWorld, Do it!

[@loitia64]

We have a hybrid lightside now

[@jasmith1867]

I bought a new RX2 in 1973. It was a screamer for 2 rotors. It was billed as an economy car. The best gas mileage I got was 13.5 MPG. I severely abused that engine and it never busted. Slipped my foot of the clutch at 7,000 RPM. And occasionally miss shifted to third and hit 11,000 RPM. It never broke. But the clutch wore out several times. As did the skinny 13 inch tires.

[@dubbleA100]

im simple I have an Rx7, I like Rx7's and rotaries!! If I see a rotary video, I click

[@rolandocrisostomo2003]

As of 12/2020 mazda announced that they will be making new parts for rx7s again.

[@maverickcheston8874]

I could listen to that engine builder all day, he has a calmness about him. He would be an excellent coach and is an artist at his craft. Reminds me of the Bob Ross of engine building, minus the wild hair. This guy does excellent work!

[@josephu8327]

I'm really happy to watch him assemble rotary engines, thanks for sharing!

[@TheHangarmenBand]

As a former 1980 rx7 road race crew chief, who has torn down and rebuilt a bunch of 12as, this video is inspiring, and that engine looks freaking amazing. Nice work!

[@monkistyle]

Nice video - it's watching an artist at work. Even the explanations are humble and you can tell they're from experience. Really enjoying that he's in a clean workshop but doesn't wear gloves.. that's the real guru business right there

[@bentboybbz]

I’m not even into rotaries but I feel like he is the man to talk to.

[@David__]

Simon is a top bloke - thanks for sharing.... Nice tidy edit too :)

[@lemegetatchu1989]

I've been binge watching every video 4 rotor and 787 related. Am I going crazy?

[@warricknorris5034]

I know little about rotary engines, however that was a good presentation. Nice Work.

[@nicsky20]

I loved my 13b rx3 I had as my first car. Damm I wish I still had that little bastard. Makes me so happy to see a craftsman putting so much love into his work

[@jordansrc8483]

Quad stacked Billet Dorito yes please. I like mine spicy👍😂

[@grahamcampbell400]

I’m so happy to see people still exploring these smooth compact powerful emission engines ..fascinating

[@Martmns]

Beautiful engineering, beautiful machine work!!!

[@sammywalters7418]

Man there are some brilliant people out there and your one of them just awesome

[@TurbineResearch]

Great video! If possible you should get a tour of BilletPro to see how it's all made ! Absolutely top content ! What cameras did you use for this video?

[@fullboost]

There is some footage of some of their product being manufactured in this video. This video was shot using a Sony compact camera. Cheers.

[@mythos000000025]

If you look you will find videos showing them machining an end plate setup on KZbin mate

[@dukainmanning7246]

I'm a V8 type of guy, but these engines are so interesting. Billet aluminum always looks good. Awesome looking engine!!!

[@hiteck007]

Exceptional job lads, what a work of art. Wish I could afford on of these.

[@JohnSmith-qj4cf]

Unbelievable thank uou for the video it was a pleasure to view !

[@richardseales6784]

WOW 13J R26B 4 ROTORS ROTARY ENGINE BY BILLET PRO SO SWEET ENT

[@paulbickley658]

I use to have a 87 RX7, and I am impressed. Subscribed.

[@smithy2]

Its so cool to see engines being built 😎👍🏼

[@trevorsmith9251]

What a work of art the Billet 26B is, no mention of the matching price tag to match 🔥

[@chunkycheese73]

30-40k my guess

[@zemongoose123]

@@chunkycheese73 100k

[@ANONYMOUS-sr7cj]

I love Australian ingenuity. Keep up the good work.

[@gav240z]

Would love to see a 10a build. Always been curious and super rare now.

[@Evvzt]

👍🏽

[@boborosektim]

This guy is a legend 😊

[@Holmesy89]

Funny looking packet of chips. I dig it. It still blows my mind, that you can just keep stacking them together.

[@coolbreeze2773]

Wow stunning I been introduced to rotary engines on Thursday and haven’t stopped thinking about her I want rotary in my life.🥰

[@chriss3594]

Amazing machine work. Billet pro is amazing.

[@mrdatsun211]

10A would be an interesting one for sure! Not a rotor man but love the in depth content!

[@kmalerich]

A beautiful work of art.

[@dnbtit]

Another great video. Thanks for the rotary content

[@aldostefanini1392]

Boost fixes everything i agree😂😂 Greetings from South Africa. Im installing a 13B in my Fiat x19. Can't wait to braaaaappp

[@brianbob7514]

What a beautiful piece of work ;)

[@egv152]

can't wait to have mine built 👍👍

[@andrewvassallo3444]

Nice build its going to sound amazing

[@joshdormer796]

He speaks so calmly I love it😂

[@james130362]

Very neat and clean setup

[@AK-wb6md]

I love this builder. Simon has it together,. I would love to spend a day with this guy.

[@robertreynolds6725]

Well done and fair play fellas.

[@pedromoralez7666]

Great always wondered how they went together 👌🏻

[@justbaumwolle1105]

everybody gangsta till rob dahm pulls up in a turbo billet 6 rotor lambo diablo with awd

[@alltheboost5363]

Such a beautiful engine. I hope whoever it goes to truly enjoys it... I've always personally wanted a 3 rotor with either high compression and low boost or low compression and all the Boost. But they're made of unobtainium for us mere commoners.

[@ThreeDaysOfDan]

Not really , people blow that same amount making forged internals

[@tocsa120ls]

That will be an outstanding little screamer.

[@marcusl9118]

Keen to see the 10a build now

[@user-rz6ck9eh5f]

Very good job man very good job

[@hedbngr18]

Rotaries are so simple and so beautiful.

[@kyletrevitt2336]

Thx .you are an inspiration man x

[@BIGGELATO]

4:22 "What's that part you dropping in?" me: THE DORITO!!😎

[@VT97Calais]

a work of art!

[@MrMeoow91]

This is the 5th time I had watched this video. I can't get enough. If I win a lottery...

[@RENO_K]

4 rotor??? LET'S GO!! MORE 4 ROTORRRS ON HE STREETSS THE BETTER LIFE IS

[@1sinister80]

I need these guys to build me 13b boost ready motor.

[@FullcontactNerding]

Love listening to this master of his craft, fulfilled life of doing what he loves. For all the rotary guys in the comment section, I came from the liquid piston engine to this. How come nobody sized that thing up? Seems like the next big step in the evolution of rotary engines. Would love to hear your opinions on that. If you don’t know just KZbin it there is more and more content coming up.

[@caleballen5592]

Please show the 10a build! That would be an awesome video.

[@rjaybruhh]

*_There was actually a 12 rotor engine built._* Not too much people know about it but it is sick!

[@trentmarlowe7655]

Stunning!

[@shaundevine007]

Great vid, very interesting .

[@Vipurs]

one day i’ll be able to afford one :) till then i’ll watch and enjoy

[@joergwiesmann4261]

....soooo nice , priseis Parts !!! I 'm soooooooo impresst !!!!! BIG COMPLIMENT !!! kinde regards from Switzerland !!!

[@debihsofiane3229]

Thank you

[@nickvanderstroom6884]

In a few words..its art..

[@spookydog6959]

wow nice build

[@bobotte3084]

Huge respect.

[@erikrummel6277]

That is a piece of art. Im afraid to even venture a guess on what that engine sells for

[@evanpaulsmithfalconfogolin6147]

I need one of these.

[@GaLaKtIkclan]

Man, Simon seems like such a cool dude

[@timearll266]

Rotaries are so damn cool!

[@conseated3616]

Keep stacking.

[@johnbowen2963]

iv got the wrench, 1976 , started my time. . bloody good unit, its part of me now,

[@gjmob]

I got a Warren and Brown tension wrench in 1979.

[@Phil-rs5wl]

Theres a side here in America working on a full billet engine. Billet housings & billet roters, I'm excited to see how it works out with the billet roters.

[@fullboost]

Yes its good to see people are going to be making these engine parts for a long time to come.

[@unicornsqueezins7906]

A doritos commercial was played right before this video started.... I've never seen a more appropriately timed advertisement in my entire life.

[@JoseFernandez-qt8hm]

had an RX-7 with a 13B... 22 MPG, easy oil change, filter on top of the engine, and easy tune up.... had it 8 years.... should have kept it.......

[@adamsutherland751]

Another awesome video boys at a quick guess if the billet 3 rotor cost $45k aud to build this 4 rotor would be around $60k aud to build

[@fullboost]

A lot of Doritos yes.

[@Jake_Hamlin]

Good prices compared to PPRE, It would've been cool to hear his opinion on machined/balanced rotors considering Mazda doesn't have the best tolerances from factory..

[@fullboost]

If you watch the 3 rotor video we did Simon touches on that. 👍

[@gjmob]

@@fullboost It looks like Pringles.

[@cassandrafoxx4171]

The Chevy XP-882 Aerovette prototype had a four-rotor Wankel rotary engine installed for the 1973 Paris Motor Show. They cancelled the engine because of low reliability and high fuel consumption. I wonder if they got it right this time. That would look fantastic in the rear of a car like the Aerovette.

[@j.michaelantoniewiczii5309]

19:24 - Both the materials science and CAD-CAM driven CNC machine tools caught up to the design potential of what was envisioned when this type of rotary engine was developed?

[@Bluedragon7777]

Recently Scotty did a documentary on the Mazda motors company and his KZbin channel is the most followed on KZbin for car repair. An he explained all that information.

[@toy200sx]

This guy's is very good.

[@alexpontri6769]

cool rewiev👍

[@flikstRR]

Is there any way to track where this Engine ended up? pics/ vids/ links etc.. Beautiful engine and wonderful video.

[@nelsonjaneiro5543]

This guy is berry good on what he dost👍

[@raulcontes5533]

from puerto rico good information!!!!!!!!!!!!!!!!!!!

[@anthonyboulus9042]

Love me some aviation sealant.. used it for years without problems

[@3800S1]

Me too, it's a staple in my workshop.