Building a 1500hp Billet 20B 3-rotor | fullBOOST

For over 20 years, Australian Mazda performance power house Promaz, has specialised in everything rotary engine powered. From mild street engines to utterly wild race applications, Promaz also carries out complete driveline and EFI tuning upgrades. We caught up with the team while they were piecing together a very high output 3-rotor 20B engine capable of over 1500hp for Rowdys Garage.
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#fullBOOST #Promaz #BilletPro #3rotor #20B #rotaryengine

[@fullboost]

That's one nice beer keg 😀 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.

[@wobblysauce]

That is a nice bit of kit.

[@joemaddoxrx7]

www.mazdaforum.com/forum/mazda-rx-7-33/joe-maddox-super-rare-1-100-1989-fc3s-gtus-rx7-2jz-gte-vvti-build-43602/ I have found and saved the rarest Mazda FC RX7 ever made! Now this car is rare. Really rare! Let me break this down really quick... Ever heard of the rare 100 GTUs rx7s? Only 40 have ever been claimed and only 6 are confirmed at the time of this posting! Here are the rarest rx7 FC3S models: 1500 10AE Turbo models 1400 infini 1000 winning limited 150 final edition convertible 100 GTUs... out of that 100: 83 red on black 10 black on black 7 white on blue There was only 100 GTUs models created between 1989 and 1991. If you own one of these rare models sign your car up to the registry list here on any of the rotary forums!

[@Dominari66]

Simon, is a absolute gentleman, sounds so calm and see his passion for the rotor, in his work.

[@redserjogha]

If it's possible, you should add this: en.m.wikipedia.org/wiki/Pressure_wave_supercharger to your engine.

[@josephwelch6972]

That is the exact color I would have mine too purple looks nasty on billet parts!! So wicked guys this thing blows my mind and one if I were to have someone build my rotary it would be for sure you gents!! Kudos on the REAL billet rotary!! Cheers y'all!!!!

[@john_p]

always a pleasure to listen to an expert on any topic, but particularly Simon where every word out of his mouth is informative and laid back, with zero hype .. love it, very well done

[@john_p]

@Z Der Macher they're a famously smooth motor under power. Can be balanced similar to a piston motor

[@Joeboost8805]

Why do these have to be so damn EXPENSIVE 😪

[@rigolmgs]

"still going to be a messy turbo..."

[@shaunpc2512]

That 20b is a thing of beauty, absolutely 100% a work of art. As for Simon at Promaz, the guy has so much knowledge which is priceless in this game. Thank you Fullboost for bringing such an informative video of the build 👌🏻

[@maseywat]

so much knowledge in this guys brain.

[@markoz673bajen8]

Big Brain 26yrs ago. Respect !

[@mayuravirus6134]

Anyone that makes or built or even tune Rotary are big brain 24/7

[@marzee0ne633]

Seems like a really nice guy also

[@dylannix4289]

This is probably one of the best half hours I’ve ever spent on the internet, I could honestly watch this guy assemble engines for hours on end

[@PRAD33PK]

Amazing how Simon walks us through the process so calmly, explaining his build process with humility. No doubt a mind and skills forged in the practice of his craft over 26 years. Thank you for sharing!

[@neoanderson7]

This man is a dying breed. What a fantastic engine! Crazy how much power it's making. Hats off to this guru!

[@jlo13800]

The rotary is one in sane 2 stroke! i got a few OMC rotary sled motors and they love xd-100. My GF runs and fills a few quarts of Amsoil Dominator synthetic 2 stroke oil and it works great.

[@WLD253]

Simon is a absolute legend, i used to love hearing his rotarys sing while i was working across the road cutting cabinets, kinda miss it actually.. Simon if you read this remember that black XR6 turbo that Interior f****** stunk hahaha...

[@kevinpatriarch6719]

Rob Dahm probably has this video added to his favourite playlist

[@jayknight139]

This looks way easier than a piston engine. It's like stacking blocks.

[@David-ls4qp]

There's allot

[@animefreak2062]

Not really, I have a 04 RX8 and had a 86Rx7 , rotary motor’s are leaps and bounds easier than a piston engine.

[@melonshop8888]

STIL BIG ENGINE SO PRIMITIVE 😋

[@chadunnering5733]

Like minecraft

[@peterzingler6221]

Yeah of course because they are no timing belts valves and so on

[@jebert327]

It is nice to see someone who knows what they are doing. I thing everyone can learn something here no matter what they are doing in their life.

[@atheosxgaming]

So whats your engine budget..... *Blank stare*.... budget mate....? *Blank stare*. Message received. Billet 20b is on the way.

[@YesNoMaybeIDntKnwDoU]

Hahahahaha!

[@jayknight139]

I bet it's around 50k

[@VicFroman]

Holy crap. Are you serious that is what this motor costs?

[@The.Drunk-Koala]

about $22500. A billlet engine costs off the self.

[@shingnosis]

@@VicFroman If you divide dollars through hp it's not that expensive..

[@edwargo]

A stress-free N/A 3 rotor was the engine the RX-8 should have had. 300-320HP stock and it would have been a fitting successor to the legendary RX-7.

[@viper22jc]

I 100% agree with you. An NA 3 rotor should of been the RX8 engine.

[@Diontb]

@@viper22jc wouldve never worked with emissions

[@pe-peron8441]

@@viper22jc A 3 rotor engine is inevitably more prone to overheating and less balanced. I think the Renesis was the correct choice

[@throwback19841]

The fuel consumption on a the RX-8 really hampered it as a serious proposition in the market. That would have made it even worse. Remember, you dont just need a few rotary nuts to buy one, you need normal sane people to do so as well.

[@HeavyMetalorRockfan9]

the real solution would've been the 2.3l MZR engine. Not so much rx but it would've been a crazy silvia replacement

[@STREETCARCULTURE]

I’ll have to sit down and watch this later. Nice.

[@raddeal1]

Thanks for letting us know

[@Deltarig]

Make sure you let as all know when your about to take a shit too then take a sample and give it a sniff.

[@mikeymasi]

no dramas m8, take your time!

[@jayknight139]

Did u watch it yet 😂💀?

[@ghshrksidhc5460]

So did you watch it?

[@bigshan5806]

As a tradie I love watching a master tradesmen do something he loves to do. The finished product is just on a another level. Beautiful

[@ryanworkman5229]

It's always a pleasure to watch one of the 'older gentemen' of the rotary scene imparting their knowledge and still showing the younger guys how to build engines.

[@Hey_Sneezy]

I know I am 4.5 years too late, but this is awesome! What a heap of knowledge.

[@FalconPunch1978]

“Liquid ice” ?! Is that bottle filled with water? Well played Norton.

[@davenone7312]

That by far is one of the most beautiful engines ever!! Absolutely gorgeous!! Back in 1978 I rebuilt my Mazda RX2 engine in my barracks room. It was alot of fun to say the least. That little RX2 would get up and go!!

[@delzworld2007]

Way back when I was an awful lot younger, we knew these engines as Wankel engines, named after the German company that developed them in the 1950's. Such an incredible example of extremely high precision engineering. Great to see that there are people around, like Simon, dedicated to this old and still evolving (revolving) technology.

[@greanstreak04]

Truly Autoerotica at its finest. A beautiful engine making a wonderful sound. Assembled by a Master Craftsman with decades of experience with calm, clear, and concise conversation. 10/10, will watch again...

[@corporalpunishment1133]

Great video and it's good to see Aussies selling these parts to the world because they are the best parts in the world.

[@AnthonyGriz]

There's just something so incredibly soothing to see a rotary being built. Would love to hear & see more about the eccentric shaft bearing setup, specially in that coming 4-rotor build!

[@Drew_peaballs_128]

Simon seems like a real good bloke! Nice episode guys!

[@shelvinchand9551]

The Aristo in New Zealand is sick, drift build and sounds so crazy! Absolutely lovely 😁😁

[@MafiaboysWorld]

What. A. Masterpiece. ♥️♥️ Love the anodise, just compliments it perfectly. 👌 Beautiful build by Simon, and gorgeous story work/editing Luke. 👍

[@523motorsports]

Why am I so interested in a rotary engine! I don’t have a rotary car but they are so interesting!

[@camelfetus1812]

Everyone loves rotary engines...they’re just perfect

[@bluebird8004]

Great vid guys. This guy has a crap ton of knowledge with old school passion and techniques. Thanks for presenting this masterpiece to us 🙏

[@bmjca123]

This is one of my favorite engine videos by far

[@dbx1233]

This is very impressive. I love the attention to detail this guy gives to building these engines, they are beautiful works of art.

[@Skyrexx7]

I've watched this video countless times, what a piece of art the rotary engine is perfect 👌

[@jm361]

He is a living Picasso/Da Vinci of our time.. His work/passion is super sick! thanks for sharing this!

[@seanc6754]

Lots of respect..can really tell he likes building rotary's and puts a tremendous amount of thought and care into what he is doing

[@thatcornfedrx8guy372]

Definitely capable of 2200 HP with the right tuner 👍 I've seen some 1600 HP 13Bs running from 6.50 to 6.16 seconds quarter mile

[@jlo13800]

What premix ratio did they run. i fill and mix amsoild dominator synthetic 2T

[@thatcornfedrx8guy372]

@@jlo13800late response but it’s definitely a heavy Mixture most likely 2 oz per gallon or close to even 3 oz of premix per gallon for those monsters

[@alouisschafer7212]

These engines have come so far. Mazda put them out into the world and the people took over

[@HANDYMANCHANNEL]

I like it rotary engine.

[@robertreavley7145]

Wow! Simon is a nation treasure! What a great engine!!

[@aryoung533]

Wow an amazing video guys!!... I think it's definitely the future of rotary engines beyond Mazda manufacturing ...The billet gear is like rotary heaven so can't wait to see how the future development and other parts turn out.

[@nomoremr.niceguy4778]

Thank you. I’ve watched this three times already and each time I learn something.

[@pittassavvas7512]

What Simon says, is only a fraction of what he does. HP comes through know how, and Not just having the money.

[@somemusic789]

What a great video! Maybe it's just me but watching that guy put that motor together you can tell he has such a passion for those motors!

[@gregbrindley1581]

Nice work Simon. Nice to see things are still going well for you.

[@seanriopel3132]

Love the anodizing and color. Really highlights the different sections.

[@Skyrexx7]

I think I've watched this amazing build more than 10 times, just can't get enough of this build!❤

[@allsearpw3829]

Hi an AMAZING Piece of engineering ,I didn,t know there was such a following for the Mazda rotary engine still after all these years .You rarely hear much about them in the UK .Thank you for this video .

[@sivapoobalasingam9623]

Oh my... how sexy is that 3 Rotor - well done...and that torque wrench looks like a "warren & brown" with a pin to let you know when you hit the right setting - very nice wrench.

[@3800S1]

I got the same one, warren & brown all the way.

[@dazaspc]

Used my Warren and Browns for 30 years on a weekly basis. Personally Checked calibration every 3 months and only needed adjustment twice out of 3 wrenches due to the popper pins getting worn. You could submerge them and clean them and the always hold calibration. Unlike the modern stuff even the electronic ones where they rely on grease and/or piezo sensors that need frequent calibration.

[@Lurker1222]

This video is such a breath of fresh air compared to the other crap on youtube.. THANK YOU!

[@anthonyboulus9042]

Fullboost the original in Australia. Love it guys

[@PhamVans]

Pistons are super cool, but these rotaries are 🤯. All that billet must make it reliable AF.

[@MmeDesgranges]

Another expert and gentleman. Great interview and info FB!

[@brandonfrancisco1533]

This video was awesome. I couldn’t take my eyes off the screen through the whole thing. Simon is a mad scientist

[@jungofett]

This have to be one of the best looking engines i have seen. Robs is 4 rota looks good but this looks next level.

[@HSKFabrications]

That clown is always claiming shit he can't claim.

[@ThreeDaysOfDan]

@@HSKFabrications Rob is a tool, none of his engines last

[@HSKFabrications]

@@ThreeDaysOfDan Exactly

[@jackpowell9276]

Im late to this party but i really enjoyed listening to a master craftsmen talk about craft. What a beauty that engine is.

[@HandSolitude]

I've got the same torque wrench. Got it from my grandfather who runs a second hand tool shop.

[@SupraBdub]

What brand is the wrench?

[@oetic5016]

@@SupraBdub Warren brown if I'm not mistaken

[@cars3800]

Don't you hate it when you forget to click in the pin lol.

[@gregthornthwaite8011]

Yep.... OLD SKOOL torque wrench ... a Warren & Brown, Ozzy made, not chinese crap :-))

[@stopspin]

Promaz and Pac Racing are probably the best for building aftermarket rotary engines from scratch and all have their unique philosophies in engine building, but the end results are both good. Great job guys. Nice to know if your OEM rotary engine blows up, there's still businesses building and manufacturing their own branded rotary engines and better than the OEM manufacturer.

[@lukehindle4680]

love to see the old Warren Brown Torque Wrench in action. you dont need to spend thousands on Snapon or something.

[@gav240z]

I nearly bought the old Warren Brown warehouse in Footscray. Was gonna turn it into my home. But site had a lot of contamination problems.

[@mustangdemon87]

Doesn't matter what torque wrench you use if its not regularly recertified.

[@Shadow0fd3ath24]

Even digital snap ons are under $600

[@ataz0th218]

I know nothing of rotary engines but this is machine art right here

[@patbai6331]

Wow epi, love the purple, those housings though! The chrome love 😍

[@troybooker3534]

Simon, That's the first time I've seen an engine assembled in the kitchen..great stuff !

[@bollinsracing74]

Great video, loved watching the engine build seriously a thing of beauty

[@platinumeloishell2685]

The way this guy talks is amazing, he truly is passionate about what he does

[@IhsanMujdeci]

Takes a master to blend the old with the new and make something awesome. Love watching this. Also the line "you'll hear my wrist click, I've done this a million times", no need for a torque wrench. So funny.

[@Burgwyn]

Top notch professional. A pleasure to watch

[@aguerr211]

This man needs his own YT channel, dude is a natural. Out of curiousity, what would be the cost of a billet 20b installed on a 2006 RX8?

[@OneTwoThreePunch]

Depending on where you are at…. Defined auto works near Columbus Ohio builds a 4 rotor for about 40k. I watched him do a 1-5 gear pull in the country and it was unreal. It puts out about 700 NA and 1200 with boost.

[@glyphnir1893]

I’ve never really worked on a rotary but people who have constantly tell me they are crazy easy to take apart and put back together I’m looking forward at trying one

[@Jolinator]

This vid was a treat to watch. Great camera work guys.

[@ferdi0114]

great machines are created from the hands of great people

[@anthonyboulus9042]

Yep love that aviation gasket sealer.. the best use the best

[@godfreypoon5148]

Gotta admit, it smells nice.

[@daveshaw9344]

Oh man...that preview image is a thing of beauty Never seen a more aesthetically pleasing engine

[@pauladams1156]

Is that rob dahm I can hear crying??🤣🤣👌🏻

[@preludedude4765]

He literally has a billet 4 rotor lmao. Wastegate makes 1000hp lmao

[@preludedude4765]

@Jake Heke been fixed for awhile now and doing way more power since this comment perfectly reliably

[@preludedude4765]

@Jake Heke it literally isnt leaking anything thru that whole video

[@666silva666]

Got to love that Indian Head Gasket Shellac it’s the best!!

[@-MacCat-]

This episode would win the equivalent of an Oscar if there were awards for car/engine porn! Thanks Fullboost 👍

[@johncreed-sy3jd]

Look how smooth it locks together Primo!

[@massaad1992]

An absolute masterpiece of a build and video. Great work guys 👍

[@DavidHolloway-l3e]

A fantastic piece of machinery come a long way from when I had a 12a twin distributor. 😊

[@mobiusclean6440]

Pretty damn cool bananas right there and Simon seems to know what he is on about going by what he was saying :)

[@Rollwitme]

One of the most fascinating builds I've seen ever!

[@mazcatii]

Get the baby oil out lads 😍

[@harrynelson9203]

And the towels, tissues won’t be cutting it

[@DanMarcelino]

I've noticed really seasoned, great engine builders tend to put the rotor down first before the housing.. pretty cool to watch.. then you watch other videos; you can see the difference.

[@7071t6]

Beast of a engine and assembly, just imagine the time and effort of just the engineering drawings and measurements and then having a real good CNC machinist and have everything as perfectly round and centered, that a factory engine will have nothing on this beast no matter how you look at it ? Norton products are great stuff as well, there's a lot of USA based performance products which people should be using to save a lot of money especially when using hi speed air tools and sanding disc's, its worth investing in hi quality products that way your not spending so much extra money on items, which are used all the time which norton sell the merit brand, which is so much better product. I used to sell the brand called merit products, i think they might be the same, but sold them in kits and they outlast anything 3M can make and are a little expensive, but if it can go through hastelloy metal and inconel alloys with a 400 grit 3" disc pad and the same from 3M you would have a 100 grit and spend 3 to 4 times as much to try and get the same result, The afterburner rings on a F18 hornet are made from Hastelloy alloy just imagine what it can do to most normally alloys and metals, basically they make so many different sanding disc's and shapes that i sold a few to the V8 supercars racing teams including Larry Perkins in Moorabbin workshop and also others as well, but mainly to aircraft maintenance companies including qantas and Ansett when ansett was around. :)

[@rondillon6746]

True Masterpiece. Thank You Mate. Ron Dillon, Dallas/Ft Worth Texas.

[@vincecloudchaser2486]

Had to explain to my Grandma Mom Wife Why I need 3 doritos.

[@roocrew86]

Incredible

[@mikeymasi]

bloke is a wealth of rotary knowledge. how do you bottle that?

[@daltonbedore8396]

the best way is probably to buy an engine from him ;)

[@ethanwang2800]

Most beautiful rotor engine ever

[@alialhosani8899]

please we need you to film the 26b build

[@troylee5641]

The real masters of rotary engines are in Australia 💪💪💪here from Costa Rica 🇨🇷

[@chrisoh6627]

That's beautiful 💯

[@aarontolman8866]

Absolute therapy to watch this!

[@alltheboost5363]

I would totally build a 3 rotor if it wasn't so expensive... they're amazing engines.

[@glenbutler5561]

Amazing that little engine puts out so much power

[@TheRealJoshN]

aviation gasket glue for everything !!!

[@bernardonavarro3409]

This is a great powerful engine with the best sounding gearbox. Thanks a lot for working with the best materials.

[@jinan_hwasal]

Its a living art and i felt so shame that i only can watch it through phone screen..😭😭

[@musskeeterbump]

That motor looks like a modern art masterpiece , it's magnificent .

[@philmay7834]

Amazing stuff! I’ve always thought rotors weren’t given enough respect in the hop-up world. Great to see Down Under’s still carrying the flag.

[@toolguyslayer1]

Carrying what flag

[@marksmith2726]

What a great video, nice and easy to watch no BS, just good workmanship.

[@PocketUau]

When I heard him say it was gonna be dropped into a BMW, my nuts legit touched the floor.

[@ryanhall995]

An artist at work. Looks mint👌👌

[@jimmyc3708]

fk, just watched this whole video that goes for 30min never normally happens but this one was special. Stupidly Nice!