8-speed Mazda Rotary -Technology meets Performance

The ZF 8HP 8-speed transmission is quickly becoming a popular choice as a conversion option in many sorts of vehicles given their capabilities. We caught up with the team from Promaz who have recently fitted one into a wild 20B turbo rotary powered Mazda RX-3.
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8-speed Mazda Rotary -Technology meets Performance
#fullBOOST #8hp 20B #3rotor #RX3 #rotaryengine #Promaz

[@alozano10241975]

GOD bless Assuies for keeping this beautiful cars alive

[@BradCollier-zn2uc]

And New Zealand and Porto Rico ❤

[@alozano10241975]

@@BradCollier-zn2uc Oh yeah look for the Toyota Corolla named El Humilde

[@jameshatton4211]

Thanks dude that's something to be proud of. Peace l

[@stevenkelby2169]

Yeah, we ASSuies sure are great 😁 👍 🍻

[@jameshatton4211]

@@stevenkelby2169 fuck i didn't even notice that! Damn makes me look stupid

[@danielwilson6665]

Having just the right amount of technical details conveyed in a manner that most people can understand is essential. Of course the WFO throttle blasts are understood by all. Nobody does it better than FullBoost🇦🇺🏁

[@Hammo667]

It's amazing how modern car tech ends up keeping classics even better.

[@user-eq5cs8rb2p]

I can listen to Simon all day bro.. very well spoken cool, carm sounds genuine..

[@chrishill2678]

Yeah he seems like such a chill dude

[@tocsa120ls]

Half-cage. Turbo 20B. Transbrake with bump box. 300 section rears. "I just want a cruiser" :D

[@fullboost]

Sums up Australia 👍

[@rafalsanbra9758]

In the island of Puerto Rico so many rotary vehicles are seen throughout. So many car enthusiasts have a devotion for these rotary engine power marvels 🇵🇷 😊.

[@MrAllstar]

Damn, that's one of the sweetest rotary's i've seen and drives so smoothly, that must be a 8-spd ZF box he was referring to?

[@justinbrooks4872]

Simon and Promax are such a great team I was after a rx4 about 20 years ago and Simon sold me his personal project

[@peted3637]

Epic combo! Beautiful car! I have a ZF8 in a 2.8 turbo E30. Best trans swap I have done to it.

[@roysampson182]

The ZF autos are an incredible transmission. Cool to see the mix of old and new in this build.

[@jimmyj2563]

Nice to see someone doing the hard work and making a really drivable fun classic.. as someone from a transmission background I appreciate how much went into getting that right!

[@OrbitalRoc]

Old cars kept alive with knowledge and passion, cheers.

[@mrcaps1971]

Watching the video of this stunning RX3 saddens me. Of all the cars I've ever owned since 1989, I miss my very first car most, which was my Savannah RX3 . To this day, I wish I never sold her. 😔

[@craig19721000]

I know the feeling I've sold my 1 owner rx2 and my late father's rx4 many years ago but I still got my s2 rx7

[@johnmarkgatti3324]

can relate , priced one out of japan in 'original condition' a couple of years ago 117 G , we should all write to mazda , get them to do a remake , every one else has .still a very pretty car .

[@crazyg74]

I know how you feel mate. I sold my beautiful bright blue RX3 coupe in 1994

[@gaspumprob]

Just the opposite I held on to my 72 RX-2 coupe second owner California rust free car - my first car bought it in 79 Would love to ship it to these guys and have them build it proper. Probably can’t afford to do that 😢

[@graysonlove27]

I'm sorry for your loss

[@getahanddown]

Damn right 2 speed or bang shifters are all cool till you start street driving. Same with 'race clutches' when you can get good clutches that don't give dead legs. Also quiet exhaust on a car you want to take across county will save so much fatigue.

[@jameshatton4211]

Multi plate clutch is the only way to go unless your want to be doing right l leg calf raises to compensate for your left "clutch leg" hahaha Once you've had a multi plate clutch, you'll never go back to a HD single plate ever again. There's just something cool about stopping at the lights, selecting 2nd gear and then dumping the clutch and just being engulfed in an instant smoke show......then flat shifting 3rd and blazing the treads till about 120km/h then putting your indicator on to overtake the 32 skyline your about to pass with the tyres blazing away like it's black Friday.

[@adrianlovic6486]

I'm over loud. Noise sux. Quite power, good sound 🫶👌.

[@jameshatton4211]

@@adrianlovic6486 me too bro. I'm getting old I thought, but for me it's an obscure "side effect" (serendipity) of mushrooms; my ears have become way more sensitive to sound?

[@adrianlovic6486]

@@jameshatton4211 Really?! As in what they called, phelebecides, or some shit? As in 'shrooms'? That's good I reckon, Ur more in tune, sensitive so U pick up more signals, you'll detect frequencies from your car you o/wise wouldn't b4 the shrooms. Lol 🍄 dude 😎.

[@MmeDesgranges]

@@jameshatton4211 Other than racing on a track

[@josephmatuszak3855]

That's fantastic. This is what we should do with more older cars. Not everything is scrap.

[@rustymonaro184]

This rotary i could actually own not overly loud ❤ and seems to cruise really well. Even as a v8 owner i dont understand the really loud exhausts where its actually painful to be in the car for more than a few minutes in whatever its powered by 4,6,8 rotary etc.

[@Nordlicht05]

I personally hate unsilenced straightpipe exhaust. Sounds not good on my ears. Loudness aside.

[@liddz434]

That's schmick as! Never thought I'd see that sort of combo...cool to see old and new come together like this.

[@5533851]

So cool. This box would be mint in a VL Calais turbo

[@Highlander1432]

Excellent work putting the ZF 8 speed in !

[@unbelievablegoodio7176]

It is not scraping the ground, I love that. The tires fit like natural.

[@nickmudd]

I've always wanted to put a modern 8-10 speed auto on like an old carbureted v8 and see how much better they are over 3 and 4 speed autos from the 70s-2000s

[@mechtechau]

A lot of the performance/fuel consumption gains in the last 5-10yrs have been from driveline, not powertrain. There's definite gains to be had.

[@craigsampson3386]

Not quite the same but a similar thing I've seen in FB groups is that there are conversion kits to swap out the original 4sp 4L60e automatics to the 6sp 6L80 automatic in the Holden Adventra that came with LS1s, even a kit available for 6sp TR6060 manual swapping it as they only came 4sp auto from factory, so gaining an extra 2 gears either from an auto or manual conversion made a noticeable gain in fuel economy and acceleration, especially since those vehicles weigh almost 2000kg. I'd presume the 6sp 6L80 auto conversion is doable in the normal 3rd gen Commodores too since thats what the Adventra was based on.

[@sticustom]

The last Mazda RX3 I drove had a 12B motor and it went like the clappers. It was no where near as beautiful at this car. So pretty. 😍 Looking forward to part 2.

[@mydogzty]

rode past the shop on the bike today as the sun was out! Definitely want to do some work in his shop one day! What a great man love his work!

[@SteveMathers978]

Ole Simon hasnt changed. met him and Lino when they worked in dundas st. Fantastic video Guys

[@thenetworkguy_]

That’s ridiculous how smooth it is

[@Tk-ou9ec]

I really like this! Especially that smooth auto. However,personally for me I find that those rear wheels look ridiculous being that big. Doesn’t look right

[@romeoalphafoxtrot9517]

Beautiful car! It runs so smooth! Well done!

[@neilmaverick7035]

Please do some more interviews with this chap.

[@MrTurboRotary]

Greenings from USA! Beautiful machine and great job 👍🏼👍🏼👍🏼

[@madrew2003]

Not a fan of the wheel and tire choice, but the rest of it is amazing!

[@pablowvangreenlow7430]

Now that's a cool car . Promaz always standing out with great work. 💪💪💪

[@mechtechau]

Rotary + ZF is actually a great combo as a big turbo rotary develops less torque then an equivalent piston engine and there's correspondingly less clutch loading on gear changes. Mazda, are you watching???

[@JAKE-FAQFPV-CVN747]

His a master that’s why he is one of the best great video jordy and luke love the content long time watcher mid 2000s

[@dionoliveira4058]

Wow! Beautiful car, thanks for sharing.

[@A_G420]

That car is amazing. Seems like a great gearbox for a rotary honestly.

[@slartybartfarst9737]

What a work of art even part done, just love the rotary, Id ride a rotary bikes, no big HP just massive smiles per mile, Aussies get what the rotary is about and interesting engineering that is right and looks right.

[@johnvellis5148]

Beautiful car guys in Greece his build rx8 with automatic transmission from Gt86 rotary 3 greeting from Greece

[@andrewsteele7663]

That is just amazing, I remember the lads tuning their rotary engines every weekend before running them. And as they drove away, everyone heard them.

[@samuelgarrod8327]

Wtaf? I've obviously been living under a rock. 🇬🇧

[@momodad888]

It is the Mazda Savana. i made a model it circa 1972. Love it.

[@whitelion6s459]

What a beautiful car. That technology combination is well done.

[@gotsauss]

Dreaming of this engine and a full manual setup. 🎉 great video. Thank you

[@AnthonyGriz]

Awesome to see, and nice to hear something a little more toned down too for a daily option.

[@Where_is_Waldo]

There's a lot of things I love about the way Aussies speak. I'd like to incorporate that use of the word "sorted" into north american english.

[@occasx]

That accent is something that exists only in Sydney Australia. those shifts seem pretty savage at low speed, as evidenced by the camera moving back and forth during a low speed shift.

[@fullboost]

The opposite of savage it shifts great. 👍

[@MitchTube]

What a beautiful piece of work. Rotary perfection

[@lv-blackhawk]

I remember when that car first came out, If you had that car in Puerto Rico, you were the coolest person in the island 🏝

[@user-nf3oq2ge3g]

Ozzies have good taste in cars for sure

[@edwardfletcher7790]

The car looks absolutely spectacular, but the owners choice of those ridiculous wheels & tyres make it look like a Honda S600 monster truck 🤮 It would be terrifying in the wet with that contact patch. Definitely a trailer Queen.

[@fullboost]

Why is it a trailer queen?

[@edwardfletcher7790]

@@fullboost Because it's not practical to drive on the road with that crazy tyre width Vs the size and weight of the car. The rear tyres are well over half the width of the vehicle !! It's only suitable for looking crazy at shows and driving in a straight line .....

[@fullboost]

Well it drove absolutely fine when l was in the car but I'll take your word for it.

[@richardhoulton4016]

Agree

[@kirkogier1145]

Yeah ozzys ruin rx's with autos and big wheels.kiwis on top in the rotor scene with style and builds.20b was to quiet it was upsetting

[@jeremylstewart]

"Just an absolutely SICK build... Can't wait to see how it turns out!"

[@nooki1102]

Thats beautiful. Mechanically and cosmetically

[@PANN1Cau]

Wow! What a build and it’ll only get better. Would love to hear how they got it to fit into the tunnel and whether it required a lot of work or not.

[@baddaddy8718]

Those flow form Simmons look awesome under the coupe! Nice hot rod 🇦🇺🇦🇺🇦🇺

[@DM-wp9vq]

Total dream car! Especially with that trans in it

[@Harry_Bl44346]

Amazinggggggg build! Part 2 def! And more from this workshop please

[@mattt83]

Nice speedo editing on the on ramp!

[@bigmattolly4910]

Good to see some of 8hp filtering through. 👍

[@Doc_in_the_carpet_truck]

That is schmick af that thing!!!! Love the good old Western ring road T-Town runs 👍

[@johntrueblue]

Other day here in perth WA, saw a RX-3 RE12 on the back of a tilt tray truck, it was immaculately clean looking car no plates. Then the day dreams of me owning one when i was a teen, back in the days when you could still find them. That would have to be the first RX-3 i have seen in 20 yrs. Guy i worked with had a Cosmo 20B triple...

[@Rx4Lyfe]

Other than the wheel dish, dash, transmission choice this car is noice.

[@joedipietro2559]

This is beautiful but my only complaint is that the electronics kind of take it away from being a classic retro style car. I know its 2024 and nobody uses points and old fashioned ignition units anymore but computers in cars ruin it for me. I think i might be a rare breed but an old fashioned carburettored V8 that can be repaired without a computer is a bonus to me. Beautiful mazda none the less though. Great work Pro Maz 👍👌

[@masonite1973]

That ZF 8 spd is in a ton of cars and trucks. It's a versatile tank

[@boltonky]

That is a beauty for sure and using an 8HP gearbox is an awesome idea (if i didn't have a manual in my car i would totally do it) as seen a few other builds getting into them

[@pittassavvas7512]

Wow, now you got me thinking, thanks for the post.

[@constantinelheman]

Very nice pull. So smooth and brisk.

[@aaronliddell4280]

Gorgeous car 👍

[@Slipperystick73]

That’s phenomenal with the 8 speed!!

[@edinarnautovic3114]

Very nice build everything on this car looks amazing, only thing I would personally is change is the wheel size/diameter, I feel like they are a little too big for that car, but I understand if you needed to accommodate bigger brakes for the vehicle. overall great build!

[@timfitzgerald109]

Beautiful car and great innovation Promaz. I wonder how it would behave behind an aggressive Bridgeport. Looking forward to part 2 and finding out more.

[@pvsheridan]

Fabulous! The 20B is such a good piece.

[@dvkkp61]

That’s some cool tech, I don’t think we’ll see it here in nz, pretty sure it’s illegal to have an auto rotary here 😂

[@bposavec91]

the box that’s in my x5. it’s a great thing, soft as you please or sharp and quick shifting when it needs to be.

[@phenyothabe913]

It’s too civilized! Was expecting a raucaous beast. 👌🏼

[@lookingthroughice7843]

Holy shitter that cars a ripper mate and it looks amazing. 👍👍👍👍👍🍻

[@user-superior38]

A thing of beauty. Nice😎🔥💪

[@Fester_]

You wouldn't have got that in my day. I enjoyed saying that, finally.

[@dazaspc]

Nice to see an RX3 coupe. I tried to find one that wasnt rusted out in the early 80's and still had to settle for an RX4. The 8 speeds seem to stand a bit of abuse in the 4WD's but those ZF parts are never cheap compared to a GM trans. Looking forward to the second episode even if it is just to see how long the tail shaft ended up being.

[@waqarghulam3548]

Looking at the lack of heft in the A pillars I would think front strut braces would help a lot

[@huddy32]

The is the most beautiful car I have seen in a while

[@nashslife4044]

Need this on my 13b half bridge so bad 😂

[@holset82]

I wonder if they know that there are heaps of other wheels that look better than yeah buds?

[@willydilly2158]

it’s an old build, but genuine 3 piece simmons

[@kristoffer3000]

They'd look so much better if they weren't so ridiculously large

[@user-eq5cs8rb2p]

The Simmons wheel is the best cause it suits all the old cars that we have here in Australia

[@01ryan10]

Lol yep, so terrible

[@j_roache_doherty]

Dished Simmons are king 👑

[@wadepaul2943]

Now that is bad ass. Love it !

[@nickkostakis9600]

Great looking car brilliant video thanks 🙏 😊

[@jacksparks851]

I want to know more of what the 8HP is in after market ik it took over the auto industry but to hear it in drift cars makes me think there's nothing to beat it

[@TTime685]

This car is so cool. Awesome job

[@ACCELGarage]

Very cool. Got me thinking GM 10-speed for the VY in the future!

[@Hey_zues420]

That's trans makes that thing look like a dream to drive around all day everyday. If del all my other cars and take this as my only car if I had to

[@SkarTisu]

It’s hard to imagine a worse choice for wheels

[@DM-wp9vq]

Build yours, then choose the wheels you want. Nobody is building their car to impress you.

[@andresguerin7162]

Wheels are too big. Car is q beauty!

[@StuFletch68]

luv the phase 3 mirrors

[@wobblysauce]

Yep, the new transmissions are great, leap forward in tech for everyone involved, and you don't have to run that shifter knob there are replacements.

[@browie316]

What's the final drive ratio?

[@gilsondia]

I saw this car in front of my work another day, the smell of methanol or ethanol was soo strong, there was another one in another color

[@MartinMcMartin]

Standard, compulsory Aussie RX wheels.

[@DAT28C]

To fit that trans to that motor, what bellhousing mods were made? Tunnel mods? How low does it sit? Any underside pics at all?

[@ChristopherHallett]

About time someone had a crack at the 8HP, it's almost embarrassing how far behind we are with the 6HP and that thing came in local cars almost 20 fucken years ago...

[@darrenpang1318]

This..... is awesome, and how all Rx8 should've been right out from factory... the dashboard instrument is all tastefully done and fit the modern/ digital time. But I think 7-speed sequential Porsche gearbox/ transmission would be better ~ The car sounds great on the pull, and I'm glad the owner stays away from the obnoxious exhaust... Can you show us the exhaust in next video ?

[@wadegoodwin6773]

What a stunningly beautiful car

[@landcruisertoyota3980]

Far out that's awesome, smooth and easy to drive.

[@trentmarlowe7655]

Awesome work with the transmission 👍👌🍺