What it's like owning and driving a 4 rotor Mazda Rx7

[@matthewnovak7351]

I used to like vipers and lambos for their big and awesome engines, but 4 rotors have just killed all that for me at this point lol

[@eastoakland-S65feen]

Same here im like obsessed with the 3 & 4 rotors now. Im gna hav mine soon😎⚡

[@josephstearn3393]

Love the fact that this engine has that classic 3:3 misfire on the idle, just like the R26B. Most 4 rotor builds I hear don’t have that classic menacing idle. Nice one!

[@nielsreiziger4850]

this is a racecar in its purest form, just stunning.

[@GTORx7]

Maximus gameplay thanks!

[@alexkersten1964]

Holy f**king sh*t! This is amazing! Congrats.

[@GTORx7]

Alex Kersten , glad you enjoyed!

[@MrDjcamo29]

Logan C I know this video is better 4 rotor but you will you be interested in building a Honda n600 micro car with two or three rotor the similar transmission and roll cage should be a lot easier if you are message me back in the comments or personal message me if can that would be awesome and where are you located hopefully not too far west coast i'm not the real Donald Trump by the way

[@GTORx7]

Donald Trump I can do a project like that. I'm located by Columbus Ohio. Website and phone number at the end of video.

[@cod4scoper]

Logan C m

[@dylanmccallister6739]

Donald Trump I have seen you on so many videos commenting.

[@Drunken_Hamster]

Time for a fully built N/A 6 rotor build.

[@DrVonDeafingson]

Have you seen the rx4 in new zealand with the NA 6 rotor?

[@Bonercondoner]

Drunken Hamster Have you seen the video with the BMW m6 in South Africa. it has a 6 rotor, shit sounds like Godzilla after taking a big nap.

[@lukesimmons3367]

Too front heavy... Would mess up the weight distribution of the car

[@GTORx7]

A 6 rotor is pretty chunky. Even if using all aluminum side housings it would still add 10" to the length of the motor and 100lbs. In this chassis unfortunately it would ruin the handling.

[@TheLemonArmy]

Logan C you could try and mount the engine further back to compensate.

[@nk0723]

man I hope you guys keep this thing alive, the rawness of it is beautiful. I'd love to see what the 4 rotors max potential is.

[@GTORx7]

n1k007 - It will always be alive and kicking piston butt.

[@Qduce30]

FD3S with a N/A 20b uses to be my dream, safe to say this took the cake !! Talk about eargasm, I love it. Keep it up !

[@precisionlift4230]

FINALLY something different than “others” Very unique, the sound it makes is orgasmic, for a second I thought it was a motorcycle coming... I know time is the best explanation of all things, rob Dahms Build is something that is also respectable a lot of hype though, but this Build, MAN oh MAN I’ll tip my hat to you sir. This build THERE is NO hype no nothing, no one looking for a sponsor but rather sitting in front of your face. Kudos sir keep up the good vids

[@GTORx7]

I greatly appreciate your kind words! Once it is no longer 4 degrees here in ohio I will be breaking out my Rx7 with its entirely new modifications! Should be fun.

[@takis659]

Very great video!! very inspiring! nothing beats the 4 rotor sound!

[@Hacksin01]

sounds like a 2 stroke from the front and an f1 car from the back

[@strifu808]

What the FUCK

[@N0SK1LLS]

Oh my god what a beautiful symphony of fury this produces! Wet dream of a car,no questions asked,no quarter given.

[@skydoosher]

This video deserves 2mil+ views

[@nunodias3331]

that sounds like the 787b, just amazing i love the way it sounds

[@DutchlimitsDesign]

This is awesome. I can only dream of this.. I'll just continue with my VW Corrado G60 build haha. Good luck and please make more video's of this beast! I'm a big 4 rotor fan.

[@CarlosLopez-um2fg]

Beautiful video Logan, very nicely done. Cars sounds wonderful ! Music to my ears. All the best, - 'c

[@GTORx7]

Carlos Lopez , Thanks a lot buddy! I'm happy it has your stamp of approval!

[@craig19721000]

Nothing beats the sound of well tuned rota especially a 4rota long live the rotary engine

[@mxmang]

fantastic video...thanks for posting.

[@philipelder9079]

Absolutely gorgeous car and work! Well done!

[@spondonzeex10r]

The scene in Demolition Man when Sly drives the oldsmobile 442, this needs to be my 442 in the year 2020!! What a machine.... damn, I'll be googling these all night now 😂

[@cobranatesvt]

you rock logan! great video

[@GTORx7]

Rotary Nate , thank you very much

[@TheReclaimerRx7]

wow man that is so epic, I wish you could make videos of you participating in events to shock people about rotary power and how beautiful it sounds! so awesome congrats man, hopefully one day I can get an rx7 too

[@GTORx7]

TheReclaimerRx7 , this summer I plan to make more involving videos of the car racing. Stay tuned!

[@Elnyne]

Really looking forward to your technical video on the 4 rotor parts and sources

[@dillonbmx16]

It’s so wild I live right next to you guys. I can hear that car from my house

[@jacobmincks1529]

I love how you say there's only a handful of 4 rotor vehicles out there really and the camera pans over your five 4 rotors on the engine stands 😂😂😂 class man. Good for you tjough, your living many rotards dreams. I just want to drive a 13b for the first time.

[@GTORx7]

Thanks! Customer 4-rotor engines that were being built. I thought it was a nice touch too :)

[@jacobmincks1529]

@@GTORx7 very nice tough. I candy! Do you do billet or do you use your own custom made housing and irons for your products?

[@GTORx7]

@@jacobmincks1529 its a combination of oem mazda 13b parts and quite a few custom machined ones too.

[@jacobmincks1529]

@@GTORx7 very cool man. Do you do all the runing in house as well?

[@GTORx7]

@@jacobmincks1529 I do yes sir

[@Shockster0429]

awesome Logan! nice video makes me almost want to get back into cars. Your old 3 rotor sounded amazing now with 4.. simply badass. looking forward to hearing more and seeing your other series videos.

[@GTORx7]

Thanks!

[@moisesvaca8125]

I hope one day if i ever become successful i will try to build a car just like this . I no have originally idea but i believe in this

[@gregmartin3911]

That is awesome. Great build, makes all us 3rd gen owners jealous, lol!

[@GTORx7]

Greg Martin , Thank you very much!

[@luisk6007]

Amazing build! Love the sound!

[@SuperFukel]

Great job, beautiful car with amazing sound

[@bzdtemp]

Amazing car. Cool video.

[@FashoFashaun]

I'm still waiting on more videos. How much it costs owning a rotor rx-7. To the time frame balancing takes. Please give us more. Thank you

[@ricardoviolanti5780]

Great job mate beautiful thank you 🙏.

[@rafa1010011]

this project is awesome ! Brother, can you make more videos about this car ?

[@ElapsusRealitate]

Thanks for the video! Really looking forward to hearing more about your builds. Looking on your website, I'm very curious what a side port 4 rotor would sound like. Would it be more street-able?

[@GTORx7]

The sideport will sound very similar, and be very streetable. But the power is considerably less. Unfortunately the side Port 4 rotor is forced to use very small intake ports.

[@cobratoxic]

I have one question this only revs to 9K? can you built a 4 rotor that revs even more something like 10.000 rpm? And what is the rev limiter when you out a turbo?

[@logancarswell8582]

cobratoxic This motor goes to over 10,500 rpm but currently is running a restricted setup for racing. I didn't have time unfortunately to put on the unrestricted intake for the video.

[@franticRX7]

If only I had the 100K to build one.

[@MrZachItalia]

Jason Justin check the website. Starts at $30000 for complete engine

[@KevTheHunter1]

Zachatilla I think he's talking about completely building one. Including weight reduction, restructuring, restoring the shell etc. Haha

[@benjaminloscar5890]

Jason Justin what's there website?

[@NormalCredit-21]

@Zachatilla That's for the motor? Pulse Performance N/A quad rotors start around 70,000. granted those are modified and made using all new parts, but still... For a quad rotor, that's cheap. But to my point anyways: That's just for the motor. Now triple to quadruple your price and you've got a 26B powered RX. This isn't a high end V10 or V12, which are rare but in comparison to a 26, shit even a 20B, are like your dads dollar store V8. This is rotary power, and rotary spelled backwards is "Proprietary and prohibitively fucking expensive". 100,00k is a generous understatement for cars such as this one, and Formula Seven's.

[@itsMC411]

Logan Tanner why does formula sevens sound different with the pulse performance engine? Defined’s reminds me of my Yamaha r6(from the front & flyby), and formula sevens has a different tone. I just watched his new video ‘JDM cruise’ and wondering why. Logan feel free to chime in also.

[@UBIQUITAR]

Question... Has buying the 4 rotor eccentric shafts become more obtainable as far as actually being able to build these motors. I personally have seen that as the most limiting factor was cost for the engine goes. Do you think this is a fair assumption? I mean how expensive would a 4 rotor NA at 500hp level cost today?

[@GTORx7]

The eccentric shaft is not hard to get, I can sell you one. The difficulty is all the work putting it together, machining etc. Assembled shortblock 500hp is $28k

[@NormalCredit-21]

Bastards that's more than I make in a year after taxes xD Truly love what you guys do to keep this beloved platform of ours alive. Stunning work and everyone involved should be proud of themselves.

[@flexgado249]

Defined Autoworks that's as much as a brand new sedan car and that just the 4 rotor engine fully assemble Fuckkk. I love the sound of 26b engine it's super awesome. sounds like a chopper when it's at low rpm then when it's starts revving its sounds like a 600cc Kawasaki engine.

[@agarcia8800]

now make it AWD and add a 93mm turbo and see what happens.

[@darios9797]

rob dahm

[@agarcia8800]

Hey Baws ;)

[@GTORx7]

I'll stick with N/A and RWD. Less heat, less weight, less complexity. I'll challenge any AWD turbo car on the racetrack.

[@Ddabsolve]

Logan C say that to rob dahm

[@MrSony321]

Yes, put robs car to the test when its done

[@maxs1000rr]

It sounds amazing! It reminds me of a Moto Gp bike.

[@GTORx7]

maxs1000rr Thank you!

[@therealpodge]

this is amazing!! I would love this as a road and track car. same power maybe a little bit more refined for the cabin noise. it's an amazing piece of engineering guys! and you are right it sounds very like the 787b. if I wasn't looking I would think it was no.55!! subscribed! also ive noted your number in case I win the lotto as it's my dream build! thanks.

[@GTORx7]

therealpodge, thank you very much. With some more interior sound damping and rubber mounts used on the trans, it would be about there for ya.

[@MikeyFFA500]

I need a 4 rotor in my life.

[@matthias18]

Calyn45 me too

[@boost3d831]

Mikey I'd even settle for a 3 rotor

[@JohnmillerPowerlifting]

that car sounds awesome

[@GTORx7]

John Miller, thanks!

[@Grimace_Integ420]

is it possible to get a turbo 4 rotor motor built for my Miata? I'm hoping on doing a mega swap

[@tetangata]

Beautiful build mate! What/who is the music/band that plays throughout the video?

[@GTORx7]

Thank you! It is actually a sega robocop 3 remix from a very unknown artist.

[@gxlbiscuit]

Thank you for sharing this with us! i'll never have one of these because i'm a wuss about gas mileage when smashing the countryside but nice work:-)

[@GTORx7]

Thank you very much! Mileage is 10mpg which isn't all too bad considering.

[@gxlbiscuit]

Yeah i cant do that. I have a two rotor turbo and on group drives in the country im always the first one looking for 91 octane..

[@whowhatwuh]

What is it like on the street, regarding torque and powerband? Is it difficult/annoying constantly keeping the revs up to move? I know this car wasn't exactly built to have great drivability on the street, but how bad is it really, and do you think the enjoyment factor outweighs it?

[@GTORx7]

Avery Buda , it is surprisingly tame on the street. I've had a couple friends hop right in and drive without issue. The torque is very wide with a good chunk at 1500-2500. Even shifting at 3500 will leave street cars quick. the real fun starts at 5500 though, feels like a hit in the stomach after that.

[@GTORx7]

Requires no revs to accelerate strongly. Makes a good chunk of torque even at 2,000rpm. The enjoyment far outweighs the annoyance in my opinion. Anything above about 40mph and it will cruise smooth too. Below that a little left foot braking to keep the slightest load on it and its butter smooth even at 25mph. All in the technique, not for everyone but such a joy for sure.

[@Hulk12397]

I seriously envy you for driving that rocket ship!

[@Gkuljian]

I want to ask how much. But I turbocharged a Datsun 510 with propane back in the early 80's, and cartwheeled it. So I no longer get my kicks from cars. But man it is tempting.

[@moyits7709]

What an amazing car! And that sound, I could listen to it all day long! May I ask what transmission is in it?

[@drongojonkins8945]

Is that running a different firing order to the 26b? Or just less revvs? Don t get me wrong, sounds absolutely fantsastic, but it doesnt sound like the 26b even though the claimed HP is way higher than the LeMans car.

[@GTORx7]

drongo jonkins, 787b also was 700hp, and never went over 9,000 rpm. However the 787b had no mufflers, mine has two mufflers. I tried no mufflers once and no race track would approve! haha.

[@cdnbluesdriver]

Can you please do a flyby video with no exhaust.....pleeeeeeease??

[@GTORx7]

In spring, with new transmission I most likely will :)

[@cdnbluesdriver]

That'll be awesommmme!!

[@N0SK1LLS]

#4RotorProblems hahahaha kudos for awesomeness!

[@AaronShore]

Amazing car! How much to build one?

[@jhaller90]

in the streets what is the most recommended WHP for a 4 rotor?

[@GTORx7]

John henry Chua, that varies by personal preference, skill, and responsibility. I'd say 500 is pretty good

[@randallsemrau7845]

Some people can handle 1,000 hp and others cannot handle 100 hp.

[@buckydabomb]

yo i was in the wrx next to you at gridlife chicago this thing is mental homie!!!

[@GTORx7]

Owen Horst thanks man! I'm trying to make a video of its current form soon I hope.

[@joeferreri818]

I REALLY HOPE ROB DAHMS CAR SOUNDS LIKE THIS!!!!!!!!!!!!!!!!!

[@GTORx7]

An Amazing Panda, it will have the same spirit, but turbochargers do not have the induction noise and a softer dampened exhaust note. Just like turbo F1 cars now vs the non turbo F1 cars of the past.

[@joeferreri818]

ok

[@joeferreri818]

Thanks so much rob!

[@GTORx7]

Rob Dahm, exactly. Doubling the horsepower will push massive volume through the exhaust with jet turbine combo. Just two different animals. Please make sure yours does not sound like Mad Mike's! The world will thank you.

[@GTORx7]

Rob Dahm, dang sounded just as bad in person? Well I have no worries on your build, clearly you're a perfectionist with a good group behind you.

[@Earache.]

This is a really unique sound actually what are the exhaust mani specs?

[@GTORx7]

I custom built the exhaust from one end to the other. Uses pretty long primary tubes and joins in to a 4" twin muffler exhaust.

[@super00su]

I wonder if this would fit in a Rossion Q1

[@kidill4097]

Please show some content of your green fd from gridlife

[@nomadben]

That car is absolutely wicked. Totally raw race car. Great video. Just a tip - your voiceover only comes through on the right channel and it's uncomfortable to listen to with headphones.

[@GTORx7]

Ben. thanks, little teething issues. Next video will address things like that

[@troelsplougmannolsen9415]

It appears that I grew deaf on my left ear watching this video. Somewhere around 1:18.

[@GTORx7]

Troels Plougmann , yes one or two quick scenes were not stereo. Due to using a single high decibel mic. It was țrial and error. Sorry about that

[@mattlavery3883]

What would the estimated insurance be like on that car

[@GTORx7]

Not bad, I have it under Haggerty.

[@TessellationRow]

Awesome video Logan. It sounds like the microphones worked out well!

[@GTORx7]

George Hetzer, thanks George! They did pretty well, want to tweak a bit more for the next video.

[@henry9925]

monster!! 4 rotor

[@Commonginger]

do yall also build 3 rotor motors?

[@GTORx7]

Boosted Skyline yes we do!

[@ubseen]

so where is that video about the different configurations and where to get

[@GTORx7]

bob fuglsworth , haven't had a chance to make it, but I am working on it

[@JB-sv5pr]

Humble builds his own writes the story and turns the pages

[@MrStuwr250f]

Speechless. So much want.

[@MrGimmethreesteps]

This is a really cool car, but i wonder if the rx-8 would have been a better candidate since it supposedly handles a little better

[@graymatter78-23]

Is it possible to learn how to build these ? I have a lot more questions btw, I'm just trying to keep my comment short

[@Endisupertramp]

Hi Logan! Can you tell us the firing angles for your car, and do you know if he Scoot or PPRE engines use different firing angles for their 4 rotors. The build is amazing. :)

[@GTORx7]

Fellow Traveler , sure mine is 1,3,4,2. Same as the 787b or 792p. I believe ppre uses the same order.

[@Endisupertramp]

Thanks! The firing angles are equally split I presume, with every rotor firing at 90° angle away from the previous, or? Would that make the 13B fire every 180° and the 20B fire every 120°? Still trying to wrap my head around how the firing angles and timing are done in rotors, there is amazingly little about it online.

[@GTORx7]

Fellow Traveler​​ you have it exactly right. Easiest way to visualize is each rotor= 2 cylinders. 2 rotor =180 degree 4 cylinder, 3 rotor= 120 degree 6 cylinder. My 4 rotor actually is setup in the computer as a waste-spark V8.

[@Endisupertramp]

Thanks for clearing it up Logan. :) Best of luck with the amazing car you've built.

[@kenMizukie]

Just wondering but what type of eshaft did you use for this bad boy?

[@franticRX7]

Where did you get a dogbox? Can I put one in a 2 rotor?

[@mxmang]

Jason Justin he says in the video..... a hewland. www.hewland.com/

[@Jordan.M23]

challenge rob's rx7 to a race!

[@GTORx7]

Joe 69 , I plan to :)

[@vintagepolaris]

Joe 69 he will get decimated

[@everythingexe]

Defined Autoworks still gonna?

[@DeathCAPTsukinose]

Miata with 700 hp...dream ride.

[@cdnbluesdriver]

Oh man.....what a machine!! How did you connect the 4 rotor to the Hewland? Custom adaptor plate?

[@GTORx7]

Correct, custom adapter plate to a standard rx7 bellhousing. This winter going 6 speed sequential trans for even faster lap times (should be fun too!)

[@cdnbluesdriver]

Did Kennedy Engineering make the plate for you or did you design/mill it in house?

[@GTORx7]

Colin Hendry, I machined it myself.

[@cdnbluesdriver]

Super cool! Until I'm a machining god, I guess I have to get you to make me one when I buy a 4 rotor.

[@ezcoreg759]

How can I find out more about this?

[@dariocarrasco7936]

have you run any 1/4 miles with it? seems like an easy 9

[@alicebate6384]

Sounds so good N/A

[@boot-strapper]

How much does it cost to build something like this?

[@JanMichaelFranklin]

Are those roads here in central Ohio?

[@GTORx7]

Yes, hocking hills.

[@axlerose4744]

Love the ending, so 80s and 90s 😂😂😂😂

[@GTORx7]

I was hoping someone would catch the theme/vibe of the 80s!

[@axlerose4744]

Logan C No Waaaaaaaaayyyyyyyyy !!!You actually replied to me !!! You’ve made my day !!!! I absolutely love your RX7 and company, especially the fact that the RX7 is boiled down to mechanical basics 👌

[@GTORx7]

Axle Rose - Well you made my day too! I always like to hear positive feedback and many thanks for yours!

[@axlerose4744]

Logan C No worries ❤️

[@joeferreri818]

dat sound

[@djdeertz5450]

How much does a 4 rotor plus intake manifold, exhaust manifold, TB, Ect. before labor run?

[@schlaznger8049]

Wow massive cool!

[@caiallen3071]

Should do street car shootout that Rob Faretti is organising!

[@bluecollarjose]

you should get in touch with Rob Dahm. He's building that All wheel drive 4 rotor rx7 with a 98mm turbo!

[@Nomega92]

Hey Logan, what trans would you go with for the 26b? Minus the one you have?

[@GTORx7]

Nomega92, depends on the application really. A lower rpm turbo 4 rotor, I'd go with a T56 magnum. For high rpm n/a, you basically can only use race transmissions. Sequential or dogbox type rated for the power output.

[@Nomega92]

Logan C, thanks for the reply. Just getting an idea to how much everything would be. I hope in 2 years I'll be able to drop off the FD at your shop. If my business plans works out!

[@ryanburgos-jimenez7344]

How much would I need to make my stock fd into something like yours?

[@mattdicus2839]

How reliable is the motor you built?

[@GTORx7]

6 years of racing/ driving still going strong.

[@bonjourdy]

i can't hear your voice when you inside the car, maybe you should put a microphone like jeremy when he inside the zonda R

[@1320nico]

is it straight piped?

[@GTORx7]

Brandon Gesterkamp No, has two mufflers surprisingly. Straight pipe would make everyone deaf!

[@clayton8or]

deaf in the best way possible!

[@GTORx7]

Haha can't argue with that!

[@ThatKoukiZ31]

Its actually not that bad compared to other racecars. I was at a trackday this summer with Logan and I expected to clearly hear it over every other car, yet I didn't. A distinctive awesome note, yes, but not overly loud.

[@jlo13800]

Does it run the stock oil injection or do you premix?

[@GTORx7]

Bruce Miller I premix. The oem system won't work with two more rotors unfortunately

[@TheSuaveBOSS]

music to my ears

[@aadvb6664]

How did you get 700hp out of an N/A 4-Rotor? Is it a bridgeport? Also can you explain why MadMike's 4-Rotor sounds bad to you?

[@thertcw]

in the engine build vid, you will see its a P-Port... with ITBS :)

[@flexgado249]

I want to build a 4 rotor veilside.

[@tzero6]

love it bro.

[@joserotary9636]

Nice video, yes we would like to know how much for a car like this, probably 100 thousand dollars or more, with buying the car then engine then building it and installing it all, yeah like at least one hundred thousand or more, over night parts from Japan, lol.

[@datboisxe]

how often to you have t o rebuild this?

[@GTORx7]

Ahkeem Dudley , still unopened after 4 years. Compression has not changed. I'm sure it has another 4 or 5 race seasons easy.

[@datboisxe]

i always hear about having to rebuild rotary motors though ,think it would last as long if you daily the car as well?

[@GTORx7]

Easily. A stock naturally aspirated rotary goes 130-200k miles. This one going to such high rpm is much more stressed, but uses ceramic Apex Seals. They virtually never wear.

[@datboisxe]

so say a 3 rotary right, once the oil flow issues are taken care of, just rebuild with good seals and the motor should last a while as a daily, even with the occasional fun night or two

[@GTORx7]

Ahkeem Dudley for sure. I have plenty of customers who do just that.

[@MazzeiFormula]

Fucking great job. This isn't an easy task. I look up your work.

[@itsMC411]

Formula Seven hey formula seven, I just watched your JDM cruise video, and wondering why your 4 rotor sounds different.

[@TheHooligan94]

Is it really the first 4 rotor in the US?

[@GTORx7]

It was assembled and finished in 2012. I believe it was the first fully u.s. built 4- rotor. Hard to know for certain, which is why I say "one of".

[@TheHooligan94]

@@GTORx7 okay. Nice!

[@gav240z]

Ahhh yes but will it pass California Smog? :)

[@GTORx7]

gav240z , California is such a pain for that!

[@gav240z]

Logan C yeah thankfully I don't live in CA, but live in Australia which has similar strict regulations. I can't imagine getting 4 rotor through emissions / engineering testing here. Unless it was tuned to pass the test but I have to be honest I haven't even looked into what the requirement is. It would probably be easier to stick 1 in my S30Z as oppose to my FD3S because an older car has less emission regulation.

[@paddan426]

Seriously, id die happy from the smog of this sound... If they wanna control the smog, control the useless 200HP V8s that drink like it was open bar, and still never get anywhere. ;)

[@CMDRSweeper]

Of course! Just make sure you backfire enough to overload the smog detector. And drive away while they are scratching their heads wondering why it is spitting out errors :D

[@j0lel666]

gav240z we dont have emission tests for 2 stroke engines and wankel engines in finland and we still have very small rotary culture prob 20 rx7 running on street others are prob in barn or storaged somewhere