I'm tired of Rotary shops ripping people off! Testing the 2 Rotor 13B "SECRETS" myself.

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Rob Dahm

پیش 4 ماه

Rotaries are not cheap toys. But nothing angers me more than when a viewer messages me that a shop wants to charge a foolish amount of money for unnecessary mods.
Huge thanks to Valvoline for partnering to build the ultimate rotary. Their involvement allows me to push components past their failure point and share the results with you. #13b #rotary #teamvalvoline
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Paul Scarpa
Paul Scarpa پیش 18 روز
I always wanted 2 ask how come you spent 50 grand on the 4 rotor and had 2 pull it apart a few times
Michelle E
Michelle E پیش 22 روز
Quality control comes in all shapes and sizes
Soravia پیش 24 روز
Not balancing rotor assembly may work on stock RX-7 with their low redline, but RX-8 goes up to 9k stock (actually higher) and can easily hit 10k if not careful. You have to balance and side clearance, and even combustion surface clearance at higher RPM so they don't slam into the side and rotor housing.
A T پیش 25 روز
And I though piston engines were difficult but this is at a whole new level
Xan Tosh
Xan Tosh پیش 25 روز
love your work man! rotaries while on the outside look simple (no cams, no valves no pistons), this shows the complexity that is on the inside! (making sure the rotar seals are inspec, compared to just buying a set of rings to fit a specific piston for piston engines!)
The RebTek Channel
The RebTek Channel پیش 27 روز
It's lbs ft of torque not ft lbs!
motorsports_lyf پیش ماه
When the next episode of this
Chamary stigers
Chamary stigers پیش ماه
Rotary engine VS piston engine who win
Senor Spaghette
Senor Spaghette پیش ماه
"Hi, im Rob Dahm, and im about to show you how to build your own engines using tools your uncle has laying around. Mechanics hate me!"
Bill پیش ماه
Micrometer/ C Clamp , Multitool ?
Chris Yanez
Chris Yanez پیش ماه
how in the hell did i get unsubscribed .. damn you you tube !! .. oh well at least i have some good content to catch up on !!
Seldoon Nemar
Seldoon Nemar پیش ماه
9:35 that's not how that works. a changeover from C to D means a new mold. the ones at the end of C would be heavy as the die wears out and more material fills in. late C would be heavy compared to early D...unless there were updates and revisions when the die was remade (I know nothing about these engines, just... that's how castings work.)
Seldoon Nemar
Seldoon Nemar پیش ماه
when was the last time that micrometer was calibrated and why did you store it in a lake between then and now
When measuring with a micrometer you should measure to the lightest touch you on the other hand cranked it to where it acted like a c-clamp.....😂😄
Mcq Cjc
Mcq Cjc پیش ماه
Did u calibrate micrometer? Its crucial to have it done from time to time Also faces of contact points of micrometer need 2 b perfect
TheCarribeanCowboy _
TheCarribeanCowboy _ پیش ماه
Daddy Dahm is probably the kindest rotary man in the industry
Guido Samson
Guido Samson پیش ماه
Check guyana circuit racing
Guido Samson
Guido Samson پیش ماه
The guys in Guyana circuit race rotaries against piston engines
Noah Paulette
Noah Paulette پیش 2 ماه
15:24 those are so useful and I never knew what they're called it's a traveler Hook.
Steele پیش 2 ماه
I’m a diesel piston guy and in a way things kind of cross over as far as sealing combustion within the area it needs to stay In . Shouldn’t you clearance the side seals as well so you account for the expansion from heat and boost pressure ? My logic tells me the seal will expand in length and then bow out a little bit and press into the iron and wear it out
GbbJunkie پیش 2 ماه
If the apex seals aren’t “crowned” (taller in the middle) they aren’t as good as oem.
RavenSL65 پیش 2 ماه
Why do Americans say MOZDA its MAZDA !!!! Other than that love your work
Bo Kirkpatrick
Bo Kirkpatrick پیش 2 ماه
Pls pls pls someone teach Rob how to properly use a micrometer
I. Jackanov
I. Jackanov پیش 2 ماه
i've never built a rotary engine before but i see that he tells us he misinstalled a turbo setup to not drain the oil from the turbo correctly and is calling that a limitation on the stock rotary engine. ghey af. pinging will kill basically anything stock or not.
Drew پیش 2 ماه
where does he buy all his parts like the irons and rotars?? if anybody has a link let me know lol. thanks.
kayzrx8 پیش 2 ماه
The way he used the micrometer killed me a little..... Oh Jesus Christ. Other than that great video.
Dylan Lewis
Dylan Lewis پیش 2 ماه
If I ever get a massive amount of disposable income and I'm still single, I think it's my destiny to have a rotary-powered vehicle of some kind. Preferably an RX7. There's something very special about those cars and rotary engines in general.
Meeko Pineda
Meeko Pineda پیش 2 ماه
whats a good company to buy new rotors and housings?
Malicioso84 پیش 2 ماه
Every time I see a Rotary engine assembly video I wonder how the hell do the seals and springs stay in place? They look so fiddly and fragile!!!
Soljah61 پیش 2 ماه
Pause button..4mins in this guys walked the walk not just read the book..push play
Victor Rodriguez
Victor Rodriguez پیش 2 ماه
Rob Nonya
Rob Nonya پیش 2 ماه
You will find better use of die electric grease on viton seals will not swell.
Greg Waite
Greg Waite پیش 2 ماه
Thanks Abe!
ScottJ175 پیش 2 ماه
Hey, Rob. Subscribing because Casey said good things about you in his most recent vid. I'm a brand new rotorhead. I've had this unicorn on my radar for about 2 years and finally pulled the trigger (check out that ODO! irpost.info/face/fy-lm-h-y/lJm2tKqxs5nei2o.html). I've been watching various rotary vids over that time and yours is the first I've seen showing how to do corner, side and oil seals. I'm not into doing crazy big power builds. I tend to be more or a preservationist but I might maybe someday Lord willing get another project rotary to build and restore.
Kostart Photography
Kostart Photography پیش 2 ماه
Rob, there is no difference between a 20W50 and a 75w95, it's very much the exact same thing grade wise.
wayne seidel
wayne seidel پیش 2 ماه
I think a full build vid/tutorial would be great.
Alex G
Alex G پیش 2 ماه
All those studies i remember well were done by Rafael,from Rafaelito racing from Caguas Puerto Rico back in the early nineties,when his 13bs keep on twisting and breaking the rear plate right on the upper dowel pin,were he found out he needed get extra dowels pins to stop the problem,may be back then you weren't even born!
dtvtechrp پیش 2 ماه
You're assuming everyone can read a micrometer 🤣🤣🤣🤣🤣🤣
Frank Froese
Frank Froese پیش 2 ماه
Bling B
Bling B پیش 3 ماه
Is no one bothered by the sound of him sanding. Omg I'll have to finish this video after my body stops tingling.
james whiteman
james whiteman پیش 3 ماه
Sponsor me a race car ?. For Australia.
Cj Moveen
Cj Moveen پیش 3 ماه
Rob when u going to post the Second part
12a13b پیش 3 ماه
???? bro you have been doing this a long time. you cant end a vid like this.
thumpin1 پیش 3 ماه
Rob has watched engine builders enough and know thinks he can build a reliable engine himself... lmao... yeah ok...!!!
thumpin1 پیش 3 ماه
And you haven't lapped the plates... LMFAO, Rob's building a handgrenade...! Did you check/clean all of those grooves in the rotors before installing the seals..? NOPE..! This is going to be comedy gold...! Can't wait, watching with anticipation... 🤣🤣🤣
Ross Ritchey
Ross Ritchey پیش 3 ماه
subaru shops are the king of rip offs
Mike Hartman
Mike Hartman پیش 3 ماه
Yeah my 85 rx7 has been parked more than 10 years because mazdatrix gave me an estimate of 6500 to rebuild the engine to stock specs, so 6500 for 100hp didn't set well with me personally, eventually plan on running something powerful don't really care what so long as it's fast.
Alistair B
Alistair B پیش 3 ماه
Watching him not clean the side seals after sanding them and putting that dust in the rotor... probably not a big deal and I'm just ocd
Edward Mitchell
Edward Mitchell پیش 3 ماه
Couldn't help but notice you are using the micrometer incorrectly as you tighten it by the tip only as it has some give when the correct pressure is reached. irpost.info/face/fy-lm-h-y/lmLJzsDQyKSepGo.html You might have damaged it to where it needs to be re-calibrated already. Now we don't expect you to know everything as you are not a mechanic, not a machinist, and a whole lot of other nots, but we do expect you to respect our different trades and learn them. Your very smart and capable thus most of us can see this shouldn't be a challenged for you. Your like a real life "Pretender" that is capable of learning many different jobs all in one person. I'd like to get that damaged rotor and take some detailed measurements as I think it is trying to tell us something about how it actually wants to be turned.
Cody Edwards
Cody Edwards پیش 3 ماه
Rob, I've followed you for a long time and today I am subscribing to your channel. This is the type of video I love seeing from rotary enthusiasts. Thanks for everthing you do and share!
inixratedini پیش 3 ماه
Hey rob how come you didn’t go with the rx8 rotors for a higher compression?
Damien Clark
Damien Clark پیش 3 ماه
Mazda actually calls for superglue on the old 3 piece apex seals to help assembly.
Imran Syafi
Imran Syafi پیش 3 ماه
That dorito is a lot thicker than i thought for whatever reason.
changtastic پیش 3 ماه
I’m a fan of the camera man, he just randomly curses, where you rarely do! He’s a good side kick for ya!!
Heavens to Murgatroyd
Heavens to Murgatroyd پیش 3 ماه
The first thing you learn in Engineering or machining is how to measure and use accurate instruments. I'm surprised that anything you work on actually runs at all. But keep teaching professor......😂
Jim Dillas
Jim Dillas پیش 3 ماه
you are a Rotary Genius ......Thanks for the great work and stories
mitchdyson پیش 3 ماه
Is that side seal clearance tool something people can purchase?
Spartacus پیش 3 ماه
my favorite Dahm vid
RallyGuden پیش 3 ماه
can we get a similar series abot the renisins engine for us young and poor rx8 owners 😋
Jason Haley
Jason Haley پیش 3 ماه
24:50...HA..."Almost exactly!!" My mother is creating a "tornado-like" vortex in the urn her ashes are in. Used to try and pawn off: "...there's either almost OR exactly; perfect or not" on me. I'd reply with a darts/bullseye comparo or the kilogram standard; which WAS exactly 1 kilogram. However, after a couple hundred years it's like .0000001% off...so Mom, Rob Dahm and I are here to tell ya it's ALMOST F-N EXACTLY 1 kilogram!!
Rob Shapiro
Rob Shapiro پیش 3 ماه
leave currently not in production out of production. if made on a lathe. leave rotaries alone. defunct and ancient a motor out of time.
s14sean پیش 3 ماه
I want rotary tuning and engine rebuilding information to be open and available to everyone.
Anthony G
Anthony G پیش 3 ماه
can you still purchase parts for the 13b from mazda? I was just wondering if there are new 13b crate motors or something like that
FINdude پیش 3 ماه
This channel is the holy bible of young guys dreaming of an rx7
Oscar Thorpe
Oscar Thorpe پیش 3 ماه
4:58 brand new from where? does Mazda still make them?
Brad Hughes
Brad Hughes پیش 3 ماه
As a precision machinists, watching you use mics kills me. idk if there is a way to direct message on IRpost but If there is, hit me up and we can talk and walk though getting consistent precision measurements. Also send those starretts off and get them rebuild and get the rust off. Those are decent quality and should be treated as such.
Phil Gudet
Phil Gudet پیش 3 ماه
Message him on IG
mick leeds
mick leeds پیش 3 ماه
how much were the new rotor's and housing's rob..?
mick leeds
mick leeds پیش 3 ماه
who needs a 26B when you get 500-600 hp from a stock 13B....
The Codex
The Codex پیش 3 ماه
How much would a AWD V8 powered Fd3s would cost? it’s been years since I’ve been playing this build
Maker Noob
Maker Noob پیش 3 ماه
Awesome video.
voodoo پیش 3 ماه
Its crazy how much you look like the dude from psych
Richard Harris
Richard Harris پیش 3 ماه
You never drive your cars so how can they attest to any thing your saying
Richard Harris
Richard Harris پیش 3 ماه
Watch Vargas last video tells you all that you're saying is bullshit so one of you is lying guess which one I'm going to pick
Richard Harris
Richard Harris پیش 3 ماه
2 words-Vargas brothers
MIke McC
MIke McC پیش 3 ماه
Why is a Counter weight needed?
ijgd jvjd
ijgd jvjd پیش 3 ماه
Here's a thought, don't waste money on a garbage rotary engine in the first place. They are trash. Way over priced for garbage proformance. All rotary people sound like a battered spouse making excuses for the beater. They're trash move on.
Rishi پیش 3 ماه
Thanks Rob
Richie T
Richie T پیش 3 ماه
Ummmmm… #Simon from #Promaz anyone??
Dakota Farley
Dakota Farley پیش 3 ماه
Food for thought when fitting the side seals i would wipe them off with a lent free cloth each time after filing before test fitting them. As few partical not doing this would leave i know your like me and after seeing a way to any gain its worth doing.
Overkill پیش 3 ماه
Rob gives tips on tips
Shibbi پیش 3 ماه
how´s the cat ?
Alex Perez
Alex Perez پیش 3 ماه
This isn't flying woody! "This is Falling with style" - Buzz Lightyear
J V پیش 3 ماه
Who's gonna regulate and show everything Rob does wrong? These IRpost guys always selling BS LMAO, Once I see some real world race results (I'll jump on board) You kids need to NOT take advise from someone who's in the learning phase himself. Racetrack results or Nothing Rob!
Chris Conley
Chris Conley پیش 3 ماه
While I know youre a busy guy but I'm more than happy to sit down and have a teams call or zoom call to go over mic operation. The anvil dig in gave me anxiety.
Jordan Wilson
Jordan Wilson پیش 3 ماه
Lol peep s no need to keep putting your doing it rong with the micro look at the comment s he knows and bin told 50 + times and you can see other people has sed lol hahah great vid bro you will be come a Rota Jedi master the force is strong with this man hahah
Jordan Wilson
Jordan Wilson پیش 3 ماه
I would love to know how much power a 1 Rota engine can make and fit it to a bike or old mini or micro car
LamaVi B
LamaVi B پیش 3 ماه
I just love those subtle endings with no bs afterwards 👍😁 keep it up
Soravia پیش 3 ماه
You turned the label around but we can see they are Goopy brand
PD Els
PD Els پیش 3 ماه
Does he mention in any previous video where to order the new rotors and etcetera from??
ExpWars پیش 3 ماه
Imagine a rotary diesel
iPlay4K aka iPlay8K - 4K, 8K,16K - UHDking
iPlay4K aka iPlay8K - 4K, 8K,16K - UHDking پیش 3 ماه
Orange is the best color on Corvettes... Rob, we understand that you can build Corvette with RX-7 motor... What about save the USA??? How? Build a strong IT army and produced some beautiful intellectual ideas into product projects and employ a lot of people that struggle to get a job in corporate software development but have a nice intellectual portfolio - put them together and develop Intellectual Products... Rob, we can`t follow behind other countries - wake up man, we must build IT Army, with IT Army Academy. The goal is for our army is to get first on Mars while everyone in Army is blessed... everyone should learn a programming language because it makes you think differently... or USA will be behind- hire me as your CTO (I come with intellectual ideas projects as software written by me) and lets build IT Army and IT Army Academy. Goal for Army to develop beautiful intellectual ideas into software(s) and employ an intellectually capable people that struggling to be employed by Corps but bright people with intellectual portfolio products as software(s), while Academy to supply the people that fanatic about becoming 21-century magicians aka software developers v2. We need this in the USA - a thousand great software developers from our IT Army Academy that will be welcome on IT Army projects all the time. Let's do this! Mechanics are an easy part of Physics, come on let go and think big. A people software development company that will go to Mars eventually... Rob, you want to be famous for centuries and not Rob RX7 engine that in 2032 nobody will even talk about it like VHS tapes or whatever... Rob, you want to be on another level, so our IT Army will earn enough money to open IT Army Academy that will teach software development on projects... We will teach them to be magicians of 21 century and prepare them for work for IT Army. It is our time or about our time to make things great! Do you want to be know as Rob RX7 Coverette or Rob aka President of US IT Army and IT Academy that employed thousands of people and make the way brighter for dozen and hundred thousands of people...
Dan Heeks
Dan Heeks پیش 3 ماه
www.ebay.co.uk/itm/1994-Mazda-RX7-Single-Turbo-400-500Bhp-FRESH-ENGINE-REBUILD-HKS-TURBO-KIT/283947057631?hash=item421c9041df:g:Yi4AAOSwUwVeu~nZ 😂😂😂😂😂😂
Cowboy پیش 3 ماه
I have no idea what you're saying half the time but imma stick around till you bring me up to speed
Ian Sullivan
Ian Sullivan پیش 3 ماه
in all honesty this is a great video, can you also do one for the FC engine please?
Neil Brown
Neil Brown پیش 3 ماه
Talked about building a rotary engine in about getting the best value for your money you definitely won't get any value for your money building a rotary
Bruce Carey
Bruce Carey پیش 3 ماه
I really appreciate what you're doing here. Sharing what we've learned is one of the most important things we can do.
steveobarnes پیش 3 ماه
I hope the Vargas bros do a response to this video.
Christian Burns
Christian Burns پیش 3 ماه
I feel ya mate when I get new parts my knees go weak as well. And when you said that I nearly spat out my drink cause it’s relatable 🤣😂
Rex Mundi
Rex Mundi پیش 3 ماه
Can you please get a signwriter to wrap over the corvette stripes in matte black vinyl🙏
porkbuttrocks پیش 3 ماه
Internet expertise knows no limits. Ricer technology and attitude meets unlimited funding. What could possibly go wrong?
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