This actually makes more sense as to why the 20b only made it to the Cosmo. That's a significant increase in engine weight, that only would have made sense for a larger touring coupe.
@nelsonsilva9260
5 жыл бұрын
made it quick actually, can't wait to see a disguised brap brap machine in LS Fest...
@ramseybradford594
3 жыл бұрын
Bring those ricers
@jay_wright
5 жыл бұрын
Was I the only one thinking the motor was going to break the glass of the scale?
@jason87023
5 жыл бұрын
Jay Wright nope
@joshkearns734
5 жыл бұрын
No
@cB-ed8wd
4 жыл бұрын
Yesn't
@grandpuubatikieldermctoott8479
5 жыл бұрын
"And it's maxed out at... 6 inches.. So 6 1/2 inches." That made me chuckle at a moment when I was least expecting it.
@hassanp8340
5 жыл бұрын
6 months later: Rob: Im going to make flange between my Lambo gearbox and my 4 rotor ...
@Drunken_Hamster
5 жыл бұрын
Yyeeessss!!!!!
@flueky021
5 жыл бұрын
Vargas doing the 2 rotor on hoonigan has given me even more respect for the rotary game!
@bearle97
5 жыл бұрын
Im dyslexic so u doing the math in your head was mind blowing
@mrpoopybutthole6314
5 жыл бұрын
water bear I love this comment
@DarkLinkAD
5 жыл бұрын
His math was wrong.
@brandonhightower5666
5 жыл бұрын
Most common quote of Brappers…"It will IDLE......"
@jacobwebb8818
4 жыл бұрын
Mine won't 😔
@nathanlarson1851
4 жыл бұрын
"I know there is one person that is asking, where's the Lamborghini?, it's right there, but for that one person, 3 rotors is a 3 rotor engine" hahahahaha I died. I was not expecting that at all.
@capnthepeafarmer
5 жыл бұрын
If you're looking for very specific screws use Belmetric. They have a ton of JIS fasteners for automotive application. Researching JIS fasteners are its own rabbit hole.
@2jzfox...
5 жыл бұрын
Next video. Why the LS6 fell on my foot. Lol
@karlheinrichs3094
5 жыл бұрын
This killed me😂😂
@fastec5
5 жыл бұрын
More like how the ls6 hit my lambo
@BJK1715
5 жыл бұрын
MY GOD!!! Get yourself a toolcart. Bring your tools to the project.
@ProlificInvention
5 жыл бұрын
YESSS, came here to say the same thing!
@moeezahmedshahaab
5 жыл бұрын
If you ever have time, maybe you can make a video dispelling the myths that most people are running off of? Like how our late 90s understanding of rotaries are different than actuality! I think that’d be super cool! I feel like I will be watching your videos until I’m 60
@niko2415
5 жыл бұрын
Rob, how about Tesla model S with 3 rotor swap? Or why not 2 three rotors, one for each axle!
@ProlificInvention
5 жыл бұрын
Amazing project idea!
@JoeMadds0
5 жыл бұрын
Omg I busted up at that ending croc shot. God damn brilliant.
@ProlificInvention
5 жыл бұрын
*Rob Dahm* Engineer an intake air cooler that uses Dry Ice in a closed system to cool your intercooler. Excellent videos, longtime fan here.
@joedumars7311
5 жыл бұрын
Wouldn't work dry ice is mostly co2 so not much "air" there.
@ProlificInvention
5 жыл бұрын
@@joedumars7311 Not to be an asset, but no kidding man 😂...a closed system means using the cold to cool a copper "intercooler" on the intake utilizing dry ice, while venting the co2 into the atmosphere.
@FredAllenBurge
5 жыл бұрын
Wow +100lbs for the 3 rotor, surprising! 2 rotor can make plenty of power these days.
@DigBipper188
5 жыл бұрын
Dahm: Boost in, apex seals out Everyone else: Boost in, power out
@patricksteele4594
5 жыл бұрын
How much do you save with aftermarket lightweight rotors?
@zyzzbrie664
5 жыл бұрын
Two days in a row? Father Dahm you spoil me!
@FishFind3000
5 жыл бұрын
Zyzz Brie he needs da moneies...
@Autofixpals
5 жыл бұрын
So im old shcool and i remember when rotaries were cool but i also remember how unreliable they where. I am getting the impression from your comments that rotaries can now get decent gas mileage for the amount of power they produce? make it to 150k plus miles of daily drive? Why today would someone choose a rotary engine for their project vehicle over an LS? LS is cheap, powerful and fairly reliable. okay money aside is todays rotaary atleast as reliable as an LS or any other popular engine swap? Dont get me wrong i have always liked the Rotary engine and wanted to own one but was always to chicken to pull the trigger.
@alejandroroman226
5 жыл бұрын
Rob's expression. "Aw dude, this is an Rotary engine..." Freakin killed me. Love the *Rotary Guy*
@billybobjoe198
5 жыл бұрын
Sounds like a 20b is a lot like a 910 Turbo price and availability wise. Only the 910 will explode if you make over 300hp with it.
@shred1894
5 жыл бұрын
WRONG HOLE WRONG HOLE! you said to add our own commentary
@BadBrainsHR
5 жыл бұрын
I'm too stubborn to use power tools but it helps me remember where things go when I take my time .
@vader0ni
5 жыл бұрын
So I have a 350z shell I've been planning on putting an LS in, but there's a free non-running 13b in my town I might pick up. I also have a diesel turbo that's normally useless for gas engines due to oil pressure... am I crazy for considering putting this in the Nissan? I know very little of Dorito engines....
@dan.r9220
5 жыл бұрын
In this video Mr spaghetti tells us why 3 spicy meatballs is better than 2.
@Gentlemenhac
5 жыл бұрын
Rotary corvette sounds cool, but how bout a 26B Diablo ma man?
@jamescollins4178
5 жыл бұрын
Tonight on science with Dahm... :) loving the content sir, nothing sounds like a rotary, 20b is my dream motor for sure always will be they sound soooo good :)
@Megachad
5 жыл бұрын
I love the scale you are using as well! haha. something I would do for sure. My wife would be like,,,, Why does my scale have engine oil on it.... NO IDEA... NO IDEA...
@hammuffins2645
5 жыл бұрын
You love it because you have someone else build it for you.
@dedelabinouze5110
5 жыл бұрын
I've always wondered where people get these 20Bs ? Except the Cosmo which is a valuable classic and the 757/767 which are valuable racecars, Mazda never put this engine anywhere else (i think). Are they custom made with 13Bs ?
@dakotanewcombe7843
5 жыл бұрын
9 times outta 10 that's exactly what happens. Unless you get a half cut cosmo from overseas you've gotta get your 20b power through a highly skilled machinist.
@knucklestheechidna5718
2 ай бұрын
I like the fact that with a 3 rotor, one rotor is in each phase of combustion so in my head it seems perfectly balanced
@snorkyou
5 жыл бұрын
Love the outro
@oscarzt1652
5 жыл бұрын
2:29 ROB YOURE REALLY CLOSE TO THAT LAMBORGHINI ITS MAKING ME ANXIOUS
@Djseany
5 жыл бұрын
Keep up the awesome videos!
@oscarzt1652
5 жыл бұрын
16:42 WHAT ARE THOSEEEEE
@bensiegesmund4921
5 жыл бұрын
Jarod forgot to put his crocs in 4wd
@_SevenRavens_
5 жыл бұрын
Rob Dom’s garage is a OCD persons nightmare 😂
@TheMustang781
5 жыл бұрын
Dahm with another one!
@mkivdreams
5 жыл бұрын
I'm from the Wisconsin and am wondering where do you source your 20B's from? Which engine importer do you use?
@malijames12
5 жыл бұрын
Robert, will thou be hosting a meet-and-greet of sorts any time fairly soon?
@jonmac155
2 жыл бұрын
What's better than 2 wheel dollies? Two crawfish dinners with a side of Doritos
@jasepoag8930
5 жыл бұрын
I'm pretty engine agnostic, just trying to understand. How is the 20b more powerful than an LS6? I'm looking up specs, and I'm seeing between 250-300hp for the 20b, while the LS6 makes around 400 if I remember correctly.
@dan.r9220
5 жыл бұрын
He's accounting for the fact that he added a turbo to the weight. he can turn the turbo up and the rotary will easily make 1000+.
@jasepoag8930
5 жыл бұрын
@@dan.r9220 it'll hold that power with stock internals? I can't remember what the stock LS motors will hold, but it seems like it was 600 to 700 hp. Doesn't cost much to bullet proof them though.
@MrSlowestD16
5 жыл бұрын
@@jasepoag8930 Yeah I think it's all sort of a lie from rotorheads. He's not comparing a stock 20B. It won't hold 1000hp w/ no mods. If it did everybody would have one. It'll cost more money to get a 20B to 1000hp than it will to get an LS to 1000hp. Not quite sure how he justifies comparing a boosted 20B to an NA LS and then saying you can boost LS's, but then writing that off like some extremely rare thing, as if boosted 20B's are in every junkyard. But anyway, takeaway: "20B > LS"; "These are just objective facts, I'm not being a rotary fan boy here"
@DarkLinkAD
5 жыл бұрын
@@MrSlowestD16 Pretty sure if they are throwing aftermarket into the equation, N/A LS is over 1000hp... aftermarket block and headers will be lighter than a 20B and stock for stock the LS is more reliable, better fuel economy and fits more displacement in a smaller space. With that being said, I would still like to see more rotary stuff.
@danielnelson4881
5 жыл бұрын
He was just strictly saying for the weight of those setups a 20b with a turbo will make more power than an NA LS.. You could throw a ton of money at it and make as much as that 20b I'm sure no problem but as they sit the 20b will make more power easier. That's why he kinda said that's neither here nor there because he knows it'd be easier to throw a turbo on that LS and it'd smoke the 20b he was just kinda saying.. No real point. We all know what's up, the LS is more reliable and cheaper to make more power.
@ADN1996
5 жыл бұрын
1:34 ls6 swapped dollys
@msengineeringdavid3702
5 жыл бұрын
A 20b does *NOT* make “way more torque” vs an LS6 NA or Turbo
@timgrun5401
5 жыл бұрын
If it were true, everyone would be running them.
@beaches2mountains230
3 жыл бұрын
Damn straight. Ive had a rotary 13b and I loved that engine. But unless You have a bunch of money and can do it all yourself(minus the machine work, engine building) its 5 times the cost to build a rotary especially reliably. Idk what Rob says. Ask him how much he spent on on that engine? At the end of the day numbers don't lie. How many LS Based engine ares there? Thanks to E85/ turbo tech/apex seal tech and tuning rotarys are way more kickass nowadays. Id love to have one if I wasn't always thinking about best bang for buck!
@asjmpickle
5 жыл бұрын
counting exhaust ports doesn't apply to renesis they have 3 pipes for a two rotor.
@tscooter22
5 жыл бұрын
I think you should put the 3-rotor in the Corvette. /ducks and runs Seriously though, you are going to need a badass little 2-rotor if you plan to compete or beat the LS6's performance. How much power do you hope to make with the 2-rotor?
@MannyDelReal
5 жыл бұрын
It could never compete with a Ls block 😂
@AdJacMusic
5 жыл бұрын
why are you including the cast manifolds for the LS but not the down pipe for the 20b? also the ls6 had the clutch on it in your other video...
@motomanb2
5 жыл бұрын
why is the "extra" center section bigger than the other center section?
@dcgames8940
5 жыл бұрын
Is their a way that i Can maybe buy that ls6? Me and my father are looking for one to ls swap our jeep
@traviscoombes3578
5 жыл бұрын
The question I have, is can you make a rotary as reliable, or last as long as an LS?
@adamwainwright9658
2 жыл бұрын
Yes, it's possible. All depends on the way the engine is used and the maintenance you provide.. If you drive like a dickhead and don't look after your engine, it doesn't matter if it's a rotary, a LS or a Detroit diesel, it will fail...
@DailyFix21
2 жыл бұрын
@@adamwainwright9658 Well you kinda have to drive rotaries like a dickhead.
@henrylima6974
5 жыл бұрын
Anyone know what apex seals Rob Dahm uses?
@udaaz
5 жыл бұрын
There is a typo on the About page of your Dahm racing website
@mrawesomelemons
5 жыл бұрын
Mazdatrix listened. They have a really nice site now.
@CrazyLazyDave
5 жыл бұрын
🔥 Braden Carlson impersonation Rob 😂😂😂😂😂👍
@brendangallagher8292
5 жыл бұрын
What happened to the rx7 Jared/Jarret bought?
@nick_bag
5 жыл бұрын
you should build a cage to put the ls6 in, keep it locked up in the corner like a redheaded step child
@xaytana
5 жыл бұрын
I wish Mazda would bring back the rotary with modern parts. All aluminum with iron plate inserts, modern turbo, other modern parts for it. It's sad how expensive a modern rotary gets without having someone mass-manufacturing the components.
@SuperSilvi1990
5 жыл бұрын
Could you put the cost of the building the 3 rotor and getting it running on your videos. No one talks about that.
@kevinmpardo2520
5 жыл бұрын
My Dad Has A Fully Built C5 Corvette Pushing 1200 HP. IT RIPS. 🇺🇸🤟🏽🔥🇺🇸🤟🏽🔥
@lou_leem
5 жыл бұрын
does it have a rotary tho?
@RobDahm
5 жыл бұрын
It rests in peace? 😂 my rotary corvette will definitely RIP. Not sure in what way though
@justswippin2693
5 жыл бұрын
Rob: Vargas: heavy breathing
@Lawsy2
5 жыл бұрын
"Hey, I love your crocks, bro!" - Said by nobody, ever...
@edwinclairmonte4984
4 жыл бұрын
😂 keep your eye on him Jarrett
@vincentwitjes5106
5 жыл бұрын
on rotorys like these that get rebuild you gotta wrench everyday(credit tavarish)
@kamillegierski3663
5 жыл бұрын
whens a 4 rotor rx7 vid ?
@XGamesJ6
5 жыл бұрын
9:21 The 2 rotor in the rx8 has 3 exhaust ports...
@youngrotor4620
5 жыл бұрын
How many cars are at the shop?
@kamenriderblade2099
5 жыл бұрын
Honestly, the 3-Rotor should go in the Corvette Body & the 2-Rotor should go back in the RX-7. I remember how much of a problem you had with engine bay clearances on the RX-7 with the 3-Rotor. Shoving a 3-Rotor in a tight bay isn't good for (thermals, maintenance, or modding)! You want to have as much room as possible for all the crazy stuff you want to do, that means shoving the right Rotary in a spacious Engine Bay so you can do work and improvements.
@msengineeringdavid3702
5 жыл бұрын
Kamen Rider Blade shut up.
@kamenriderblade2099
5 жыл бұрын
@@msengineeringdavid3702 You first!
@randomyoutubeaccount6906
5 жыл бұрын
That rotory is heavier than my engine but still light. Heavier than a BMW N54 I believe as well. Both can make 900HP semi reliably with minimal mods.
@destienyman
5 жыл бұрын
Bae got me that shirt says rob dahm for everyone else asking xD
@dutchperformance5182
5 жыл бұрын
I would also like to swap a 20b in my rx7 someday !
@soraaoixxthebluesky
5 жыл бұрын
Peripheral port setup will make it shorter.
@HarrodsGarage
5 жыл бұрын
Haha dock the red rocket
@shoominati23
5 жыл бұрын
I could have bought a 13G spare 3 rotor race engine from racing beats land speed record rx7 for 10k , but shipping costs were killer
@bigolbootycheeks9138
5 жыл бұрын
When was this? Like close to a decade ago? I remember that thing, they put it up on rx7club I think. Quite the motor for the price.
@shoominati23
5 жыл бұрын
longer, back in the late 90s .. saw it advertised in the back of fast fours & rotaries . this was before everyone was shipping stuff everywhere and you can get deals and it cost a mint to have large items sent from overseas.
@bigolbootycheeks9138
5 жыл бұрын
@@shoominati23 damn, that's cool. I know there was an exact replica of a 13g, down to the sliding throttle bodies even, that was up for sale about 10 or so years ago on the club. I think it was about $10-12k
@DirtyDaron
5 жыл бұрын
So your saying a completely custom fully built rotary engine is better then a bone stock LS6. Good to know.
@bigolbootycheeks9138
5 жыл бұрын
Yes, and at the same time, a bone stock rotary is better than a custom fully built LS.
@DirtyDaron
5 жыл бұрын
@@bigolbootycheeks9138 lol, I do agree with you kinda. Its funny how "fully built" lead to breakdowns more often. I would still run a cam only LS over a rotary just because it easy, powerful, cheap and still more reliable.
@DarkLinkAD
5 жыл бұрын
@@bigolbootycheeks9138 Nah..
@megunded
5 жыл бұрын
sorry i missed it , why do you love the 20 b ? ....or you just said nothing about that
@Tacospaceman
3 жыл бұрын
16:42 *WHAT ARE THOOOOOOOOSE*
@Drunken_Hamster
5 жыл бұрын
3 rotor N/A in a FWD car, what're your thoughts?
@-wd40-66
5 жыл бұрын
4 rotor spotted a @11:29 bottom left on the floor.
@cocopublicnews6766
4 жыл бұрын
Do rotaries have egr valves?
@emperor002002
5 жыл бұрын
Should've just gotten a Renesis engine. Get with the times man. 😤
@firedude1Productions
3 жыл бұрын
Lol nah
@bobotte3084
5 жыл бұрын
I like that: "It's literally a higher performance motor"
@zerodamonsta942
5 жыл бұрын
Get sawdust to clean up the oil and coolant.
@funkalicious2002
5 жыл бұрын
6 rotor swap the Diablo!
@javajack9197
5 жыл бұрын
So what's going in the Vette? 13 or 20b? Thanks for the video.
@sins8156
5 жыл бұрын
Java Jack 20b
@derpinskyeh3967
5 жыл бұрын
I love your shirt Rob but idk what to call it
@panagiotismastoras
5 жыл бұрын
Just imagine their faces in the fest..Hearing a corvette doing braps.Oh boy.
@jcota2003
5 жыл бұрын
Serious question for Rob or comments. Does anyone have or know any good e-shaft CAD models? Especially, for the 3 and 4 rotors? I have access to a 3d printer and want to actually see the prints side by side. Or does anyone know what the rotation offset per rotor added is? Like what would a theoretical 5 or 6 rotor e-shaft look like?
@RDSAlphard
5 жыл бұрын
If 3 rotor is so good, why not put 3 rotor in Corvette?
@SeekAndDestroy5
5 жыл бұрын
Wants to show that a 2 rotor can compete first. Then probably gonna be swapping the 3 rotor in
@andresperez3602
4 жыл бұрын
Where can I buy a 3rot engine?????
@카파수
5 жыл бұрын
Someone please teach him that sequence is important when unscrewing some parts, drives me nuts~
@olafeg6465
5 жыл бұрын
CROCK SHOT!! 😂
@waybous
5 жыл бұрын
Cleetus McFarland might want the LS6.
@dakotanewcombe7843
5 жыл бұрын
He seems to be going through hell with junkyard engines. He could definitely use it.
@waybous
5 жыл бұрын
@@dakotanewcombe7843 Hell yeah he does. I know its a far ship but I think it would be worth it.
@petrolmonkey1973
4 жыл бұрын
8 minutes of how to remove 20b exhaust manifold, quality
@InitialEngineers
5 жыл бұрын
3 rotor is amazing . If only it ran for more than a year lol
@fransisrld
5 жыл бұрын
I actually laughed in that video
@englanddude127
4 жыл бұрын
Rip jerad
@youngsjoshua
5 жыл бұрын
If you could just send that ls to me that would be great.
@dalecole7339
5 жыл бұрын
You're getting rid of an LS, that solves all your problems... :D
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