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.
The engine hoist jack handle was getting a bit close there for a second. That caught my attention, but when he put it all of he way in he had plenty of room, but yeah, he is pretty close to that beauty.
You are one of the reasons why I wanted a rotary Rob! I just bought a blown RX8 and I am rebuilding it myself. The dream is to own a 20B FD but prices are too crazy.. I’ll start with my RX8 and work my way up to that dream💪🏽💪🏽. But for now I’m loving the RX8 so bring on more RX8 videos!!
"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.
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.
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
@@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.
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 ?
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.
Wise Guy you can get a 4 rotor by taking two 13b’s and putting them together. The only hard part is getting an eccentric shaft since Mazda didn’t make one. But some rotary shops custom make them. I’m sure if Rob made a video he would go into more detail.
It's almost like he made almost a whole video series about getting the 4 rotor, and then it getting lost, and then him having to buy the parts a second time from the guy who bought them at a FedEx auction.
@@wiseguy__ of course man!! Always here for the help. Rob has a lot of good rotary content from back in the day. Then he took a long break and is now back on more consistent video making.
love the build. Now id like to see a cost comparison to make 7-800hp with the 3 rotor vs the LS6.. love you rob but you know what the outcome of that would be... lol
None of this is about bhp/cost ratio, it's about building something ridiculous, something you WANT to build, something you're passionate about. If you're life is an LS, that's fine, go do you, the LS motors are fantastic...if you prefer a 4cyl turbo or something, that's also fine, go enjoy There's no use in using cost as a comparison when it's not a factor in the first place
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 :)
1: please get a power ratchet. 2: could you put all of your motors on engine stands. Then you can roll them around like a rodeo. 3: one of these days you need to do something on the fancy billet rotaries.
So, let me get this right, a giant turbo 20b will make more power than a stock ls6? Um, duh? A modified N/A 3 rotor is only going to make 300whp.. a stock ls6 is going to make more... Turbo'd 3 rotor, vs turbo ls6, they're both going to make tons of power. You also weighed the cast iron stock manifolds for the ls6, but not the manifold for the 20b... I'm not hating on the 3 rotor, in fact, I would love to put one in my ae86 like those crazy Japanese guys did years ago... but this is a apples to oranges comparison masquerading as a "fair" comparison.
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....
I'm surprised to hear the 13B from Rob's car only 350 lbs include everything, I remember someone weight a 13B-REW (twin turbo one, with all the stock accessories on it) was around 510 lbs, where LS engine were merely 400 lbs.
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.
I'm not trying to criticize and I'm certainly not a fanboy of pushrod LS engines, but after comparing them and stating that they were comparable in weight with the 3 rotor being just a bit lighter, you stated that the 20B could kick the LS6's ass. But in stock form a little googling led me to find that the the 20B produced 300 HP with 10 lbs of boost but the LS6 produces a minimum of 385 HP with no forced induction. I think it's also well known that rotary engines consume a lot of fuel, so I don't think that is kicking ass. Especially since the LS6 could still be force fed to increase it's numbers just like the rotary could. To make a fair comparison I think both engines would have to be in a similar state. It would be more accurate to say that PER LITER of displacement, the rotary kicks ass. That seems fair. Am I missing something or are you indeed being a fanboy? Again, nothing against the rotary. I love the small size and light weight, but in this case that doesn't seem to be the advantage.
It can make more power if you can rev it up to 11k rpm it without bowing up. Though it'd need premium fuel n ither stuff Personally i think the best ice is 2 stroke opposed piston engines tho. Double the power strokes and already self balanced engine.
Mazda Miata but would it make similar power to the ls6 but revving higher and would it be nearly as reliable? As OP said, not fanboying LS’s. Just curious
The n/a LS in the dry around 400lbs... The 3rotor with turbo around 400lbs... Taking that package, the 3r wins - this is what he did say; also he did mention, that you can do forced induction on the LS but that will add weight as you need additional oil cooler, turbo(s), piping aso.... You can then build a twin-turbo 4-rotor - that sounds like a F1 car and goes like the Belzebub who burned his balls on the stove.
Hey rob. I’m an irresponsible teenager with disposable income and a dream to own an FD rx7. In this market what do you think is the best / most cost effective way to go about getting one?
I love your Mazdatrix comment, and your right! It is an old, dark, wooden building full of no-nonsense, been there-done-that, curmudgeons…….but damn it, they know their stuff and the products and experience are top notch! My "E" build S5 13BT is now about 17 years old and still running strong, not quite daily driven on about 15psi of boost.
@@fastec5 Not true. People reliably have installed turbo's with proper piping and intercoolers to achieve 300 BHP on a renesis engine at 12 psi of boost. It's not common, but definitely can be done and not completely difficult.
@@sofakingdom3076 we are talking from the factory here. You are talking to an RX7 owner who is piecing a Reni together in hybrid fashion to slap into my FB lol, I know. But the Renisis is the engine that destroyed the rotary's name.
@@sofakingdom3076 except for the inherent design flaws Mazda put in it. The exhaust port design is terrible and allows carbon to build up. When that carbon buildup breaks off bye bye seals. And the oiling system is terrible. Mazda fixed the Reni's issues when the S2 came out but by then it was too late. Also, emissions affected the 12a and those things were bulletproof.
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 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.
@@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"
@@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.
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.
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...
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...
Check out Defined Autoworks. They got a N/A 3 rotor peripheral port making 475 to the wheel. Streetable power, half bridge with Rx8 10:1 rotors, milled for rx7 seals. Probably 400 wheel. As for putting it in the Rx8, you got $50k?
Considering that the 13b/20b engines are totally different to a Renesis, not to mention the engine harness aso. Do you want to have the electrics in the car working as from the factory? - if yes, you might in the $40k to $50k region. Here in the UK, RX8 cost pretty much nothing, the other day I found one for £500 with the good old hot/cold issue - and 13b raceport rotary engines you can get from 1.5k upwards - but when I checked the work what the built involves and considering I have a 40hrs job and also like my other hobbies... I stuck to my BMWs - they fast too.
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!
need to build the 3 rotor as a billet motor next build, will lighten it up and allow for easier rebuild as if you score a iron the faces are replaceable.
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?
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?
made it quick actually, can't wait to see a disguised brap brap machine in LS Fest...
Bring those ricers
3 rotor: 3 Doritos in the bag with a whole lot of air.
2 rotor: 2 Doritos in the bag with a whole lot of air.
Difference between 2 and 3 rotor. lol
Giant glorious doritos
Noooo, their pissed of Doritos in a bag.
@@waybous the big spinny boi makes the doritos angry
Hey Rob you should buy Mazda and start making rotaries again.
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.
You legit made me buy an rx8 and all i can say is thankyou dad x
Son. Make me proud. Blow the engine
@@RobDahm hahahahaaa, It was replaced 7k ago so it shouldn't be long now hun
@@twennon3873 only a few more miles
@@twennon3873 Premix the gas with oil. Look up premixing for rotarys. It helps keep it alive a lot longer under abuse.
UnStupified yeah it’ll last maybe 500 more miles which is an eternity for rotaries
Was I the only one thinking the motor was going to break the glass of the scale?
Jay Wright nope
No
Yesn't
Why do you work so close to the Diablo? it gives me anxiety
The engine hoist jack handle was getting a bit close there for a second. That caught my attention, but when he put it all of he way in he had plenty of room, but yeah, he is pretty close to that beauty.
Who really cares about that lambo crap.. Rotary!!
@@OldSlow you're embarrassing other rotary fans man
Same
You are one of the reasons why I wanted a rotary Rob! I just bought a blown RX8 and I am rebuilding it myself. The dream is to own a 20B FD but prices are too crazy.. I’ll start with my RX8 and work my way up to that dream💪🏽💪🏽. But for now I’m loving the RX8 so bring on more RX8 videos!!
6 months later:
Rob: Im going to make flange between my Lambo gearbox and my 4 rotor ...
Yyeeessss!!!!!
"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.
"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.
Vargas doing the 2 rotor on hoonigan has given me even more respect for the rotary game!
Two days in a row? Father Dahm you spoil me!
Zyzz Brie he needs da moneies...
Im dyslexic so u doing the math in your head was mind blowing
water bear I love this comment
His math was wrong.
Next video. Why the LS6 fell on my foot. Lol
This killed me😂😂
More like how the ls6 hit my lambo
Most common quote of Brappers…"It will IDLE......"
Mine won't 😔
Thank you for not LS swapping your Rx-7! I'm not a big fan of the "LS swap everything!" craze.
Dahm: Boost in, apex seals out
Everyone else: Boost in, power out
Instead of going through a lengthly and costly conversion, Ive been thinking about just getting a 3 rotor Cosmo now that they are 25+ years old.
$$$$$$$
@@rotorthermotech1310 There's a few on my local Craigslist for $19k with clean title.
TurboDieselDan , that’s reasonable, rare as hens teeth here in Australia
Very rare cars those cosmo's
More Doritos, more flavor, DUH. That’s why 20b is better
Rob's expression. "Aw dude, this is an Rotary engine..." Freakin killed me. Love the *Rotary Guy*
Omg I busted up at that ending croc shot. God damn brilliant.
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.
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
Anyone else just think they should have a rotary option for every car? We need beautiful rotary noises more in our lives
I am with you on that
*Rob Dahm* Engineer an intake air cooler that uses Dry Ice in a closed system to cool your intercooler. Excellent videos, longtime fan here.
Wouldn't work dry ice is mostly co2 so not much "air" there.
@@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.
MY GOD!!! Get yourself a toolcart. Bring your tools to the project.
YESSS, came here to say the same thing!
Wow Rob! And now that you are 20 years old you love the 4 rotor lol!
How much do you save with aftermarket lightweight rotors?
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 ?
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.
Rob, how about Tesla model S with 3 rotor swap? Or why not 2 three rotors, one for each axle!
Amazing project idea!
In this video Mr spaghetti tells us why 3 spicy meatballs is better than 2.
Can you do a comparison between the 4 rotor and LS. And explain how you get a 4 rotor since Mazda didn't make them for production vehicles.
Wise Guy you can get a 4 rotor by taking two 13b’s and putting them together. The only hard part is getting an eccentric shaft since Mazda didn’t make one. But some rotary shops custom make them. I’m sure if Rob made a video he would go into more detail.
It's almost like he made almost a whole video series about getting the 4 rotor, and then it getting lost, and then him having to buy the parts a second time from the guy who bought them at a FedEx auction.
@@dan.r9220 thanks man, I didn't know that he did. New to the channel and looked and found some of those old vids. Appreciate the direction.
@@wiseguy__ of course man!! Always here for the help. Rob has a lot of good rotary content from back in the day. Then he took a long break and is now back on more consistent video making.
Pinball Master no thats not how you do it.
love the build. Now id like to see a cost comparison to make 7-800hp with the 3 rotor vs the LS6.. love you rob but you know what the outcome of that would be... lol
None of this is about bhp/cost ratio, it's about building something ridiculous, something you WANT to build, something you're passionate about. If you're life is an LS, that's fine, go do you, the LS motors are fantastic...if you prefer a 4cyl turbo or something, that's also fine, go enjoy
There's no use in using cost as a comparison when it's not a factor in the first place
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.
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 :)
1: please get a power ratchet.
2: could you put all of your motors on engine stands. Then you can roll them around like a rodeo.
3: one of these days you need to do something on the fancy billet rotaries.
Learning!!
I'm too stubborn to use power tools but it helps me remember where things go when I take my time .
You love it because you have someone else build it for you.
2:29 ROB YOURE REALLY CLOSE TO THAT LAMBORGHINI ITS MAKING ME ANXIOUS
So, let me get this right, a giant turbo 20b will make more power than a stock ls6? Um, duh?
A modified N/A 3 rotor is only going to make 300whp.. a stock ls6 is going to make more... Turbo'd 3 rotor, vs turbo ls6, they're both going to make tons of power.
You also weighed the cast iron stock manifolds for the ls6, but not the manifold for the 20b...
I'm not hating on the 3 rotor, in fact, I would love to put one in my ae86 like those crazy Japanese guys did years ago... but this is a apples to oranges comparison masquerading as a "fair" comparison.
20B exhaust manifold was still on the motor when he weighed it.
The lambo needs a 3 rotor one day, with a compound setup
6 rotor N/A
Keep up the awesome videos!
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....
love you rob dahm
"don't scratch the Lambo" keeps looping in my head..... Frig I would not be working that close to that car.
I'm surprised to hear the 13B from Rob's car only 350 lbs include everything, I remember someone weight a 13B-REW (twin turbo one, with all the stock accessories on it) was around 510 lbs, where LS engine were merely 400 lbs.
WRONG HOLE WRONG HOLE!
you said to add our own commentary
Love the outro
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.
everyone- we want the four rotor done
rob- why i love the 20b so much
Wow +100lbs for the 3 rotor, surprising! 2 rotor can make plenty of power these days.
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
Awesome update. Cool to see progress on this crazy project, it may actually run one of these days 🙂
NICE CROCS JERRET
I'm not trying to criticize and I'm certainly not a fanboy of pushrod LS engines, but after comparing them and stating that they were comparable in weight with the 3 rotor being just a bit lighter, you stated that the 20B could kick the LS6's ass. But in stock form a little googling led me to find that the the 20B produced 300 HP with 10 lbs of boost but the LS6 produces a minimum of 385 HP with no forced induction. I think it's also well known that rotary engines consume a lot of fuel, so I don't think that is kicking ass. Especially since the LS6 could still be force fed to increase it's numbers just like the rotary could. To make a fair comparison I think both engines would have to be in a similar state. It would be more accurate to say that PER LITER of displacement, the rotary kicks ass. That seems fair. Am I missing something or are you indeed being a fanboy?
Again, nothing against the rotary. I love the small size and light weight, but in this case that doesn't seem to be the advantage.
The rotary can make more power if you can rev it up to 11000 rpm without it blowing up.
It can make more power if you can rev it up to 11k rpm it without bowing up. Though it'd need premium fuel n ither stuff
Personally i think the best ice is 2 stroke opposed piston engines tho. Double the power strokes and already self balanced engine.
Mazda Miata but would it make similar power to the ls6 but revving higher and would it be nearly as reliable? As OP said, not fanboying LS’s. Just curious
Mazda Miata by revving higher*
The n/a LS in the dry around 400lbs...
The 3rotor with turbo around 400lbs...
Taking that package, the 3r wins - this is what he did say; also he did mention, that you can do forced induction on the LS but that will add weight as you need additional oil cooler, turbo(s), piping aso....
You can then build a twin-turbo 4-rotor - that sounds like a F1 car and goes like the Belzebub who burned his balls on the stove.
Hey rob. I’m an irresponsible teenager with disposable income and a dream to own an FD rx7. In this market what do you think is the best / most cost effective way to go about getting one?
The sound off it is heavenly too
I love your Mazdatrix comment, and your right!
It is an old, dark, wooden building full of no-nonsense, been there-done-that, curmudgeons…….but damn it, they know their stuff and the products and experience are top notch!
My "E" build S5 13BT is now about 17 years old and still running strong, not quite daily driven on about 15psi of boost.
The 2 rotor 13B RX8 engine does have three runners on the Exhaust manifold due to the the side port exhaust design.
Yea but the renesis is a special case that nobody builds for performance cause its pointless.
@@fastec5 Not true. People reliably have installed turbo's with proper piping and intercoolers to achieve 300 BHP on a renesis engine at 12 psi of boost. It's not common, but definitely can be done and not completely difficult.
@@sofakingdom3076 we are talking from the factory here. You are talking to an RX7 owner who is piecing a Reni together in hybrid fashion to slap into my FB lol, I know. But the Renisis is the engine that destroyed the rotary's name.
@@fastec5 Emissions destroy many engines including the renesis. I think it's great for what it is.
@@sofakingdom3076 except for the inherent design flaws Mazda put in it. The exhaust port design is terrible and allows carbon to build up. When that carbon buildup breaks off bye bye seals. And the oiling system is terrible. Mazda fixed the Reni's issues when the S2 came out but by then it was too late. Also, emissions affected the 12a and those things were bulletproof.
what's going on with 4 rotor?
Rotary corvette sounds cool, but how bout a 26B Diablo ma man?
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.
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+.
@@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.
@@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"
@@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.
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.
Anyone know what apex seals Rob Dahm uses?
Rob Dom’s garage is a OCD persons nightmare 😂
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...
I'm from the Wisconsin and am wondering where do you source your 20B's from? Which engine importer do you use?
Dahm with another one!
Rob is the kind of guy to pull a motor full of fluids and swap it
Just mentioning this but the Renisis has 3 exhaust ports as well
Please get that hoist away from the Lambo your giving me a heart attack !
Robert, will thou be hosting a meet-and-greet of sorts any time fairly soon?
Jarod forgot to put his crocs in 4wd
Can I buy your ls6 it’s for my frs
Can I buy your frs for my junkyard
@@m1abrams1776 can i buy your junkyard for my business
How u gonna do the japanese like that
Can I buy your corporation to move it to Taiwan & completely ruin qc & use junk resources & child labor???? Plz..
@@rosegold-beats can I buy your opinion & swap it into a Ford anything
Thanks for the accurate weights!
What's better than 2 wheel dollies? Two crawfish dinners with a side of Doritos
Those crocs will haunt my dreams
4 rotor spotted a @11:29 bottom left on the floor.
How many cars are at the shop?
"In this video we put an LS6 on two wheel dollys. The power to weight ratio is insane."
The question I have, is can you make a rotary as reliable, or last as long as an LS?
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...
@@adamwainwright9658 Well you kinda have to drive rotaries like a dickhead.
Hello,
You think it's possible to put a 3 N/A rotor on a RX-8? (and how much horse power to expect?)
Thanks ;)
Check out Defined Autoworks. They got a N/A 3 rotor peripheral port making 475 to the wheel. Streetable power, half bridge with Rx8 10:1 rotors, milled for rx7 seals. Probably 400 wheel. As for putting it in the Rx8, you got $50k?
Considering that the 13b/20b engines are totally different to a Renesis, not to mention the engine harness aso.
Do you want to have the electrics in the car working as from the factory? - if yes, you might in the $40k to $50k region.
Here in the UK, RX8 cost pretty much nothing, the other day I found one for £500 with the good old hot/cold issue - and 13b raceport rotary engines you can get from 1.5k upwards - but when I checked the work what the built involves and considering I have a 40hrs job and also like my other hobbies... I stuck to my BMWs - they fast too.
Does anyone know about any N/A high HP 3 rotor builds? I love N/A rotaries but i cant see how a 2 rotor could stay competitive N/A
Josey H11D a guy local-ish to my just built a NA 3 rotor and it supposedly puts down 300whp
ruclips.net/video/5_ueXnZC4Qg/видео.html
A 20b does *NOT* make “way more torque” vs an LS6 NA or Turbo
If it were true, everyone would be running them.
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!
🔥 Braden Carlson impersonation Rob 😂😂😂😂😂👍
Yeahaa Rob can't wait for tear down and rebuild.. You should semi pp the motor 👍 and really put the piston fan boys in there place
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...
They make scales the you can hang things from... weird flex but okay XD
1:34 ls6 swapped dollys
Don't you mean why WE love the 20B LOL God I want one
need to build the 3 rotor as a billet motor next build, will lighten it up and allow for easier rebuild as if you score a iron the faces are replaceable.
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?
It could never compete with a Ls block 😂
Does a diesel rotary exist?
That sounds like it would be an unreliable mess (more-so than regular gas ones)..
Technically it should be do-able, but never heard of one.
For some unknown reasons. The 3 rotor is my favourite car
How can an engine be a car.
You need to go billet housings on the 20B mate!
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?
Is their a way that i Can maybe buy that ls6? Me and my father are looking for one to ls swap our jeep
Could you put the cost of the building the 3 rotor and getting it running on your videos. No one talks about that.
On today's episode Rob is trying to explain why a 3 rotor is better than an LS while pulling down his dead 3 rotor