@@T5Resonans yes that is correct they are effectively 2 inline 5s sharing a common crank; however, I dont believe they would sound the same. It really depends on firing order and pulses that creates the resonance. In the V10, no 2 cylinders are firing at the same time. Either way, the v10 is only firing each cylinder 1x every 2 rotations of the common crankshaft. The rotary is firing each rotor 1x each rotation of the shaft. The harmonic resonance of the 5 rotor firing once every rotation with the correct firing order will most closely match the harmonic resonance of the v10 firing 1x every 2 rotations. An I5 has half the exhaust pulses resonating than the v10 does so the frequencies are not quite the same. If that makes sense
That air intake design commonly used in heavy equipment it's called aftercooler, never seen that system used in car, but wow now I am, cant wait how it in action💨👏
Awesome video, really nice to see all the fine details of the charge air and cooling system. Sorry to hear about your friend Roy, he will be in my prayers.
Thank you for another Gift David this Friday Thank you. The packaging looks amazing Of the 5 rotor and the intake plenum right above the turbo location for it to be clocked perfectly for Water to air cooler. just wow. This thing is going to be a rocket! the attention to detail 🙂
this look so amazing like crazy wonderfull . im curious tho will we see a 5 rotor for the street in the future something less race car ? that car man looks like a dream im sure you re very proud of it .
Looks pretty tight between the velocity stacks and intercooler. To make them do their thing properly you wanna have atleast the diameter of the runner of free space in front of the stacks, preferably a little more.
That manifold is a work of art, brother. Do you feel that having the intercooler between the runners and the throttle body will affect the responsiveness?
Beautifull work! I would love to know more about the chassis, suspension anx its geometry. How do you go about choosing what you need, suspension is such a complex topic and you start only with a body so the path you choose is completly open, has to be super difficult.
OK, I got it. Some sinfully great welding + over the top engineering + delightfully smutty fabrication = Hard Core Car P0rn, so good it is almost a criminal offence. Job very, VERY well done.
Great build! I'm curious if you installed sway bars? That's one thing I wish I had on my SL-C, but they're stupid expensive from SL and I'm not convinced they're engineered all that well.
Great quality. Fantastic build. Not so sure about the way the rad and chargecooler are placed im relation to the side intakes. Looks like an air trap, high pressure with no escape for the air. Unless there is some missing ducting due to being not fully assembled.
The hard lines for the front coolers look nice but transmitting vibrations is what kills those thing. I would think they need to float on isolators and have a small section of silicone hose. Electrolysis is also a factor of course along with properly grounding the alternator.
I think you may have problems with this intake configuration due to too much temperature difference in the air that will go to each rotor your cold fluid inlet should be in the middle of the exchanger and the outlet at each end (better temperature distribution) like a tube that runs along the top to degas and a filling a bit higher would simplify the purge. Anyway nice job!
Please forgive my ignorance but would the intercooler that close to the runners not create restriction and excess turbulent flow? Is this option being used due to packaging restraints?
All the build looks good but the only thing I’m questioning is water inlet outlet being right next to each other on the intercooler. I can’t see how you’ll get full core length cooling. Even if you divide the end tank how will you divide the whole core vertically in the water section. Why not just move the outlet to the other end?
How much Horsepower do you want to get out of this Thing?I think you can get very close to a Bugatti Bolide with the 5Rotor.Can't wait to see the Car driving👍👍👍
This is a really cool idea and a few friends have discussed this before! The challenges would be the size of the components, especially the compressor and condenser involved and the parasitic drag from a unit that size to remove the degree of heat required. It ends up being a lot of BTUs as compared to cool air blowing into a cabin. Would be interesting to see though.
Awesome. Still curious if you figured out how to balance that engine? Always thought 5 rotors would be inherently unbalanced, but maybe not because its not reciprocating?
Is such a massive turbo necessary? So much power on such a light build, and possibly lag. This thing would be like a group C car which are notably very difficult to drive according to racers
Believe it or not this is turbo is actually on the small side for this size rotary. The turbo is sized based on required turbine flow to keep back pressure ratio down. So even if you just want 5psi boost, a big turbo is needed. Lag shouldn't be an issue. But, yes it may be scary to drive with all this power in a small chassis. Even Naturally Aspirated, but such is the point of the experiment 😎
why not run the water through the intercooler core, from one end and Out the other, rather than passing back? then the second pass of cooling water hasnt been warmed from the first pass already, so the air passing through the core, isnt passing air thats already removed air from the previous section?? it would be more efficient even if tiny. Otherwise, WOW, love it!!!
Dual pass cores increase cooling efficiency as much as 5 to 10 percent, so long as you have enough water pump to maintain flow rate with the added length / loop. Thank you!
@@dzmazzei dual past yes, but not how you appear to have it?? correct me if im wrong, but your water looks to be flowing, down one face of the incoming air, then back down BEHIND (or the other way around, I obviously cant tell the flow direction) . So what ever water flows first, picks up heat from the incoming air, then is required to pass again and remove more heat after its already passed through the core gaining temperature, so in effect will actually be LESS efficient on the second pass through the core. Dual pass works (best) when you have a radiator or an intercooler like I have set up on my own FD that has the medium to be cooled, pass through the core twice so its exposed to fresh air longer. NOT the cooling medium flows through it twice. I hope what im trying to say makes sense, unfortunately cant add pics here. Im sure it will be sufficient what you have done, but for all the effort, I would have simply made the water single pass so its cooler for the entire time its doing its job and sent back to the radiator to cool again and it would be, even if only a small way, more efficient. Either way, LOVE the build and cant wait to see it finished. Loved the FD, this is even better!
Hey Dave just curious why not go to methanol route? You'd save a lot of weight you wouldn't have to have any radiators to cool to engine the methanol does that.
Praying for Roy, hope he heals up quick. You’ll have to take him for a ride as the first passenger once the build is complete 🖤
That intake is a work of art
This build is out of this world! I loved your 4 rotor, but as a fan of 5 cylinder engines, i'm profusely waiting to hear this 5 rotor running
I worked out just the other day that it was 11 years ago that I first heard my first Volvo 5 cylinder turbo 👌 they sound wicked
Your a little off. With compression cycles, this is the equivalent of a 10cyl engine, not a 5 cyl , in function and sound.
@@victor1946 thanks for letting me know, v10s also stand out, arent those just two 5 cylinder engines though? 🤔
@@T5Resonans yes that is correct they are effectively 2 inline 5s sharing a common crank; however, I dont believe they would sound the same. It really depends on firing order and pulses that creates the resonance. In the V10, no 2 cylinders are firing at the same time. Either way, the v10 is only firing each cylinder 1x every 2 rotations of the common crankshaft. The rotary is firing each rotor 1x each rotation of the shaft. The harmonic resonance of the 5 rotor firing once every rotation with the correct firing order will most closely match the harmonic resonance of the v10 firing 1x every 2 rotations. An I5 has half the exhaust pulses resonating than the v10 does so the frequencies are not quite the same. If that makes sense
Think my brain just exploded trying to explain that. Hope it made sense.
Im all in for the odd engine build!
5cyl tune? Sweet
5rotor singing the heaven song? Hell yeahhhh!!
Everybody involved in this project is a work of art,this is going to be and amazing supercar and looking forward to the first start-up 👌
Extremely sorry to hear about your friend. Best wishes to him.
As always, love seeing this project leap and bound forward.
Sending prayers for Roy that he will be better soon.
That air intake design commonly used in heavy equipment it's called aftercooler, never seen that system used in car, but wow now I am, cant wait how it in action💨👏
use on mustang gt whit roush charger kit
Thank you for taking the time to keep us up to date on this abosolute piece of automotive art that you are creating. Great videos you are amazing.
So glad you're back
Awesome video, really nice to see all the fine details of the charge air and cooling system. Sorry to hear about your friend Roy, he will be in my prayers.
Thank you for another Gift David this Friday Thank you. The packaging looks amazing Of the 5 rotor and the intake plenum right above the turbo location for it to be clocked perfectly for Water to air cooler. just wow. This thing is going to be a rocket! the attention to detail 🙂
So excited for this build
Can't wait to see how this car will perform 🔥 Hope Roy gets better soon ❤️
Been looking forward to this clip!
What a beautiful build! Can't wait to hear her purrrrr
Man I was so stoked when I saw you upload this!!! My wife was like 🤨
I hope your buddy makes a quick recovery!
Wow amazing.cant wait to see this far start up
Nice intro song .
The build is coming along nicly!
That is some truly beautiful fabrication and welding
I can't wait to hear this thing going full send 😮😮
The 1970's porno funk was a fitting sound track for such a sexy build flick. Lol😂😂
That Car is a work of Art. ❤
Oh man this car is looking gorgeous
this look so amazing like crazy wonderfull . im curious tho will we see a 5 rotor for the street in the future something less race car ?
that car man looks like a dream im sure you re very proud of it .
This is going to be AMAZIN , thanks for spending all your cash on it :)
that intake is a goddamn impressive welding job holy moly
🙏🏿 prayers to Roy, passenger and their familes
Pull through Roy!
True inspiration bro. What a marvel 😍😍😍
Amazing car, cool music. Sorry to hear about your buddy Roy. Stay safe everyone ❤
Amazing bro
Strings for Ur friends and speedy recovery to them❤🎉
The whole this is nothing short of breath-taking. so excited to see this thing rip
This is amazing
Looks pretty tight between the velocity stacks and intercooler. To make them do their thing properly you wanna have atleast the diameter of the runner of free space in front of the stacks, preferably a little more.
David you should look into Peltier cooling as well!
Sick! can’t wait
This Car is going to be a hotrod I can tell, and I mean that in the best possible way bro 👍🏻
Its perfect
Pure art❤
Best wishes to your friend and his family 🙏
That manifold is a work of art, brother. Do you feel that having the intercooler between the runners and the throttle body will affect the responsiveness?
Beautifull work! I would love to know more about the chassis, suspension anx its geometry. How do you go about choosing what you need, suspension is such a complex topic and you start only with a body so the path you choose is completly open, has to be super difficult.
Wowzers this is going to be a monster 👹
Super top 🥇
Let’s fucking go bro
looks lovely...my man using a bimmer water pump just for his IC haha, suhweet...
OK, I got it. Some sinfully great welding + over the top engineering + delightfully smutty fabrication = Hard Core Car P0rn, so good it is almost a criminal offence.
Job very, VERY well done.
Best wishes to Roy for a safe recovery to him and the passenger 😟
Plenum side of intake is guna be more important to help have the forced air evenly distributed to each bellmouth so runners feed even amounts of air.
You should try to break robs rotary half mile record with this
Can't wait to hear the 5 rotor screaming down a track
Great build! I'm curious if you installed sway bars? That's one thing I wish I had on my SL-C, but they're stupid expensive from SL and I'm not convinced they're engineered all that well.
Hell yeah 🤘🤘
Great quality. Fantastic build.
Not so sure about the way the rad and chargecooler are placed im relation to the side intakes. Looks like an air trap, high pressure with no escape for the air. Unless there is some missing ducting due to being not fully assembled.
Béstia ❤
Where did you find the papers/documentation for the intake manifold runner length? Great build!!!
The hard lines for the front coolers look nice but
transmitting vibrations is what kills those thing.
I would think they need to float on isolators and have a small section of silicone hose.
Electrolysis is also a factor of course along with properly grounding the alternator.
When the front end hits the ground (& it will)
those forces will be transmitted to those coolers.
Got me gassed up
This is what I want to see is how this is made. Never knew how the other one was made.
I think you may have problems with this intake configuration due to too much temperature difference in the air that will go to
each rotor your cold fluid inlet should be in the middle of the exchanger and the outlet at each end (better temperature distribution)
like a tube that runs along the top to degas and a filling a bit higher would simplify the purge.
Anyway nice job!
Actually spit out my drink when you said it's a 106mm turbo
new video 🎉🥳
So what's next !!! ❤
What's the story with the pretty blue G body in the shop????
Do you happen to have a link to said SAE papers?
Daaaaam this car is gonna be insane fuk ya
Is it a constant flow from the radiator to the intake manifold
Please forgive my ignorance but would the intercooler that close to the runners not create restriction and excess turbulent flow? Is this option being used due to packaging restraints?
Did you think about using ac compressor to cool the intercooler?? I doubt this will have ac tho...
All the build looks good but the only thing I’m questioning is water inlet outlet being right next to each other on the intercooler. I can’t see how you’ll get full core length cooling. Even if you divide the end tank how will you divide the whole core vertically in the water section.
Why not just move the outlet to the other end?
Dual pass
How much Horsepower do you want to get out of this Thing?I think you can get very close to a Bugatti Bolide with the 5Rotor.Can't wait to see the Car driving👍👍👍
I've always thought, "why not use an evaporator core, with freon" for an intercooler core, or has anyone ever tried that, @Dave Mazel? 🤔
This is a really cool idea and a few friends have discussed this before! The challenges would be the size of the components, especially the compressor and condenser involved and the parasitic drag from a unit that size to remove the degree of heat required. It ends up being a lot of BTUs as compared to cool air blowing into a cabin. Would be interesting to see though.
Awesome. Still curious if you figured out how to balance that engine?
Always thought 5 rotors would be inherently unbalanced, but maybe not because its not reciprocating?
Custom E-shaft 72 degrees off for each lobe? 360/5=72
Would that fit in my RX8!!! 😆
Where are those oil coolers from?
Mishimoto
How tf is there no rob damn collab.
They're on near opposite sides of the country, and he's just been focused on finishing the build.
Rob is still on his first build so i guess he is just too far behind to see each other /s
Why? Mazzei is on a different level lol could be cool to see a pac performance collab
How many rotors are too many rotors? We have to find out, I guess 😁
Is such a massive turbo necessary? So much power on such a light build, and possibly lag. This thing would be like a group C car which are notably very difficult to drive according to racers
Believe it or not this is turbo is actually on the small side for this size rotary. The turbo is sized based on required turbine flow to keep back pressure ratio down. So even if you just want 5psi boost, a big turbo is needed. Lag shouldn't be an issue.
But, yes it may be scary to drive with all this power in a small chassis. Even Naturally Aspirated, but such is the point of the experiment 😎
why not run the water through the intercooler core, from one end and Out the other, rather than passing back? then the second pass of cooling water hasnt been warmed from the first pass already, so the air passing through the core, isnt passing air thats already removed air from the previous section?? it would be more efficient even if tiny. Otherwise, WOW, love it!!!
Dual pass cores increase cooling efficiency as much as 5 to 10 percent, so long as you have enough water pump to maintain flow rate with the added length / loop. Thank you!
@@dzmazzei dual past yes, but not how you appear to have it?? correct me if im wrong, but your water looks to be flowing, down one face of the incoming air, then back down BEHIND (or the other way around, I obviously cant tell the flow direction) . So what ever water flows first, picks up heat from the incoming air, then is required to pass again and remove more heat after its already passed through the core gaining temperature, so in effect will actually be LESS efficient on the second pass through the core. Dual pass works (best) when you have a radiator or an intercooler like I have set up on my own FD that has the medium to be cooled, pass through the core twice so its exposed to fresh air longer. NOT the cooling medium flows through it twice. I hope what im trying to say makes sense, unfortunately cant add pics here. Im sure it will be sufficient what you have done, but for all the effort, I would have simply made the water single pass so its cooler for the entire time its doing its job and sent back to the radiator to cool again and it would be, even if only a small way, more efficient. Either way, LOVE the build and cant wait to see it finished. Loved the FD, this is even better!
is that engine from NZ? namely ppre..
Australia, Billet Rotary Store (dummy block is in video actual engine is in crate)
An intake water to air intercooler...thats mind blowing 😮😮😮😮😮😅😅😅😅😅like wtf
He already had this on the 4 rotor and looked even cooler
No aud!?
What?
Don’t waste your time on throttle cable throttle body. Just move to fly by wire and save yourself the headaches.
Meow
Hey Dave just curious why not go to methanol route? You'd save a lot of weight you wouldn't have to have any radiators to cool to engine the methanol does that.
My thoughts and prayers to Roy, for a quick recovery.