10,500 RPM, 670HP rotary engine...without a turbo! | 3 Rotor 20B FD RX7 Time Attack car [TECH TOUR]
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- čas přidán 12. 11. 2017
- At the 2017 World Time Attack Challenge we caught up with our friend Richard Green of Green Brothers racing to talk about the 3 Rotor Racing/ADT Motorsport Mazda FD RX7 Open Class entry owned and driven by Andy Duffin.
The Link G4+ controlled 3 rotor peripheral port 20B engine pumps out a solid 670hp via nitrous injection and ELF RACE 102 octane fuel. Richard discusses the key components the team monitors in order to improve performance, the advantage of a peripheral port setup and on carbon, steel and the Iannetti ceramic apex seal option the car runs.
Watch to the end for some in-car footage.
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We’ve affectionately nicknamed Richard the ‘rotary knowledge robot’. His answers are short, sharp and accurate ;)
He’s much more comfortable in front of a laptop tuning than he is in front of the camera and we really appreciated his time and knowledge. Cheers Richard! - Taz.
Very interesting and superb interviewing skills getting the information out of a obviously very intelligent bloke that is not so comfortable in front of the camera.
Mister Charisma I would call him
Tom Buchan totally agree.
I wouldn't care as long as the rotary is done masterfully.
A legend in his own right!
this dudes answers are legendary.....the stig of rotary
I like Richard the robot. No bullshit, straight up info. Would like more people to work with like this.
Richard is the kind of guy I would want tuning my car. He doesn't focus on trying to throw out elaborate or long winded speeches to impress you, he lets his work speak for him in that regard. Wish Green Brothers racing and that monster 20b the best.
Wasn't aware that Kimi Räikkönen knew much about rotaries..
I don't understand why people are slating the guy for being quiet and to the point it's preferable to someone rambling unnecessarily. The interviewer did a good job and the guy obviously knows his shit but seems humble about it.
He was just a bit shy. Anyone that has something negative to say about someone like Richard stepping outside of their comfort zone and giving their own free time to help create content for others to watch for free is not someone worth listening to put simply ;) - Taz
Love this guy, no shit, all answers!
Some of the best tuners are super quiet silent type dudes. Andre always asks the right questions though
That interview was like pulling teeth! You went for ten minutes getting single word answers. Just brutal.
We couldn't get any material if no one stepped out of their comfort zone. Richard did fine ;)
If you've watched any of the other WTAC videos you'll notice that people are more relaxed the 2nd and 3rd time around which I'm sure will be the case here too if we catch him on film again in the future - Taz.
Oh dude, not knocking you for it, I'm impressed! If I'm not getting what I need from a subject, I go to the next one pretty quickly and try again at the next event. Took six tries and a month to get an interview from one guy I dealt with. Keep up the good work :)
Drew Shapiro did you get nothing out of this video??
Now there's a chap who wants literally nothing more than getting the optimal solution to any given problem which might appear in front of him!
That car sounds so amazing!
Talk about the iceman! Haha Andre can handle any situation being the legend he is. That 20b sounds amazing!
The legendary 767B and 787B engines were peripheral ported 4 rotor NA with ceramic apex seals and ceramic metallic coatings on the inside surfaces of the housings too. They also used telescopic intake runners to move the torque band up and down the rev range depending on how high or low the revs were. I guess the lack of forced induction helped with temperatures and a ceramic apex seal doesn't bend like a banana when it gets hot, scoring the housings like a metal one does. Nothing puts the max torque at the redline like a rotary. I think they're the best race engine design ever, personally. Still don't have the stomach to own one myself tho. LOL
Matt Bradley housings were regular ass old nicasil
Thanks to Jason Gibbs for the in car footage! - Taz.
One of the greatest rotary builds ever! Makes me appreciate and focus on improving an NA than a turbo... If I had one!
Cool video, this is one of the first applications of The Nitrous Wizards Revo system I have heard about in a video. You can inject WAY more nitrous as engine speed increases. Your only limit(s) is how much fuel you got, quality of fuel and engine internal strength.
I like this guy, he is a true rotary guru.
I hope theres more vids to come. So cool to get an inside look at the TA cars this year. Cheers from Denmark.
Thank u so much for this tech tour! Shout out to Andy Duffin and Joe Said (in 20b 124) as well as their teams for killin it in N/A rotary
Yes, this sort of thing wouldn't be happening without passionate people like Andy and Joe. Legends! - Taz.
Very interesting setup, thanks for taking the time to share this work of art with us
Wait, so a 20b can make 500whp n/a? I wasn't even aware they broke 500hp flywheel. That's fuckin awesome!
Beautiful sound.. the brakes sound like the 1991 24 hr winner..!!
I like this guy. This is the type of mechanic that builds good reliable rotary engines. Kilo is my mechanic and he is a no b.s guy also and builds one hell of an engine. A rotary mechanic that talks a lot is usually a better con man than he is an engine builder.
Good interview. You getting quick short answers and you making it flow.
Didnt know Elliot Goblet had a cuz.
All jokes aside, great insight! the world needs more of those no bullshit people.
This thing sounds amazing! Thank God you had some footage of it at the end, was about to go search for some after the vid finished 😏
Boosted & Built Garage right?! That rotary shriek is freaking sublime. N/a sound is amazing.
Love these detailed tech reviews guys. Thank you! Awesome work... keep em coming.
Great video!!!
My GOD!!!!! That sound is INTOXICATING!!!
fantastic vid as always!!!
Cheers Aaron, glad you enjoyed it mate! - Taz.
i love this guys answers, must have been a strange feeling interview though
Came back in 2020 and Richy is still a Robot here......😜✌🏽
The man, the legend =D - Taz.
@@hpa101 | 🤟🏽💯💯💯💯
Gotta love an rx7
favourite rotary car right here. almost a 787B
This guy is legendary!!!
You can actually hear the note of the engine sound change when the no2 is at full song. Different I must say
Great interviewer, knows his shit
Cheers Johnny!
I need to see this guy someday. Here in south eastern asia rotary aren't quite popular there're very few who can tune this engine to it's limit while keeping it's reliability. Also there's an issues with tuning flexibility due to lack of common knowledge.
Might be able to fly him over if you're lucky! Green Brothers Racing Ltd is the company =) - Taz.
High Performance Academy wow almost a year now and no notification or whatsoever pop up on my phone related to this video. Might be youtube’s bugs or something. Accidentally revisit this video seeing your reply on my old comment. Yup I hope I have a luck meeting him one day as for now I didn’t own any rotary powered car yet. Wish can own one one day.
Salute to Richy the Robot! ✊✊💯
Why does he look so angry LOL
Awesome video as always. I wonder what rotors they're using to make such high power naturally aspirated or if they achieved the power through lightening things in the rotating assembly. Did you guys get any details as to how it was achieved?
He's definitely not angry haha Like most of us he's just much more comfortable in front of a laptop than having to answer a lot of questions in front of a camera ;)
I don't have any of those details on hand but I'll see what I can find out - Taz.
Awesome, thanks!
was wondering that too..
We couldn't tell you exactly what rotors are used and that's probably something Richard would like to keep to himself. The main reason the engine is making 670 hp however is the spray of nitrous. Without that the power level is probably in line with what you'd expect from a well developed and well tuned 20B PP engine.
Not exactly naturally aspirated. It's running with nitrous
"Without the nitrous it's around 500hp at the wheels" 🔥 not crank hp guys.
He's a man of few words.
Want to be like Andre? We can't do anything about your accent, however, we can hook you up with some of the HPA branded gear that he wears.
If you're interested check out our brand new merch shop for the details - shop.hpacademy.com/
Our first batch of stock is extremely limited, so get in quick! - Taz.
Does the ecu purge the nitrous, is it calibrated to compensate for the delay between gas and liquid, or are they just injecting vaporized nitrous all the time?
Purging the system is only a consideration during the initial spray of nitrous. This is why it's common in a drag application so the nitrous provides maximum affect right from the launch. In a circuit application this is less of a concern since the nitrous system will be purged during the out lap.
Talkative fella lol. I think he was a little preoccupied with the Camera there. Great car though, definitely knows his stuff.
Longevity is the 🔑
Why don't you interview the fiat 124 13b turbo of j s racing.
The car says it all
That driver reminds me of Ricky Bobby and his first interview in the movie Talladega nights! Lmao
It sounds like a traction control system is being used when the nitrous comes on.
How hard on the housings are the ceramic apex seals?
Harder than carbons, not as hard as steel. They're much lighter than steel seals which helps with sealing at high rpm and reduces chattering
Chur to the green brothers mazdamob mfm101
How many liters?
Hahahaha , Gree Bros rock end of story..!!
Anymore videos of this car on CZcams??
Andy Duffin would be the name to look up. He's the owner and driver/all round good guy - Taz.
This guy is a robot. Mr. Personality.
This guy definitely looks like he wants to be there answering these questions.
We’ve affectionately nicknamed Richard the ‘rotary knowledge robot’. His answers are short, sharp and accurate ;)
He’s much more comfortable in front of a laptop tuning than he is in front of the camera and we really appreciated his time and knowledge. Cheers Richard! - Taz.
335hp per liter ?
Mazda cheats on their displacement by only measuring one rotor side
And well since each rotor is always doing something it’s a little disingenuous and should really be multiplied x3 like GM measures in their prototypes
Can't get a word in sideways, man!😅
this guy a robot
3 rotar? Nice
Yeah my bad! - Taz.
3 mortar lol
Lone Rider it's literally
the green brothers guy sounded a little robotic. he seamed annoyed to talk to that guy.
Love the car, what a noise.
guy reminds me of the tin man
It sounds more like a 26 I likey...one day zero one day.
I say give the guy a break, stick a camera and a mic in your face when your not used to it can feel weird I'm sure.
Supercharger > Turbo
They've really come a long way with those ai robots but this one needs some more work to seem like a real person.
chemical supercharger...mind blown
Are you human.... yes
are u sure hes not a robot?
Damm hard sell, old mate have about as match going in him as a dead rotary, good luck HP
Richard is on a mission not to give any information except one word which is ceramic 😭😭😭😭
He's very good at interviewing its just the economy of speech is just a lacking a bit too unforgivingly - I suppose if you knew him or were used to this you'd think nothing of it. Its a labour to listen to for me. Spit it out and get on with it son! One doesnt necessarily need to sacrifice clarity for speed. Maybe he lives way out in the country and is on some meds and I should suck it up and refrain from making such "accurate" observations to fall on deaf ears?
😐 ✈️face emoji
Enough talking! I want hear it go
,
You have the power. Skip to the end =) - Taz.
only 500hp without NOS ! why need lie to people?
How do you know that it is 500hp without NOS....? It's because we clearly state both figures in the video :)
You don't get NA and FI figures for every engine (as in what the engine is producing without boost) so I don't know why you would consider it misleading either way as the engine can handle and does produce 670 HP via nitrous - Taz.
Are this ceramic seals OEM from Mazda or they built own apex seals ?