https://www.gnarpowpow.com/tags/roll-racing/ Tue 05 May 2026 01:03:49 +0200 https://www.gnarpowpow.com/videos/19832/1200hp-awd-honda-civic-vs-1300hp-nissan-gt-r-drag-race-honda-vs-haters/
It's a spicy one! Stacy is back with his R35 GT-R capable of 2200hp and he's up against Driver B in his AWD-converted Civic sedan with a Turbo K-series under the hood. Things get a little heated when one of the drivers jumps the start - but that's drag racing for ya! DRIVER B / 1994 HONDA CIVIC 4 DOOR http://www.instagram.com/driverb STACY BARNETT / 2015 NISSAN GT-R http://www.instagram.com/2200hplambo Big thanks to K&N Filters! http://www.knfilters.com/ IG: https://www.instagram.com/knfilters/ Big thanks to Sunoco Race Fuels! https://www.instagram.com/gosunoco/ More THIS vs THAT: https://www.youtube.com/watch?v=d6UM7PBDugA&list=PLhU72li4fhIca_hXD0v8PFHRahreBuPJa A special thanks to our hosts at Santa Margarita Ranch! IG: http://www.instagram.com/Santa.Margarita.Ranch FB: https://www.facebook.com/santamargaritaranchca http://www.HistoricSantaMargaritaRanch.com ► Gear Up in Hoonigan Style: https://bit.ly/3GxGqqU ► Upgrade your ride with Throtl performance parts: https://bit.ly/3V98TY4 Visit the Hoonigan Store in Compton! https://goo.gl/maps/nQGZPnGBw45FTNCx9 We’ve got channels for all your car content needs. Subscribe, nerds. The Hoonigans: https://www.youtube.com/user/TheHoonigans?sub_confirmation=1 Ken Block: https://www.youtube.com/KenBlockHHIC?sub_confirmation=1 Project Cars: https://www.youtube.com/c/HooniganProjectCars?sub_confirmation=1 Bonus: https://www.youtube.com/channel/UCFhUumuHyYL-mAXSeZVbqMg?sub_confirmation=1 Stay fresh with the latest apparel: https://bit.ly/3URuDYB Facebook: http://www.facebook.com/TheHoonigans/ Instagram: http://www.instagram.com/thehoonigans/ Follow Our Crew: Brian Scotto http://www.instagram.com/brianscotto/ Hert http://www.instagram.com/hertlife/ Vinny http://www.instagram.com/vin_tra/ Zac http://www.instagram.com/mister_zachary/ Suppy http://www.instagram.com/suppymk4/ Ron http://www.instagram.com/roncar/ Alex Grimm http://www.instagram.com/grimmbbussin/ Big Rich http://www.instagram.com/thatdudebigrich/ Jameson http://www.instagram.com/ronin_metal/ Trevor http://www.instagram.com/bazoomking/ Angelo http://www.instagram.com/tpfmfg/ Daniel http://www.instagram.com/danjoclaridad/ Do yourself a favor and hit the bell so you don't miss any uploads. 00:00 Intro 02:09 HONDA: Driver B's 1994 Civic 05:49 HATER: Stacy's 2015 Nissan GT-R 09:18 Predictions & Prep 10:28 Round 1 12:01 Round 2 14:00 Round 3 HOONIGAN DOT COM https://bit.ly/3GxGqqU ]]> Mon 21 Nov 2022 22:02:36 +0200 https://www.gnarpowpow.com/videos/19832/1200hp-awd-honda-civic-vs-1300hp-nissan-gt-r-drag-race-honda-vs-haters/ https://www.gnarpowpow.com/videos/19842/1100hp-turbo-integra-drag-races-700hp-fox-body-mustang-honda-vs-haters/
No replacement for displacement? Aaron's Acura Integra may have less than half the displacement of Deon’s Mustang, but he's got a turbo big enough to swallow up small children to compensate. Will it be enough to overcome the torque of Deon's 7.0L Windsor? We'll give you a hint: the teal car wins. AARON THOMASADO / 1995 ACURA INTEGRA http://www.instagram.com/fat_kid DEON EFORD / 1985 FORD MUSTANG FOX BODY http://www.instagram.com/teamdeonmotorsports More THIS vs THAT: https://www.youtube.com/watch?v=d6UM7PBDugA&list=PLhU72li4fhIca_hXD0v8PFHRahreBuPJa Big thanks to K&N Filters! http://www.knfilters.com/ IG: https://www.instagram.com/knfilters/ Big thanks to Sunoco Race Fuels! https://www.instagram.com/gosunoco/ A special thanks to our hosts at Santa Margarita Ranch! IG: http://www.instagram.com/Santa.Margarita.Ranch FB: https://www.facebook.com/santamargaritaranchca http://www.HistoricSantaMargaritaRanch.com ► Gear Up in Hoonigan Style: https://bit.ly/3USTax9 ► Get Wheels: https://throtl.com/?ref=Hoonigan Visit the Hoonigan Store in Compton! https://goo.gl/maps/nQGZPnGBw45FTNCx9 We’ve got channels for all your car content needs. Subscribe, nerds. The Hoonigans: https://www.youtube.com/user/TheHoonigans?sub_confirmation=1 Ken Block: https://www.youtube.com/KenBlockHHIC?sub_confirmation=1 Project Cars: https://www.youtube.com/c/HooniganProjectCars?sub_confirmation=1 Bonus: https://www.youtube.com/channel/UCFhUumuHyYL-mAXSeZVbqMg?sub_confirmation=1 Stay fresh with the latest apparel: https://bit.ly/3LFRL8Q Facebook: http://www.facebook.com/TheHoonigans/ Instagram: http://www.instagram.com/thehoonigans/ Follow Our Crew: Brian Scotto http://www.instagram.com/brianscotto/ Hert http://www.instagram.com/hertlife/ Vinny http://www.instagram.com/vin_tra/ Zac http://www.instagram.com/mister_zachary/ Suppy http://www.instagram.com/suppymk4/ Ron http://www.instagram.com/roncar/ Alex Grimm http://www.instagram.com/grimmbbussin/ Big Rich http://www.instagram.com/thatdudebigrich/ Jameson http://www.instagram.com/ronin_metal/ Trevor http://www.instagram.com/bazoomking/ Angelo http://www.instagram.com/tpfmfg/ Daniel http://www.instagram.com/danjoclaridad/ And turn on notifications so you don’t miss out on the latest uploads! HOONIGAN DOT COM https://bit.ly/3LFRL8Q 00:00 Intro 02:18 HONDA: Aaron's '95 Acura Integra 06:42 HATER: Deon's '85 Ford Mustang Fox Body 10:29 Predictions & Prep 11:30 Round 1 13:57 Round 2 15:35 Round 3 ]]> Mon 26 Sep 2022 22:05:24 +0200 https://www.gnarpowpow.com/videos/19842/1100hp-turbo-integra-drag-races-700hp-fox-body-mustang-honda-vs-haters/ https://www.gnarpowpow.com/videos/19843/all-motor-honda-crx-vs-r34-skyline-drag-race-honda-vs-haters/
We're back with more Honda vs Haters and this round is a lesson in power-to-weight ratios. Alfredo "Tiny Toes" brought out his bare-bones, all motor CRX with a B20/B16 Frankenstein to line up against our own Uncle Gary in his mildly tuned R34 Skyline and it's a close one! ALREDO "TINY TOES" / 1988 HONDA CRX http://www.instagram.com/tinytoproductions GARY KING JR / 2001 NISSAN SKYLINE R34 http://www.instagram.com/kinganytime More THIS vs THAT: https://www.youtube.com/watch?v=d6UM7PBDugA&list=PLhU72li4fhIca_hXD0v8PFHRahreBuPJa Big thanks to K&N Filters! http://www.knfilters.com/ IG: https://www.instagram.com/knfilters/ Big thanks to Sunoco Race Fuels! https://www.instagram.com/gosunoco/ A special thanks to our hosts at Santa Margarita Ranch! IG: http://www.instagram.com/Santa.Margarita.Ranch FB: https://www.facebook.com/santamargaritaranchca http://www.HistoricSantaMargaritaRanch.com ► Gear Up in Hoonigan Style: https://bit.ly/3DzIPQg ► Get Wheels: https://throtl.com/?ref=Hoonigan Visit the Hoonigan Store in Compton! https://goo.gl/maps/nQGZPnGBw45FTNCx9 We’ve got channels for all your car content needs. Subscribe, nerds. The Hoonigans: https://www.youtube.com/user/TheHoonigans?sub_confirmation=1 Ken Block: https://www.youtube.com/KenBlockHHIC?sub_confirmation=1 Project Cars: https://www.youtube.com/c/HooniganProjectCars?sub_confirmation=1 Bonus: https://www.youtube.com/channel/UCFhUumuHyYL-mAXSeZVbqMg?sub_confirmation=1 Stay fresh with the latest apparel: http://www.hoonigan.com/thenewnew Facebook: http://www.facebook.com/TheHoonigans/ Instagram: http://www.instagram.com/thehoonigans/ Follow Our Crew: Brian Scotto http://www.instagram.com/brianscotto/ Hert http://www.instagram.com/hertlife/ Vinny http://www.instagram.com/vin_tra/ Zac http://www.instagram.com/mister_zachary/ Suppy http://www.instagram.com/suppymk4/ Ron http://www.instagram.com/roncar/ Alex Grimm http://www.instagram.com/grimmbbussin/ Big Rich http://www.instagram.com/big____rich/ Jameson http://www.instagram.com/ronin_metal/ Trevor http://www.instagram.com/bazoomking/ Angelo http://www.instagram.com/tpfmfg/ Daniel http://www.instagram.com/danjoclaridad/ And turn on notifications so you don’t miss out on the latest uploads! HOONIGAN DOT COM https://bit.ly/3DzIPQg 00:00 Yo 02:01 HONDA: Tiny Toe's 1988 Honda CRX 05:07 HATER: Gary's Nissan Skyline R34 08:52 Predictions & Prep 10:15 Round 1 12:14 Round 2 14:09 Round 3 ]]> Mon 19 Sep 2022 22:05:40 +0200 https://www.gnarpowpow.com/videos/19843/all-motor-honda-crx-vs-r34-skyline-drag-race-honda-vs-haters/ https://www.gnarpowpow.com/videos/17095/1400hp-twin-turbo-r8-kart-goes-roll-racing-vs-gtr-viper-more-underground-racing/
What better way to save a wrecked supercar.... tearing it down and making it a giant go kart. Better yet.... make sure it has a built drivetrain and twin turbos cranking out 1400hp! Was as it faces off with a BL1300X GT-R owned by @Spumatic Carz , a @Dallas Performance twin turbo 2020 R8, and a @Calvo Motorsports Twin Turbo Viper. Follow @scraplifegarage for more details on the build and all their other crazy projects. Music provided by TuneTank: https://tunetank.com/tracks/2348-rock-sport/ ]]> Thu 30 Dec 2021 12:40:11 +0200 https://www.gnarpowpow.com/videos/17095/1400hp-twin-turbo-r8-kart-goes-roll-racing-vs-gtr-viper-more-underground-racing/ https://www.gnarpowpow.com/videos/11115/og-street-racing-on-the-texas-streets/
THROWBACK to Texas Streets 2013! Once a year for nearly a decade, we take a visit down south to observe the Super Bowl of street racing! Every year is something different and it's crazy to see how much cars and the culture has changed since this was filmed 8 years ago! Enjoy this free movie of the Texas Streets 2013! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- Island Boys Honda Civic pulls off INSANE win at World Cup Finals! https://youtu.be/hEk_I18XGrU --- 700hp V8 Nissan Frontier... (Twin Turbo ALL WHEEL DRIVE?!?!) https://youtu.be/OBGFxlkfOdE --- The FASTEST Stick Shift car in the World (1900hp Mustang) https://youtu.be/LKslGXklP5Q ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Snapchat ► Crew_1320Video ]]> Wed 08 Dec 2021 00:09:36 +0200 https://www.gnarpowpow.com/videos/11115/og-street-racing-on-the-texas-streets/ https://www.gnarpowpow.com/videos/11165/sketchy-220-mph-passes-on-an-airstrip-promods-aren-t-meant-for-this/
A promod at a half mile is something you never see! They obviously aren't meant for half mile passes, but this man has the stones to pilot it down the airstrip! These were the sketchiest passes we've seen at an event like this, but over the course of the weekend they really got the hang of it! Now they've got the half mile bug! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- FAST Semi Trucks INVADED the Texas Half Mile Event! https://youtu.be/V4vWZo3aOXg --- Track getting TORN DOWN after this CRAZY race event! https://youtu.be/j1koF2fUSGY --- Street racers COLLIDE at over 100mph (505 Cash Days) https://youtu.be/MOgDSzvyTPk ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Wed 03 Nov 2021 00:15:12 +0200 https://www.gnarpowpow.com/videos/11165/sketchy-220-mph-passes-on-an-airstrip-promods-aren-t-meant-for-this/ https://www.gnarpowpow.com/videos/11183/track-getting-torn-down-after-this-crazy-race-event/
We love Atlanta Dragway! So many memories created here for us on and off camera. Like many of you, we're sad to see it go. This video is our last time at the drag strip, at the SCT Atlanta event, before it closes and gets torn down. Not only did we document the entire event, we also got to hear some great stories form people that have been going to the strip for years. We hope you enjoy the video! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- Street racers COLLIDE at over 100mph (505 Cash Days) https://youtu.be/MOgDSzvyTPk --- Street Racing at the Mexico BORDER - Police, Wheelies, and $16,000 Pot! https://youtu.be/8Hm2wjoBaRE --- Fastest FULL SIZE GM Pickup in the U.S. (stick shift record) https://youtu.be/ufpJtwx-Jx4 ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Thu 28 Oct 2021 00:20:32 +0200 https://www.gnarpowpow.com/videos/11183/track-getting-torn-down-after-this-crazy-race-event/ https://www.gnarpowpow.com/videos/10985/200mph-race-twin-turbo-r8-vs-stretched-bike/
We went out to the Indy Airstrip Attack and Kyle decided to take his twin turbo R8 just for fun! On top of accidentally running his personal best in the half mile, he also had some fun runs/ride alongs! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- Motor EXPLODES at 200+MPH! https://www.youtube.com/watch?v=d8gqUWHwa0k --- The LEGENDARY "Big Red" Camaro goes 216MPH! https://www.youtube.com/watch?v=Jk0rvbsep9M&t=10s --- 2500HP Javelin WRECKS & ends up on its roof! :( [Hot Rod Drag Week: Day 5] https://www.youtube.com/watch?v=yg-oQhr_QxI&t=945s ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Thu 30 Sep 2021 19:46:19 +0200 https://www.gnarpowpow.com/videos/10985/200mph-race-twin-turbo-r8-vs-stretched-bike/ https://www.gnarpowpow.com/videos/11003/ice-cream-cruise-2021-the-experience/
The Ice Cream Cruise is our favorite event of the year! To sum up the whole event it is nothing but FUN TIMES AND RACECARS! The cherry on top is that it's all for a good cause! We raised over $60,000 for the American Foundation for Suicide Prevention! The Ice Cream Cruise has a HUGE car show with thousands of cars lining both sides of a 2+ mile long road course, skid pad, drag racing, roll racing, a dyno, a puppy show, and more! EVERY YEAR it gets better and better! Make sure you make it out August 5th, 6th, and 7th, 2022! A huge thank you to EVERYONE involved in making this 2021 event possible. So many volunteers and other great people made this a reality, THANK YOU! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- These new Supras are getting FAST (1050hp | Nitrous | 3.2L) https://www.youtube.com/watch?v=_7FDhdSXajs --- The CLEANEST engine bay ever? (2000hp | 7 second Mustang) https://www.youtube.com/watch?v=5PaNu8vpFeI --- 2800hp GTR uses ELECTRO MAGNETS for MAX downforce! (200+ MPH) https://www.youtube.com/watch?v=ihpeWOV1ToY ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Mon 30 Aug 2021 19:48:57 +0200 https://www.gnarpowpow.com/videos/11003/ice-cream-cruise-2021-the-experience/ https://www.gnarpowpow.com/videos/11008/sketchy-vert-is-back-new-pfi-speed-build/
Sketchy Vert has quite the history with us. We've filmed this car since the beginning and its pretty incredible to see how far it has come. In this video, we spotted Jered at SCT Denver with Sketchy's new setup from PFI Speed! The car isn't quite the sketchy h-pattern car it used to be back in the day, but it is MUCH faster now. Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- Midwest Street Racing (1000hp R32, Viper, & MORE!) https://www.youtube.com/watch?v=rbQV0Bg-krk&t=1s --- Worlds LARGEST R/C Car Race - $25,000 to win! https://www.youtube.com/watch?v=fFRswlfBMhc&t=778s --- The FASTEST Tesla Model S Plaid in the World! (He beat Jay Leno's Record!) https://www.youtube.com/watch?v=f7pPsZEjO6U&t=1s ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Wed 04 Aug 2021 19:50:14 +0200 https://www.gnarpowpow.com/videos/11008/sketchy-vert-is-back-new-pfi-speed-build/ https://www.gnarpowpow.com/videos/11502/gutted-audi-rs7-becomes-the-fastest-rs7-in-the-u-s/
Nobody has run a 9 in the U.S. with Audi's 4.0L twin turbo platform, until NOW. Eurowise Performance bolted everything they could to this thing and ripped out as much interior as possible! That paired with some magic on the laptop allowed them to CRUSH their goal! There's not a faster RS7 in the states! Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop ———————————————————————————————————— Watch more of our recent & related videos!: --- 1300hp STOCK MOTOR R8 goes LOW 8’s!! https://www.youtube.com/watch?v=T80uF12oJeA&t=189s --- Flamethrowing Datsun - INSANE 60ft's (Nitrous 474ci LSX) https://www.youtube.com/watch?v=sEywRGz_CHw&t=128s --- Big Wheel Chevy Destroys 9-second Hellcat (BoostDoctor) https://www.youtube.com/watch?v=89GKCSR42aw&t=2s ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Thu 08 Jul 2021 01:03:36 +0200 https://www.gnarpowpow.com/videos/11502/gutted-audi-rs7-becomes-the-fastest-rs7-in-the-u-s/ https://www.gnarpowpow.com/videos/11004/7-second-viper-4-rotor-madness-more-tx2k21-day-2/
The second day of TX2K doubled down on excitement as some of the CRAZIEST passes in TX2K history were made! Roll racing eliminations this year were some of the scariest passes we’ve ever seen, and drag racing classes faced some serious traction problems with the colder than usual weather here in Baytown, TX. Racing here at Houston Raceway Park has never been more exciting, especially for Kyle finally being able to go rounds with his AMS built Audi R8! Day 2 here covered the emotional spectrum all the way from exciting to terrifying, but we’re only halfway through and there is a lot of action left to happen through the weekend! Stay tuned to all of 1320Video’s media accounts for updates the rest of the event! Watch TX2K21 LIVE all 4 days on Floracing: http://share.flosports.tv/SHSn TX2K21 Day 1 Highlights: https://www.youtube.com/watch?v=irrj9B3S-aI&t=682s Subscribe ► http://www.youtube.com/subscription_center?add_user=1320video 1320Video Gear ► http://www.1320video.com/shop———————————————————————————————————— Watch more of our recent & related videos!: --- My Twin Turbo Audi R8 is DONE!!! (Dyno + First Drive): https://www.youtube.com/watch?v=rWrtv4X0qIM&t=8s --- They Bought $500 Worth of ICE to Finish!: https://www.youtube.com/watch?v=AeqAxpV0JrE --- 200mph races, Kyle’s FIRST R8 passes, & MORE! (TX2K21 Day 1): https://www.youtube.com/watch?v=irrj9B3S-aI&t=683s ———————————————————————————————————— MAPerformance your one stop shop for race car needs! ► https://bit.ly/MAPerformance-1320video Need BOOST? Grab a Procharger! ► https://www.procharger.com/ Need more Power? Texas Speed has you covered ► https://www.texas-speed.com/ ———————————————————————————————————— Facebook ► http://facebook.com/1320videos Instagram ► https://instagram.com/1320video 1320Video ► http://www.1320video.com Twitter ► https://twitter.com/1320video Snapchat ► Crew_1320Video ]]> Sat 20 Mar 2021 19:49:31 +0200 https://www.gnarpowpow.com/videos/11004/7-second-viper-4-rotor-madness-more-tx2k21-day-2/