Insane RX7 Drift Trike Build! Carbureted and Cooled

[@averageoutdoorsman9342]

The coolant plumbing being integrated into the frame is probably my favorite part of this build so far.

[@CriticoolHit]

Hands down that's some cool shit. I mean it's a rotary trike, that's badass. But running coolant through the frame? Now that's cool.

[@andrewobrien6282]

Did it on one of (or both) the Jeeps too if I'm not mistaken.

[@calebm.5698]

@@CriticoolHit they’ve done that on a few builds now and it’s always awesome.

[@Deconion]

Colonel Senders and the Camaro I believe.

[@niklaswo]

Yeah? Wait until you see the “wroom wrooms” 😂

[@the_freest_bird]

A Skid plate for that oil pan might be a good idea. Awesome build. Can't wait to hear it run

[@The_80_squarebody]

For sure

[@GrindHardPlumbingCo]

for sure!

[@zomgz932]

@@GrindHardPlumbingCo also please put a hoop that connects to the engine mounts on the front cover. I dont trust the inegrity of the trans mounts dealing with 140-160hp plus the weight of the engine and trans

[@imakedookie]

big comment here. torque and vibrations gonna wreak havoc with all that leverage

[@larrybreuer4495]

Ever the radical rascals...getting RID of a computer on an engine! What a novel concept...LOVE IT!!! 👍👍❤️

[@Shane-mn9tb]

MAN, you guys are legitimately AWESOME at building stuff!!!!!

[@Pr0d_T1m]

underrated You tube channel

[@itztrailerdude3557]

Fr

[@Theserranov]

1.17m subs and underrated don't go together i think lol

[@robertbelote5273]

@@Theserranov while these guys deserve it , you sir, are absolutely correct .

[@la_plata3588]

lol they're one of the fastest growing KZbin accounts

[@Noah-oz7ox]

@@Theserranov still underrated

[@that_red_dentside3968]

Carbonated? Awesome!

[@LargeShed]

carbureted** i saw that too

[@brycedorey360]

I was so confused id never heard of an engine being carbonated

[@that_red_dentside3968]

@@brycedorey360 😂same

[@simloverify]

I thought it was a play on words lol. Sounds like a soda

[@markg1495]

Yea def a joke haha

[@brianbrians3157]

You need some kind of shielding so you won't get sprayed with boiling coolant if the radiator pops.

[@trillrifaxegrindor4411]

it will be behind you anyway,what shielding do liquid cooled motorcycles have with the rad in front of you instead of behind?

[@MusangLaut2]

@@trillrifaxegrindor4411 fairings and cowlings? also the coolant port at the front is a common place to burst too

[@joshvandruff1790]

This thing is gonna be a monster! Can’t wait to see it rip!

[@GrindHardPlumbingCo]

for sure man! It's gonna be sick!

[@brayt0n]

the radiator sitting there scares me with burns incase the cap pops when overheating. also it looks lower then the highest point in the water cycle so you might have trouble bleeding air out of the system. sick build tho, keep it up

[@HighlandViking78]

I've heard of a "spicy" engine but never a "fizzy" engine, cant wait to hear the carbonation

[@GrindHardPlumbingCo]

we're just coming up with a whole new type of mechanics powered by typos LOL

[@indyjones3287]

I thought I was going mad. I read carbonated a few times, then came back to watch later and it was carbureted.....

[@HighlandViking78]

@@GrindHardPlumbingCo 🤣😂🤣😂

[@Edmund_Squid]

Grind Hard always has the best chill music.

[@GrindHardPlumbingCo]

glad you dig it!

[@Shane-mn9tb]

I agree! My fav so far is Akinaboy u132.

[@jacobboswell3374]

I have watched you all for almost two years now and I enjoy watching the crazy things you build and it’s inspired me to start working on my dads four door 74 Torino with mud doilies and pipes through the hood

[@GrindHardPlumbingCo]

hey man thanks for watching! That's so cool you found inspiration to work on that beast! You'll have to send us pictures once you're done

[@TheMeta6]

Looking so good!! You should probably think about adding some bleed ports to the tops of those frame rails... looks like airlock heaven!

[@caccadu12]

Nice! That’s what I’ve mend when I was talking about bomber seats for the triumph

[@sasperry]

This trike just gets better every time. Beautiful build guys

[@hunternowicki7300]

I honestly think a hand clutch might be the best way to go and a skid plate for the engine. Love the build

[@cjlane4465]

I liked the sponsor this vid! And you guys did a very straightforward job of showing its usefulness without boring me!

[@cjlane4465]

Music was fire as well

[@GrindHardPlumbingCo]

@@cjlane4465 hey thanks man!

[@anthonyestevez118]

What a wild machine! This is great. Thanks for sharing!

[@atragerlspezi9500]

Would have never thought of an offroad rotary drift trike and that's why I love it(and because of the way you do it)😍

[@GarySmith-up1un]

As a kid I grew up reading popular mechanics and they talked about the possibility of rotary engines in the future. Until watching this I had no idea there were in production and very powerful. So thanks

[@Someausie]

My man really done a montage of sorting nuts and bolts

[@mikeanderson2730]

I must admit i havent watch this channel for a while, and thought it was due time. And i found an absolutely mindblowing crazy trike, with an rotary engine!? Once again i bow my head for you guys, always the best ideas! Respect.

[@GrindHardPlumbingCo]

hey thanks Mike! You'll have to catch up!

[@brianhauserman592]

This thing is insane! The coolant lines are genius.

[@robromero5757]

Thats thing is nuts wicked scary

[@inthenightandy4616]

Integrated frame cooling is sick. Love it! Matter fact, love all GHPC content!

[@hellacarz7811]

So cool running the coolant through the frame 👌

[@davidblanck4131]

You all are legends. There isn't a build you have done that hasn't been exciting. This rotary monster is downright terrifying. Are you going to come up with a plastic tire liner for pavement use?

[@driftsfordays8879]

CARBONATOR! epic wraparound intake is epic y'all should get an aluminium seat for the 2J mower too

[@GrindHardPlumbingCo]

YEAHHHHHHHH

[@sofielee4122]

if you feel like it, I think some cooling fins on the hot side of the radiator tubes would look super dope, and take some stress off the radiator. Aesthetic AND functional!

[@mashrien]

Holy hell, a useful product I'm *actually* going to buy! This may be a first in ~35 years of ads being shoved down my throat. (Wait, no.. I bought a PlayStation w/ Crash Bandicoot and the Final Fantasy 7 DEMO disk because of a commercial in '97) I breadboard electronics and have boxes and boxes full of ICs, resistors, capacitors, mosfets, transistors, eeproms and ram.. These little jars would be AWESOME for this :D

[@GrindHardPlumbingCo]

LOL thanks man! The jars are sweet!

[@tylerbrotzman7452]

Here before carbonated is fixed to carburated

[@jacobbarton3820]

Same

[@markg1495]

I think it’s an intentional joke 😂

[@GrindHardPlumbingCo]

Proud to admit it took us a good five hours to realize LOL

[@TheManistheshit]

@@GrindHardPlumbingCo where can I find that seat?

[@thebeastfromthesoutheast7765]

Awesome work guys. Looks beautiful and that tubing certainly makes it look like its ready for business😎

[@Grimm-Gaming]

Carbonated Huh? I hope you leave it! I just drank some Carbureted Soda..

[@quailerfreak8966]

Hahaha awesome I caught that too😂

[@mweaver3757]

Same

[@mweaver3757]

Hope it stays fizzy

[@GrindHardPlumbingCo]

We're just the kings of the typos LOL

[@liamgideon5589]

this thing is looking so much cooler than I ever could have imagined it would when i first stumbled across the first video in this series

[@ronwalsh]

Great video, and finally, a sponsor selling something I need.

[@GrindHardPlumbingCo]

LOL heck yeah! You should give them a try, the jars are awesome

[@jackhume4532]

Cool 😎, I can’t wait to hear this rotary engine start and then power this trike around.

[@noduh736]

I like all the different colors on the motor so cool

[@RonSales]

One more hole in the frame for the filler tube for the coolant above the highest point for easier air purging of the coolant system.

[@stevensysk7711]

The first Mazda rotary engines came with a four barrel carburetor, I was Turbo charging these things in the 70s in a shop in Atlanta. Lots and lots of fun, trust me when I say you'll be putting a turbo on that thing soon. SUPER SIMPLE!

[@GrindHardPlumbingCo]

So sick! And yeah, we think at this point a turbo is pretty much inevitable

[@Fackler91]

You should build a small shield for the rad. Just incase it pops or something to keep you from getting burned. Love the build process 💪

[@hungphivn1586]

This is some of the best produced content I have watched

[@Martin-yl5zb]

The seat reminds me of a roman chariot. Nice build guys!!

[@ress87]

That thing is sick. Just keep in mind that exploding coolant system = serious burns. I'd make some kind of shield between the seat and radiator.

[@Noone-zd8lw]

Y’all are killing it!

[@manks5491]

this thing is an absolute weapon

[@coffelt683]

that intake manifold with a holley sniper efi kit would be the perfect combo.

[@dirtbiker5182]

I've said this before but now you guys are really close to this baby running. Rotaries generate huge exhaust heat and are insanely loud. A very thick walled exhaust with several mufflers will be in order.

[@jordanhorst6]

you guys make the best projects, full of originality and polished enough that I would buy one if they were produced. Good eye for design as well. 👍🏻

[@GrindHardPlumbingCo]

hey thanks man!

[@DetroitMicroSound]

RX7 (And the number 7 makes up the lower left-hand outline of a large lower case letter t.) ..............Spray bomb it all in Steel-It. 😎

[@g_money3184]

I’d be a little worried about sliding forward into the shifter with how close the seat is but I’m sure you guys got something planned

[@smoke-mirrors]

The emasculator....

[@brutalcrusadermaulgracies4246]

The "Ol' ButtPlug" shifter

[@chrisvann9023]

who needs kids anyways.....

[@offgridas]

Build an airtight shroud around the fans for the radiator, way more airflow, also should put something over the radiator so if it explodes it doesn't hospitalise whoever's driving like what happened a few cleetus and cars ago. My 2c Take it or leave it

[@DuckyFuzzer]

This builds getting sick can't wait to see it rip

[@lawrencefoster2120]

There's a cat in Austin who has a chopper three Wheeler with a v8 and he loves it. It's built real right.

[@FarmerFpv]

My goodness, y'all created another species!

[@gankylyfe9692]

No lie, the upside down seat made it look great so maybe an aluminum mudflap/diffuser would look awesome

[@StoleYaSweetroll]

I'm a simple guy, when grind hard post I click, and enjoy!

[@alexanderpotzelsberger3567]

Everytime, doesn't matter wath come

[@tommyrinehart292]

Cooling system through the frame😍 yes! You guys are awesome keep it up!

[@GrindHardPlumbingCo]

glad you like it!

[@logan6716]

This build is sweet! Can’t wait to see how the steering works once you get it up to speed

[@apexalaska]

My favorite build of all the stuff you have done was that totaled Toyota Tacoma. It is almost impossible to find those types of offroad builds on KZbin. Every time you look up anything about offroad builds all you get is brand new SEMA builds and ridiculously expensive builds that are never going to actually be used for rugged off roading. I really hope you guys do another video like that one. And also if anyone has any recommendations other than Grind Hard or Apocalypse Auto for building rugged offroad trucks like that from cheap/wrecked vehicles I would be very interested.

[@GrindHardPlumbingCo]

thanks man! The Crunchy Taco is a beast for sure! And Taco season is coming up here in North Idaho, so you'll probably be seeing it soon

[@Skiridr22]

Dang a Webber card, brings back allot of memories

[@albertcolburn6084]

Without the fuel injection on there. It looks like you could raise the engine higher. Awesome project can't wait to see it rip

[@edwardweisenburg16]

I have a 1983 Mazda rx7 I bought new. Only 60 k miles on it. I can't believe you guys rebuilt a rotary engine in your shed. Unbelievable. Your builds blow my mind. Oh yes and I'm glad you got your nuts sorted out . LoL 😂😎

[@kylanhusband2555]

This by far is going to be the coolest thing ever made wen it's done

[@nf2912]

I had the Mikuni version of that carb setup, was an absolute beast

[@Poizdrc]

A fan shroud for the rad is a must.

[@zacharyperkins3048]

Even the products you guys create that im not a huge fan of i still watch, have always loved the content. You guys should do more full size vehicle stuff! Build a miniature offroad semi!

[@GrindHardPlumbingCo]

hey man thanks! Appreciate it! We have a bunch of projects in the works - all sizes LOL

[@zacharyperkins3048]

@@GrindHardPlumbingCo always watching . Love the rotary build! Wish it was in the scooter tho haha🤣🙃

[@jamescollura1970]

Guys you might want to consider a secondary electric water pump back at the radiator to push the water back up the frame rails. While a centrifugal pump can draw some water in from vacuum it doesn't actually have any sucking power, if you get a large enough air pocket in the highest part of the frame rail you might starve the pump and stop water flow all together. As the water expands if you have a good enough overflow at the highest point in the system you may be able to get by but keep an eye that temperature.

[@Hamood_971]

Ive been watching them for about three years now and this has to be the craziest build ( crazier than the 2jz lawn mower or even the 1000 cc Jeep ) good luck 😃

[@MiniSchwendy]

Love your guys' builds! Might suggest a different placement for your fill port on your radiator. You'll be lucky to get all of the air out of the system with your fill port not being at the highest point... Just a thought! Keep up the good work!

[@TrulyUnfortunate]

Complete Madness!!!! I like it.

[@aaron71]

I don't think I'll ever be able to sort my masses of hardware, but those jars are pretty cool!

[@TheRandomManiacs]

nice work guys! maybe make a fill cap on the top of the frame for filling the coolant, and remove the air! and make sure its all welded before fill it up lol

[@antoinedurney2973]

Thanks smart jars for making Ethan organizing the shop

[@JhaeMo777]

Getting a lot closer and it looks good 👍🏼

[@captainlandyacht1328]

Use the vin from the Jag and get some plates and ins. Cool goin to town rig.

[@ihak707]

Will you guys be doing a bike style twisty throttle or a pedal? Or maybe of course, a thumb throttle

[@Ameritude]

Soo sick. That seat looks amaizing

[@Skiridr22]

Sam is having way too much fun 🤣

[@thomaspryor8202]

Looking good! A wider front tire, maybe?

[@plav032]

Not sure if you did it off camera, but the front stack with the oil pump/distributor gear/main pulley bolt is extremely important! You need to set up the end float, and make sure that those roller bearings don't fall down off the seats and get crushed when you torque down the front main pulley bolt. Also did you port match the manifold? That intake manifold/carb set up is sweet, but its for early (74') style 13b's. Yours is a S4 N/A block so it has the 6 port intake style, people will grind out the passage ways to match, not a huge deal.

[@braddeitrich4264]

Should put one of those roll bar hoops on it too just in case something happens to protect the driver!

[@michaeldeschenes8030]

Love the build. Definitely needs an oil cooler. Rotaries engines use the oil for a considerable amount of cooling. I think around 30%

[@juantabby4787]

You forgot the filler cap. Put it on top of a frame bar.

[@philneufeld2279]

You might have trouble getting the air out of the cooling system with the rad mounted so low. Might have to put a filling port up on the frame tube.

[@M.V.1]

Esagerato! Grande lavoro, create mezzi troppo forti. 👍🏻👍🏻👍🏻🇮🇹🖐️

[@markcastre7238]

Wooooah coolant in the frame🤯

[@robertbelote5273]

The green goblin , obi wan and Jimmy neutrons dad build a trike. Great video guys , love seeing this thing come up!

[@CMBProjects]

That is so cool! But one side of the frame will be hot because of the hot line coolant

[@aidanjarosgrilli]

you guys have gotta take it to Hoonigan!

[@goatslayerwp]

If you refuckulate the carbonator you can land on Juniper where they have killer space weed.

[@OperatorKaoss]

Just be careful with solid mounting that radiator, the frame might twist a bit and it might crack the radiator. It might also be a good idea to have the inlet from the engine to the radiator on the top and the outlet on the bottom.

[@maxmillion4216]

You guys are so amazing and how you come with all these crazy ideas.....! 👍🏻

[@jlucasound]

I know this is all to keep me and others from thinking about the Triumph Snowmobile Car thing...amajig. ;-)

[@stevencuenca1980]

Yo this thing is so close now.. great build series dudes...

[@EJ-74]

It would look so cool with chrome chains instead of cable's for the steering Can't wait to hear it fire up and take it's first rip 🔥👍✌️

[@jgalloway528]

You should weld a coolant fill above the engine on one of the tubes. Otherwise it’s gunna have a giant bubble in the cooling system

[@trentonbolton8643]

This thing is awesome man I want to build one now lol

[@fredericrike5974]

Yes, Yes! More vroom please! And all that room for activities! Like a honkin' turbo charger! Oh damn, hold Ethan's beer, somebody! FR

[@SillyDillysTunes]

As someone who’s ridden a lot of hours on my Tri-Z ATC, I suggest a fatter tire up front unless you want to plow straight. Find steering forks off of a sport ATC.

[@jimmypopp2695]

Wow, PIECES OF DRONE sounds lie an awesome name for a band!!