First Four Wheel Drive Test on this Mini Trophy Truck Project 

Why this channel hasn’t got to a million subscribers is beyond my comprehension. The craftsmanship, designing and quality of work is amazing.

For the top speed: hayabusa gear ratios: - first gear: 2.615:1 - sixth gear: 1.043:1 overall gear ratios with Low, medium and high: - first low: 44.455:1 - sixth low: 17.731:1 - sixth medium: 9.9:1 - sixth high: 6.26:1 looking at the dyno of a gen1 hayabusa engine we take the max hp rpm for calculating the max speeds -->9500 rpm (1/min) speed = number of revolutions(1/h) * Wheel circumference (km) / final ratio number of revolutions = 9500 1/min = 570000 1/h wheel circumference = 255.35 cm = 0.00255 km Low range, first gear @ 9500 rpm = 32,7km/h = 20.3 miles/h Low range, sixth gear @ 9500 rpm = 82 km/h = 51 miles/h Medium range, sixth gear @ 9500 rpm = 146.7 km/h = 91.1 miles/h High range, sixth gear @ 9500 rpm = 232.3 km/h = 144.3 miles/h you probably cant drive that fast because the engine wont have the power to reach 9500rpm in high 6th gear, but thats the theoretical speed. You can use the formula to check and calculate other speeds at other engine rpms and compare it to real life Please feel free to correct anything I might have done wrong.

Everyone’s been so excited to see this thing done, it’s so sick and can’t wait to see it painted 🔥💯🇺🇸

@rather B welding You're cooling issue can be fixed with a vacuum bleeder for the coolant system, you have a massive air bubble and the pump can't move air. But if you vacuum the air out you can make the system solid with fluid.

For your coolant if you do not bleed all the air out of it, it will not cool properly. Try that before relocating the radiator, its the same thing with cars. you might need a coolant bleeder tool that hooks up to your air compressor to bleed the coolant.

I love how creative this guy is, it’s insane what a single person can do on their own 🔥💯🇺🇸

I just wanted to say that if you stick with the current cooling system and add an electric pump for more flow, you will get far better cooling than the rear mount radiator. Mainly because of the piping running to the front acting as a radiator also. You might actually run into a problem of too much cooling once it flows properly. Awesome build.

This build is so sick but I think it would be awesome to see the front end sit a bit higher in the air.

i really like your idea of putting two coolant temp sensors, going in and coming out of the engine, should give you a good idea of how well your radiator is working at different speeds right? definitely sounds better without the baffle but not too loud.

"All I have to do is disassemble the entire rear suspension..." No problem! 😉 Thanks for the videos! 👍👍

Once you run those mufflers for a while they'll get louder after the packing has time to break in. I can't wait to see you hit a trail with this. It's an absolute work of art dude.

Exchange the radiator with the fuel tank, this way you can cut some off of the long back end, and I still think you need to drop that chain tentioner to the lower chain in place of the upper chain you have now...

You could probably fab something like what we use in kart racing to keep the sprockets and chains protected from running over curbs on track. Just a guard that is slightly larger in diameter than the sprocket with the chain on it that fits on both sides of the sprocket. Helps keep the chain on as guide but also protects the sprocket itself from being bent or damaged.

80mph (129kph) @10000 rpm with your 6:1 ratio. Worked out on first gen Hayabusa gearing..... Awesome work. Looking forward to it on the trails

Make it your own man, the gearing should be what you need not what other people want👍

I'm watching this project since part one, and this is what I was expecting to see!! Congrats, that is really great to see this beast working!

I believe that is a spark arrestor that you removed. Most parks require one so you dont catch the wooded areas on fire in the summertime. Might want to verify that is what it was.

What a hell of a machine. You really did a great job. And all by yourself. SUPER!!!!!

Freaking sweet build. Hitting the trails is gonna be fun.

Dude, your like a friggin mad scientist! Wow is that thing sweet just like everything you build. You sure are a smart fella and talented fabricator!👍🏼🤘🏼✌🏼

This guy is the epitome of American craftsmanship and ingenuity. What will he build next?!

This is pretty incredible build. Really cool looking too. I suggest flared fender parts. Maybe on future builds, for the rear drives if you keep using the jack shaft/chain final drive you could do tubbed arms? Instead of so much tube steel, use some channeled flat stock which is also structural with tube stock upper...not sure if what I'm saying makes any sense. Basically, thicker shee metal lowr part of the arm to help protect the chain? I don't do any of ths stuff, I work on my cars and vehicles but don't do any fabbing.

the smile on your face says it all awesome build you should be proud of yourself

As for the exhaust system, I worked in a muffler shop. and ultimately you will want the exhaust system to be free flowing. with as few sharp bends in the system as possible. but if you're wanting low end grunt and more torque. you will want to have a small amount of back pressure in the system. some people think that a straight pipe is better but they are incorrect. and something else might want to be aware of. is that in some States they require a spark arrestor when you are on the trails.

Looks great man! can't wait to see it in full action.

Something you may want to do with the radiator/fan is provide an overrun so that the fan remains on for a minute or two after the engine is turned off. A lot of vehicles have this now as the engine/coolant continues to heat after the engine is off for a short while. Another cool & innovative build 👍

That voiceover sound quality is excellent.

Loving this build. So much technology involved.❤❤❤

Awesome build Chris. Your work ethic is awesome. I wouldn't believe you if you told me you built this by yourself in a shed if I didn't see it myself.

Love the build. And you communicated the excitement of testing it out, I felt right there with you, nice!

This channel growing fast I’m glad to be apart of it love the videos and your fabrication skills are are a skill of there own . Your content always delivers and can’t wait till the next upload keep them coming.

WOW!!! This one has came from a long ways Glad you did the gear swop, looks to be night and day difference. I think it’s time to take it to Windrock.

Cool. Always better to attack a rock going slow than have to slip the clutch and burn it out.

I’m loving the craftsmanship Food for thought I have thought about using fiberglass body parts for a truck like hood front fenders and bedside to make the trophy truck look

This thing is incredibly cool. Can't wait to see it finished!

It's badass. That you build these machines by eye is nothing short of astonishing.

I’ve been here since the beginning, less than 10k subs it’s insane to see how far these projects have come along!

To watch you build this thing has been awesome and you did a really good job on it

Dude it sounds FANTASTIC! Drive the thing!

This is the coolest buggy that you've built so far!

This thing is so kick ass.. can’t wait for the full send

Man that thing looks like a ton of fun. You do great work man.

That’s got to make you feel good all that work and you made it to the TOP of the fire wood ✌️🤭

Don’t move the radiator just add a pump for coolant fluid flow because if you move it to the back all your weight will be in the back which could cause it to flip back on steep hills you need to get a vehicle scale so you can see were your weight is at. On a 4x4 you want it even unlike a race car where you want most of the weight in the front to keep the cars nose down. You’ve gone this far you mite as well do it, right. Great job!

Your awesome dude. And the trophy truck is so wicked. Turned out amazing. High quality build !!!!

Still a big fan of your work. Keep building my brother

Great job man! I can' wait to see final product

Thanks for the video. I have watched nearly all of your videos, and I have to admit you are a talented builder/fabricator. I just have one word to say in regards to your off-road vehicles: fenders. Dude when you finally take them off on trails you wind up getting so soaked and mud covered you look like you just fell in a big mud hole, instead of of just driving through one. Great stuff, keep em' coming.

Love the project! Always enjoy your update vids.

I was watching part 19 of this series, thinking it was the new one, moments before this dropped. The whole time im having dejavu thinking im sure you've done all this before, untill i realised at the end. I went back to your page and saw part 35.😂😂🤦🏿 btw defo install fenders i been meaning to comment a few videos ago, flare them out like wheel arches. ❤

Incredible build man. That's impressive as heck!

Awesome engineering through and through.

Great job Chris. If it was rocks you were trying to climb I think it wouldn’t have looked back. The logs kept rolling keeping you from climbing. Thanks for the content.

You sure made a great case for split sprockets when you went to gear it down @14:00. Looking good. Hopefully it's going to be a good one on the trails.

You should be able to tap vacuum off the engine to operate the four wheel drive. Also you could have air in your coolant system. Bleed the system from the highest point. If cap/fill is not at the highest point, add a bleeder valve.

Can’t wait for this to be done, also can’t wait to see what you come up with next

I was laying in bed waiting for the upload😂

What a beast mate…well done!…greetings from the UK.

It was a really good Monday for being a Saturday.

awesome,i think i heard that little beast from my house. i still have some super high pressure 5/16th fuel hose if you need it.

This makes me want a full scale Tamiya -Dark Impact. Even more! (comment meant for the CBR reverse trike vid)

I can't wait to see you hit a trail with this. It's an absolute work of art dude.

Great build! Your best yet. Now all you gotta do is keep dirt out of this engine 😁

This is the best build vehicle by you until now. And yes for some added safety to the fuel tank and Engine add some extra roll cages to safe gaurd it incase if the vehicle topples over.

Quick tip: for joining large gauge wires you can use short bits of copper tubing. Apply heat directly to the tubing and melt in all the solder, cover with heat shrink, Bob's your uncle.

Молодец,хорошая работа,поздравляю. У тебя все получилось,интересно было смотреть!!!

Love the new gearing. Would love to see the radiator stay in the front.... I know extra pump.... but still, I really like it up the front. Make it work!!! So excited to see this thing moving under its own power, great work!

amazing work

I always come to watch this channel. Greetings from Indonesia ❤❤❤

Really impressed with the capabilities of it. I want to build one.

You should street legal it things sick good work man, needs a bit more height

Good work.

Knowing that those chains are exposed to objects below them, this means that they need to have protection from them. Chris, that crawler need belly pans to protect them. I suggest that you put those plates as close to them as possible. In that way it will have the ground clearance that you designed it to have.

Finally🎉 been waiting for this for a while now

Love that beast!

The incredible amount of articulation you can have with this chain driven rear axle is fantastic! Have you considered to run the chains inside the trailing arms to the rear wheels so that they are not as exposed? I think that could be a great improvement when climbing difficult obstacles. With the chains inside the trailings arm you could also cover them to totally protect the chains from dirt. To optimize even more, you could fully seal the trailing arms and run the chains inside in an oil bath, that would make them as protected, silent, low friction, low maintenance and long lived they can be.

Need to look into a chain guide, like on a banshee swing arm

Very nice climb 💯

Your truck is really good. Nice job!

Good Work.

I like too see a real off road test ... which may take a crew too film. It is a fantastic build .

I do believe you need more ground clearance underneath that machine. If you plan on crawling over rocks especially. Also need chain guards. Sturdy ones so that when that area gets hit by something it won't derail your chain keep up the good work. And have fun do it

I’d suggest making a compartment for extra chain (lots of extra chain) and chain lube. But sick build been here since the first episode.

I would recommend using an electric dual stage water pump. You can set the flow rate for stage 1 to be lower so the motor warms up faster and set stage 2 to run under operating temps using a 2 stage controller to trigger the phases with relays. Just make a smooth block off plate to replace the finned pump plate (if the electric pressure exceeds the stock flow rate it could cause issues) For the rear sprocket, mill a bash guard like they use on Mountain Bikes. :)

glad to see yo happy bro hard works pad off

Darn thing sounds really good

I think you should consider some mud flaps of some type to keep the front wheels from covering you as well as the rear. It's annoying in some sand rails I've been in.

Making sprocket side guards will help keep shain from popping and keep aligned.

copper tubing for crimp or solder wire barrels. Get a ft' or so of several sizes and it's mighty handy at times.You're welcome.

Oh Boy! Hope to see you at Windrock some day, its a 500 mile trip for me so chances are probably slim😅☮️

Fantástico amigo!!! Boa sorte sempre!!!

Great job!! Chain guards on sprockets

Love it keep it up as always 💘

As long as your going to be thinking anyway, think big.

It's amazing things you build

Fantastic!

Oh man, once this thing is done it's going to be sick! I think we'll need to see a mini-truck showdown between you and the Cars & Cameras mini-trophy-truck build.

Awesome job Chris I understand that you still want to make further additions but awesome job 😊😊🇬🇧🇬🇧🇬🇧🇬🇧

You can also wire up the ECU to the fan relay and have either the ECU or switch ground the relay and turn the fan on or if it has a thermostat you can do the same.. The ECU should kick it on around 220F.. If your anything like me and forget to turn the fan on it will come on automatically and save your motor.. Love the videos keep up the good work..

Been waiting for this.