Home Made 4WD Mini Trophy Truck Build - Part 22 

We seriously need more people like this guy, I can't get over how he makes all this stuff himself, cant wait to see everything after its painted 🔥💯

Rather than using welded bolts, buy a bag of tiny rod ends and put a nylon bushing through the hole in the gearbox size lever arm. Like m5 or m8 thread sized ones (they are stupid cheap). That will improve the clickity clackity sound and feel of the linkage considerably. The day i graduated from bolt pivots to those, i never wanted to go back. I've basically upgraded every linkage in all my heavy duty equipment with rod ends because it makes the whole operation so much better.

Your brain is so full of great ideas, I really love watching you solve issues as they arise,, you are making young people look good and gives me hope for our future

On your cooling lines, 1. At the end of the cooling pipe there needs to be a ridge for the hose clamp to butt up against. To prevent pressure from blowing the hose off. 2. give the red multipurpose hose a try, it is more durable.

Badass linkage - looks so cool working. I would suggest getting some beads on the tubing so the hoses don't blow off...A couple weld blobs would probable work.

I have to agree with some of the other commenters, add kind of a barb/lip around the steel tubing for the radiator lines, otherwise it is possible, even with the clamps really tight for the pressure to potentially blow the lines off. Might not happen at idle, but could happen going down the trails. Also, this time get a temperature probe that fits in the radiator fins to kick the fan on as needed. Also get a good water temperature gauge, probably a digital/LED one and not a mechanical analog type that could possibly bounce around on rough trails. That way you know if you need to allow it to cool down. Should help avoid catastrophic engine failure like what happened on the CBR1000 project.

I don't watch Chris because he nails it the first time, every time. I watch Chris because he shows what problems he has ran into building this or building that and shows us the solution he has came up with to solve said problems. And he takes us along for the upgrades he makes after lightly thrashing it and identifying any weak points in the design.

The closed loop system will negate the gravity on the system…but pumping the extra distance will make the system have a little more friction…I would want to bevel the edges of the 1” tube to prevent eddies and turbulent pressure on the fittings…also I would use double pipe clamp where ever you can because the pipes done have barbs on them…as alway great build it’s looking great 👍

This is proper engineering!!! This is the kind of problem solving i love to do and watch. Congrats dude you are the man.

Chris. I'm an electrician, for those water lines, they make aluminum EMT from ½" up to 1½". It's not that expensive, easy to bend, would not rust, much lighter, and would dissipate heat way more. I'm thinking 1" would be perfect in place of the steel tube. Just a suggestion. Great job BTW. This one is gonna be sick bro!

Thanks ! Your idea of adding another pivot point to fix the flex of the arm at

Can’t street the “from scratch” part enough

That linkage turned out RAD. I think u made the right calls. Simple & durable

The thing I enjoy most about your channel is watching you come up with unique solutions to unique problems.

You're gonna have to use an extra pump for the coolant for sure. Well(d) done so far Chris! 😁👍

This could be the most impressive thing I’ve ever seen on RU-vid

You're right about the pump being a loop, the orientation of the truck on a hill won't mess with it's performance... on the other hand what will affect the performance is the friction loss from the length of pipes the coolant has to go through. A Hayabusa definitely has less piping to push the coolant through but there must have been some excess of power in the water pump. Maybe once you have the engine running you could put temporarily splice a fitting into the line with a flow meter and see if it's reasonable compared to what the engine needs. Should be a relatively quick check if you do it that way. Great video man you're a bona-fide engineer at this point

Iv been following this dude for soooo long now its crazy. I came in when he was doing his reverse trike thing. Love this dude channel. Hope he never drops ❤😅

Never a dull moment when you have a video come on we learn more and more on how to build linkage you sure have lots on this build . Your a wize at building anything you put your mind to

That thing is gonna rattle like crazy off road. I love the creativity of these projects though!