budget eBay bump stops - Mini 4WD Trophy Truck Project - Part 14 

Radiator should never see more than 30 lbs...😂...most only have to hold 20 psi...the cap usually says what it's rated at like 15 lbs...😬

You changed the radiator from an up and down flow to a cross flow, so your inlet and outlet should have been high and low on the tanks. Also the drain petcock needs to be low on the tank, not mid level.

I believe you'll be better off if you run a bar from bump stop to bump stop across the top. That'll control them from being pushed out of alignment, and it will help the frame from flexing upward as they bounce around too. Which will help maintain front wheel geometry as well. As far as the shock stiffness, and sitting the bump stops that's going to have to be set when you have everything on it, fuel, water, both passengers possibly a cooler for cold drinks possibly. But definitely fully loaded and sitting at ride height on the ground with tires inflated to 6 to 12 psi I would think be about right with the combined weight of everything and the size of the tires you have on it . Too much air and it's going to be a bouncy rough ride, and won't have a full contact patch on the ground as it should

Put a rubber lip around that shroud, between that shroud and radiator. Otherwise the vibrations will rub your shroud right through the radiator

I'm honestly surprised that you don't have an old lawn tractor as a mini yard jockey

"fihisn cvoss bvacing" and "Gus tank" had me rolling, lol. I love how builders write things when they're in a hurry.

Dude, i aspire to fabricate on this level

15 psi max... the cap is supposed to let go at 15psi

Amazing work from a small shop space, incredible

I think you should redesign coolant system : Fittings on the radiator - liquid's usually flow from fittings to fittings, so you reduce cooling capacity of this radiator by around half . Placement - rocks, dust in the radiator not helping with cooling, hot air and coolant fums not helping with fun . With radiator with presure valve that much lower than engine, you may cook out all coolant from engine before you even notice that .

A turbo k swap and sequential trans would make that new buggy a riot to drive !!!

I think your radiator inlet and outlet need to be repositioned. With the inlet only half way up the tank you will not be using the whole tube sheet to cool. It will make a giant air bubble in the top half of your radiator. Also, with the outlet not being the lowest point the water below the outlet may stagnate and not do much cooling. I think you need the inlet at the top and the outlet at the bottom.

24:44 ah, rod end in bending, welcome back my friend

What ever you makes its perfect fit for your truck,,,,you are the best one i ever heard to the world best of best what ever you make.. keep going❤❤❤❤❤❤❤❤👍👍👍🤩🤩🤩🤩🤩🤩

Yay Chris has posted! ❤

You should pressure test with water, NOT air. Air is like a spring, it explodes things. Water will simply gush out a bit. Glad you didn’t get hurt.

Woa thought for sure the radiator was gonna pop 😅 great skills award goes to Chris Fabricator Extraordinaire ! Love this build cant wait for testing😊☮️

Man I wish I had your skills. Absolutely amazing work. I bet it’s so rewarding to finally hop on and rip it! Or take family to n rides. You’ll never need to buy any toys, just make them all!

So happy to see your working on this project again I hope you had a good break from it, I can't wait to see it when it's done

Chris, before bending aluminum, you must always, always, ALWAYS anneal the aluminum. There's a lot of different ways to determine the right temp to heat it to, but this is what I've been taught. Lite your oxy/acetylene torch with only the acy, wave the torch over the area to bend, and cover it with soot. Then turn the oxy on and heat the aluminum until the soot disappears. Let it cool, then go ahead and bend it. It won't crack and your bends will be nice and smooth.

Car projects are always fun to watch. My only wish is to have enough money to do some builds of my own.

Awesome the build is looking good great to see you back on it love the dashboard design still flows with the design 🥰🥰👍👍

The fans own housing makes for an excellent fan shroud. Your fabricated fan shroud only inhibits free air movement when the fan is not on.

Hi Chris, I have to point out the fact that the inlet and outlet for the radiator aren't spaced apart far enough. If that's a 3 core radiator, there should be 3 different sections inside and the hose spacing is going to only let it use 2 of them. Might cause problems later. But keep up the great work, I wish I had half the talent you have.

Also ,what ever you face like worry things you can solve it easily,also you are a smart n handsome guy.....lov it whatever you made it🤩🤩🤩🤩🤩🤩🤩👍👍👍👍👍

Just thought I'd add maybe try neoprene instead of the chain roller tensioners.. kinda like a dirt bike chain skirt..if you can't get ahold of neoprene I've used a good hardwood like oak or hickory and works good for long chain and totally kills the loud noise that the chain rollers make.

gotta love crossing things off a list

Thank you Chris, love your content ❤

The bigger the better the projects the more it cost to make these projects...Great work...

sweet!!! ive been waiting for you to finish this project! lets go!

Always glad when you have a new video can’t wait for the next ! I made my own electric fan housing for my street rod ! Yours looked Great

Chris a possible tip that might help I watch a lot of fab type of videos and one major thing I have noticed that makes Welding aluminium especially better is to clean it well with something like acetone or brake cleaner or carb cleaner before you weld, getting off any contaminants same thing with steel etc but in that case to a slightly less benifit. Doing great as usual Chris still extremely proud of you! Tony from Western Australia 🇦🇺

I saw that homemade iron plug gun happening before it happened 😂

such a pleasure to watch.

Hello buddy, I'm from Donbass, I often watch your channel, it's very interesting, everything doesn't bother me, I make a drive chain, I recommend making a drive from grenades, it's reliable

It's looking SO COOL. Love this buggy. Can't wait to see it ripping.

I love your work 😊❤ these would be great on the South African outdoors

Missed this project took a break on mine two bc I wanted to build it while watching this 😂

Coming along awesome, its going to be a ripper!!

I got nervous when you leaned over that plug with 50psi behind it.

I do like those tires 👍👍

I would love something that size for my vehicle ❤ wow Clean hits and small space Perfect

Dude this is your best build ever. Can not wait to see how well it does.

1 inch angle iron pieces would extend your bender for lightweight aluminium panels.

For the radiator you can also add an air scoop if you put a body on it

Good progress made Chris. Well(d) done! 👍😁👍😁

Do your thing.. don’t explain to much.. people will love it anyways. I follow for years now and I still like al your work

Can't wait to see the next video! Amazing as always!

Looking good Chris!

Thanks!

Really quite suprised you haven't built yourself a better sheet metal bender. It wouldn't take long to make a stronger, longer more versatile version and let's face it it would be stupidly easy for you. That way you'd have it everytime you needed it and make such things so much easier. Just need to make something that you clamp to your work table when ever you need it. Also a better belt sander and a few other workshop necessities that it's well inside your abilities to build and there loads of videos on RU-vid for you to get ideas from. The work you do iis amazing it just seems like your trying to save time or just want to build the things you like but it's causing you problems and time and effecting your work flow etc. It'd make quite a interesting series of videos as well. You showing what tools, equipment a shop needs and how to build the things you might need. Like a video on your pipe cutter, a better pipe bender, the sheet metal be der, belt sander, grinder, the jig you use to hold the pipes in place and I'm sure there's plenty of other things that a shop needs and would help you with your work. I honestly believe it'd really help you to have these things and especially your work flow and consistency of builds.

This is the coolest thing. I cannot wait to see it fully skinned and looking like the bigger trophy trucks. Your skills are friggin awesome.

If your bending aluminum. Rub dove bar soap on it then heat with a torch when the soap is burnt it will bend without breaking. I let it cool before bending as well

Chris, WD40 the wench cables so they don't rust in place. Or best thing is synthetic rope. I don't trust metal cable, it can snap without warning and has cut people in half, synthetic rope will pull a part, way aafer.

Getting really good at fabricating!!

Name suggestion...the Busa Buggy...

Dang I want one of these!!!!

When I break aluminum 90* I pulse tig weld (no filler) along the break lines which will get rid of any stress cracking that happens.

oh kids, in my time we had dampers these days you need a damper for a damper:)))

You only need to test your coolant system at 20psi. Most coolant systems say not to pressure test above 15psi max

you are amazing ! WOW

Nice

This thing is gunna be a fu@$en BEAST

I was beginning to think there wasn't going to be a video today and, ngl, I was getting bummed out about it. My Sunday is complete now.

work smarter and harder

I think id just used a reducer on the rad lines. Would probably slow the flow of water inside the rad slightly. Not terrible 😂

I definitely want to get a Tig welding setup!!!

As usual great video, big fan, but pressure testing a cooling system max pressure is cap relief valve pressure 15-psi or 104 kPA, you are over pressurizing the system during the test.

Hi Chris, A word about your e-bike spokes. I don't know what the size of your wheels are, you can get on e bay wheelchair spokes. They are way stronger then normal spokes. Just type wheelchair spokes in on e bay. Good luck with all your projects. Jon and Rina from Winnipeg.

If you had the arc Droid make some inch long slots along your bends it will allow you to bend stuff alot easier.

I was thinking maybe mount the original two pipes lower on the front bumpstop sleeves and the brace it across to the where the top of the shock mounts. Would be a tad bit lighter and I think it would look better and be plenty strong

A grinder and paint makes me the welder I ain't 😁

Hi, I watch every video you produce and have much respect for your skills and creativity. I just saw one of those aluminum mini-boats with the jet ski drive trains and thought I’d enjoy seeing you build one from scratch. You’ve created many Motorsport vehicles how bout a water sport vehicle?

you should totally do a tracked vehicle next. whole new way of setting up steering and driveline

If you have side tank radiator you need to have in and out at top of one tank and other on the bottom of other tank

Pro tip is to bend into the score marks it won’t need welding that way typically and ALWAYS ALWAYS fill it w water before you pressure test it if you don’t you just have a Bomb bud

Like Timothy i think it's better to have a bar from top to top of the bump stops, otherwise you will twist your entire frame internally with heavy impacts

👍👍

Chris just a thought when you put the third bit of tubing on the front bump stop looking at it and knowing the force that hits them as I have them on my land rover I do think you need to add a fourth bar on the other side as I do think it will bend up still just at a different angle just like mine did on my land rover when I added four pieces it no longer moves but I had to replace all the tubing as it bent it totally out of shape so I just want to stop you the heartache of having to rebuild the front bump stops all the best from john from Rugby UK.

Did you really mount the pedal controls switch to the torch? Or is it just an on of switch? If you did the pedal control switch, that's genius. And btw all radiators are only designed for 16 psi, at 16 the bleeder pops to relieve pressure it's so you don't detonate anything in the cooling system. It's a miracle you didn't blow up a core with 50psi

👍

I think you should have connected the front bump stops with plate steel and boxed it in it would be strong and not be in the way

Swat bur, gus tank.

no need to test the radiator that high as most caps pop around 12-15 psi, check your cap

This is a kinda weird suggestion but better safe than sorry. I've come across videos (I'm not talking about the fake ones) online over the years where the shaft of a stool went through the seat and then went up the rear of a person. Does your stool have a gas spring? If so then mount a peice of steel between the seat and the mounting bracket.

Glamis Ready 😂

*YOU SHOULD CONSIDER AN ELECTRIC WATER PUMP* to flow water/coolant from the rear to the front. OEM water pump will not be enough

Missed this build, it's going to be sweet! BTW where'd ya get those seats?

It would be awesome if u made one of those with a rotary engine

The radiator is great, but your fan won't push enough CFM. Those cheap 80W fans are week and weren't enough to cool a 850cc engine, so forget your 1300cc will overheat in no time.

Would looked nice if you put 3rd pipe on front bump stops above the first 2 rather then below. 3rd long bar looks ok ish

You should make a fire wall or something for the front if you overheat and that radiator pops your gonna have some hot water all over you

I was almost so sure that the plug was aiming for your nuts a few times!

Should build something for glamis or silverton? and get together with the sxsblog boys!!!

Why would you put the radiator in the front? All that hot air in the summer is going to be like a heater.

most cooling systems run at 1 bar or 14.5 psi then the pressure relief valve opens

Not sure if putting the rad up front is a good idea, just gonna blow hot air on you all the time maybe reverse the fan?

Damn you make it all sound/look so easy

Wish that thing had a turbo K20 honda motor.

You know how you smashed shit in the bike drivetrain? Trying to turn 32" tires with motorcycle chain is going to do the same im fairly confident. Look at the tire size difference. The gearing alone is enough to overstress it, but the mass of the tires is another issue.