While your idea of a dual (multi) pass radiator is sorta right, that only really applies when using quite a bit higher flowing water pumps. Without the use of high flow pump, a dual / multi pass radiator can actually cause a degrade in cooling performance because of the flow loss that a dual pass radiator causes. The high flow pumps are needed to compensate / overcome the losses. Regardless of that though, even you are running high enough flow pumps, you lost much (if not all) of the advantage that you might have gained by the way that you put together the split tank side. You have a pretty large internal bypass in that side between the two tanks. When building dual / multi pass radiators, the correct way is that the first tank be fully welded all the way around the header on all four sides (front, back, two ends), then the second tank added after. Since it appears that you welded the tanks in a buttjoint configuration to the header flanges, you now have an area the width of the header and the height of the flanges that is open between the two tanks that water is going to flow through. Since fluids take the path or least resistance, as much water that can is going to just flow from one tank to the other rather than go through the core itself and back.

Sweet video! My buddy Joe Simpson shared this on facebook and now you have a new subscriber :)

I like the post flow on the aluminum. just a habit! keep up the great work.

Good job 💪💪💪💪💪 wait for more video of you 💪

Dude I love your work!!!!

Awesome vid man ✌️

Fuck yeah dude! This is exactly what I needed ! Thanks man

Класс. Но с закругленными бачками смотрелось бы симпатичней

I have a question, why did you choose to use the female ORB fitting instead of just welding a male -16 AN fitting on?

Great job bro.. nice

where do you get your cores from?

Perfekt 👍

Nice.

How you like that HF 3 in 1 tool? Btw nice Bteam sticker🤣

where do i get the core radiator?

I have a question and a comment about this video. My question is why not make a single tank with a divider or dividers instead of building two tanks and welding them up and then welding them together which to the armchair fabricator seems like you are increasing your chance for leaks and future cracks etc. Also instead of a hole-saw which leaves kind of ragged edges and the saws them selves wear rather quickly not use a “Greenly” knock-out tool. Knockout tools make nice distortion free holes in sheet metal, admittedly they can be a little expensive but no more so that few hole-saws of the same size. Now for the comment but first I do enjoy the overall content of your channel but please stop or severely slow your camera movements because as you were moving the camera in and out or side to side I and my girlfriend who was with watching the video we were both starting to get feel the effects of vertigo because of them. I am not trying to kick you in the nads actually quite the opposite because if my girl and I were feeling that way how many other people might also be feeling and or thinking the same thing. Keep doing what your doing and have a great day.