@12:11 in the video I show a system diagram. To deflate you would add a dump valve by the interior gauge. I use Apex tire deflators each tire individually is like 10 seconds so it is a fairly painless process and so didn’t see the point to adding deflate abilities to the system.
Don't know for sure, but that tire looks like a 315/70R17 BFGoodrich KO2, with a load rating of 2,915 lbs. and a max pressure rating of 65psi... Don't know for sure what specific year your Toyota is, but looking it up online - a new Toyota Tacoma SR weighs 3,915. If you take 3,915 pounds and divide it by 4 (tires) it averages out to 978.75 each tire has to support - statically. If you take 2,915 pounds and divide it by 65psi - That's 44.85 pounds of support for each '1' psi air pressure. Then take that 978.75 required weight support and divide it by 44.85, to get a 22psi per tire MINIMUM air pressure to support your vehicle statically. Now take into account that while driving, even off-road on rough trails - While you may be driving at slower than freeway speeds, your vehicle will transfer MORE THAN 978.75 pounds on any particular tire(s) as you drive through, accelerate, brake and/or stop going through turns. With all THAT said - Airing YOUR tires down below 22psi while offroading can lead to premature wear on the low-end of the anxiety technicolor dreamscape to tire failure on the high-end of the WTF Was I Thinking Trouble Code. As an aside - I respect that you went to the trouble to install a quick-disconnect on all four corners and use short hoses instead of a ridiculous rat's nest of 20 foot lines - - AND that your tires are actually MORE than twice the height of your rim's diameter. (I 'HATE' those Brodozers. Those Pavement Princesses. Those Wannabe Mud-Terrains... It's the smell, if there is such a thing. I feel saturated by it. I can taste thier stink and every time I do, I fear that I've somehow been infected by it. It's repulsive, isn't it?) The only OTHER thing(s) I might suggest is that you purchase or fabricate a set of dust/dirt/mud cap for those Female Quick-Disconnects you have in each fenderwell - -And that ARB compressor, while being water-resistant is not water-proof.
Interesting point. Weight distribution is not 50/50, but I think I get what you saying. I go down to 12 psi in the rear; my rear is very light. The tires are E-rated too, so they aren't deforming much at 12 psi. I spent my whole afternoon thinking about why max load rating of a tire divided by max psi would yield lbs 1 psi can support. Can you elaborate on why this is? I'll certainly continue to think about it and get back with you.
No, but @12:11 in the video I show a diagram of the system. Draw yourself a diagram to help work out what fittings you'll need. I used 3/8" air hose with push connect fittings; I'd try to stay away from NPT fittings where possible bc they're expensive and more prone to leak. Use bulkhead fittings to mount through things.
@@sicchuckie So funny story I was in the Corps, just 4 years; but drove trucks so I know what a M353 is. They are so small and short you couldn't tell it was behind you most of the time, as least not behind the big military trucks.
