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Your thoughts on the Air Zenith OB2 Kit and tank location?

BloodMoon

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Anyone try the Air Zenith on board air kit it has a 300PSI 5 gallon tank, 200 PSI / 4.25 CFM compressor, and of course all of the electronics, gauges etc..
link: http://shop.air-zenith.com/dual-ob2basickit-1-1.aspx

I have unfortunately taught myself the "buy once cry once" rule, and that is leading me to that setup.
I researched the Viair line, nothing wrong with them - but I cannot decide between PSI or CFM... Air Zenith has both!

I am going to be filling tires, running air tools, lockers may be in the future and the mandatory air horn...

So, What's your thoughts on the product/kit - or do you recommend Viair over it? Other choices?

As for tank location, I am running a dual exhaust, with no crossover; the exhaust dumps right before the rear axle.


I am thinking of placing the tank directly in front of the fuel tank; above the rear axle - going left to right. or directly above the mufflers - left to right




My concerns are;
1: Is it going to be too close the rear axle, where suspension compression may hit the tank,
2; will the heat from the exhaust be bad for the tank? IE: cause it build excess pressure (fix by installing a 225+/- psi relief valve?)
3: will the heat weaken the tank?

Other possibilities for tank location:
Maybe it can fit inside the engine compartment - over the drivers wheel well?
I would rather not put it inside the truck...

I am willing to learn! Any and all experiences and suggestions are appreciated!
 
I called up Air Zenith and asked them about mounting their tank next to my exhaust, they said it would not be a problem, They advertise their tank as "Burst Proof" not sure what that classifies it as, but I thought I read somewhere that it was like an 800 PSI burst rating it had, anyways - the tank is a 300 PSI tank and i'm only going to push it to 200 with a 225 or 250 pressure valve.
So 1 of 2 things will happen:
1. the heat builds excess pressure in tank, which the safety valve will bleed off.
or
2. the heat will weaken the tank but that should be unlikely as aluminum doesn't melt until 1220 degrees F, I'm going to see if I can get a decent laser temperature gauge and see what temp my exhaust hits, I'm thinking less than 500 F, ( I hope...)

I talked to a guy who sells both Viair and Air Zenith and he recommended the Viair 444C; anyone try this compressor?
 
I ran my crossover from the passenger side exhaust directly under the aluminum trans bellhousing. There is MAYBE an 1/8" of clearance. It will not affect the aluminum at all. Aluminum is far too efficient of a heat sink, especially when you are talking that far back.
 
My main concern with your mounting location is how to get the air lines to the front of the truck from the tank. If you use plastic line, I would not use the frame rail if your exhaust goes around the transfer case inside the frame. Gas engines have high enough exhaust temps that you need to keep the plastic more protected from it. You will see the highest temperature from the exhaust while pulling a hill on the highway, and there won't be enough airflow inside the frame if the line isn't far enough away from the exhaust.
 
I have an older air-zenith compressor on my dodge. Its lived mounted between the frame rail and bed floor for around 9 years. It has seized up a few months back, but I can't complain it's been used and abused pretty hard. I run a 110-145psi switch on a 5 gallon tank. They're mounted about 5 feet apart, I used a piece of 1/2 copper to extend line feeding the tank. I mainly use it for my train horns, but I have run air tools off it. Make sure your electrical system is to snuf, they pull around 80 amps running under full load. I usely leave the truck running if I'm using a lot of air.

I will say that once I have the money to get it. I'll be buying another one. My stepside will be getting one aswell.
 
My main concern with your mounting location is how to get the air lines to the front of the truck from the tank. If you use plastic line, I would not use the frame rail if your exhaust goes around the transfer case inside the frame. Gas engines have high enough exhaust temps that you need to keep the plastic more protected from it. You will see the highest temperature from the exhaust while pulling a hill on the highway, and there won't be enough airflow inside the frame if the line isn't far enough away from the exhaust.

I was thinking about that, I ended up ordering a heat sleeve to run the line through it, its got a like a 1200 degree rating if i'm not mistaken.
 

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