I want to share with you this my experience step by step.
In another 3d i’ve explained how i wanted to build a custom tank to be placed behind my rear bumper. Of course i’ve got a car!
All i had to do was removing the rear bumper and i did it this morning
Here’s what’s behind it:
My susprise was to find out my absorber are made of the same synthetic material of all other absorbers (i thought it was made of very thin metal).
As you may notice the left absorber is hanging because 4 months ago a guy hit me and i haven’t fixed my car yet (waiting for my insurance to send me my check ).
I measured the depth of the absorbers and it’s 10cm. The height is 17cm.
Size from side to side of the absorbers is 120cm.
Sorry i’m not used to measure in inches.
This is what’s inside the absorbers.
I think i’ll remove those brackets using a grinder, i’ll use the two nuts soldered on the flat metal (just upside the absorber brackets) and weld another 2 nuts on the bottom (so in total i’ll have 4 nuts) so i can fix the tank to the car in 4 points.
I went to a shop to buy some iron stuff… i was looking for a rectangular shape thing but they were too small. The only good piece the guy had was full of solder points, holes and poop on it… so i decided to take a round pipe.
He had an already cut piece. Otherwhise i was constricted to buy a 6 meter piece (over 100 bucks).
I also spent the morning finding some iron fittings to weld on the pipe for the line tubing.
I’m actually having a hard time finding some 5/8 fittings and connectors… it’s impossible to find them here… i can only find 1/2", 1" or 1/4"… now the problem will be when i’m getting the solenoid.
I’ve bought one from ebay which has 5/8" orefices… damn!!!
Well, for now this is the situation… any comment as always is appreciated!
The round pipe is much better for a tank than rectangular.
You can buy rounded “buttweld” end caps for the pipe.
The fittings or “bungs” for the tank only need to be as big as the threads on your valve - probably 1/2" NPT. There is no 5/8" NPT so if you wanted bigger it would be 3/4" NPT.
What diameter pipe is that? I can figure how many gallons if you want…
It’s turning out to be such a pain in the a**!!!
BTW i like challenges!!
I cut the bigger bracket on the left, the other two are fine!!!
I even had to bend the round section of the spare tire… i think i’m not gonna use it… so i can use that section to place the K3.
I’m having some problems with the bumper because plastic in the middle is a little more “inside” from the rest of the bumper, just where the license plate is. That touches the pipe and doesn’t allow me to screw the bumper on the bottom side…
Now i have 2 options…
try somehow to bend the pipe in the middle, just to make it a little flat just where the license plate goes…
build some extension brackets for the lower screws of the bumper… i think 1" should be enough and nobody will tell the difference.
As i said i’m not confident with inches… i’ll try to convert measurements online…
Let’s see…
Pipe is:
47.24 long
3,94 OD
3,7 ID
0.118 wall
Since it says 5/8" orifice i went into panic mode.
If this tank is not enough i’m gonna add tanks all over the place. My car has small spaces all around, not just big ones… i’ll probably build other tanks if it’s not hard
Let’s suppose i’d like to use this tank alone, how long would a blast last?
2.2 gallons.
The horn will fade pretty fast.
I’ve seen videos of people getting a full 5 seconds out of 5 gallons.
So I dunno - maybe a second per gallon…?
So that must be 100mm x 3mm wall pipe.
To give you an idea - it’s 54.6cm of pipe per gallon.
).
sorry, couldn’t resist. 