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04-20-2017, 06:28 PM | #1 |
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Join Date: Jul 2003
Location: Sudbury, Ontario, Canada
Posts: 734
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C-20 air line size....
On my C-20 I have a single 1/4" line running from my tank and splits to 4 manual paddle valves inside the cab, then 1/4" out to each bag.
I usually air up 2 bags at a time, so front together, then rear together. If I went to a 3/8" line from my tank then split to the 4 valves would it increase the speed much? Seeing how the single 1/4" line is feeding 2, 1/4" lines to fill 2 bags. I thought allowing a bit more supply to the valves, there would be more volume available and possibly speed it up a bit. I'm not looking for a massive speed increase, just looking to see if it's worth my time to do it. I already have some 3/8" DOT line here and would only need 2 fittings and a bit of time on my lift. I'm running 2 Viair 380 compressors into a 4 gallon aluminum tank, that runs to the 4 manual paddle valves, then to the bags and some gauges. Pretty basic setup but it works. The attached picture is aired to max height and aired out. With my setup I can have a catastrophic failure and still be able to drive it. At rest, the axle is on frame.
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Mike Email: Click here to email me -- 2019 Silvedrado 4x4 1970 Chevy 3/4 ton, 396BB, on air bags |
04-20-2017, 08:37 PM | #2 |
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Join Date: Jul 2009
Location: San Jose Ca
Posts: 2,871
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Re: C-20 air line size....
Are the manual valves 1/4''? If they are then changing the line size isn't going to make much of a difference as the restriction will come from the valves.
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David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
04-20-2017, 08:45 PM | #3 |
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Join Date: Jul 2003
Location: Sudbury, Ontario, Canada
Posts: 734
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Re: C-20 air line size....
Yes the valves are 1/4". When I air up the truck I am using 2 valves at a time. So 2 valves are pulling from a single 1/4" feed from the tank. Whereas if my feed line from the tank up to the valves is 3/8" then from the 3/8", splits into the 4 valves, I'm then feeding both 1/4" valves with the 3/8" line.
Curious if anyone tried the difference between a 1/4" feed line vs a 3/8" feed line when operating more than one valve at a time.
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Mike Email: Click here to email me -- 2019 Silvedrado 4x4 1970 Chevy 3/4 ton, 396BB, on air bags |
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