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Old 10-27-2007, 11:47 PM   #1
hotrodhomi
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bag speed

does anyone know where I can find a video of a bagged truck in action with 3/8" air line and valves compared to 1/2"? I'm trying to determine the size I want to run to get my desired speed. I want it to be fast, but not uncontrollable. Also, how many feet do I need to buy. I plan on running 8 valves.
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Old 10-28-2007, 01:31 AM   #2
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Re: bag speed

You want 3/8" valves. 1/2" are basically uncontrollable for precise movements. Length depends on where you mount the tank/valves. Study the diagrams on ***************** and figure out where you will put everything and add ten feet to that.
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Old 10-28-2007, 03:24 AM   #3
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Re: bag speed

look here, or search more in the suspension category~
http://67-72chevytrucks.com/vboard/s...ighlight=video
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Old 10-28-2007, 07:10 AM   #4
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Re: bag speed

This is mine with 3/8 valves and lines.
http://www.youtube.com/watch?v=AA7lSpPhuxI
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Old 10-28-2007, 11:21 AM   #5
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Re: bag speed

Ive seen quite a few trucks running 3/8 Valves and 1/2 lines..It seems like a good setup to me and its what ill be running..Not too violent and not too slow..Its actually a standard for what the local chop shop runs around here, unless of course the customer is set on a specific setup.
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Old 10-28-2007, 04:17 PM   #6
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Re: bag speed

In my S-10 I ran 3/8" valves and 3/8" lines and they were WAY too slow. In my Accord I ran 3/8" valves and 1/2" lines and it was prefect. In my '69 shorty, I plan to run 1/2" valves and lines.

If it is too fast, you can always add a ball valve and slow down the air. Its pretty simple to slow it down, but you can't make it go any faster.
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Old 10-28-2007, 08:27 PM   #7
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Re: bag speed

Quote:
Originally Posted by los-lowrider View Post
This is mine with 3/8 valves and lines.
http://www.youtube.com/watch?v=AA7lSpPhuxI

Sweet!
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Old 10-28-2007, 08:44 PM   #8
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Re: bag speed

It all depends on how much p.s.i you are going to run. I'm running 120psi on nitrogen with 1/2 valves upfront and 3/8 valves on the rear and they lift at the same speed since there is not that much weight outback. Also, I would recommend using rocker switches instead of toggle switches since they are easier to control your dump and fill speed.
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Old 10-30-2007, 02:58 PM   #9
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Re: bag speed

I think copperchevy is absolutely correct, pressure is what makes it fast. Today I hve had time so I took some videos.

http://www.youtube.com/watch?v=q_jZdy7j3bU

http://www.youtube.com/watch?v=Il_iHCS24K0

http://www.youtube.com/watch?v=oAZEkfN8Llk
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Old 10-30-2007, 08:22 PM   #10
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Re: bag speed

Watching them videos remind me why i got nitrogen. Never liked compressor noise. Nice truck by the way LOS.
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Old 10-30-2007, 08:27 PM   #11
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Re: bag speed

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Originally Posted by copperchevy View Post
Watching them videos remind me why i got nitrogen. Never liked compressor noise. Nice truck by the way LOS.
I'm a noob on this airbag stuff, can you elaborate a little. How does it work?

Albie
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Old 10-31-2007, 01:17 AM   #12
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Re: bag speed

I have a york. Is it going to be loud like that?
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Old 10-31-2007, 01:27 PM   #13
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Re: bag speed

I'm a noob on this airbag stuff, can you elaborate a little. How does it work?

Instead of having a compressor and small tank hooked up to your valves you hook up a nitrogen bottle with a regulator. Just like a bottle used with a mig welder except its nitrogen. You have to buy a regulator and either buy or rent a bottle.. I rent mine at an Etox gas store and exchange it everytime I'm out. Since i don't play with it that much i exchange the bottle out about every three months for $20 bucks. Heres a picture of my bottle. Their are several size bottles to choose from.
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Old 10-31-2007, 02:01 PM   #14
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Re: bag speed

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Originally Posted by hotrodhomi View Post
I have a york. Is it going to be loud like that?
No louder than your A/C compressor...
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Old 10-31-2007, 08:18 PM   #15
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Re: bag speed

Quote:
Originally Posted by copperchevy View Post
I'm a noob on this airbag stuff, can you elaborate a little. How does it work?

Instead of having a compressor and small tank hooked up to your valves you hook up a nitrogen bottle with a regulator. Just like a bottle used with a mig welder except its nitrogen. You have to buy a regulator and either buy or rent a bottle.. I rent mine at an Etox gas store and exchange it everytime I'm out. Since i don't play with it that much i exchange the bottle out about every three months for $20 bucks. Heres a picture of my bottle. Their are several size bottles to choose from.
Oh I see, I'm not sure if that would be economical for me. When I get mine done I'll probably be playin with it all the time.

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Old 10-31-2007, 09:02 PM   #16
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Re: bag speed

get 3/8 fills.... I have 1/2 and they are too fast
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Old 11-01-2007, 06:25 PM   #17
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Re: bag speed

How much pressure do you have on a full nitrogen bottle?
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Old 11-02-2007, 12:49 PM   #18
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Re: bag speed

I had 1/2" fills and 3/8" dumps with 1/2" lines on my 88. trying to set ride height was a pain. I used all 3/8" valves and 1/2" line on my 71 and it is a lot more controllable but still fast.
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Old 11-02-2007, 01:04 PM   #19
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Re: bag speed

i have mine on 1/2 ups, 3/8's dumps with 5/8 line on 200 psi. i think it is slow. i have full control on the up but the dumps can be too fast, even with the reducers i have. my truck can get off the ground easily at 250 psi btw.
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Old 11-02-2007, 01:19 PM   #20
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Re: bag speed

So it sounds like 1/2" for the fills and 3/8" for the dumps. Or should it be 1/2" for both and then use a needle valve to control the speed of the dumps?
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Old 11-02-2007, 02:09 PM   #21
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Re: bag speed

Quote:
Originally Posted by edflores View Post
i have mine on 1/2 ups, 3/8's dumps with 5/8 line on 200 psi. i think it is slow. i have full control on the up but the dumps can be too fast, even with the reducers i have. my truck can get off the ground easily at 250 psi btw.
I used 5/8 lines on my Elky ,that was just rediculous.

Quote:
So it sounds like 1/2" for the fills and 3/8" for the dumps. Or should it be 1/2" for both and then use a needle valve to control the speed of the dumps?
IMO 1/2" valves are overkill unless you're interested in hopping.
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Old 11-02-2007, 03:03 PM   #22
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Re: bag speed

How much pressure do you have on a full nitrogen bottle?

Between 2600 to 2900 psi. Having nitrogen allows you to control your fill speed simply by adjusting your regulator. Also, I screwed on a reducer fitting on my rear dump valve to make it fall real slow. From 3/8 to 1/4.
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