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Homemade blowdown tube

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Old Jun 15, 2008 | 03:19 AM
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Default Homemade blowdown tube

I have about 20ft of 5/16" aluminum tubing....If I wanted to make a blowdown tube using this....How would I go about attaching it to the bottle?

Flare the end of it? specific fitting?
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Old Jun 15, 2008 | 09:16 AM
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5/16 is way too small to properly vent a bottle.
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Old Jun 15, 2008 | 12:29 PM
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Blown down tubes are helle cheap why would you waste your time
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Old Jun 15, 2008 | 03:17 PM
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You prob mean 5/8 tubing? Yes, sure you can make your own, oppropriate end fitting and flairing of the tube is you need. Remember though, to be NHRA legal it has to vent out side the vehicle if in the passenger compartment. You could also use braided line and AN fittings if you like and that will be easier to route out side.
Robert
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Old Jun 15, 2008 | 03:26 PM
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Oh dang, that's right..5/8..oops.
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Old Jun 15, 2008 | 03:28 PM
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Default hmm...braided hose

what size hose do you think it would have to be to be legal? -8
i havent got around to getting a blowdown tube yet, and any stock one wont make it to where i want it to go, so i was thinking of making my own so its all one peice and routed how i want, but if you can use hose then it would make it even easier...
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Old Jun 16, 2008 | 04:39 AM
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-8 will work perfectly. Just make sure you have a -8 fitting on your bottle, and hook up a bulkhead fitting to your vent point.
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Old Jun 16, 2008 | 01:42 PM
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thanks jetlag
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Old Jun 16, 2008 | 02:55 PM
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Originally Posted by 89LS1RS
thanks jetlag
I didn't do anything??
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Old Jun 17, 2008 | 12:47 AM
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Originally Posted by 89LS1RS
what size hose do you think it would have to be to be legal? -8
i havent got around to getting a blowdown tube yet, and any stock one wont make it to where i want it to go, so i was thinking of making my own so its all one peice and routed how i want, but if you can use hose then it would make it even easier...
here's what i did with dual blow downs, home made with parts from speed shop. It's a "T" bulk head fitting that goes through the tire well, but you can get the idea and can make hoses to fit what ever route/lenght you like.

Robert
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Old Jun 17, 2008 | 09:36 AM
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oops, i meant thanks to jmill96z, and now to robert56, but thanks to jetlag for starting this thread
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Old Jun 17, 2008 | 10:03 AM
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I know it'snot homemade but we do offer a universal BlowDown Tube

http://www.nitrousoutlet.com/catalog...roduct_id=1116

Just to give you an idea of how we have done it.

-Chris
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Old Jun 17, 2008 | 12:51 PM
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Here is our universal blowdown kit - everything you need including the blow down fitting, burst disk, braided line and threaded end to securely mount in your trunk - $39

http://www.dynotunenitrous.com/store...p?idproduct=86



Dean
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Old Jun 17, 2008 | 09:08 PM
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ok, 32.95 for 6ft -8
27.95 for 180* endura fitting
15.88 for 90* endura bulkhead
8.50 for straight endura hose end
85. 28 total, and thats getting the better endura fittings and 6 feet of hose
Thank you summit....duh
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