HighLUX Posted September 10, 2012 Share Posted September 10, 2012 Progress is looking sweet Nick. I take it the holes between the 2 main chassis rails are for the radiator lines? Quote Link to comment Share on other sites More sharing options...
KKtrips Posted September 10, 2012 Share Posted September 10, 2012 Hope this isn't a set of daft questions but whats are the cert requirements on air tanks for bags? Do they have to be certified every 10 years like LPG tanks? If they do - does that mean that the chassis has to be tested? Also does the strain of the air pressure inside the chassis whilst flexing become a potential issue? Quote Link to comment Share on other sites More sharing options...
Spencer Posted September 10, 2012 Share Posted September 10, 2012 Dont think its any issue KK its only say 150psi, cars etc have factory bags and the tanks are never tested, its such low pressure and doesnt blow up so big whoop. I guess my only long term concern would be rusting out the chassis, even with a water trap shit loads of water will get through (unless you buy a $$ trap and run a decent length of hose to it), hopefully it has a drain. Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted September 10, 2012 Share Posted September 10, 2012 maybe have an in-line oiler? Quote Link to comment Share on other sites More sharing options...
Ned Posted September 10, 2012 Share Posted September 10, 2012 Luckily you can use the bags to lift up one corner so you can have a drain on the opposite corner of the rails to drain water from them Quote Link to comment Share on other sites More sharing options...
KKtrips Posted September 10, 2012 Share Posted September 10, 2012 Dont think its any issue KK its only say 150psi, cars etc have factory bags and the tanks are never tested, its such low pressure and doesnt blow up so big whoop.True - even though I wouldn't call 150psi low pressure - 150psi being let loose in a hurry could cause some damage - but I get your point that they are not exactly "high" pressure - in saying this tanks are not normally a stressed member either. Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted September 10, 2012 Share Posted September 10, 2012 iv seen PVC tube pumped up to over 100psi. this will be fine. to complicate thingsthough.. I just did some googling. pressure in an lpg tank is only approx 165psi ( depends on ambient temp and gas mix) Quote Link to comment Share on other sites More sharing options...
Spencer Posted September 10, 2012 Share Posted September 10, 2012 Yea but LPG can go boom, hence the cert process. His chassis is thicker than most bag tanks you get over the counter, its not going to blow out Ned the bags will go down when you drain the tank Quote Link to comment Share on other sites More sharing options...
Ned Posted September 10, 2012 Share Posted September 10, 2012 haha, stupid Ned Though if you lean it to a far corner with the drain now being the lowest point, and the tank is still compressed to 150psi and you open up the drain, it will fire all the water out pretty quick...? could work? i don't know. I'll stop talking now and go back to admiring the sweet build! Do you still have that wooden floor? Why use a wooden floor? Looks like your metal working skills are plenty good enough to make up a floor, surely....? Or am i missing something? Quote Link to comment Share on other sites More sharing options...
durty Posted September 11, 2012 Share Posted September 11, 2012 because wooden floor is ballin I recommend polished matai Quote Link to comment Share on other sites More sharing options...
Spencer Posted September 11, 2012 Share Posted September 11, 2012 Spamming up this thread, but the air moves the water out Ned just like on your compressor at home Anyway always look forward to these updates man, love the work that goes into these videos Quote Link to comment Share on other sites More sharing options...
Bistro Posted September 11, 2012 Share Posted September 11, 2012 been watching this for a while and its good to see it all coming together!! Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted September 11, 2012 Share Posted September 11, 2012 because wooden floor is ballinI recommend polished matai I reckon ply with a veneer of something nice looking. Quote Link to comment Share on other sites More sharing options...
Dell'orto Posted September 11, 2012 Share Posted September 11, 2012 Good to see it finally come together Nick. You should do pneumatic opening/closing doors too Quote Link to comment Share on other sites More sharing options...
340i Posted September 11, 2012 Share Posted September 11, 2012 Progress is looking sweet Nick. I take it the holes between the 2 main chassis rails are for the radiator lines? thanks. yip, thats correct. i cut them in back when i initially built the chassis, and have since started the stainless piping but didn't bother putting it in for the video. i now also need space for the piping for the water-air intercooler, so need to make some more holes somewhere Hope this isn't a set of daft questions but whats are the cert requirements on air tanks for bags? Do they have to be certified every 10 years like LPG tanks? If they do - does that mean that the chassis has to be tested? Also does the strain of the air pressure inside the chassis whilst flexing become a potential issue? the only requirement for air tanks that i know of is that they must be mounted securely so they don't break off and become a projectile in the event of a crash, so i should be all good. it'll never see more than 200psi and from memory i built the whole chassis from 5mm thick steel, so its nicely overkill in the strength department Dont think its any issue KK its only say 150psi, cars etc have factory bags and the tanks are never tested, its such low pressure and doesnt blow up so big whoop.I guess my only long term concern would be rusting out the chassis, even with a water trap shit loads of water will get through (unless you buy a $$ trap and run a decent length of hose to it), hopefully it has a drain. yeah this is true. my plan is to add drain bungs under the chassis and also once all the chassis welding (there's still more to do...) is finished, I'll coat the inside of the rails that hold the air, so that it doesn't rust. I've spoken to a guy that built hotrods and bagged rides for years and his professional opinion was that i didn't need to do anything because any "rusting" will be incredibly slow and not cause any issues in the life of the minitruck. The internal coating is just a peace-of-mind-thing for me. I imagine that if there was surface rust inside the tank and moisture, that you might get a dirty water or sludge out of it, but i also figure my valves being on the top would not see any of this anyway. Luckily you can use the bags to lift up one corner so you can have a drain on the opposite corner of the rails to drain water from them haha true! I'm already loving the benefits of bags, like when needing to jack the car up i can just air it up first and easily slide the jack under. this was a nightmare before, when the chassis was sitting on the ground and wasn't easy to lift Dont think its any issue KK its only say 150psi, cars etc have factory bags and the tanks are never tested, its such low pressure and doesnt blow up so big whoop.True - even though I wouldn't call 150psi low pressure - 150psi being let loose in a hurry could cause some damage - but I get your point that they are not exactly "high" pressure - in saying this tanks are not normally a stressed member either. regarding air tanks as a stressed member, as long as its designed to take both load types simultaneously, there's no reason anything should go wrong. i have heard of situations where air tanks have been done before and failed, but it is when someone adds a dive tank to the system and all of a sudden instead of 200psi you've got 10,000psi or something like that and kaboom good bye chassis! haha. The cert requirements for hotrod/minitruck chassis is 50x70x3 and my 100x100x5 is quite a bit more hefty iv seen PVC tube pumped up to over 100psi. this will be fine. to complicate thingsthough.. I just did some googling. pressure in an lpg tank is only approx 165psi ( depends on ambient temp and gas mix) Yea but LPG can go boom, hence the cert process. His chassis is thicker than most bag tanks you get over the counter, its not going to blow outNed the bags will go down when you drain the tank spot on here, if an lpg tank leaks you've got flammable gas leaking, usually into a car, which is deadly. for cert the minitruck won't be able to lay out on the ground, so absolute worst case scenario to cause an issue is the air tank would need to fail/leak at the same time as the airbags (or valves) AND the tyres, and the chassis still won't hit the ground (when set up to be road legal, instead of the 'show' setup option i've also got, which will lay on the ground). Other than pressurising too high and exploding the chassis (impossible to do with the compressors and feed lines i have), there really isn't anything dangerous that could possibly happen (touch wood... lol). haha, stupid Ned Though if you lean it to a far corner with the drain now being the lowest point, and the tank is still compressed to 150psi and you open up the drain, it will fire all the water out pretty quick...? could work? i don't know. I'll stop talking now and go back to admiring the sweet build! Do you still have that wooden floor? Why use a wooden floor? Looks like your metal working skills are plenty good enough to make up a floor, surely....? Or am i missing something? na, i ditched the wooden floor. the wooden thing was purely so that i could combine the floor and seat base with the sub box (being one structure), and i was going to run an external fuel tank behind the cab somewhere. i've since decided to hide the fuel tank and also all the valves etc under the cabin and so bye-bye to the subs idea. I can live without bass (and have done my whole life in cars haha), and they were just for the show judges anyway tbh. at the end of the day, everything is a compromise, and if i take it to the nats and a judge says "nice minitruck but you've got no bass", I'm not going to lose any sleep about that haha. In saying that, there are still options for me to run small or low-profile subs, which i may or may not explore later in the build. because wooden floor is ballinI recommend polished matai I reckon ply with a veneer of something nice looking. I've got something special planned for the floor/interior, it sadly isn't matai, but i think people will like it Spamming up this thread, but the air moves the water out Ned just like on your compressor at homeAnyway always look forward to these updates man, love the work that goes into these videos thanks Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted September 11, 2012 Share Posted September 11, 2012 Chrome checker-plate for the floor? please dont do it Quote Link to comment Share on other sites More sharing options...
durty Posted September 11, 2012 Share Posted September 11, 2012 slate tiling? Hope its that. or solid marble Quote Link to comment Share on other sites More sharing options...
340i Posted September 11, 2012 Share Posted September 11, 2012 nothing says pimping like solid marble haha Quote Link to comment Share on other sites More sharing options...
My name is Russell Posted February 7, 2013 Share Posted February 7, 2013 Woop woop, top job! What a mission! Must be close to finished? Quote Link to comment Share on other sites More sharing options...
Stu Posted February 8, 2013 Share Posted February 8, 2013 Hats off for perseverance given the dramas getting up to Auckland and back - third time lucky? Quote Link to comment Share on other sites More sharing options...
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