VTR v2 firing sub-ohm coils?

[Cromeus]

So I've been using my VTR as am ohm meter for my mech coils, and just wrapped dual dragon coils on my chelios - on a whim, I decided to see if it would fire, and it did, at 0.6
I started at 4 volts, and it fired all the way up to 6 volts with a visible decrease in heating time between 4 and 6. I'm using AW 1600s of course, so the 10 amps it could be drawing isn't an issue, but I thought VTRs didn't do sub-ohm coils to begin with? Did they change the chip in the newer version(non spinning)?

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[UncleChuck]

The VTR is probably automatically adjusting the voltage down to compensate for the low resistance coil. Where as a device like the Provari would show an error, most of the cheaper variable devices out there just automatically cutoff at their highest output (whatever that happens to be limited by) if they are unable to reach the setting the device is at.

Just looking at scope readings when using something as high as 1.5 ohm it cuts off before 6v, so I doubt it's firing a .6ohm coil anywhere near 6v. It's possible they have updated the chip or something, but I'd imagine being such a beast would be a selling point they would advertise heavily, not leave up to the consumer to discover on their own. I'd put my money on it simply cutting the voltage a lot lower than you have it set, although it is impressive it fires that coil at any voltage IMHO!

 

[Cromeus]

I'd put my money on it simply cutting the voltage a lot lower than you have it set, although it is impressive it fires that coil at any voltage IMHO!

It really is - and apparently there is a slightly different chip in the new version. First version cut out below .8, this will fire down to .6.

Now, the only limit on it is 5 amps, and so that means that a .6 ohm coil will only fire at 3 volts; the VTR will not fire it at any other voltage. Still, cool.

When contacted, Innokin claimed that the VTR won't fire below 1 ohm, and they don't advise using below 2.1. Shows what they know.

(Google helped me out when I didn't get answers)

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[AMDTrucking]

I have my VTR firing the Aqua Dual Coil RBA at 0.7 Ohm no problems.

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[AMDTrucking]

I just Tried 0.8 Ohm Steam Turbine Dual Coil Genesis RBA and it works too: (But NOT quite as powerful as Mechanical Mods)

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I should have cleaned the drip tip before taking the picture...

 

[Jeffk123]

I don't have a vtr but I would.like to add my mvp fired a similar ohm coil to yours a few days ago I removed the coil though I dont think the mvp is built for sub ohming. Must be something in the control chip?

 

[AMDTrucking]

I don't have a vtr but I would.like to add my mvp fired a similar ohm coil to yours a few days ago I removed the coil though I dont think the mvp is built for sub ohming. Must be something in the control chip?

I wouldn't even try an 11 Watt MVP to fire anything other then the factory made Atomizers like iClear30, iClear16, Kanger Protank and so on...

 

[Jeffk123]

It works pretty good on my rebuilt protank heads no issues with that I was building dual coild and came a few wraps short it.ended reading .9 ohms and it didn't give me a short circuit error where the button just glows and won't fire.

 

[AMDTrucking]

It works pretty good on my rebuilt protank heads no issues with that I was building dual coild and came a few wraps short it.ended reading .9 ohms and it didn't give me a short circuit error where the button just glows and won't fire.

Sure thing. But, when you will get tire of gurgling on a Protank and get some RBA's - you'll understand what am I talking about.

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[DBADude]

Sure thing. But, when you will get tire of gurgling on a Protank and get some RBA's - you'll understand what am I talking about.

Haha, that pretty much sums up my experience with Protanks. I haven't touched one in months.

 

[Cromeus]

Haha, that pretty much sums up my experience with Protanks. I haven't touched one in months.

I just got three in the mail that I'd ordered in January... Haven't taken them out of the box.

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[AMDTrucking]

I just got three in the mail that I'd ordered in January... Haven't taken them out of the box.

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I sold all 12 of my Protank II and 3 on eBay for $4.00 - $5.00 each used. I think I have enough stuff to play with

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