Why do VW devices even exist?

[Midniteoyl]

For 35 years I drove manual transmission cars. They have advantages over automatics that I appreciate. Why do you say all cars have automatic transmissions in them?

The ratio of manuals to autos in todays cars... Most new cars have auto and you have to ask for the manual now.

Point being, if manuals work just fine, why are the majority of cars running around with automatics? Shoot, even if you ask for a manual now-a-days, its actually a semi-auto. Why?

 

[Midniteoyl]

They aren't. Very few cars are automatic; the great majority are manual.

Oh... you live in the USA... that explains it ;-)

Probably because you allow kids as young as 15 a driving license. Whereas in the UK, we make them wait until they're 18 to take the test.

Which is the whole point and the analogy of course. In the USA more people have to have cars so driving has to be easier. Frankly, VV is not in practise noticeably harder to use than VW. You might have to be aware that the difference between 5.0 and 5.1V is bigger than the difference between 3.0 and 3.1V, but maybe not even that.

(At 5V a 0.1V difference is 1W per ohm, at 3V it's only 0.6W. But that 1W is 1/25th of the power at 5V, and that 0.6W is 1/15th of the power at 3V. So although the power is increasing faster, the perceived increase is actually slower.)

And when you are adjusting a vape, the voltage or the power is just a number you are changing. Nobody converts one to the other, or even takes much note of the absolute value, until they want to brag compare their set-up with someone else's.

LOL.. Its all about size over there

 

[Midniteoyl]

I learned to drive at 15 in Canada and got my license at 16. I learned on an automatic transmission in our winter climate (which is challenging) but I switched to a manual immediately with no further formal instruction. Your dig at Americans is obvious and surprising. I thought you were more mature than that, but I was obviously mistaken.

Ya, seeing as how I learned on a manual too.. and got my motorcycle endorsement at the same time.



At 15yrs old..

 

[EuroChris]

I like it. We don't have to ask newbs what resistance their coil is when they ask what they should fire it at.

 

[Midniteoyl]

I kind of wondered the same thing, but in a different way. I think the VW devices provide a constant current and vary voltage (please correct me if I'm wrong), and the thing that gets me is; with the increase in resistance due to the heating of the coil at a constant current the VW would then increase the voltage as the device heats up to maintain a steady wattage. That is that there is an increase in voltage with heat to maintain wattage.

I would think a VV device would be better, the reason why is if it maintains a constant voltage at a lower cold coil resistance it will push more current through initially to heat up faster and the resistor will then start to restrict the current as the resistance increases due to heat. This seems like a better approach to me.

Am I anywhere in the ballpark of correctness?

No.. The VW devices vary voltage to provide the same power, measured in watts. Current will change with voltage as with a fixed resistance, those are the only 2 variables that can change. If you are on a device that can measure resistance while firing, and the ohms change for whatever reason, the voltage is still what is used to change power and keep it constant.

 

[Midniteoyl]

My first car was a manual ('69 Austin Healey Sprite) I purchased in 1971. To this day I have never owned a vehicle with an automatic transmission although we have bought them for my wife and daughter. I drive a WRX now. I vape VW, though.

Did you have to ask for the manual?

 

[scutterflux]

Thanks twgbonehead and midniteoyl for reconfirming how a VW device works, but I've already conceded to that thanks to Ed_C who did a brilliant job of explaining it. I then go on to compared some differences to a theoretical VA device.

I guess I made the premature assumption that a VW device works on the premise of constant current, of which there are a number of real circuits for that are not overly complicated.

Try to keep up!

 

[Midniteoyl]

Thanks twgbonehead and midniteoyl for reconfirming how a VW device works, but I've already conceded to that thanks to Ed_C who did a brilliant job of explaining it. I then go on to compared some differences to a theoretical VA device.

I guess I made the premature assumption that a VW device works on the premise of constant current, of which there are a number of real circuits for that are not overly complicated.

Try to keep up!

LOL... Trying too... Had to sleep ya know

 

[p.opus]

Bottom line guys, is we vape for taste. And that can be achievable with both VV and VW. Here is where VW is a bit easier.

Back when I was using Kanger ProTanks, I would get coils rated at 2.5 ohms. Problem was, they rarely scoped out to 2.5. In fact, they would deviate between 2.3 to 2.8 ohms.

I used to swap out my heads fairly regularly and dry burn them because Kanger heads could get pretty nasty pretty quickly. So now when I put in my replacement head, with a VV device, I would have to adjust the voltage up or down to compensate for the new coil resistance. VW was great because I could adjust my taste for one ProTank and then the taste would be the same regardless of what head I put in as replacement.

I have since stopped using Kanger tanks and now use a Kayfun. This completely changes thing. I'M now building my coils, not Kanger. I build my coil to 1.8 ohms each time. My coils also now last much longer. I'm no longer swapping out coils every few days, now I'm rebuilding every couple of months.

So now VW gives me no advantage. I can merely set my desired voltage, and since my coil resistance doesn't change appreciably, I get a nice constant flavor profile.

One of the slight disadvantages of VW was inconsistent output voltage due to the inaccuracy of the built in resistance checker. A VV simply puts out the same voltage regardless of the load.

However, on board ohm meters have become much more accurate so now VW devices (such as the P3) can maintain levels of accuracy in regulation usually reserved for their VV only counterparts.

 

[Bunnykiller]

for people like me to be happy with vaping???

 

[Shootist]

In my opinion they are basically the same.

As you raise or lower the wattage the volts go up or down. If you raise or lower the voltage the watts go up or down.

Same thing, Different scale. Think Fahrenheit and Celsius.

It is my beleif the reason VW came in was for the Sub-Ohmers that use coils lower than .7 ohms. When companies started to produce regulated Mod's, IE Battery Holding devices, that could handle the lower than 1 ohm coils it was easier to express the electricity going to the coil in watts. Most everyone vapes somewhere in the 3.4 to 4.2 volt range no matter what wattage they have the device set to. Like in your example, 30 watts with a .5 ohm coil is 3.8 volts.

Personally I don't vape sub ohm and rarely if ever go over 11 watts.

 

[bluecat]

It is my beleif the reason VW came in was for the Sub-Ohmers that use coils lower than .7 ohms. When companies started to produce regulated Mod's, IE Battery Holding devices, that could handle the lower than 1 ohm coils it was easier to express the electricity going to the coil in watts. Most everyone vapes somewhere in the 3.4 to 4.2 volt range no matter what wattage they have the device set to. Like in your example, 30 watts with a .5 ohm coil is 3.8 volts.

I do believe the Darwin mod came in right after Provape and their VV. I believe it was in 2011 and the kick followed shortly after. The sub ohm fad is more recent.

 

[Ed_C]

Push button, twist knob until vape tastes yummy. It's not rocket science (unless, of course, you get a short and your battery vents).

 

[Ryedan]

The ratio of manuals to autos in todays cars... Most new cars have auto and you have to ask for the manual now.

Point being, if manuals work just fine, why are the majority of cars running around with automatics? Shoot, even if you ask for a manual now-a-days, its actually a semi-auto. Why?

This I agree with . IMO most people don't drive aggressively enough to feel the benefit of shifting manually and so prefer the ease of automatics. I don't mean aggressive with respect to other cars on the road, but with regard to their car's performance envelope.

I think the transmission analogy breaks down when you consider all aspects of driving vs all aspects of vaping. I don't see any disadvantage to VW for vaping as I do for automatic transmissions in cars.

 

[Ryedan]

I like it. We don't have to ask newbs what resistance their coil is when they ask what they should fire it at.

Yup, that too, LOL.

 

[tchavei]

This I agree with . IMO most people don't drive aggressively enough to feel the benefit of shifting manually and so prefer the ease of automatics. I don't mean aggressive with respect to other cars on the road, but with regard to their car's performance envelope.

I think the transmission analogy breaks down when you consider all aspects of driving vs all aspects of vaping. I don't see any disadvantage to VW for vaping as I do for automatic transmissions in cars.

True but try to convince a buyer over here to buy a car with an automatic transmission lol. My father in law worked 30 years at a reputable vehicle brand and managed to sell like 5 cars with that option in that time and 4 of them didn't knew how to drive anyway and one wanted the latest model so badly he took the display vehicle that had an automatic transmission... They just don't sell over here... Just the thought of it scares most people right off. Heck, I needed to stalk my wife for three months until she accepted the Mercedes parking break system (pedal instead of stick) and that's not something you use continously during a drive.

Even I feel rather baffled by an automatic transmission... I mean... Gas and break pedal? What's the fun driving like that?! How do I break with the engine before a hard turn? How do I make the wheels grab on a slippery road if the car starts drifting?

I'm sure that all can be done but why learn all over again if I'm perfectly happy with manual transmission?

My two euro cents

Regards
Tony

Sent from my GT-I9195 through Tapatalk

 

[Ed_C]

While I love having a manual transmission, it stops being fun if you drive a lot in heavy, stop-and-go, traffic.

 

[tchavei]

While I love having a manual transmission, it stops being fun if you drive a lot in heavy, stop-and-go, traffic.

Yeah, that kinda sucks playing continously with the clutch and pedal but I'm like that woman in the Amazon forest... I never knew anything better so I live with what I have


Regards
Tony

Sent from my GT-I9195 through Tapatalk

 

[BababooeyHTJ]

Not all juices like the same wattage.

For me the big reason is the consist wattage. I hated when my battery would hit 3.8v or less back when I was dripping

So for me it's consistency.

 

[jjk1]

Juice #1 in a 1.8ohm nautilus mini tank
Juice # 2 in a .5ohm kayfun -
which setting is more "automatic" for the user of the mod - VV or VW