Woodvil new spring and switch mod voltage drop results.

[Filthy-Beast]

got some of the new gold springs in and decided to tackle #18 burl first.

Before tests:

coil = 1.23 ohms, Sony VTC5 battery

4.19 just the battery
4.10 Battery under load
3.63 measured at coil posts

that means a battery induced voltage drop of .09 volts and mod created drop of .47 volts for a total drop of .56 volts.

Replaced the spring with the gold one:
3.77 measured at coil posts

So this lowered the voltage drop by .14 volts for a new total drop of .42 volts

Next I decided to put a drop of solder across both pins on the on/off switch bypassing it. (off doesn't work now. always on)

3.83 measured at the coil posts.

This lowered the voltage drop a further .06 volts for a new total drop of .36 volts.


The combination of the spring and drop of solder gained me .2 volts of additional power to my coils or now a battery at 3.7 volts of charge hits like it used to at 3.9 volts.

I've only ever used the on/off switch when putting them security at the airport so I'll just pull the battery from now on.

 

[RattlerX]

Nice post

thank you FB

 

[redeyedancer]

I would be willing to bet if you soldered the joints on the spring itself were there pressed together you would get even better performance .
Thanks for sharing

 

[redeyedancer]

I should have the magic positive contacts soon it will be interesting to see the reading with these installed

 

[MamaTried]

I should have the magic positive contacts soon it will be interesting to see the reading with these installed

magic pos contacts for Woodvils??? is that for mech Woodvils???

you are such a tease...

 

[mackman]

No for the current Woodvil's

 

[MamaTried]

No for the current Woodvil's

aah. thanks. with the switch(s), i would not have expected those to contribute much.


but he's still a tease...

 

[redeyedancer]

Any woodvils yes I am a tease so they tell me

 

[rudy4653]

got some of the new gold springs in and decided to tackle #18 burl first.

Before tests:

coil = 1.23 ohms, Sony VTC5 battery

4.19 just the battery
4.10 Battery under load
3.63 measured at coil posts

that means a battery induced voltage drop of .09 volts and mod created drop of .47 volts for a total drop of .56 volts.

Replaced the spring with the gold one:
3.77 measured at coil posts

So this lowered the voltage drop by .14 volts for a new total drop of .42 volts

Next I decided to put a drop of solder across both pins on the on/off switch bypassing it. (off doesn't work now. always on)

3.83 measured at the coil posts.

This lowered the voltage drop a further .06 volts for a new total drop of .36 volts.


The combination of the spring and drop of solder gained me .2 volts of additional power to my coils or now a battery at 3.7 volts of charge hits like it used to at 3.9 volts.

I've only ever used the on/off switch when putting them security at the airport so I'll just pull the battery from now on.

Very informative!
This confirms that it wasn't my imagination when I got my Woodvil back from Rob with the new spring, PLUS my woodvil is a mutant and does not have an on/off switch so essentially it's the same as yours! Hits like a frieght train and had to add a couple of wraps to my coil to get the same sweet spot I had before. I was at 1.1 ohms now went up to 1.37 and still hitting harder than before!

 

[BlueSnake]

I just realized that the Woodvil I sent to Rob for a loose spring repair came back with one of the new gold springs installed.

Thanks Rob. You Da Man!