Standard Reo Grand, RM2 limits on coil resistance?

[gpjoe]

OK, I have a couple of standard Grands, no sub-ohm kit. I usually vape them with coils that are above 1-ohm, like 1.2-1.5 ohms. I'm sure this information has been posted here before, but seeing as the board has some "limitations" when searching, I'm just going to ask again:

How low can I safely go with a standard Reo Grand and RM2?...am I already at the lower limit with a 1.2-ohm coil?

 

[MXBNW]

Before the contact upgrade I was using it any where from .7-1.1 ohms and was working just fine

I was seeing others go lower but not sure how low before collapsing the spring.

 

[Rmcgloth]

.7 was the low comfort zone for me as well, but the first ones sagged that wasn't a short was a .4.

 

[Rickajho]

Before the contact upgrade I was using it any where from .7-1.1 ohms and was working just fine

I was seeing others go lower but not sure how low before collapsing the spring.

There's that. ^^^ I think the low end limit on the non sub ohm spring is around 0.5 ohms but down to 0.8 ohms-ish you should be fine.

As someone else said yesterday: You have practical limits too, as far as how low you can build a single coil RM2 before it just doesn't deliver right.

 

[Papa_Lazarou]

I have run single coil setups on a non-upgraded grand down to .6 ohms (28 gauge, 5 wraps - any fewer and there's just not enough juice getting vaporized). Spring didn't collapse or anything, but I did see a fair amount of pitting on flat top bats due to arc'ing with the firing pin. Lots more cleaning and noaloxing needed when you're below .9 ohms, as well. Of course, mind the amp ratings on your bats, too.

If your reos see plenty of use (who's don't?) and you find you want to hang out around .6-.8 ohms for a while, you might want to consider getting rebuild kits.

 

[gpjoe]

Thanks guys. I don't plan on going much lower, but I wanted to be sure I wasn't riding the edge of the Reos limitations. I should be safe at 1-1.2 ohms which is fine for me. Of course if things do go south, it's nice to know that I can rebuild with a sub-ohm kit.

 

[Raynman]

I might suggest putting a dollop of Noalox on the Positive end of the battery. This will stop arcing, the Noalox is a place where no oxygen can make a spark and means no pitting to your battery.

 

[gpjoe]

I might suggest putting a dollop of Noalox on the Positive end of the battery. This will stop arcing, the Noalox is a place where no oxygen can make a spark and means no pitting to your battery.

Thanks for the tip. I will admit that I have neglected the switches on my Reos. I have cleaned them but have not applied any Noalox. I do have a good sized bottle I picked up at Home Depot (not sure of the size) and it's probably a lifetime supply for me and everyone else in Reoville, so no excuses.

 

[Raynman]

Just my experience but I found the dollop of Noalox on the battery tip resulted in not needing to file the firing pin. I was using .7 to 1 ohm coils. YMMV

 

[Rickajho]

Yup. Noalox makes a big difference on improving conductivity. If any of my non upgraded Reos are having a bad day all it takes is wiping off the old and replacing it with a healthy dollop. Don't be skimpy - too little doesn't make things better.

I know some people are using Deoxit but... Deoxit liquids don't have that gloopy paste consistency that Noalox has. When you put that Noalox on a firing pin you know it's there. You can't see/tell if Deoxit actually got where it needs to go.

 

[Rat2chat2]

Great information.............thanks.