What booster is it? It could be the booster. I had a Novak Smart Boost that has the voltage safety on it and it didn't work with my Tekin RS. However, I noticed that the new Novak booster doesn't have the low voltage safety, so that one may work.

it is not the novak one it is in white shrinkwrap no name on it speedo can only go down to 4.5 volts

If the low voltage cut off only goes to 4.5 volts, then you can't use it for 1S, but I think that's unusual. Most can be turned off.

i think they did it like that so they could come out with their new 1s speedo! i am going to the offroad track and will ask andy smolik he is the western dist of viper if hes there i have a novak on the way with another car would like to use the viper it isvery small and realy easy to tune easiest i have ever had no pc or with the pc

Just checked the Viper RC website. It looks like the firmware doesn't allow any disabling of the battery voltage cut-off function. You'll have to find another speedo that does or a speedo that does 1s.

That Novak 1s Havoc that you'll be getting is quite large. It will do for starters until you decide to get something better like an LRP or the VTX-1.

Stay away from any of the newer Novak 1s speedos. Although they are 1s, they're designed to be runned only with an extra Rx pack. This I got straight from the tech at Novak.

How does the BMI DB12R compare to modern 12th cars, is it still reasonably competitive for someone coming into 12th?

That is absolutely no reason to avoid Novak speed controls. Many racers prefer using a receiver pack to a booster, myself included. You can use Novak 2s speed controls as well since they have the ability to disable the cut-off function. The only issue I have is that the size of the Havok/Kinetic is a bit large for 1/12th. That being said, I run a Havok SC Pro in my 1/12th car and have room for the reciever pack as well. It's a smooth and reliable combination. If you want a small speed control for non-ramping classes the Novak Edge works great too, and has a smaller footprint than an RS

The original DB12r is one of my favorite cars to drive, very smooth and forgiving. But it's a tenth or so slower than some of the newer cars, so competitive depends on your level of competitors and your skill level.

All of that is true but why not just get an RS and have the ablity to run booster, rec pack, ramping, and spec all with one esc instead of having to buy/swap out different esc's for different needs.

The Havok SC Pro does all those things and without the need for a computer to set it. The only reason I mentioned the RS was as a size reference since it is so well known to everyone

You don't need a computer to set it. In fact I would argue its easier to set things on the Tekin then it is on the Novak because of the led system the RS has.

But meh. Both are a PITA in my opinion with no built in boost on either. So I'm going to continue running foreign ESC's that can, till one of them get their head out of the sand.

novak speedo's are some of the best esc's made to date. run great in 1/12th with no problem either using their booster or run a rx pack. I use the 1 s havoc plenty of esc for 17.5 blinky all the way down to 10.5 blinky. I also have used the new havoc sc w/xdrive in mod 1/12th and been extremly pleased with it performance with 4.5.

today I ran my 1s kinetic with booster. fast enough to be.05 from tq and win against a few Roar national champs.

I would say buy novak first just because you can get them serviced here in states. Not many esc mfg's can say that today.

heck if you don't want to run a booster or receiver pack novak esc also run on low voltage. only problem with low voltage is your servo won't be as fast as it can be. for beginners this sometimes is a plus.

Novak stopped servicing speed controls years ago. Unless its under warranty (120days from date of purchase) where they'll replace it, you either have a choice of replacing it at a discounted cost or upgrading it at a slightly discounted cost. This has become the standard for all the speed control manufacturers. Its not worthwhile for them to pay a tech his time to repair one speed control when it is just cheaper for them to replace it.

Hey guys, Any AE guys knows what length sensor wire to use with inline 12th car? My speed control and cap are in normal position and I have Reedy motor

They have an 85mm at shop but it seems little short

Thanks