I have had a few new JKRH with this same problem. I break all my motors in the same. "Dry break in until the comm is dirty all the way across, sometimes taking 15-20 hours on 4 volts."
I am having what seems like "turbo lag." The motor seems to not have any low end power and then all of a sudden it takes off.
This happens all too often for me and local racers. This is not just a 7R issue; this has been occurring for over a year for me now. I have seen racers put in over eight motors and have this problem occur every single time.
I have one that has a slightly different issue. It is a dog until I put about a hundred laps on it on my home track, then it wakes up and is a rocket. Let it sit for an hour and it is a dog again.
I have had a couple of Hawk 7s do that this year, the etched ones that are current supply. None have been as fast as prior ones.
I have one that is doing that now and there are a couple others at the local track that do the same thing, Don't know what the problem is just replacing them for now, I feel your pain.
Same here, Dennis.
Four out of five do that, but it only takes a few mins.
I put some in water, turned them up to 12 volts and they come to life for a second but then go back to $hit
Last year at R4 I did have one Retro Hawk that would run 5.0s for 5-6 laps, then take off and run 4.5s. If you kept running it, it was fine. Let it sit and it would do it again.
I've experienced what Cap is saying before. At least three times. Motor is slow while cool, soon as it picks up heat it takes off like it shifts in overdrive.
I have had the same thing happen on some of my RH motors as Cap described.
I have had many older version Hawk Retro motors that ran slow for the first 6 to 8 laps of every heat. Then picked out and were very fast.
I've had only one Hawk Retro do the same slow/fast thing.
I had it happen once with an "R" version. When it kicked in it was like someone hit the NOS button.
Sounds like a bunch of guys who know nothing about slot cars, correct motor break in procedures, how to gear a slot car or thermal over heating. LMAO
Seriously though, I feel instead of blaming the racer (again), a simple "I'm sorry the motors are inconsistent at times, but we are doing the best we can to improve our already great products" would have been more then anyone could ask for.
Nobody expects every motor they buy to be a missile.
I for one enjoy the majority of JK's products Tim, and I very much appreciate your efforts. Some of us are just tired of the "you don't know what your doing speech".
If you have some time in your busy schedule could you reply the questions I asked in a PM on November 28th?
To be clear I'm not bashing JK, or looking for a back and forth argument, and I'm not looking for an official response. I am simply stating my opinion.