What are you running it on - 6S? I'd like to know how this thing runs on 4S - seems heavy for 4S with a 2200KV motor.

Eel- I'm like the truck more now. :great:

What did you find in the diffs, silicone oil or grease? Looks awesome!

My LHS called me today to tell me they're getting two in this Tuesday and my name is on one of them. :D Guess I'll have to add it to the list in my sig.

I did a few quick runs this morning with 2 3S 5000 Flightpower packs. This is the wildest, most powerful brushless stock truck I have ever driven. It beat the snot out of my FLM brushless chassis Savage. They both have a MMM with a 2200 motor, but the lighter weight of the Flux let it walk all over the FLM. You can shoot the Flux over a jump and literally do a mid-air flip. Standing backflips were no problem.
I tried to break the diffs, but they held up. To compare, my FLM with XL hardened ring and pinion busted teeth off the pinion after 4 backflips. The Flux diffs are still going strong after 11 consecutive backflips. I think this is due to a combination of the lighter weight and new R&P on the Flux.
The FLM is more stable on a track with it's longer wheelbase, but if you can keep the Flux on its wheels it can turn tighter and accelerate faster. Still, all in all, the Flux is a pure bashing machine. I rode a wheelie for over 120 feet with no problem. The shocks handle huge jumps without bouncing the truck on landing. So far, nothing has broken! I'm amazed.
On a side note, this is NOT a truck for a newbie on 6S. It takes some experience to control the violent speed. I didn't have any decent 2S packs to run, but I think for beginners, 4S with lower gearing would be better.
Run time varied on trigger action, but the average was about 13 minutes of all out bashing. Motor and ESC were not hot at all, even covered with the body. This was with a gearing of 44/25. So bash away and don't worry about temps.
Overall, I think HPI and Castle have a real winner here.

Man I hate to hear such a good review b/c now I have to spend another $600

how would you compare it to a E Revo?

What was the outside temp btw. Nice to hear about the performance. I'm hoping to get my next week. very excited!!

Azjc, I've never driven an E-Revo so I can't really offer a comparison. If I had to guess, I would say that they are sort of apples and oranges (to use a tired analogy). The Revo seems more of a low slung racer type vehicle. The Flux is more of a monster bashing type vehicle. If racing is your main thing, I would get a BL Revo. If you like the bashing side get the Savage. It is really, really fun to drive and do hard core bashing, but no Savage is really going to be at home on a race track without a lot of mods.

Rabosi, the outside temp was 63 Fahrenheit. The motor and MMM were not even hot to the touch, so it will handle much warmer outside temps.

...nice first comments...glad to hear they are going well...Thanks for those initial pics too...REALLY needed to see those motor mount braces ;) Keep us posted with eye candy too :D

Thanks for the temp info. I wonder if the motor heatsink design is any more efficient at dissipating heat than the other neu designed motors.

Probably not - heat dissapation is a function of surface area - this doesnt seem to have any more - actually looks less to me.

Just from the photos it looks like same surface area if you add the area on the sides of the pips. Assuming this is so, would there be an air circulation advantage to this design?

GD that's a nice stock truck.... go hpi.
If/when I get bored of the nitro in my XL its nice to see there is some stock parts that will make an easy swap and hold up to the power as well. (My revo tranny never really did)

All of the great feedback on this truck is making it harder for me to resist buying one, especially since Tower is running a $60 off code right now.