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That's awesome! Cool deal :cool:

Now if we can just get the yellow vs. double-orange spring swap error under item #6 fixed, we'd be stylin' all the way. (noir, did you happen to forward my PM...

My whole entire post disappeared here so I guess I'll have to repost the part I was trying to get at...




That right there is what's being missed, there is no load on the motor in low gear...

Another thread (specifically explains shimming those particular gears) ;)

http://monster.traxxas.com/showthread.php?t=526812

I also see what appears to be remnants of a blown 6x12 pinion...

I also use 18/68 with stock tires. Seems just about perfect gearing to me.
My run times average 1½-2 hours while putting around on 3s (10,000mAh, or two 3s 5000s in parallel), or about 25-35 minutes...

Does sound like something wrong with the radio setup if it's a 2.4GHz... Did the receiver antenna wire maybe get damaged or pinched while the receiver box & wire clamp was open?

The 1800 is a physically larger motor with larger windings that is able to sustain higher wattage (more power).

If you have a 2200 and a 1800 both geared appropriately to get identical speeds,...

Yep.
Take a look at the rear fender flare (also the "rocker panel" at what would be the bottom of the door). It definitely started life as a stock Summit body.

Looks like FPV on the boat too...

Yeah, agreed, sounds like a differential failure (blown inner pinion bearing and/or stripped gears on the rear most likely).

Time to tear it apart.

I think what's being missed here is the fact that by gearing the thing so low, the motor will not have any substantial load on it, it will basically just be free-spinning itself at near full RPM if...

The secret seems to be getting the slipper tightened JUST to the point where you can pop a wheelie from a standstill, but no tighter (otherwise you'll start breaking parts too often). You'll probably...

I think my neck vertebrae have dislocated themselves and are stuck at a 90° angle now after watching that 2nd vid lol.

Cool that the setup working for you. Just be sure to keep a close eye on your...

I think the recommendation of the 2000KV motor is a good one.
If you decide to stick with Castle, the 1518 1800KV motor would probably run even cooler still. For your speed runs, all you need to do...

Correct, the ESC does use PWM to control the motor's speed.
All that's going to happen by giving it more throttle with lower gearing though is the motor will just spin itself a whole lot faster,...

Cool deal, glad it's working. :)

18/68 is actually a little tall for NiMH, I'd suggest 14/68 until you get your LiPos.

Having LiPos, 18/68 works great with stock (sized) tires around 7" dia (and is what I run).

I suspect all that's only true at full throttle. How much are you at full throttle in Low gear?

I would be looking at the car's actual performance to determine the best gearing for it. As long as...

Because the Tekin is more $$$ and MMM works perfectly fine in the Summit (plus the Tekin is not nearly as plug & play like the MMM is).
Not having used one (or using the wrong firmware) = Fail....

Yeah, I ran into that too. Not sure what the purpose of that setting is, because it's completely useless for any practical use as far as the brakes go.

ALso, you might want to experiment some with...

I get about 20-30 mins if running 6s on mine (MMM/2200, 5000mAh). It'll vary widely depending on how you drive it though.

I suspect it's from the foams not being installed correctly (bunched up in spots). After some use the foams should settle into place better, smoothing them out some (mine did anyway).


Yes,...

Yeah it's supposed to bottom out, though you can reduce the intensity of it bottoming to some degree by going with a thicker shock oil, say 80w or 100w (I run 80).

Also you can crank your shock...

You can do it that way, though if you ever want to run your packs in parallel (3s2p or 4s2p for example), you'll have to jumper one side.

Was gonna suggest at an angle too.

Getting it to climb straight up will depend on the spacing of the stairs. If the stairs are spaced about what the Summit's wheelbase is, it may be hopeless to...

The MMM is actually rated for 2s (7.4V) minimum, though it's painfully slow at that voltage. I would run 3s LiPo minimum on it (which can give you some incredible 2+ hour run times when running two...

They already sell them with a silicone conformal coating on the board, though it isn't real thick. I recall Castle reps being on here in the past saying a splash shouldn't hurt it but not to actually...