Latest about my build.
So far nothing was broken on this build. I've only replaced a rear plastic driveshaft since it looked a bit worn. And the truck have by now been through a great deal of moderate hard bashing.
Got the 22t Robinson pinion installed. I do find speed more than adequate by now. Using 1/8 scale diffs, a 22/68 gearing seems right to me and the Proline TrencherX's start to balloon a bit at top speed.
Differential Ratio: 3.3076923076923075
Transmission Ratio: 1.8333333333333335
Other Ratio: 1
Spur Tooth Count: 68
Pinion Tooth Count: 22
Total Voltage: 16.80
Motor KV: 2200
Tire Diameter (inches): 6.5
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor Coil Resistance: 0.006
Spur/Pinion Ratio: 3.09 : 1
Total Ratio: 18.74359 : 1
Tire Circumference (inches): 20.42 inches (518.68 mm)
Total Motor Speed: 36960 RPM
Vehicle Speed: 38.13 mph (61.25 km/h)
That's fast enough to my driving style.
I have replaced the plastic servo horn with a Racers Edge Aluminum Servo Horn Single Arm Futaba/Savox Black. Didn't notice any difference though - at first...
But since I used the outermost hole on the servo horn (for faster action) it might have changed the amp draw of the servo, which then caused some minor glitching that I didn't have earlier. So to be on the safe side, I installed the CC 10A BEC. Problem solved.
I had really been sceptic about Robin @ UE. The lack of communication from his side and the way he wanted money transferred (western union). That concern was totally uncalled for. I'll do business with him again - UE servo saver perhaps?
I planned to use BigBores right from build start. I like the Alu bodies and the quite strong shafts that don't bend easy. But they are 3mm shorter than the Ultrashock, which I don't like
So I could just have stayed with stock Traxxas XXL Ultrashocks. They are longer and actually have slightly bigger bore than the Traxxas Big Bores. But I don't like the plastic bodies, and I don't like the very weak shafts that bends very easy.
So I thought I was going to stay with Big Bores. Installed with 50wt and stock white progressive springs it seemed like a fairly good combo, with springs just a little to the soft side. Thicker oil than 50wt would be to heavy with those stock springs.
The reason to use UE Supershock instead of traxxas BigBores, was mainly since Popoxx went that route in his FLM build.....
He used them in a 8 shock setup, and then I just ordered 2 sets since it seemed like the right thing.
I have seen others using just 4 UE Supershocks on the E-Maxx. But it somehow looks weird to me on an E-Maxx and I couldn't find any cons vs pros of a 4 shock setup.
Got everything put together. Robin recommends using 35-45wt oil on a 8 shock setup, so I used 40wt oil. He also recommended the red springs back and white ones in front.
This is how it looks installed. Unfortunately it's no longer possible to have the Carbon Fiber shocktower braces mounted with these shocks :-( I'll have to find a solution to that issue.
The chassis is starting to show a little wear and tear:
Popoxx used Blacks rear and Blue front. Sorry, no trying to offend any one - but in a 8 shock setup, those springs are way to hard. Sure, it will prevent the truck to bottom out at really high jumps, but it will also totally remove any droop and any good handling when driving on terrain. This is also quite obviuos when you watch one of his youtube videos. Notice how the truck don't drive the terrain, but merely bounces over it. I like a setup where the body is floating over the terrain, and the suspension and tires do their job:
So far I didn't have time to do any test run with the UE Supershocks and tune shocks and suspension geometry.
Red springs back seems too hard for this truck in a 8 shock setup. With shocks mounted on outer A-arm possitions there is only very little droop - it might be better if I mount shock on middle posistion, I'll have to test that.
White springs front seems better. They are just soft enough to give about 1 cm droop. But also here moving mounting possition might help.
40wt oil might also seem a little to thick, but not sure about that yet. I only had 40wt, 45wt, 50wt, 60wt home @the moment.
Dropping the truck at aprrox. less than 100cm height wil not make it bottom out in this setup.
Using the previous BigBore setup would make it bottom out dropped higher than 50 cm!
That's about it for now..