I disagree, can I pick on this a little bit?

I submit Tony Cicale in indycars.

http://gordonkirby.com/categories/co..._is_no215.html

Or Dario Franchitti's engineer Chris Simmons.

http://www.catchfence.com/tag/chris-simmons/

Look what seven time AMA champion Rick Johnson has to say about some scrub named Cliff Lett:

http://www.motocrossactionmag.com/Ya...NSON-7777.aspx

Sometimes the engineer makes an enormous difference. It helps when he can wheel it. Sometimes it helps that he's just a decent guy.

That said, George didn't come up with shit. He's like a kid who copies the answers in high school, then brags about his grades. Even on ignore he gets under my skin because all he knows how to do is follow a setup sheet on a vehicle that is far from perfect. Imagine what he'd do with Cameron's setup.

If advocating the setup the Ryan's use (which I think came from a user on this forum, not George) is good enough for an attaboy, I can't imagine why nobody has mentioned or thanked Xerox copiers.

Just because you can follow a diagram or directions doesn't mean you know what your doing. Even the kid in China can "setup" a SC10 4x4 RTR (and probably does several a day). Doesn't mean he has the faintest idea about what he's doing

man, this thread is a great read but it really makes me second guess getting one of these. also, compounding the issue is that there are a TON of these in the for sale forum. perhaps a later iteration won't have as many issues. but it still seems like it would be fun tinkering with even if most of my local tracks are 1/8th scale and likely to stress the shortcomings of the design.

[QUOTE=Noumenon;10375020]

man, this thread is a great read but it really makes me second guess getting one of these. also, compounding the issue is that there are a TON of these in the for sale forum. perhaps a later iteration won't have as many issues. but it still seems like it would be fun tinkering with even if most of my local tracks are 1/8th scale and likely to stress the shortcomings of the design.[/QUO

Mine is going to join that garage sale also. Just had enough. I mostly run on 8th scale track with huge jumps and the losi's are just making a killing. No matter how much mods you do. The truck is designed for 1/10 th course. Just have to go back to my roots and get a nexx 10 sc.

Just wondering why the sc10 4x4 cannot jump on 1/8 style tracks. Can anyone pin point the actual problem? Can't imagine giving giving up on this truck

Smh.. wondering why a 1/10 scale truck will not work on a 1/8 scale track.

Thanks for the gearing help gentlemen. I appreciate it.

Just wanted to say thanx to Chris. I just got in my swaybars in the mail last night.

The problem as I am understanding it is that you don't have the control in the air on really big 1/8 jumps like the losi does. When you come off some of those jumps alittle bit wrong (nose up, down, etc), the ability to change its orientation in the air is not there, or at least not at the level that the losi has from what people are reporting.

By the way, does the durango have this problem? I have always seen the losi used as the example to compare to, what about the durango?


Has anyone talked with a higher up at AE about the problem and got anything from them that they can state here that may help or at least if AE sees there is an issue?

I wonder how much bias you get when the foward style saddle pack conversion from exotek is used?


Do you think the shims that AE included with the new gear diffs for the SC10 could be used?

So I got my truck built again, and took it out to Gulf Coast Raceway Yesterday to attempt the infamous Quad and Triple with it. The track was in less than optimum shape. It was wet and grip was not optimal. However, I was able to consistently clear the quad without problems. The triple was also possible, even though not as easy as with the Losi. However, during racing nobody really attempts it as it is pretty inconsistent due to the long flight time. We typically only do it to gain time on a last resort basis and it's only like a 50% chance you will land right and actually gain time.

There are several things that I feel helped my truck out: For one, the 550 motor. For my PERSONAL preference, it makes the truck easier to drive on the big track. I like the extra weight of if and where it is. With new gearing on an SC4x 4.5, (14/58) with a Tekin RS Pro in dual mode the truck had almost the same top speed as the 4600, however with less punch. This translated into much easier throttle control, which in turn allowed me to run the truck at 6lbs 2oz. The lighter weight seemed to allow the truck to jump much better and longer too. The landings are far less harsh.

For drive I ran a clutch basket with HD pads. We tried our own version of a center diff, and while it felt good through the corners and rough sections, it suffered leading up to jumps, it felt like it was diffing out. It's almost like an 8th scale with too light of a center fluid/ empty center diff.

The clutch basket had much better forward drive and was a little loose on power. Nothing that was too bad though. However not as stable as the Losi truck.

Another thing that I think suited the track was light diff fluid. Running 3k rear 5k front. This is what I run on my SCTE, so I figured I would give it a shot. I still am not sure about it, have to run it in more, but so far I have liked it.

Now I am just waiting on a pinned top shaft to try that again. We'll see. At least the jumps are doable. I do think that part of the problem on the jump is that the right line to take is only about 3 ft wide. This is really hard to hit every time correctly on a track this size.

Above is a picture of the truck.

The Durango jumps better than the losi!!
Well since the release of the FT we all know that someone up there is watching this forum The thing is that there is really nothing that can change except motor rotation and i hope to have an answer on that by tomorrow, besides that it would take a MAJOR overhaul of the design and there is no way they are going to do that. I did hear a rumor that this truck is going to be downgraded to a "junior " model while an RC8 based SC is in the works, my source is fairly reliable but ya never know!

I guess let me rephrase you mother f**ker! Lol. Just trying get the physics behind it. Is it the weight? Weight distribution? Shaft vs belt design? I know it's a 1/10 scale truck but does the Durango desc410r have the same issues? And just because the Losi is an 1/8 buggy design isn't a clear enough answer. I'm kinda new to this truck and the whole rc hobby and just having fun so PLEASE don't flame me for asking!

In my opinion is is simply the location of the motor, My truck is actually heavier than the Losi right now so its not weight. The DESC does not have the same problem and it is a light truck. Testing reverse rotating motor tomorrow It may or may not fix it but it will change something!

I have never had much issue about the truck jumping. My personal feeling, which is not the end all, be all with this truck is that it lacks grip. On smaller tracks, this is not a very big issue because high power motors are not needed to get around the track quickly, but on the big tracks, the problem is exacerbated. If you can't get the power down, you can't get speed to get the jumping distance.

The truck lacks a proper power distribution system. The slipper set up is not great and the center ball diffs slip with high power and or high grip. Even when running a triple clutch, the power is not distributing to all 4 wheels equally. The front always receives less power with the decoupled set-up and receives more power with the center diff set-up. Neither is really optimal.

The Center of Gravity is high. Even with heavy aluminum chassis, the truck still has a high center of gravity relative to the other race trucks in the market. Again, on high speed, big tracks, this is a hindrance.

Lastly; messed up roll centers. The truck has really low roll centers, and high CG. This is the combination of death. Top that off with a heavy lexan body and it's not a good combo. You are stuck running too stiff of a spring to keep the truck from dumping over in the corners, which leads to no forward bite.

These issues are null/ or close to null on higher grip indoor tracks. But on low grip tracks or big tracks, the truck's weaknesses are exposed.