R/C Tech Forums

R/C Tech Forums (https://www.rctech.net/forum/)
-   Electric Off-Road (https://www.rctech.net/forum/electric-off-road-4/)
-   -   Tekno SCT410 Thread (https://www.rctech.net/forum/electric-off-road/676777-tekno-sct410-thread.html)

ChuckTee 04-28-2014 03:46 PM


Originally Posted by fq06 (Post 13220863)
The example he gave would be for the right side of the truck. If your looking at the left side with the dot to the far left, that's 4.5°… not 2.5°.
If you were looking at the right side of the truck and the dot was on the far left, that would be 2.5°.



Haven't had that issue but maybe the barrels in the CVA are worn and need to be replaced or the cva's holes are ovaled out or both need to be replaced?

As those holes wear and get stretched out and bigger it allows the pin to slam from one side to the other.

I guess I will replace the stub axles but I am scared that they will start busting like everyone else's were but hey if they go they go. I am already replacing pins like a mad man so it could only get better.....I think. Thanks man

justpoet 04-28-2014 03:52 PM


Originally Posted by ChuckTee (Post 13221008)
I guess I will replace the stub axles but I am scared that they will start busting like everyone else's were but hey if they go they go. I am already replacing pins like a mad man so it could only get better.....I think. Thanks man

Find me on wed night and I'll take a look at the parts for you. Try to have one of the worn out pins too for me to look at if you can.

If you haven't been doing it already, you can rotate the stub and use a different set of holes, getting a clean slate when you replace the pin and barrel.

wreckya 04-28-2014 04:03 PM


Originally Posted by rallyredevo (Post 13215024)
Trying to follow this setup sheet (Sean Ramos, 11-21-2013, indoor med. bite):

http://www.teknorc.com/tekno5/wp-con...r_med_bite.pdf

Got everything except I don't understand the note that says "Pivot ball on steering hub flipped," and when this is done, what is the significance of the numbers in the "Bumpsteer/Ackerman" section? Are the over/under numbers flipped too? Picture would be worth 1K words right there.

Also, the Fioroni pistons bind up my suspension a lot. Do those have to break in? All other components were built loose/floppy and well broken-in by now, and only bind up after hooking up the shocks. Also if it sits for a while, the suspension is "stuck" till I move it up & down. But even after that, I can press it all the way down and it stays ~80% compressed, and I can pull it up and it stays ~80% of full droop.

And out of curiosity, why are the body mounts switched between front & rear?

I run the fioroni pistons and no binding. You drilled out the piston holes so they sit flush on shaft correct. I put them on the shaft loose then pull the piston all the way out then tighten the bottom cartridge cap then while pulling down on the shaft tighten the nut on top the poston. That way the piston is sitting inside the shock the way it wants as its tightened. Hope that makes sense.

wreckya 04-28-2014 04:11 PM


Originally Posted by RokleM (Post 13213964)
I have to be honest, I'm a bit perplexed at this point. I was very excited that my BCE arrived today in order to get things put together for tomorrow's race. However, my initial impression has not been astounding. Cut my finger on the sharp outside edge, just in the front section a number of holes are off more than I would expect (confirmed via old and new parts), and it appears that maybe the front droop locations are off by about 3mm at least. They appear to be hanging off about 1mm over the edge, no where near the center of the plate where the stock chassis is. Can you guys look at yours and let me know where the droop screw hits? Is this by design, do I have possibly a one off issue, or is there a step/part here I'm missing and didn't realize? If it's an issue, obviously I can hit up Bill quick, but wanted to see where exactly yours were hitting.

Mine are the same way. I'm running Lunsford hardware on the truck so 4mm button head screws as the droop screws upside down and there ok. Have plenty of droop.

wreckya 04-28-2014 04:13 PM


Originally Posted by wreckya (Post 13221074)
Mine are the same way. I'm running Lunsford hardware on the truck so 4mm button head screws as the droop screws upside down and there ok. Have plenty of droop.

Did u send your chassis back?

wreckya 04-28-2014 04:29 PM


Originally Posted by RokleM (Post 13214202)
Well, the rest of the build went smooth. The front four screws are spaced too far apart and still unknown on the whole droop situation. I will probably do the same and run them upside down for now. I don't have a clear answer on the white spacers, but they seem to cause more issues than they solve. There aren't spacers for the other locations that should require them if you lift the other components (steering, motor mount, etc), so you end up with gaps. I left them out for now until I figure out the function. I also used o-rings under the battery tray because the stock screws are too long given the thinner chassis and stick out of the bottom about .75mm and would just get ground down and rough.

Now I just need to decide, side air or not :D

Are u running the white spacers or did u leave them off? I ran them one day without and they say your suppose to use em, couldn't tell a diff in perdormance. They explained the whole 3mm vs 4mm chassis thing to me and that without them it raises the center of gravity? But guess I'm an idiot cuz i don't understand that at all. Getting the steering brace on was a little tight cuz it sits 1mm higher than the steering post with it on. I got a spacer for the motor mount and used it but the outside of the forward brace is suppose to sit down in that milled out square but it can't with the spacer, and if u wanted u could crank it down into that hole and bend the mount possibly or somethin. It opened up the hole there on me from using it like that so I took washers and ground the sides flat to put under the mount and support it. Battery screws I ground them down cuz Lunsford doesn't make em that short. I am a little worried about the pressure on the steering post and if u raise them with washers the post probably won't sit down in the milled out spot that keeps them from spinning while tightening them down. But when this chassis is shot I will be buying another one, as the truck is hooked up on a medium traction track, love it.

tc5 man 04-28-2014 04:31 PM

How tight do you guys run your steering saver on the HD saver springs ? I have my at 4.15 or so from the stock setting . Im running a Hitec 7954SH not a fast servo really just very torquey.

wreckya 04-28-2014 04:38 PM


Originally Posted by fq06 (Post 13215385)
I don't think flipping the ball stud affects ackerman at all. The flip started in the EB thread, probably to get more bump but not sure, not in front of my truck to see how that is affecting the angle of the rod. Maybe Sramos will comment. Can't see the over under shim count, for whatever reason his setup sheets are missing data on my phone and that goes hand in hand with the flip to know what that is trying to accomplish.

Do you have oil in the shocks? I would think so, but if not that's why its binding.
Does the piston "float" on the shaft? It should have a little play and not really hard to get on. If there is no give between the shaft and the shaft hole in the piston you need to open up the hole just a hair.

The older copper colored pistons needed a little attention to the hole, I've heard people report that the new silver ones don't but my newer silver ones did. The fit was very tight... too tight.

Do u guys know why they run washers on both sides of the ball studs? Like the ones on the Ackerman what would the washers on the bottom do? It's a trick question lol.

wreckya 04-28-2014 04:49 PM


Originally Posted by jmoneym (Post 13216072)
Just finished my build. Finding my Orion 4.5 550 and R10 pro is clogging for some reason. Changed the sensor wire, think it's the ESC. Can I use RX8 to run the 2 pole 550 motor?

I went through a long and painful cogging learning experience with my old LRP's and after working with Associated found out it was from running a gear ratio that was too far off. And yes your right its the ESC. Unfortunately the ESC is usually shot after running it like this. Associated was nice enough to replace mine as they didn't inform people of this. So after you get the right motor and gearing on it if it continues to do it unfortunately the ESC is shot. And I don't know if your motor is right or wrong or if it's your gearing. Call Horizon and good luck.

fq06 04-28-2014 04:49 PM


Originally Posted by wreckya (Post 13221165)
Do u guys know why they run washers on both sides of the ball studs? Like the ones on the Ackerman what would the washers on the bottom do? It's a trick question lol.

Just a place to store your spare washers. Take up the space on the screw... but you can omit the washers and use a shorter screw for cleanliness or leave the stock screw in and it looks a little odd.


Originally Posted by tc5 man (Post 13221143)
How tight do you guys run your steering saver on the HD saver springs ? I have my at 4.15 or so from the stock setting . Im running a Hitec 7954SH not a fast servo really just very torquey.

My collar is 7mm above the chassis but my chassis sits 1mm lower than yours so I would be at 6mm on a stock chassis. XP 1015 servo so just a regular servo and no issues for the past 7-8 months. Nice tight steering with no give from the saver under normal conditions.

wreckya 04-28-2014 04:51 PM


Originally Posted by mkl (Post 13216218)
For those with the Durango alu turnbuckles, how durable have they been?
Are the Lunsford Ti worth it? I crash a lot, so I need some strength, but have opportunity to drop some weight and thought turnbuckles might be an ok place.

Running Titanium around the whole truck so far so good. About 18 packs on truck.

mkl 04-28-2014 04:58 PM

Thanks, looking to get some lunsford

tc5 man 04-28-2014 05:04 PM


Originally Posted by fq06 (Post 13221189)
Just a place to store your spare washers. Take up the space on the screw... but you can omit the washers and use a shorter screw for cleanliness or leave the stock screw in and it looks a little odd.



My collar is 7mm above the chassis but my chassis sits 1mm lower than yours so I would be at 6mm on a stock chassis. XP 1015 servo so just a regular servo and no issues for the past 7-8 months. Nice tight steering with no give from the saver under normal conditions.




Ok so most guys with this truck dont use the stock setting it looks like even with the HD spring . My is tighten about half way or a little less.

iTz Nicholas72 04-28-2014 05:24 PM

1 Attachment(s)
My current setup. Run on an outdoor 1/8 track that is pretty smooth with big jumps and that was medium bite.

Might be worth trying with pink/yellow springs and 2.5 lighter oils for low low bite...

tc5 man 04-28-2014 05:38 PM


Originally Posted by iTz Nicholas72 (Post 13221302)
My current setup. Run on an outdoor 1/8 track that is pretty smooth with big jumps and that was medium bite.

Might be worth trying with pink/yellow springs and 2.5 lighter oils for low low bite...




Looking at that setup i did try to use the outer hole on the Rear hubs with the stock middle inner hole on the tower and i could not get the Rear turnbuckle to stop getting tight even when i readjusted the camber ? I liked that hole much better on the Rear hub to but i had to go back to the middle hole on the Rear hub. Never tried the outer hole on the Front carrier though which im thinking makes the steering smoother and more grip.


All times are GMT -7. It is currently 05:01 AM.

Powered By: vBulletin v3.9.3.9 Patch Level 3
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.