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Tekno RC EB48.3 Thread

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Old 03-13-2017, 12:03 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Tekno RC EB48.3 Thread
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Welcome to the EB48.3 Wiki


What option parts should I consider buying with a new kit?
None are required but we recommend the following:

Springs:
Low Grip Track:
TKR8772 – Yellow Low Frequency Rear Springs and TKR8762 – Grey Low Frequency Front Springs

Low to Medium Grip Track:
TKR8773 – Orange Low Frequency Rear Springs and TKR8763 – Black Low Frequency Front Springs

Medium to High Grip Track:
TKR8774 - Red Low Frequency Rear Springs and TKR8764 - Pink Low Frequency Front Springs

TKR5199B – HRC Rear Hubs (L/R, CV or uni, EB/NB/ET/NT48/48.3) - Improves stability of the rear on mid to corner exit. Able to be on power earlier on corner exit.

TKR6146 - CNC Delrin Shock Cartridge Set

TiNi Shock Shafts
-TKR6017T (front)
-TKR6061T (rear)

This car is very durable. Here are the spare parts that I recommend you keep on hand:
TKR5020 – Hinge Pins (inner, front/rear)
TKR6061T – Rear Shock Shafts w/ TiNi Coating and TKR6017T – Front Shock Shafts w/ TiNi Coating
TKR5286 – Front Suspension Arms and TKR5184 – Rear Suspension Arms
TKR5194 – Spindle Carriers
TKR6009 – Shock O-Ring and Bladder Set (for 2 shocks)

Tips and Tricks

List of Vehicle Setup Adjustments and Build Tips can be found here. There are several videos and articles detailing the building of shocks, diffs, camber links, etc.

Page 3 Step K-3
Put the screw in upside down so that the head of the screw is in the hex spot that's molded into the spindle. This will aid in clearance in full droop / full steering.

Page 12 Step I-2
Use no less than 4 shims on the steering spindle to limit steering throw. I actually just use one 2mm ball stud washer from my 10th scale stuff since each shim is .5mm.

Setup Sheets:
Setup sheets for all Tekno RC vehicles can be found here.

Warranty Policy:
Tekno RC is the only company in the industry that will give 50% off of parts if returned to them using the General Warranty return policy found on their website. The parts can be lightly used or completely abused, as long as the part is still being produced it's covered!

Piston Drills:
Some of our setups recommend using pistons that are enlarged. For instance 4x1.9 or 3x2.0. To drill the pistons we recommend the following:
GMK Supply Piston Drill Set
16PC Metric Bit Set Metric Sizes 2.00 to 3.00 MM.

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Old 10-23-2016, 03:06 PM
  #2386  
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Originally Posted by jason07
I tried searching and didn't find the exact answer.

I'm struggling with off power steering (or just getting through a corner tight vs taking it wide)

I used the Joe Bornhorst setup but I have gotten so far away from that that I'm not sure what to call it.

I am using 7/7/5 in the diffs and I believe 425/ 475 in the shocks. The car just won't turn into the corner, I can't comment if its getting out of the corner well because I have to go so slow to setup for the exit.

Any help would be appreciated.
Please post a setup sheet so I can offer help specific to your setup. Would recommend looking at your diffs and make sure they're free. Off the top of my head, raising the rear ride height or dropping the front. Lighter front sway bar should help a lot. Removing one or two steering stop washers.
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Old 10-23-2016, 06:26 PM
  #2387  
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Originally Posted by jetgsr
Whats the surface your running on. Is it loose, dusty low grip, medium grip and jumps sizes. Maybe try going down in diff oils. I run 5/5/3 on a dusty low grip track and get great turn in and out of corners with 2 degrees camber with 1 degree toe on the front.
It's probably a medium grip medium sized track. Jumps aren't really that big and it has some tight technical turns which is my biggest issue.
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Old 10-23-2016, 06:33 PM
  #2388  
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Originally Posted by shannow
What roll centers are you using ? And ride height ?
The droop is 120f and 134 rear

ride height is 28/28
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Old 10-23-2016, 06:34 PM
  #2389  
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Originally Posted by Dragonfueled
I was having that issue also. Removed both swaybars and it helped allot. Also reduce rear toe.
If only I knew what the dots meant on the pill inserts.....lol I would be happy to reduce the rear toe
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Old 10-23-2016, 06:38 PM
  #2390  
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Originally Posted by MattDub
Please post a setup sheet so I can offer help specific to your setup. Would recommend looking at your diffs and make sure they're free. Off the top of my head, raising the rear ride height or dropping the front. Lighter front sway bar should help a lot. Removing one or two steering stop washers.
Honestly, I have changed it so much that I don't even know where it is. It was the Ryan Lutz labor day shootout from 9-6-15.

I'm going to blow the whole car apart this week and change everything back to that original setup and start again.
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Old 10-23-2016, 06:49 PM
  #2391  
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Originally Posted by MattDub
Please post a setup sheet so I can offer help specific to your setup. Would recommend looking at your diffs and make sure they're free. Off the top of my head, raising the rear ride height or dropping the front. Lighter front sway bar should help a lot. Removing one or two steering stop washers.
Here's mine:
Attached Files
File Type: pdf
EB48.3 setup.pdf (463.1 KB, 139 views)

Last edited by MX304; 10-23-2016 at 07:05 PM.
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Old 10-23-2016, 06:57 PM
  #2392  
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Originally Posted by MX304
Here's mine:

dont see it :/
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Old 10-23-2016, 07:00 PM
  #2393  
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Originally Posted by deceit
dont see it :/
Yeah I can't get it to attach. Keeps saying file size is too big. Anyone know how to reduce the file size of a .pdf?

EDIT: Maybe this will work...
Attached Files
File Type: pdf
EB48.3 setup.pdf (463.1 KB, 183 views)
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Old 10-23-2016, 10:13 PM
  #2394  
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Originally Posted by jason07
It's probably a medium grip medium sized track. Jumps aren't really that big and it has some tight technical turns which is my biggest issue.
One of the easiest things you can try is removing the steering stop washers. A lot of setups call for 3-4 washers but for my particular driving style I just can't use them. I run the screw only. This buggy has a ton of steering built into it so a lack of steering on a tight track should not be an issue. Keep us posted on what you try and we'll try to get you sorted.
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Old 10-24-2016, 01:36 AM
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I removed my rear sway bar, pink springs up front 10/7/3 diffs rear ackerman arm position and removed 2 of the bump steer washers on the ackerman arm. locked down my servo saver, And I had to reduce my epa on my steering because it was so twitchy until I got used to how well it turned. light years better hope this helps
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Old 10-24-2016, 01:38 AM
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I also ran less droop I just ey ball'd it about 3/4 of a turn on the screw and that helped when coming into tight turns after being hard on the power
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Old 10-24-2016, 04:19 AM
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From your setup sheet I'd try 24mm or less front ride height and 1° toe out front.
The camber links are already giving you quite a low front RC compared to the rear RC to a car that, as said, has tons of steer.

My two cents as some says

Edit: Something just went across my mind : what tires are you using ? Sometimes it's as simple a that.
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Old 10-24-2016, 05:57 AM
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Originally Posted by MattDub
Please post a setup sheet so I can offer help specific to your setup. Would recommend looking at your diffs and make sure they're free. Off the top of my head, raising the rear ride height or dropping the front. Lighter front sway bar should help a lot. Removing one or two steering stop washers.
Matt, the biggest thing that I have found is guys are using other brand oils in their shocks and diffs and they don't feel the same. I was one of them. I switched to PT since the rest of the team used it and voila! My car does everything right all of a sudden.

If you don't want to switch fluids, I suggest going thinner than whatever is on the setup. If it says 7-7-5, try 5-5-3. In general PT seems to have a feel of being 2k thinner on diff fluid and 1/2 wt (50 or so cst) on oil.
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Old 10-24-2016, 05:59 AM
  #2399  
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Originally Posted by jason07
The droop is 120f and 134 rear

ride height is 28/28
See my reply to Matt about the oils. Also you pretty much always run the front lower than the rear. I usually am 2mm lower in the front, but some guys go 3-5mm lower. Start at 2mm and see how you like it.
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Old 10-24-2016, 06:34 AM
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Originally Posted by shannow
From your setup sheet I'd try 24mm or less front ride height and 1° toe out front.
The camber links are already giving you quite a low front RC compared to the rear RC to a car that, as said, has tons of steer.

My two cents as some says

Edit: Something just went across my mind : what tires are you using ? Sometimes it's as simple a that.
My tire choice depends on how much dust the track has on a given day. If it's dusty I'll run something like a Grid Iron II or Holeshot. If it takes rubber and gets a groove I'll go to a Blockade or switchblade. Those are common choices among everyone racing here.
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