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-   Nitro Off-Road (https://www.rctech.net/forum/nitro-off-road-130/)
-   -   Tekno NB48 (https://www.rctech.net/forum/nitro-off-road/718521-tekno-nb48.html)

vandalzzz 04-08-2014 04:30 AM


Originally Posted by JsK (Post 13166969)
There must be some end play. Otherwise it will burn up the bearings. There is no set answer on how many shims due to production differences in cranks. Just shim it so there maybe .5 mm. They tend to loosen up a bit after you run them.

Thanks, seems i need to some more wrench work before first run=) Shimmed it to zero play, because manual doesn't say anything about this.

Graham11 04-08-2014 05:00 AM

So I should probably order 2 back up tanks until the new tanks come in? Is that what I'm hearing in addition to foam under tank?

Bortzilla 04-08-2014 05:08 AM


Originally Posted by 08supermoto (Post 13166153)
Our weekend couldn't have went more similar. I attended the season opener at MRRC out in Long Island,NY...
I broke a tank in practice only to install another one and brake that one also. My first tank wasn't salvageable but my second one I only broke the rear mount so I decided to shove some air-filter foam underneath it and give it my best. That decision helped me finish up the day with a 5th place overall pro nitro buggy. I can't express enough on how good my buggy felt all day...Plenty of questions and compliments throughout the day.....

Can't wait for my next race... Hobby Hut raceway! This weekend.

That track looks awesome...hope I can get out there sometime this summer. Good luck at the Hut!

Graham11 04-08-2014 06:00 AM

JsK should i buy a second clutch set up? others have suggested it.

I believe i have 2 green and 2 yellows springs in there now.

Bortzilla 04-08-2014 06:58 AM


Originally Posted by Graham11 (Post 13167210)
So I should probably order 2 back up tanks until the new tanks come in? Is that what I'm hearing in addition to foam under tank?

Probably not a bad idea if you race on tracks with big air or flat-landing jumps.


Couple Questions- How long do brake pads typically last? Is it normal for them to have indentations in them after their 1st race weekend? Thanks!

JsK 04-08-2014 07:15 AM


Originally Posted by Graham11 (Post 13167210)
So I should probably order 2 back up tanks until the new tanks come in? Is that what I'm hearing in addition to foam under tank?

That's up to you. I only have one spare but thats for both the buggy and truggy. If i break a tank the spare buggy one can go in either one. I guess it
depends on how much peace of mind is worth to you.


JsK should i buy a second clutch set up? others have suggested it.

I believe i have 2 green and 2 yellows springs in there now.
With this being your first year with nitro I would say stick with the stock clutch for now. They work fine, just keep an eye on the shoes mushrooming. 2 green and 2 gold is pretty mild. You can try 4 greens but some motors will
not pull that soft of a clutch off the bottom.

What motor/pipe combo are you running?

Graham11 04-08-2014 07:31 AM

I meant order a second Tekno clutch set up just as a back up. I am running Reds R5c and Reds pipe... its awesome

Graham11 04-08-2014 07:31 AM

is there a good write up somewhere describing how the clutch effects low end/ top end etc...

Hoese37 04-08-2014 07:38 AM

Softer springs make the clutch engage at a lower rpm. Makes the car accelerate better on a loose surface. Best for engines with a lot of low end. Harder springs engage at a higher rpm. Good on high bite tracks that let you really mash the throttle coming out of the corner.

08supermoto 04-08-2014 07:45 AM


Originally Posted by Bortzilla (Post 13167227)
That track looks awesome...hope I can get out there sometime this summer. Good luck at the Hut!

Thanks buddy, hope to see you at a race soon.

Graham11 04-08-2014 07:55 AM


Originally Posted by Hoese37 (Post 13167536)
Softer springs make the clutch engage at a lower rpm. Makes the car accelerate better on a loose surface. Best for engines with a lot of low end. Harder springs engage at a higher rpm. Good on high bite tracks that let you really mash the throttle coming out of the corner.

Great explanation, my 2 main tracks are low-med traction and rough so softer would be best? Should I go all green or leave it 2 green and 2 yellow? I don't a lot of bottom end but I'm still tuning the motor. In Ebuggy I can clear all the jumps easy but w my nb48 it doesn't have the same power yet

Numburn 04-08-2014 08:10 AM

Very good writeup on the tank mods! I prefer to use the 2nd method and retain the nipple.

I had a lot of tank issues at PNB but so did everyone else. A couple of the jumps had a very narrow window to hit the downslopes in and overshooting at all was a 20ft drop onto flat. Specifically I know Kyosho tanks had issues and I heard a lot of Mugen tanks cracked too. With that said the Tekno tanks are definitely made of the wrong material. They are simply too weak for offroad. I went through the exact same thing when I ran for Mugen and the MBX7 came out. With these being the first nitro cars Tekno has produced I completely understand issues like this.

Keep in mind Tekno has a new tank coming out shortly which I witnessed hold up to major abuse at PNB. It is a lot stronger and I believe has the clunk issue resolved. In the meantime, there are a few things you can do to strengthen the current tanks:

Boil the tank to soften the plastic slightly.
Shoe-Goo the mounting tabs to slightly reinforce.
Place foam underneath tank.
Ream tank mount holes so bolt can slide through without having to be screwed in.
Place 2 o-rings underneath each mounting tab for more cushion and to slightly raise tank from chassis.

You want the tank to have a little movement but be secure enough that it doesn't break off of the mounting tabs or smack the chassis hard enough to crack.

andyhitman 04-08-2014 12:08 PM

any one got a good setup for a small track hard packed clay almost a blue groove but just colder small jumps with a lot of tight turns

advance thanks

Hoese37 04-08-2014 05:02 PM


Originally Posted by Graham11 (Post 13167585)
Great explanation, my 2 main tracks are low-med traction and rough so softer would be best? Should I go all green or leave it 2 green and 2 yellow? I don't a lot of bottom end but I'm still tuning the motor. In Ebuggy I can clear all the jumps easy but w my nb48 it doesn't have the same power yet

I think the green/gold combo is a good starting point. You could try going all gold to get a bit more snap.

Graham11 04-09-2014 10:58 AM

about to place a spare parts order from tekno... besides the gas tank any other things recommended, specifically parts that specific to the NB because i have tons of eb48 sppares like arms and such.


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