May I introduce the Official Losi DB/TT Pro Thread!

[Outcastblxnut]

My tt pro as of today?

arrma 2400kv 4s power baby?

 

[Brandon1]

Great looking rig. Really like the new body. what all did you change to run 4 s, just the motor or other hardware?

 

[Outcastblxnut]

Great looking rig. Really like the new body. what all did you change to run 4 s, just the motor or other hardware?

Just the motor and I’m running a 19t pinion. Added two motor fans. The spektrum 4s 5000 mah batteries fit perfectly

 

[midad04]

I just picked up a DB Pro this afternoon, Build quality is light years ahead of the two Arrma vehicles I bought two weeks ago that are nearly unusable as purchased. I am a big fan of metal chassis and shocks and this Losi does not disappoint.

To those of you who have gotten heatsinks for the motors, what have you ordered and where did you get it from?

 

[Arrmajunk]

The Losi is a Quality product . It drives well too, however I am disappointed in the Sense that the 3150kv running the Recommended 15t pinion for 3s isn’t very Fast no where near the Proclaimed 50mph best I managed is 42mph with punch and timing cranked up.
I Have just installed a 4000kv Hobbywing 3660. And I’m Using a 14t pinion as my OLD SCBE is Running a Cheap Chinese motor 4200kv on 14t pinion and it hits 53mph I haven’t had a chance to run it yet but I’m hoping for about 50mph

 

[midad04]

Mine feels plenty fast on 3s with the 15t pinion. I'm not looking to send it flying through the air off jumps. I couldn't imagine any case, other than showing it off to someone and saying look how fast it is in a straight line on paved roads where I would need more than 40-45mph. I wonder if the a 16t pinion is acceptable on 3s after adding a heatsink to the motor.

 

[Arrmajunk]

Mine feels plenty fast on 3s with the 15t pinion. I'm not looking to send it flying through the air off jumps. I couldn't imagine any case, other than showing it off to someone and saying look how fast it is in a straight line on paved roads where I would need more than 40-45mph. I wonder if the a 16t pinion is acceptable on 3s after adding a heatsink to the motor.

Hi Update .. Timing made no Difference to Speed, I didn’t have punch on full it is about 44 mph on the 15t pinion punch up Full,
So I ran my 4000kv I managed 48mph on a 14t pinion the motor was cool so I think it can hold a 15t pinion without being too hot, that ought to crack 50mph.
Don’t Get me Wrong if I Solely want a Speed run I would just gear it really high.
but I’m after a healthy balance between Speed and Ability to run it on grass around my little tree circuit .

 

[SpinRush]

I really need a heatsink and fan setup now. I just got a new set of wheels and tires. The car looks so sick. Running 3S and 15T pinion. This thing is going to get hot. Motor and servo are stock. I can’t go back to the original wheels. This looks too good. I’ll one DB PRO for the dirt and this black one for the street. They say these Louise tires are heavy. They look heavy. So much grip on the street though. I won’t buy anything else now.

 

[SpinRush]

I need a little help here. I purchased a couple SAVOX servo horns for my Tenacity DB PRO. I’m running into some issues with the TLR Servo Horn NOT....I repeat NOT being metric. The 25T Spline is not the issue. The problem is the screw point. I have some pics to illustrate this problem.

There are the toys I bought.

That’s the Servo Horn I ordered.

Here is the issue that was brought up.

So I’m looking for the BEST Servo Horn I can get, that matches. I’m not worried about the money. I’m looking for the perfect match servo horn.

HELP!

 

[Alex.M]

I need a little help here. I purchased a couple SAVOX servo horns for my Tenacity DB PRO. I’m running into some issues with the TLR Servo Horn NOT....I repeat NOT being metric. The 25T Spline is not the issue. The problem is the screw point. I have some pics to illustrate this problem.View attachment 123146

There are the toys I bought.

View attachment 123148

That’s the Servo Horn I ordered.

View attachment 123151
Here is the issue that was brought up.

So I’m looking for the BEST Servo Horn I can get, that matches. I’m not worried about the money. I’m looking for the perfect match servo horn.

HELP!

Did you run into trouble with the stock horn? I’m still running stock and it is holding up fine. The alloy does look nice tho.

 

[SpinRush]

Did you run into trouble with the stock horn? I’m still running stock and it is holding up fine. The alloy does look nice tho.

No trouble with the stock horn. It’s plastic and it’s 23T. My new servos are 25T. Here are some pics of the problems I’m running into.

The TLR 25T requires a totally different screw. Also, the height reduces the steering range because the arm hits the body of the steering servo.

Here you can see the size of the 23T Stock Servo. Very intentional move.

You can see the ProTek Servo Horn sits too low. The arm will hit the steering servo with your endpoints at full range.

Another view

This is what “Stock” looks like. Full range is possible due to the height.

I had to order an assortment of Steering Servo Horns. Hopefully, I can solve the issue this week. Someone suggested a different servo horn from another car.

This one pictured below. I should have this tomorrow.

Get a 23T Steering Servo if you don’t want to run into these issues. If you go with a more powerful Servo you will need aluminum. That’s where the problems start.

 

[Shivraaj0247]

Hey! I am looking for a thicker wheel hex option for my car, i stripped out one of the wheel hexes pretty badly, I’d wanna go with a different rim and a thicker wheel hex, if you guys could recommend me something that would be great ?

 

[Arrmajunk]

Hey! I am looking for a thicker wheel hex option for my car, i stripped out one of the wheel hexes pretty badly, I’d wanna go with a different rim and a thicker wheel hex, if you guys could recommend me something that would be great ?

not sure what you mean by thicker ? Thicker as in keeping to12mm but chunkier/deeper or thicker is In going up to 17 mm hex.
I’m sorry I don’t know what 17mm hex hubs will fit,
But I know they do +1mm and so on +1.5mm hubs for the SCBE which I see no reason Why they won’t fit on the Db pro.
They’ll give your car a slightly Meatier stance
Again I don’t the part no. Off the cuff but I know such things exists try wheelspin models that’s where I bought mine from, Assuming you in Uk ?

 

[bobsyourmothersbrother]

Get a 23T Steering Servo if you don’t want to run into these issues. If you go with a more powerful Servo you will need aluminum. That’s where the problems start.

Hey there, just wondering did you solve this?

I have got a TT pro that I race at our local track, and a Savox 1253TG to go into it, I ordered the TLR1557 horn, will I be in for a world of trouble?

https://www.amazon.com/Team-Losi-Servo-Horn-Aluminum/dp/B004TPC5B4

thanks

 

[SpinRush]

Yes, I was able to solve the problem. The solution came from my LHS. I wasted a bunch of money on servos horns 25T. I was just about to give up when I went down to my LHS with the stock servo horn. Tamiya had the best fit. Here are some pictures of the solution. I was able to achieve the angle that I wanted. After that, it was just a matter of setting the end points. I could achieve full turn without any sacrifice.

View attachment 123624View attachment 123625View attachment 123626

Later, I plan to replace the steering arms with aluminum or steel. In this picture, you can see the stock steering arm. The receiver is maxed out because I added a voltage capacitor. You might even notice that I repositioned the receiver. I needed more clearance for the additional plug-ins.

 

[bobsyourmothersbrother]

ah, nice, good to have that sorted.

so mine arrived today and i decided to take another look at things.

So it turns out that the SCTE 3.0 is still using SAE/Imperial screws for all of its parts.

The TT pro? Well, thats metric of course. So any part you upgrade to, that has a thread, and is intended for the SCTE, could be problematic in this way.

My solution was more rough, i slowly drove the metric screw into the imperial hole in and out about 10x. Eventually, the softer alloy reformed to now be a metric thread. Managed to get it all going.

Anyway, I registered to post this and got a lot of value out of the thread so, hi!

Really enjoying the TT pro. Only mod so far is the relocation of the receiver further back, so it doesn't get covered in dirt from the front wheels so much, and now the addition of a really nice servo and horn, which are much faster than the original. Very pleased

 

[Shivraaj0247]

Added M2C Racing 17mm hex adapters and some proline raid 17mm sc wheels with badland mx tires. No hex stripping problems anymore and the thing has tons more grip!

 

[Brandon1]

Added M2C Racing 17mm hex adapters and some proline raid 17mm sc wheels with badland mx tires. No hex stripping problems anymore and the thing has tons more grip! View attachment 123644

Very nice ??

 

[Brandon1]

my receiver came untaped on the last outing. Picked up a waterproof that will fit right behind the servo. Will install before taking it out again.

 

[Shivraaj0247]

my receiver came untaped on the last outing. Picked up a waterproof that will fit right behind the servo. Will install before taking it out again.

Happened to me too, picked up some 3M double sided tape and it hasn‘t come off since, been through mud and water.