[How To] RS10 BTA : Behind The Axle modification

[Big Pitt]

Hello to all,
I'm doing the BTA mod and it's not so simple...A big help come from CPE website:
http://www.crawfordperformanceengine...roducts_id=121

But the main difference is that I have lower bent link!!!
So I had to make some mod to the mod
Here are the pics, with the try and error and almost finish product.

The servo plate with unnecessary new holes and smole holes redrill at the right dimention.I also had to trim the edge of the plate.


Because of the bent link I had to raise the top steering link using a 9mm ( 0.354 in)long tube fitting just right for a M3 screw, I also had to use a new M3 screw cut at 33mm ( 1.299 in) and a self locking nut


Also because of the bent link I had to trim the rod that is screwed to the servo and also the screw it self...



Finnaly I had to trim a piece of the axle housing to be able to have a full throw.


I havent look yet at the other side of the axle... More pictures to come to follow the mods.

But right now I already see a problem: I think that I'll have to remove the motor to srew the servo in place...

To be continued...

[xkill]

Keep the updates coming! ;)

[Big Pitt]

Hello,

The front is done

Here are the last pics.

I had to cut a piece on both side of the axle housing to have a full throw, I also had to shortent one of the two rods making the top steering link to be able to have a straight wheel
alignment:


To screw the servo on his plate I used a M3 screw cut at 18mm (0.708 in), a washer and a self locking nut, screwed from the outside.

It's really a tight fit:


But everything work great:

http://www.youtube.com/watch?v=Qu2a6HmxKcc

Here is what I have as left overs:


Now I have to do the same on the rear side.

I hope it will help some of you.

[CPE MT]

I wouldn't recommend doing the rear as that will put all the steering links in front of the axle where they can easily snag on rocks.

[Docwolf]

but they are above the links, the idea is to improve approach angles. with your links on the inside, your angles are much greater, i run my rears in front of the axle and it works great.

[Big Pitt]

So, according to you no need to do rear BTA...If so it will save me some works

[Docwolf]

i would say it is personal preference, i like mine switched.

[xkill]

I would not do it to the back but it will always be a personal choice...

So i say, go for it and take pictures!

[Big Pitt]

It's a personal choice, BUT if it's not a good practical choice, I don't want to cut pieces here and there for a "unusefull" result...
As for the steering radius I'm happy with what I have with the 4WS for the moment.

[Docwolf]

watch that throw too, if it goes to far, the dog bones will walk out of the cups, i noticed after i did mine that the knuckles hit hard on the stops and flexed some, i just cut down my dual trim on the hand held and all is good now.

[xkill]

The original knucles flex too much, and now the leverage is incriesed with the spacer for the servo bar...

But if you don't like it you can always upgrade to aluminium ones

[yacos]

That motive are those that you have and that such go............................. que motores tienes puestos y que tal van esos motores gracias

[FATBOYrs10]

i am new to this been at it only about a month or so but i have already built my own chassis and links out of delrin got about 40 bucks in it i also done a bta setup on it but i didnt have to cut my servo mount at all put the drag link between the servo horn an axle will try to get some pics up in the next day or so very informitive site it was where i got the idea to build my own chassis thnx

Originally Posted by Big Pitt

Hello to all,
I'm doing the BTA mod and it's not so simple...A big help come from CPE website:
http://www.crawfordperformanceengine...roducts_id=121

But the main difference is that I have lower bent link!!!
So I had to make some mod to the mod
Here are the pics, with the try and error and almost finish product.

The servo plate with unnecessary new holes and smole holes redrill at the right dimention.I also had to trim the edge of the plate.


Because of the bent link I had to raise the top steering link using a 9mm ( 0.354 in)long tube fitting just right for a M3 screw, I also had to use a new M3 screw cut at 33mm ( 1.299 in) and a self locking nut


Also because of the bent link I had to trim the rod that is screwed to the servo and also the screw it self...



Finnaly I had to trim a piece of the axle housing to be able to have a full throw.


I havent look yet at the other side of the axle... More pictures to come to follow the mods.

But right now I already see a problem: I think that I'll have to remove the motor to srew the servo in place...

To be continued...

[Docwolf]

I used the stock holes and trimmed the plate to clear the horn, all depends on the setup, he did it this way mainly due to the bent links, mine are still straight. i am holding off on doing much more till i can get my hands on a 1/6 body.

[shaggy2112]

ttt ...to make it easier to search on my phone...plannning on doing this mod...thx

[bmxwayne]

i just did this mod with ease only difference is i used the other hole in the knuckle for the servo to knuckle link gives a little less angle on the link