Build Thread Warby's Traxxas Nitro Sport Pro restoration

[Littlemotor]

Looking great man! I’m enjoying your quality shots, and meticulously assembled parts! Very nice brotha!!

 

[Warby]

Looking great man! I’m enjoying your quality shots, and meticulously assembled parts! Very nice brotha!!

Thank you @Littlemotor

 

[WickedFog]

Why, thank you sir

What diameter is the spring perches on these anodized shocks? Can you get me that info, as well as the stock shock spring perch diameter? Pics of everything together would help too. All the shock parts you're working with.

And your stock shocks, are they the long and xx-long like the manual says? It's kinda funny the anodized ones are long and x-long instead of xx-long, according to the manual.

 

[Warby]

What diameter is the spring perches on these anodized shocks? Can you get me that info

Spring perch on these anodized alloy shocks=
OD 13.5mm (14mm)
ID 3mm

4761 rears

as well as the stock shock spring perch diameter?

Stock plastic shocks 3762(rears):
Perch=
OD 15mm
ID 3mm
Spring ID 15.5m

Pics of everything together would help too. All the shock parts you're working with.

Plastic stock rears stocks (left), aluminium rear shocks (right).

And your stock shocks, are they the long and xx-long like the manual says? It's kinda funny the anodized ones are long and x-long instead of xx-long, according to the manual.

Yes they are the stock original shocks so should be the "long" fronts and "xx-long" rears.

Yes I noticed that the aluminium rears were only x-long but I didn't think that would be a problem as I was going to let it sit lower anyway.



Hope this is clear enough.

BTW, all the photos and measurements are of rear shocks only. Diameters should be the same for fronts. Only lengths change obviously.

 

[Chubaka]

I'm a bit confused with this one. Hopefully one of you old traxxas guru's can enlighten me.

I started assembling the new optional aluminium shocks I purchased.

TRAXXAS 4760: Shocks, Long, front (hard-anodized & PTFE-coated T6 aluminum) w/o spring
TRAXXAS 4761: Shocks, X-long rear (hard-anodized & PTFE-coated T6 aluminum) w/o spring

Note that they don't come with springs.
View attachment 226753


The original standard Shocks are the "Ultra shocks" which are the plastic housing shocks:

3760 front shocks, 2458 front springs
3762 rear shocks, 4457 rear springs


There is no listing for springs for the optional aluminium shocks, so I presumed the Ultra plastic shock springs would fit the aluminium shocks. I was wrong. They don't. They are too big in inside diameter. But I can't see what springs to use on the aluminium shocks.

So my questions are:

• What springs fit the aluminium shocks?
• Should I have purchased the other optional shocks, the Pro-level Big-bore shocks instead?
• Or do I use the spring and retainers(perch) from the plastic shocks, on the aluminium shocks?

Here's the listings:
View attachment 226764
View attachment 226757


@WickedFog @Chubaka @Beer_Goggles_RC
@9x19

Only info i can find. I was assuming they were the same as the ultras even they look skinny. I have a pink spring and grey aluminum body that would fit. They were losi. Xxxt I think.

 

[Warby]

Only info i can find. I was assuming they were the same as the ultras even they look skinny. I have a pink spring and grey aluminum body that would fit. They were losi. Xxxt I think.

View attachment 226834

Thanks for that. It's weird that the Nitro sport is not on that list but the aluminium shocks are on the Nitro sports optional parts list.

 

[Chubaka]

Thanks for that. It's weird that the Nitro sport is not on that list but the aluminium shocks are on the Nitro sports optional parts list.

I remember seeing them too and wanting them. The above losi shocks were on my nitro sport when I got it. It used to be raced in kissimmee. That's why I never bought the trx ones.

 

[Warby]

While we are waiting on more info on the springs for the aluminium shocks, I started rebuilding the standard Ultra shocks, as I'll use them on the second build.

Apart from the rusted shock rods, they are in okay condition. They weren't leaking and the rod ends are still tight.

New rods and seal kit:

The kit 2362 also does the big bore shocks so it has extra stuff.

I used Molykote 111 compound on the o-rings and the supplied Traxxas shock oil which I'm pretty sure is 30wt.

 

[WickedFog]

While we are waiting on more info on the springs for the aluminium shocks, I started rebuilding the standard Ultra shocks, as I'll use them on the second build.

View attachment 226999
Apart from the rusted shock rods, they are in okay condition. They weren't leaking and the rod ends are still tight.

New rods and seal kit:
View attachment 227000

The kit 2362 also does the big bore shocks so it has extra stuff.
View attachment 227001
View attachment 227002
View attachment 227003

I used Molykote 111 compound on the o-rings and the supplied Traxxas shock oil which I'm pretty sure is 30wt.
View attachment 227004

E-clips
Snap rings

Can you get me a pic of the anodized shocks with the 15.5mm springs on them and a good view if the spring perches? A front and rear? Apparently, you gotta draw these folks I am talking to a picture, because they are all saying the Ultra shock springs are what is supposed to be used.

Still waiting to hear back from Traxxas, from 2 different contacts there.

I am wondering if you don't need to go with a set of their TRX4 springs. But I can't imagine the spring rate will be correct, so maybe you need to go with some other springs off a vintage SCT or buggy.

 

[Warby]

E-clips
Snap rings

Can you get me a pic of the anodized shocks with the 15.5mm springs on them and a good view if the spring perches? A front and rear? Apparently, you gotta draw these folks I am talking to a picture, because they are all saying the Ultra shock springs are what is supposed to be used.

Still waiting to hear back from Traxxas, from 2 different contacts there.

I am wondering if you don't need to go with a set of their TRX4 springs. But I can't imagine the spring rate will be correct, so maybe you need to go with some other springs off a vintage SCT or buggy.

Rears. As you can see, the spring is too big for the aluminium anodized shocks perches.

Fronts. Started Ultra springs on the Aluminium shocks. Again, springs to big for the aluminium shock perches.

 

[WickedFog]

Yes I noticed that the aluminium rears were only x-long but I didn't think that would be a problem as I was going to let it sit lower anyway.

I am sorry, I missed this part Warby. Just thinking out loud here. What limits your lower A-arms downward travel? The shock pistons?

Rears. As you can see, the spring is too big for the aluminium anodized shocks perches.
View attachment 227005
View attachment 227006

Give me a second to remove the fronts.

That's plenty good man. If they can't clearly see those don't work, then they can clearly consider themselves to be morons, and they should stop talking to anyone in this hobby about RC stuff.

 

[Warby]

I am sorry, I missed this part Warby. Just thinking out loud here. What limits your lower A-arms downward travel? The shock pistons?

Yes the pistons. But the piston also has a spacer under it, so I guess the spacer. No droop screws.

 

[WickedFog]

Yes the pistons. But the piston also has a spacer under it, so I guess the spacer. No droop screws.
View attachment 227009

They should have done a similar bladder looking soft o-ring in the bottom assembly to cusion the shock. A sliver of fuel line tubing does the trick. But you're already shortening the travel. So you planning on driving this onroad mainly? Or at all? A bit lowerish and squatted on-road version would be pretty badass even if that is what this accidently turns out to look like. If displayed, it gives ya 2 options on the shelf.

Are we racing on the sand?

Or on the asphault?

You know how hard it was to build this on the extended chassis of the Turbo Scorpion? Mentally taxing. Especially since I have loved this thing since I first saw it. But that extended chassis turned out badass on this one. It went from a sand dune buggy to a flat out chit and git drag racer, no matter the medium under it's feet.

So I'd be trying to display it with options

 

[Warby]

So you planning on driving this onroad mainly? Or at all? A bit lowerish and squatted on-road version would be pretty badass even if that is what this accidently turns out to look like. If displayed, it gives ya 2 options on the shelf.

It'll mainly going to be a shelf queen. I may try it on the road once but I'm going to keep it pretty. The second spare parts build will be the basher.

I just thought it would look good sitting a little lowered but I'll see when it's done and on its boots.

I was actually considered buying some of the Traxxas 2478A Anaconda tyres for a road use option.

 

[Warby]

Are we racing on the sand?View attachment 227024

Or on the asphault?
View attachment 227025

You know how hard it was to build this on the extended chassis of the Turbo Scorpion? Mentally taxing. Especially since I have loved this thing since I first saw it. But that extended chassis turned out badass on this one. It went from a sand dune buggy to a flat out chit and git drag racer, no matter the medium under it's feet.

So I'd be trying to display it with options

Cool bug

 

[Chubaka]

It'll mainly going to be a shelf queen. I may try it on the road once but I'm going to keep it pretty. The second spare parts build will be the basher.

I just thought it would look good sitting a little lowered but I'll see when it's done and on its boots.

I was actually considered buying some of the Traxxas 2478A Anaconda tyres for a road use option.
View attachment 227028

Those bandit 2 2s will be too small imo.

 

[Warby]

Those bandit 2 2s will be too small imo.

Ok, thanks for the heads up. Any other suggestions for 2wd onroad tyres?

 

[WickedFog]

I'd put the Jato Anacondas on it. Those things, for whatever reason, are pretty good on even some dirt and grass. But killer on pavement. Aren't they 2.8 Chewy?

 

[DavidB1126]

Yea the stadium truck ones for the rustler are 2.8 LPs.

 

[Warby]

I'd put the Jato Anacondas on it. Those things, for whatever reason, are pretty good on even some dirt and grass. But killer on pavement. Aren't they 2.8 Chewy?

Yea the stadium truck ones for the rustler are 2.8 LPs.

Copy that. Thanks

Damn it, 2.8's are more expensive