FTX Tracer / HBX 16890?

[Ziggy122]

since this truck is an AWD driveline vs 4wd

 

it's very easy to understeer and over steer

 

are the diffs sealed to hold diff fluid?

If so - what we all running?

 

[Gaz!]

15 hours ago, Ziggy122 said:

since this truck is an AWD driveline vs 4wd

 

 

I dont follow this mate, what do you mean?? A  AWD is the exact same as 4WD, or does a 4WD have open diffs as oppose to a AWD being locked??

 

to my knowledge AWD and 4WD are the same, locked or unlocked diffs.

[wombat]

How about filling the diffs with silicone earplugs, that should sort your problem

[bertberr]

No seals in diffs, just some grease in there from stock.  I've put some stickier grease in mine, but lack of centre diff or slipper means you're always going to get fairly major plough on understeer.  Nature of the beast, you get used to it!!!  Handling prowess isn't its forte, being near enough bomb proof is...

 

On a side note, has anybody ripped out the stock 2in1 and gone from 2S to 3S?  Thoughts?  Worth doing?  I'd like a bit more air control at the skate park, so tried some bigger wheels/tyres, but whilst the in-air control was defo better, the woeful handling got even worse, so I put the OG tyres back on.  Thinking I may get the added centrifugal forces I need going 3S on the standard wheels.

[Ziggy122]

21 hours ago, bertberr said:

No seals in diffs, just some grease in there from stock.  I've put some stickier grease in mine, but lack of centre diff or slipper means you're always going to get fairly major plough on understeer.  Nature of the beast, you get used to it!!!  Handling prowess isn't its forte, being near enough bomb proof is...

 

On a side note, has anybody ripped out the stock 2in1 and gone from 2S to 3S?  Thoughts?  Worth doing?  I'd like a bit more air control at the skate park, so tried some bigger wheels/tyres, but whilst the in-air control was defo better, the woeful handling got even worse, so I put the OG tyres back on.  Thinking I may get the added centrifugal forces I need going 3S on the standard wheels.

crud.... no diff oil will work then

maybe the thickest grease I can find 🤣

 

itd be awesome if somebody did make a alu diff case that could hold oil!

 

I'd be game!

 

If somebody made a wide arm set as well, that'd be good to try

wouldn't want massive stance

but adding a cm or 2 may be what it needs to stabilise it better

 

it's small and tricky, I'm sure I'll get less rusty and get used to it again

 

I do believe these have been converted to 3s on YouTube! but needs a separate radio esc motor setup

 

[Joebristol]

I’ve just ordered the HBX 16899a Pro - so the monster truck version with the brushless motor / oil filled shocks / various upgraded metal parts. So cheap too.

 

I actually prefer the look of the truggy version but couldn’t find it in the UK with the full pro spec.

To convert mine to a truggy I assume I need the shell and I’ve read there are different posts to mount the different shell. Anything else? Looking online the shock absorbers on the truggy seem to sit behind the rear bulkhead vs the MT one which has the shocks in front of the rear bulkhead. Are the mounting points there on the standard wishbones for both options does anyone know please?

 

I haven’t had an rc car since the 90’s (other than an HPI nitro / 2nd stadium truck in the early 2000’s for a short period of time) so quite excited to try the new brushless motors. Seems faster for less money than the money spent on a Losi Jrx2 / XX and a 13x2 motor with expensive esc and batteries etc.

Edited December 27, 2024 by Joebristol

[Joebristol]

I got my HBX - had a quick blast round the garden with it. Definitely a triumph of power over handling / grip / control.

 

It occurred to me the suspension is most likely too soft - as it turns it rolls too much then digs in and wants to flip.

 

It’s already got the uprated metal / oil filled shocks. It either needs stiffer springs and / or heavier oil in the shocks. Any ideas on either springs or oil? Thinking maybe 20wt?