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Hot Bodies TCXX

Old 09-26-2017, 02:22 PM
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Originally Posted by Daniel Zero View Post
Hi,

I'm looking for a spur & pinion combination that fit (!) in the TCXX (incl. the upgrade motor holder from 2014) to reach ca. 5.00 (48dp) and 4.50 (64dp). I tried a lot but I'm a bit tired sending stuff back to the RC shop...

Any ideas?
what gears do you currently own? and is that the final drive ration you want? or are you talking the ratio at the spur/pinion only?

spur and pinions - then people can help you out from there.

neither of those are too difficult to obtain
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Old 09-26-2017, 02:45 PM
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Originally Posted by Daniel Zero View Post
Hi,

I'm looking for a spur & pinion combination that fit (!) in the TCXX (incl. the upgrade motor holder from 2014) to reach ca. 5.00 (48dp) and 4.50 (64dp). I tried a lot but I'm a bit tired sending stuff back to the RC shop...

Any ideas?
just going quickly here

the biggest 48P spur gear available is a 96t. so using that, you'll need a 37t pinion (which will give you a 5.05 FDR), so you'd probably wanna grab a 36T and a 38T in case you don't want to be 'over' the 5.0

for 64p, things get a little easier.. starting with a 100t spur, a 43t pinion will get you to a 4.53 FDR - so as with the 48p things, grab a 42t and 44t pinions, just in case

just a question - why are you locked into those 2 ratios? i know for mine, i have varied from a 2.96 all the way to a 4.5 depending on the track i'm racing at. more wide open (ie, long straights and flowing turns, not 180* switchbacks), a lower FDR is better. something tights with lots of 'hard on the brakes' type corners, a higher FDR is what you'd want
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Old 09-27-2017, 10:09 AM
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I believe the final drive ratio for TCXX and TCX are the same. So given that, here's what fits. Note that I have this setup for the spurs that I have. Obviously, if the cell is blacked out, it means that it doesn't fit.
Attached Thumbnails Hot Bodies TCXX-capture.png  
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Old 10-05-2017, 07:09 AM
  #2104  
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OK, after some tries I found some that fit well:

Spurs: Arrowmax
Pinions: Robitronic


48p

pinion: 32
spur: 74
= 4.51

pinion: 36
spur: 74
= 4.01



64p

pinion: 45
spur: 104
= 4.51

pinion: 39
spur: 100
= 5.00

Works fine!

I choosed those FDRs because of our 17,5 club race rules.
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Old 10-11-2017, 05:07 AM
  #2105  
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Default TCXX carpet racer

I am setting my TCXX up as a carpet racer for this winter. I have low shock towers, Xray SLP shocks, Roche floating servo mount and I have done the raised top deck mod with screws in just the back of the lay shaft holder and run the 2mm top deck.

I have an opportunity to purchase the Arrowmax Aluminium chassis. Would people recommend this for carpet racing and will it make a big difference to handling?
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Old 10-12-2017, 10:51 AM
  #2106  
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Originally Posted by dvaid852456 View Post
I am setting my TCXX up as a carpet racer for this winter. I have low shock towers, Xray SLP shocks, Roche floating servo mount and I have done the raised top deck mod with screws in just the back of the lay shaft holder and run the 2mm top deck.

I have an opportunity to purchase the Arrowmax Aluminium chassis. Would people recommend this for carpet racing and will it make a big difference to handling?
I like the chassis, in fact I had two on both on my TCXX cars. But it is heavy and with today's weight limits, it may be too heavy.
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Old 10-13-2017, 04:23 AM
  #2107  
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Originally Posted by John Wallace2 View Post
I like the chassis, in fact I had two on both on my TCXX cars. But it is heavy and with today's weight limits, it may be too heavy.
I think it will add on about 50g? I'm currently at 1375 so I'll end up at 1425 which is a little heavy compared to the 1350g minimum. I already have a titanium screw kit, not sure how I could shed any more weight?

I've ordered 2, possibly the last 2 in the world from Speedy RC in Australia! Great price on them and arriving in 6 days. I'll do some testing on some club nights to compare.
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Old 10-21-2017, 10:33 AM
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I'm using a second-hand TCXX currently as an entry in the world of asphalt/indoor racing (at least I paid too much for it ).

Another question about the Big Bore dampers: I've got the whole dampers but the original ball ends (where you attatch the dampers to the chassis arms on the bottom) seem too long... (7 mm height on the lowest point ). Are there alternatives for shorter ball ends...?
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Old 10-23-2017, 06:52 AM
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Originally Posted by dvaid852456 View Post
I think it will add on about 50g? I'm currently at 1375 so I'll end up at 1425 which is a little heavy compared to the 1350g minimum. I already have a titanium screw kit, not sure how I could shed any more weight?

I've ordered 2, possibly the last 2 in the world from Speedy RC in Australia! Great price on them and arriving in 6 days. I'll do some testing on some club nights to compare.
I've built up my TCXX on the aluminium chassis and it has taken the weight up from 1375 to 1422. An increase of 47g. Just from trying to twist the chassis it feels much stiffer. I'm hoping to test it at a local club night soon. I'm going to use the same setup that I ended up on with the carbon chassis as a start.
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Old 10-23-2017, 06:56 AM
  #2110  
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Originally Posted by Daniel Zero View Post
I'm using a second-hand TCXX currently as an entry in the world of asphalt/indoor racing (at least I paid too much for it ).

Another question about the Big Bore dampers: I've got the whole dampers but the original ball ends (where you attatch the dampers to the chassis arms on the bottom) seem too long... (7 mm height on the lowest point ). Are there alternatives for shorter ball ends...?
You could cut them down providing there is enough thread left to screw in the shock shaft. Failing that you could purchase any 1/10 shock ball end with a 3mm hole for the shock shaft.
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Old 11-16-2017, 08:01 AM
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Originally Posted by dvaid852456 View Post
I've built up my TCXX on the aluminium chassis and it has taken the weight up from 1375 to 1422. An increase of 47g. Just from trying to twist the chassis it feels much stiffer. I'm hoping to test it at a local club night soon. I'm going to use the same setup that I ended up on with the carbon chassis as a start.
The car went well with the new chassis. I improved my lap times and the car felt more consistent.

With some weight saving parts I have managed to get the weight down to 1346!! I actually have to add some weight now. I could get the new Bitty Design M410 Ultra Lite shell and save a further 15g- 20g and place the weight down lower.

The parts I changed were:

4g - Custom made Grade 5 Titanium hinge pins (300mmx 3mm rod and cut to size) 6.99

3.6g - 18 Aluminuim M3x8mm screws for the topdeck and bulk heads saving (0.2g per screw) 5.80

20g - Lightweight Mazda Speed 6 shell 23

36g - Hobbywing XR10 Pro Stock spec ESC plus USB Link (14AWG wire instead of 12AWG previously. Great little ESC and improvement in performance as well as weight saving) 121

6.8g - Avid 4.9mm Titanium ball studs and Xray Aluminium turnbuckles (very pricey for little weight saving but free'd up suspension and easier to remove for maintenance) 75

2g - 4.9mm Aluminium ball studs for roll bars 15

4.4g - Pro4 servo mount as fan holder. Drilled and countersunk chassis behind motor 0

Last edited by dvaid852456; 11-16-2017 at 09:10 AM.
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Old 11-30-2017, 08:44 AM
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Does anyone know if the pro5 c-hubs might fit into the TCXX or if there are any other alternatives...?
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Old 11-30-2017, 03:16 PM
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Originally Posted by Daniel Zero View Post
Does anyone know if the pro5 c-hubs might fit into the TCXX or if there are any other alternatives...?
the c-hubs changed with the Pro5, prior the TCXX, TCX, cycloneTC and cyclone all used the same
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Old 11-30-2017, 03:17 PM
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Originally Posted by dvaid852456 View Post
I've built up my TCXX on the aluminium chassis and it has taken the weight up from 1375 to 1422. An increase of 47g. Just from trying to twist the chassis it feels much stiffer. I'm hoping to test it at a local club night soon. I'm going to use the same setup that I ended up on with the carbon chassis as a start.
where did you happen to find an aluminum chassis for the TCXX at? i've dragged my feet, but might wanna try and find one before they're too scarse
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Old 12-07-2017, 09:17 AM
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Originally Posted by k_bojar View Post
where did you happen to find an aluminum chassis for the TCXX at? i've dragged my feet, but might wanna try and find one before they're too scarse
Already too late I think. I found 2 on Speedy RC in Australia. I live in the UK and he did me a great deal on them both. Arrowmax nor anywhere else seemed to have any left unfortunately.
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