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Message par moon839 le Lun 16 Mar 2015 - 1:30

bonjour a tous ,
donc j'ai acheter ce buggy qui est très bien enfin pour moi c'est sur réglable de pratiquement partout devant et derrière et avec quelque options il sera parfait,donc c'est le nouveaux avec combo hobbywing esc 100A et moteur 4 poles 2350 kv . donc au début je rouler en 3S et depuis hier j'ai acheter 2 lipo 4S team orion 5300 mHa 50C avec led de contrôle , comme ça je peut rouler un peut plus longtemps .
j'ai rouler donc en 4S et oui franchement ça marche beaucoup mieux ça accélère plus fort et roule plus vite,mais j'ai une petite question quelle pignon moteur es que je peut mettre pour gagner un peut de vitesse. merci pour vos réponses .
donc voici les photos.
[img]HobbyTech Buggy EPX2 1/8 tt 20150217[/img]
[img]HobbyTech Buggy EPX2 1/8 tt 20150218[/img]
[img]HobbyTech Buggy EPX2 1/8 tt 20150219[/img]
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[img]HobbyTech Buggy EPX2 1/8 tt 20150310[/img]
[img]HobbyTech Buggy EPX2 1/8 tt 20150311[/img]

moon839

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Message par patrolit le Jeu 2 Avr 2015 - 9:28

I have purchased 2 of these buggies in the first week of march this year (2015) They are a lot of fun, running 4s lipo's in both vehicles.

Unfortunately both motors have failed with in a couple of weeks of use, one is a overheat... no warranty and the second looks like a seized bearing and has been sent back for warranty claim.

All the tires separated from the rims with in the first battery pack... not really happy about this, ended up buying some LOSI rims and tires to replace the factory ones.

Please check your diff mesh... all 4 diffs have failed very very quickly as they are not set up properly form factory. I have also put in a warranty claim for them which was approved yesterday to get the pinions replaced.

I am in Australia.

Here is a link to a thread about my diffs.
http://www.ultimaterc.com/forums/showthread.php?t=221059
http://www.rctech.net/forum/electric-off-road/869162-diff-mesh-problem.html


I am generally very happy with this cars performance. At this point Hobbytech have steeped up and helped with good customer service for the diffs, waiting to see what happens with the Brush less motor. PLEASE keep a temp gauge handy and double check you motor temps. They are running a 13t spur and 46T crown wheel here.

We get 90 days warranty here. They have a nice list of upgrade parts as well.

NOTE: The center diff crown wheel eats through the side of the battery case....
patrolit
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Message par patrolit le Jeu 2 Avr 2015 - 11:29

Picture of Pinion failure... same on all 4 diffs.

HobbyTech Buggy EPX2 1/8 tt Rear%20pinon_zpsajcpusxf

HobbyTech Buggy EPX2 1/8 tt Front%20pinon_zpsedtpc90h

HobbyTech Buggy EPX2 1/8 tt Diff%20failure_zps34sedwbs

patrolit
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Message par patrolit le Jeu 2 Avr 2015 - 11:35

Upgrade option lists...

HobbyTech Buggy EPX2 1/8 tt Hobbytech%20optional%20parts%20page%201_zpswl7ckvkv

HobbyTech Buggy EPX2 1/8 tt Hobbytech%20optional%20parts%20page%202_zpsnqy3dbuk
patrolit
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Message par moon839 le Jeu 2 Avr 2015 - 23:28

moi j'avais les diff complétement vide donc j'ai rempli avec de huile silicone pour diff et mis de la graisse dans le boitier de diff sur le pignon et je n'ai aucune usure ni de jeu entre le pignon d'attaque et la couronne

moon839

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Message par patrolit le Ven 3 Avr 2015 - 2:49

My spider gears have only a little grease in them, the outer diff area (crown/ pinion area) was totally dry. The crown / pinion alignment was not even close, not shimmed correctly. I am know aware of another car that has the same issue as mine, huge amount of back lash on the pinion.

Moon how many battery packs have you put through your car? And do you use it on dirt track / jumps etc...? I do really like the EPX2 set-up, and the way it handles around a track. They are a mid price car here in Australia, $500 Aus, compared to a HPI Vorza at $850 Aus.

So good value for money if they don't have any issues.
patrolit
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Message par patrolit le Ven 3 Avr 2015 - 3:05

moon in response to your original question about a little more speed, they have a 13t spur Mod1 from factory. By my calculations they have 1:1.18 roll out ratio. This with 4s lipo give you a max speed of 62 Kph if you add rolling resistance it will be less then this.

I have found that here in Australia on a 25 to 30 deg day that the set up is on the limit temp wise for general bashing around a track. By the end of a 15min run the motor is in the mid 70 deg temp range. So if you try a 14t spur keep a careful eye on motor temps.

Here is a pic of our 2 cars, one is my sons and one is mine.

HobbyTech Buggy EPX2 1/8 tt IMG_0985_zpsfilekqi6

patrolit
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Message par moon839 le Ven 3 Avr 2015 - 9:39

thank you for response
j'ai changer le combo moteur par ceci car l'esc a bruler prit en garantie
[img]HobbyTech Buggy EPX2 1/8 tt Hobbyw10[/img]

moon839

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Message par patrolit le Ven 3 Avr 2015 - 12:17

All good Moon, I do not quiet understand you last sentence as "Google Translate" dose not translate it properly.

Is that a 150amp ESC?

I have upgraded to this motor http://www.skyrc.com/index.php?route=product/product&path=39&product_id=149

But I do need to go to a 150amp ESC, this will also allow me to run 6s lipo battery.

I run a 14t spur with the SKYRC motor.

How do you find the hobbytech Quicrun motor? Do you run a cooling fan / heat sink on the motor?
patrolit
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Message par moon839 le Ven 3 Avr 2015 - 22:25

oui c'est un 150A moteur quikrun 2000KV pignon de 15 et temp moteur après 35 minutes moins de 60 degrés Celsius (140 degrés Fahrenheit)
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et nouvelle roue et pneu de marque 6MIK BLASTER medium .
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et fabrication de protection de triangle arriere en styrene .
[img]HobbyTech Buggy EPX2 1/8 tt 20150314[/img]
[img]HobbyTech Buggy EPX2 1/8 tt 20150315[/img]

moon839

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Message par patrolit le Sam 4 Avr 2015 - 0:32

That is great to see those temps that low, what kind of surface to you run the car on?

Will have to make a set of the rear guards, that is a great idea.

I am using the LOSI Pioneers... http://www.onestoprchobbies.com.au/Louies-B-PIONEER-1/8th-Buggy-Tyre-Mounted

I have just tried re gluing the factory hobbytech tyres and rims, will try them again. They where quiet a grippy tyre for the type of surface we drive on.

I notice you dont have the Shocky covers on, Did yours come like that?

patrolit
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Message par moon839 le Sam 4 Avr 2015 - 0:42

je conduit sur terre tres poussiere et dure,les pneu sont vraiment tres accrocheurs et non c'est moi qui est enlever the Shocky covers .
plus simple pour nettoyer .

moon839

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Message par patrolit le Sam 18 Avr 2015 - 5:39

Motor mount upgrade time.

New motor mount arrived for each buggy today, so set about fitting up my son’s new motor and motor mount. This allows for changing / adjustment of the spur without having to take all the electrics off.

HobbyTech Buggy EPX2 1/8 tt IMG_1142_zpsc8zkqw4v


While I was in there I wondered whether I could use the old mount to replace the plastic centre diff mount. I cut the side bracket of the original motor mount and fitted it up, It all fitted in just nicely

HobbyTech Buggy EPX2 1/8 tt IMG_1143_zpsbywrhodh

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Only difference is that the top screws for the switch mount are half a hole out.

HobbyTech Buggy EPX2 1/8 tt IMG_1150_zps66ywb1mo


I have also started to tighten up the front end suspension adjustment areas, they have a lot of slop in them. I have put an alloy washer either side of the top control arm mount to hub. Also shimmed the front hub bearings to remove a lot of slop from them.

HobbyTech Buggy EPX2 1/8 tt IMG_1152_zpsx4ismthl

HobbyTech Buggy EPX2 1/8 tt IMG_1151_zpslqeq1fjx
patrolit
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Message par moon839 le Sam 18 Avr 2015 - 16:18

Jolie options,et d'avoir coupeur l'ancien support moteur très bonne idée.
J'ai moi aussi changer des choses .
Les tours amortisseurs en carbone,amortisseurs du spirit,cales de cellules avant arrière en aluminium,support moteur,palonnier de servo aluminium,ventilateur de moteur castle,aileron proline trikesta et les 6 cardans cvd 2 avants 2 arrières et 2 centrales .
HobbyTech Buggy EPX2 1/8 tt <a href=HobbyTech Buggy EPX2 1/8 tt 20150436" />
HobbyTech Buggy EPX2 1/8 tt <a href=HobbyTech Buggy EPX2 1/8 tt 20150437" />
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moon839

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Message par patrolit le Dim 19 Avr 2015 - 7:05

So is that still the EPX2 or the spirit model, your diff housings are totally different. your photos of the rear sway bar, that is totally different diff housing to mine.

I like the rear spoiler and carbon towers, that is very neat. I have thought about getting the upgraded shocks, but I don't not race I only use it for bashing.

I like the CVD shafts, I have ordered the upgrade set for my center diff. Also I see your rear diff has CVD drive shafts, did you just order a set of fronts and use them in the back?

Can you type in English, I can not find a good program to translate French very well.

I have also ordered the CVD cover boots.

Do you order your parts online or from your local RC shop?

If online can you provide a link please.

patrolit
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Message par moon839 le Dim 19 Avr 2015 - 13:50

Hello I put the diff housings of the spirit to put tour carbon of the spirit because more regulation with. I also put rockets before aluminum of the spirit.
Here is a link for rooms(parts,plays) it is in France but they deliver in the world.
Imodel

HobbyTech Buggy EPX2 1/8 tt <a href=HobbyTech Buggy EPX2 1/8 tt 20150426" />

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Message par patrolit le Lun 20 Avr 2015 - 14:50

moon you seen these?

http://www.powerracing-modelisme.com/hobby-tech/10196-hobbytech-etriers-porte-fuse-aluminium-str8-factory-strs-045.html

I have been playing around with the plastic ones seeing if I can get rid of the slop in the bushing... I managed to get a bearing top and bottom.

HobbyTech Buggy EPX2 1/8 tt IMG_1166_zpsc6h3fttz

HobbyTech Buggy EPX2 1/8 tt IMG_1168_zpsgtiafavj

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HobbyTech Buggy EPX2 1/8 tt IMG_1176_zpsq5xolha2

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Message par moon839 le Lun 20 Avr 2015 - 19:49

Yes I saw for stirrup aluminum but no stock. And good idea to put rotations

moon839

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Message par patrolit le Mar 21 Avr 2015 - 0:46

These guys in Sweden seem to have stock, and a good range of hobbytech parts.

http://stockholm.reservdelsrc.com/c-hub-hoger-vanster-7075/10885-0
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Message par moon839 le Mar 21 Avr 2015 - 2:17

I am going to try to command c-hub-7075
But in not easy Swedish
You have to look on the imodel site

moon839

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Message par patrolit le Mar 21 Avr 2015 - 2:40

Yes looked at the Imodel site, that is a good site. Unfortunately they don't list the STRS-045's that would of been a bonus.


Euro to Australian $ is also not good...
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Message par moon839 le Mar 21 Avr 2015 - 2:51

Yes it is the true I command in the USA a lot because the conversion $ in € and much better for me.

moon839

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Message par patrolit le Mar 21 Avr 2015 - 10:15

Stockholm don't send to Australia, have to find another supplier.
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