R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 09-24-2008, 10:06 AM   #1
Tech Rookie
 
Join Date: Sep 2008
Posts: 3
Default GPX PRO belt-prop

hi guys
gone try it again now i running my car whit os max tz 5p 16%nitro
removed the one way front and put diff 500000 oil from kyoso instead now the problem is every 2hours belt gone , the thead rip off second when i com out off a corner go full trottle the car hoping whit his front wheels for a distance off 2a 3meter. thy set to me your car is to hard on damping on the rear i changed that no result i can not believe that dhare is no-one that drive whit front diff over dhare or did you ever rain in this problem for me its a good car and i dont no whare to look i ame from belgium a most people drive hire whit serpent 720 so can someone help me out hire i send a mail to direckt to hobao to no response
i got to mutch spars ,otherwise i sold the car i starts to enoying mé
i just wont drive and have fun .
greetings mac
macspeed47 is offline   Reply With Quote
Old 09-24-2008, 11:09 PM   #2
Tech Elite
 
Taffyjnr5's Avatar
 
Join Date: Oct 2005
Location: QLD
Posts: 2,033
Trader Rating: 32 (100%+)
Default

Hi,
Try using a differant side belt from like a TM G4 as the standard belts on the GPX-4 are rubbish...........
__________________
Sworkz EVOII LE/Hobbywing/Protek
Roche Rapid F1/Hobbywing/LRP
Taffyjnr5 is offline   Reply With Quote
Old 09-26-2008, 08:38 AM   #3
Tech Rookie
 
Join Date: Sep 2008
Posts: 3
Default GPX Pro

hi,
now ok belts problem is ok now was my diff in front, but my car keeps jumping in the front when i com out off a corner every thing is original i changend dampers whit stabi without stabi rear keeps jumping the prop is the pully behind is 19 and the front 23 so i think that is the prop i have changed them other way around 23 behind and than its seem to bé ok ,but you can not drive like that way to mutch tension on the belt.why hoboa dont have different pully for the front and rear
i think fr 21 -re 21 woud solve the prop do anyone have experiance whit this
greetings mac
i hope someone can give me a solution i like the car but this is no way to drive
macspeed47 is offline   Reply With Quote
Old 09-26-2008, 11:01 AM   #4
Tech Elite
 
razzor's Avatar
 
Join Date: Aug 2005
Location: Durban, South Africa
Posts: 2,810
Default

Your diff shouldnt be the hassle !!!
Make sure you have all the correct pulleys as per the manual fitted .
and note the front and rear wheel diameter.
The rear wheels if smaller than the front wheels will cause stress on the belts and cause them to strip.
Check also that the condition of the pulleys are OK and worn.
Also when turning make sure there is no binding on the front drive train.
The Kyosho or G4S belts are also much better quality so look at getting them.
__________________
Casterracing ZX1.5R
casterracing EX-1 Pro, SP Silver Arrow
TOP Racing Scythe, SP 17.5, SP GT Pro 2.0
TOP Racing Scythe, SP 4.5 V2, Hobbywing Xerun 120SD 2.0
TOP Racing Scythe, SP 13.5, Hobbywing Xerun 120SD 2.0
razzor is offline   Reply With Quote
Old 09-26-2008, 01:52 PM   #5
Tech Rookie
 
Join Date: Sep 2008
Posts: 3
Default GPX Pro

Razzor,
the prop whit the belt is fine now.
but i gone try to explain what the car do. I com for exampel full trottel to corner i brake steer true corner and what you do dann full trot out of the corner at that moment my car starts to jump whit his front wheels the moment you accelerhat after 2meters its stops and than it go normal but that is not right a changend everthing new pully belts new tires ufra everything this is not good my friends drive whit serpent wy drive on the circuit i drive for meany year whit 1/5 fg now i changed to 1/10 because i wass funny for me and friends i do for 25 years rc now.so i ame not a rookie the car is brand new 10moanths engine os max 12 TZ 5p to day i tryed again hopeless it keeps jumping. i give up when nobody can give me some good advice the car fly out this is what i mean is i putt this also on the forum from hobao do think someone response nop. i can not believe that no one have the same prop this car is compleet original.
macspeed47 is offline   Reply With Quote
Old 09-29-2008, 07:36 AM   #6
Tech Elite
 
razzor's Avatar
 
Join Date: Aug 2005
Location: Durban, South Africa
Posts: 2,810
Default

Off the top of my head the only possible problem could be that you have too much steering travel so when you turn full lock the cvd's chatter which causes the wheel to bounce.
Place your car on the starter box and holding part throttle turn the steering left full lock and right full lock and see if it chatters/vibrates etc.. if it does then you need to set the end points on your radio or dial out steering on the dual rate.

Cant think of anything else that could be the hassle.
__________________
Casterracing ZX1.5R
casterracing EX-1 Pro, SP Silver Arrow
TOP Racing Scythe, SP 17.5, SP GT Pro 2.0
TOP Racing Scythe, SP 4.5 V2, Hobbywing Xerun 120SD 2.0
TOP Racing Scythe, SP 13.5, Hobbywing Xerun 120SD 2.0
razzor is offline   Reply With Quote
Old 09-29-2008, 04:02 PM   #7
Tech Apprentice
 
Undies's Avatar
 
Join Date: Mar 2006
Location: Australia
Posts: 98
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Taffyjnr5 View Post
Hi,
Try using a differant side belt from like a TM G4 as the standard belts on the GPX-4 are rubbish...........
How many teeth are different between the GPX4 side belt and the G4S belt?

I know earlier you were running Mugen belts are you still doing this? Other people would just soak belts in WD40 to stretch them....
Undies is offline   Reply With Quote
Old 10-01-2008, 02:53 AM   #8
Tech Elite
 
Taffyjnr5's Avatar
 
Join Date: Oct 2005
Location: QLD
Posts: 2,033
Trader Rating: 32 (100%+)
Default Belts

Hi,
The G4 belt has 1 more tooth on it and I only used the Mugen (MTX-3)belts on the front and rear for the quality and durability.
__________________
Sworkz EVOII LE/Hobbywing/Protek
Roche Rapid F1/Hobbywing/LRP
Taffyjnr5 is offline   Reply With Quote
Old 10-01-2008, 04:31 AM   #9
Tech Apprentice
 
Undies's Avatar
 
Join Date: Mar 2006
Location: Australia
Posts: 98
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by Taffyjnr5 View Post
Hi,
The G4 belt has 1 more tooth on it and I only used the Mugen (MTX-3)belts on the front and rear for the quality and durability.

Would having that one extra tooth throw the gearing out at all?
Undies is offline   Reply With Quote
Old 10-01-2008, 08:19 AM   #10
Tech Elite
 
Taffyjnr5's Avatar
 
Join Date: Oct 2005
Location: QLD
Posts: 2,033
Trader Rating: 32 (100%+)
Default

Hi,
Only the pulley size (teeth) controls the gearing not the belt size ok.
__________________
Sworkz EVOII LE/Hobbywing/Protek
Roche Rapid F1/Hobbywing/LRP
Taffyjnr5 is offline   Reply With Quote
Old 10-01-2008, 08:40 AM   #11
Tech Elite
 
suntok2's Avatar
 
Join Date: Mar 2003
Location: Manila Philippines
Posts: 2,412
Send a message via ICQ to suntok2 Send a message via AIM to suntok2 Send a message via Yahoo to suntok2
Default

Quote:
Originally Posted by macspeed47 View Post
Razzor,
the prop whit the belt is fine now.
but i gone try to explain what the car do. I com for exampel full trottel to corner i brake steer true corner and what you do dann full trot out of the corner at that moment my car starts to jump whit his front wheels the moment you accelerhat after 2meters its stops and than it go normal but that is not right a changend everthing new pully belts new tires ufra everything this is not good my friends drive whit serpent wy drive on the circuit i drive for meany year whit 1/5 fg now i changed to 1/10 because i wass funny for me and friends i do for 25 years rc now.so i ame not a rookie the car is brand new 10moanths engine os max 12 TZ 5p to day i tryed again hopeless it keeps jumping. i give up when nobody can give me some good advice the car fly out this is what i mean is i putt this also on the forum from hobao do think someone response nop. i can not believe that no one have the same prop this car is compleet original.
Hi,

Please check your drive cup in the rear diff. if you see a cut in the part where the dogbone pin touches when you accerelate.
suntok2 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nitro On-Road Addict sa RC Manila Racers 12522 12-27-2015 06:51 PM
Hobao GPX4 Pro chrisman Nitro On-Road 781 05-06-2013 08:47 PM
looking for nitro onroad or mini onroad superhornetrace R/C Items: Wanted to Buy 10 08-26-2008 01:56 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 02:29 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net