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2 Speed Gear box for HPI

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Old 04-27-2010, 02:15 PM
  #251  
BKNate
 
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Default RE: 2 Speed Gear box for HPI

For sure!
Old 04-28-2010, 02:11 AM
  #252  
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Default RE: 2 Speed Gear box for HPI

I cant believe you took it out and didn't make a video...
Old 04-29-2010, 07:40 AM
  #253  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

Heres a few pic's of the 2 speed after near 2 tanks floging it on grass/dirt and a bit off road also doing some small jumps and giving it a good bashing. Vid to come soon (need some one to video it all) have some on my phone and a mates but not sure how to upload it..

All up no wear on any parts, slight shine on the pins but no groove on them.

Gear mesh is a good mesh.Only mod i done was put a washer between the pinons to get a perfect line up with the out side gear and a 0.6mm shim near the shift mechanisn to get a perfect fit with just the right amount of play and clearance. These were not needed but this made it perfect.

I made up a cover up for it and its turning out very easy and will work very well. (anyone want more info on this can let me know).



one pin.


2nd pin.


3rd pin.


no wear on gears and mesh is good/smooth.






pinons with no wear.


shift mech with no wear.




Gear cover.






Old 04-29-2010, 07:42 AM
  #254  
bbuzzard
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Default RE: 2 Speed Gear box for HPI

What pics?

Oh, I see them now!

Old 04-29-2010, 07:54 AM
  #255  
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Default RE: 2 Speed Gear box for HPI

I believe the pins are going to be a wear idem on both designs for the 1/5 scale 2 speed. It will be interesting how long they last on both designs before needing replacment. Mazda how hard is it to replace the pins on your 2 speed??
Old 04-29-2010, 08:02 AM
  #256  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

So easy 5 min max and thats inc pulling the 2 speed apart to get to them. Hammer and a pin punch or a bit of steel that will fit. Roll/spring Pins are avalable from almost anywere and very cheap (around $4 to $6 for all of them).
Old 04-29-2010, 08:35 AM
  #257  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

Heres a few vids done by my 6.5 year old son. Sorry but its his 1st time using my new phone, did not do to bad.

[link]http://www.youtube.com/watch?v=lYsKjEF9RPc[/link]

[link]http://www.youtube.com/watch?v=XAXxExgLhrQ[/link]

[link]http://www.youtube.com/watch?v=2n_angAB4cY[/link]

[link]http://www.youtube.com/watch?v=lG5JNCWrWVA[/link]



Old 04-29-2010, 11:55 AM
  #258  
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Default RE: 2 Speed Gear box for HPI

The 2 speed seems to be holding up quite well. I like the videos you posted up, short and got right to the point
Old 04-29-2010, 12:44 PM
  #259  
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Default RE: 2 Speed Gear box for HPI

cool vids mazda how much does it affect top speed?
Old 04-29-2010, 04:35 PM
  #260  
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Default RE: 2 Speed Gear box for HPI



That will depend on the chosen gearing. Each gear-up combo will add 3-4 mph




ORIGINAL: TIGER76

cool vids mazda how much does it affect top speed?

Old 04-30-2010, 07:58 AM
  #261  
Mudgy
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Default RE: 2 Speed Gear box for HPI

Hey Mazda, they look like what's called a spiral pin. I use 'em in my hand tools for steel strapping. Sometimes a solid pin or a dowel pin (or even a shoulder screw) is tougher, depends on what you want to wear out first. Either way, beats a roll pin any day. Looks tough!


liking the plastic cover, too. Good idea. Have a good weekend mate[8D]
Old 05-01-2010, 11:35 PM
  #262  
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Default RE: 2 Speed Gear box for HPI

can u share how u made the cover for it??
Old 05-02-2010, 06:21 AM
  #263  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

Heres more of the gear cover and the parts used to make it all work. 1st you will need the stock gear cover
and a bit of plastic 2mm thick and around 38cm long and 26mm wide.. Make the tube over 38 cm lomg and cut to suit gear cover mod when done glueing.

parts below.



















Old 05-02-2010, 12:21 PM
  #264  
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Default RE: 2 Speed Gear box for HPI

whats that clear part?maybe i can try to cut out another cover ?where does the plastic tube go?
Old 05-02-2010, 10:55 PM
  #265  
logon69
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Default RE: 2 Speed Gear box for HPI

How about you get your 2 speed mounted first? forget the cover!
ORIGINAL: badboy2

whats that clear part?maybe i can try to cut out another cover ?where does the plastic tube go?
Old 05-02-2010, 11:41 PM
  #266  
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Default RE: 2 Speed Gear box for HPI

heheh...its mounted but i need to show it to u before everything else.you kno ineed to protect my credibility ..someone is reading this hehehe
Old 05-03-2010, 02:09 AM
  #267  
Mazda ute
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Default RE: 2 Speed Gear box for HPI


ORIGINAL: badboy2

whats that clear part?maybe i can try to cut out another cover ?where does the plastic tube go?
Its a bit of plastic 2mm thick and around 38cm long and 26mm wide..

Using anuther gear cover will not work, it not wide enuff and the holes are in the way.

Around the end to seal just like you can see in the pic!.
Old 05-03-2010, 10:56 PM
  #268  
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Default RE: 2 Speed Gear box for HPI

how did u mold the clear part that u glued?
Old 05-04-2010, 03:22 AM
  #269  
Mazda ute
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Default RE: 2 Speed Gear box for HPI


ORIGINAL: badboy2

how did u mold the clear part that u glued?
By hand and using a pen and the computer desks edge. Bend the plastic past what you need till it stays the way you want and stays in shape, use the rubber bands to hold it in shape/place till the glue sets.
Its not that hard just have a go.
Old 05-06-2010, 04:41 AM
  #270  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

2 speed doenuts are so fun, its crazy when it hits 2nd you will burst out laughing. Near lost controll laughing so hard.
Will get vids soon i hope ,need a camra man.
Old 05-19-2010, 07:49 AM
  #271  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

2 speed still going hard only had a change in the setting but seems to be sorted soon. Have a Bajaskunkworks 2-Speed on its way to compare the two should be here next week with a few other goodies.
Old 07-02-2010, 08:48 PM
  #272  
Mazda ute
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Default RE: 2 Speed Gear box for HPI

Since last report i'v been waiting on parts to fix the 2 speed and been stuffed around for months now its a joke.
I am not the only one having the same problem with the shift mech. Custermer service is very poor, they take weeks to get back to you and say some things being done but nothing happens.
I know for sure 100% if there was a problem with a Bajaskunkworks 2-Speed the problem would be fixed with in a week.


ORIGINAL: Mazda ute

2 speed still going hard only had a change in the setting but seems to be sorted soon. Have a Bajaskunkworks 2-Speed on its way to compare the two should be here next week with a few other goodies.
Old 07-02-2010, 09:09 PM
  #273  
logon69
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Default RE: 2 Speed Gear box for HPI

What Happened that you are so angry?
Old 09-14-2010, 10:06 PM
  #274  
DanLC4
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Default RE: 2 Speed Gear box for HPI

Here is another option for a 2 speed from Rovan. In US, In Stock and ready to ship next day.

I installed it on my buggy and ran it. Will post videos soon.

Here are some pictures.
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Old 09-14-2010, 11:58 PM
  #275  
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Default RE: 2 Speed Gear box for HPI

Wasn't there a 2-speed kit that you could choose the gears for? I wanna eventually get a one with multiple gear options.


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