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OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

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Old 08-03-2012, 03:47 AM
  #1476
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

I ha my previous for 2 years and never had a problem till now.
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Old 08-04-2012, 03:46 AM
  #1477
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Called HPI with the problem. I explained what was going on with the pulley. They said that the two shaft mounts holding the pulleys has to be adjusted. Let me explain what part that is... Ok you see the left and right motor mounts, then there is the shaft that holds the pulleys, then you have the bearings sitting on those two round black plastic parts, well those two parts are not perfectly round, they are oval if you look carefully. HPI said that they have to be pointing furthest to the rear.

I've tried it with a new set of pulleys, 5 minutes into the runs and show no sign of wear.

I will keep running today and see how it goes so hopefully this works.
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Old 08-04-2012, 03:15 PM
  #1478
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

I called HPI as well was told the same thing ...after breaking a belt and trying there fix it works for a while but belt will still break stretch, or shred.......Installing a tension arm works better belt is lasting allot longer on the initial setup.
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Old 08-04-2012, 03:57 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

who sells aluminum pulleys for the sprint 2
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Old 08-04-2012, 05:22 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

No one does.
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Old 08-04-2012, 05:37 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

im very sad now
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Old 08-04-2012, 11:50 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: Car-Boy

No one does.
try here, i haven't ordered them yet, but i guess they work

www.ebay.com/itm/HPI-Aluminum-Center-Pulley-15T-Purple-HPI72172-/360476068816
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Old 08-05-2012, 05:24 AM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: digitalsmithy


Quote:
ORIGINAL: Car-Boy

No one does.


try here, i haven't ordered them yet, but i guess they work

www.ebay.com/itm/HPI-Aluminum-Center-Pulley-15T-Purple-HPI72172-/360476068816

I have seen people use them(link), should do. But again, hard toget item.
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Old 08-06-2012, 12:18 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

I bought mine off of Ebay, it is expensive but well worth it,especially the rear belt !
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Old 08-06-2012, 12:19 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Try a Tough Racing belt on the rear,I find much stronger!
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Old 08-06-2012, 12:42 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: drc35ca

Try a Tough Racing belt on the rear,I find much stronger!

watcha mean by "tougher" like someone sells stronger ones?

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Old 08-06-2012, 12:50 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Tough Racing from South Korea,kevlar/rubber belt. Makes stock belts look like junk which many are!
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Old 08-06-2012, 01:39 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: drc35ca

Tough Racing from South Korea,kevlar/rubber belt. Makes stock belts look like junk which many are!
mind directing me to these?

thanks.

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Old 08-06-2012, 02:31 PM
  #1489
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

You are using these?

How well do they hold up VS HPI belt?
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Old 08-06-2012, 02:32 PM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Do you have part numbers? TIA



Quote:
ORIGINAL: drc35ca

Tough Racing from South Korea,kevlar/rubber belt. Makes stock belts look like junk which many are!
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Old 08-06-2012, 03:27 PM
  #1491
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)




Quote:
ORIGINAL: digitalsmithy


Quote:
ORIGINAL: drc35ca

Tough Racing from South Korea,kevlar/rubber belt. Makes stock belts look like junk which many are!
mind directing me to these?

thanks.

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Old 08-06-2012, 05:05 PM
  #1492
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Yup. Still wears out. But it takes longer. Will wait for the traxxas 15t pulley. Still on back order but can't wait till I get it.
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Old 08-07-2012, 05:29 AM
  #1493
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


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Old 08-07-2012, 05:35 AM
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

http://www.toughracing.com/ ::RC Car Belt::HPI::HPI Sprint RTR / Sprint2 Sport Rear belt replace 87007


It will not allow me to link direct to page?
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Old 08-07-2012, 07:11 AM
  #1495
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: drc35ca

http://www.toughracing.com/ ::RC Car Belt::HPI::HPI Sprint RTR / Sprint2 Sport Rear belt replace 87007


It will not allow me to link direct to page?
thanks man
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Old 08-07-2012, 10:28 AM
  #1496
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

where did you that aluminum pulley? what kind of pulley?
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Old 08-07-2012, 02:12 PM
  #1497
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)


Quote:
ORIGINAL: Car-Boy

where did you that aluminum pulley? what kind of pulley?




www3.towerhobbies.com/cgi-bin/wti0001p
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Old 08-08-2012, 05:01 AM
  #1498
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

That appears to be the same pulley? just do a ebay search on the pulleys? I got 3 or 4 from Phils Hobby on ebay.

It stops the belt from tearing up on the top plastic pulley , which just takes a few jumps on it to ground it down quick,bottom diff pulley is much bigger and can spread the load out much better!
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Old 08-08-2012, 06:05 AM
  #1499
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Car-Boy u have pm
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Old 08-11-2012, 09:39 AM
  #1500
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Default RE: OFFICIAL HPI Sprint 2 Thread (Sport and Flux)

Just got some parts in and did the work as I saw in some of you guys pics. I didnt do any holes,the rear post by the motor was broken, so I placed a belt tensioner there. It is very well adjustable and alignes perfectly.

On the front belt i added another tensioner but without the plastic part, just used a longer screw to reach the other end. No nut needed there.

It was all an easy fix.
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