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Hpi Pro 4


Old 02-02-2006, 06:25 PM
  #13831  
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Originally Posted by rc-zombies
the smaller bearing are very fragile...doesn't take much to break them..

stay with the original bearings..

ive been running ceramic 5x8's for awhile now. they havent broken, tho they have degraded more than the stock bearings do in the same amount of time.

they are a fair amount lighter tho.

they have a HUGE disadvantage in that you cannot use the load spacer in between them like you can with the stock 5x10's which means you cant shim your axles as tight

still tho i kinda like them
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Old 02-02-2006, 07:00 PM
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Originally Posted by raptor 700
Another thing my inside tires jwrecks from left to right in a full throttle swepper? Thanks for the info.
The question doesnt make sense. Explain...
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Old 02-02-2006, 07:12 PM
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i think he ment to put his inside tire jerks left to right when in a full throtal sweeper
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Old 02-02-2006, 07:18 PM
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Thats exactly what I meant to say. Thanks for the correction.
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Old 02-02-2006, 11:40 PM
  #13835  
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Is the Pro 4 Hara worth getting over the regular Pro 4? Is it worth the extra hop-ups?
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Old 02-03-2006, 05:46 AM
  #13836  
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raptor700,

Are you running on a track with a lot of 180's or tight turns?

Also is it foams on carpet or outdoor asphault?

If you are running a spool and there are a lot of tight turns and 180's then you would be much better off with a diff. The issues with the inside tire shaking is from a lack of diff action as the inside tire is rotating the same ammount as the outside one, but is traveling a shorter distance.

Greg
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Old 02-03-2006, 08:29 AM
  #13837  
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Originally Posted by RSR
Is the Pro 4 Hara worth getting over the regular Pro 4? Is it worth the extra hop-ups?
yes...worth every penny..
there's a couple of used Hara Pro4's in the forsale section.
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Old 02-03-2006, 09:54 AM
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Originally Posted by rc-zombies
yes...worth every penny..
there's a couple of used Hara Pro4's in the forsale section.
I'm sure this has been posted already, but speaking from your personal experience, can you elaborate a little on that? What exactly about this car makes it better?

I've currently got 2 Pro4's, one carpet and one asphalt, and I'm trying to decide whether to just sell them and get Hara editions, or simply replace the worn parts and keep racing them....

thanks zombies!
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Old 02-03-2006, 10:33 AM
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Myself I would just replace the worn parts and get the few Hara hopups. The most expensive thing I guess is the slotted motor mount.... oh wait the shocks are pricey too
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Old 02-03-2006, 03:16 PM
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Originally Posted by Greg45231
raptor700,

Are you running on a track with a lot of 180's or tight turns?

Also is it foams on carpet or outdoor asphault?

If you are running a spool and there are a lot of tight turns and 180's then you would be much better off with a diff. The issues with the inside tire shaking is from a lack of diff action as the inside tire is rotating the same ammount as the outside one, but is traveling a shorter distance.

Greg
Thanks for help. It is outdoor aspahalt. It a lot 90 degree turns. In the run lanes there is only enough for two cars.
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Old 02-03-2006, 07:09 PM
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[QUOTE=car

I've currently got 2 Pro4's, one carpet and one asphalt, and I'm trying to decide whether to just sell them and get Hara editions, or simply replace the worn parts and keep racing them....

trehanks zombies![/QUOTE]

hello,

i was wondering what are the main diffrences between your carpet and

asphalt setups besides foams vs. rubber of coarse?

for example, do you run one ways, diffs, spools, roll center changes, different

chassis or top plate thicknesses etc. thanks
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Old 02-03-2006, 09:58 PM
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Originally Posted by cartmen34
I'm sure this has been posted already, but speaking from your personal experience, can you elaborate a little on that? What exactly about this car makes it better?

I've currently got 2 Pro4's, one carpet and one asphalt, and I'm trying to decide whether to just sell them and get Hara editions, or simply replace the worn parts and keep racing them....

thanks zombies!
sorry, i messed up the original quote
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Old 02-03-2006, 10:55 PM
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Originally Posted by CHRIS CHAVEZ
hello,

i was wondering what are the main diffrences between your carpet and

asphalt setups besides foams vs. rubber of coarse?

for example, do you run one ways, diffs, spools, roll center changes, different

chassis or top plate thicknesses etc. thanks
The carpet car uses a 3mm BMI main chassis & 3mm top plate; diffs all the way around. I've not made any other parts changes to the car. Just messed around with the setup a little.

The asphalt car uses the stock chassis; also with diffs all the way around (It's a tight, low traction track) I've also modified the stock Pro 4 top deck to match the Hara edition.
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Old 02-04-2006, 09:31 AM
  #13844  
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Originally Posted by cartmen34
The carpet car uses a 3mm BMI main chassis & 3mm top plate; diffs all the way around. I've not made any other parts changes to the car. Just messed around with the setup a little.

The asphalt car uses the stock chassis; also with diffs all the way around (It's a tight, low traction track) I've also modified the stock Pro 4 top deck to match the Hara edition.
Nice!
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Old 02-04-2006, 11:38 PM
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What is the difference between the hara and the 2005 edition? And cemirca diff balls worth it and what is the best company to buy from? Can someone post a template of the hara top deck? Thanks everyone.
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