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Old 09-29-2004, 11:25 AM   #7681
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I agree. No alum. for me. I would like to see some caster blocks that don't bind the steering. Still running the lower steel insert with the flange outside. Can't compain though. Work just fine.
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Old 09-29-2004, 11:27 AM   #7682
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Who's making that carbon fiber center shaft?
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Old 09-29-2004, 11:29 AM   #7683
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HPI fabricates a carbon shaft, and RCManiax does also.
I dont know wich of them is the better.
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Old 09-29-2004, 11:38 AM   #7684
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Quote:
Originally posted by Ron Meloni
Who's making that carbon fiber center shaft?
HPI #31404

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Old 09-29-2004, 01:59 PM   #7685
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hi i bought hpi ceramic nitride diff balls the other day to replace the stock carbide ones and they make bugger all differnace.

y is this have i built them wrong.

im using tamiya ball diff lub in the diff and running them on the verge of slipping so they are quite smoothe but not as smoothe as every1 said the ceramics make them.
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Old 09-29-2004, 02:11 PM   #7686
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The main advantage of having the ceramic balls is that they will last much longer, however, they should make the diff a bit smoother too.
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Old 09-29-2004, 02:13 PM   #7687
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I think it's the way you build them and what type of grease use...

I used trinity "purple stuff" when i built the kit... It slips alot even when tightened alot. When i purchased an extra diff for front, I used kit stock white grease and my front diff is loose, smooth and never slips. It's an amazing diff...

Also, Sanding the ring helps minimizing ball diff slip
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Old 09-29-2004, 04:26 PM   #7688
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Default Re: NEW OPTION PARTS:

Quote:
Originally posted by rc-zombies
Looks like HPI is releasing some new parts for the Pro4
I like the looks of those new arms. I'll take more flex any day, you know why? Because parts that flex dont F-ing break everytime you touch a board! ok, I feel better now...

Also I dont know if I like that aluminum steering linkage though, as I had a servo saver shaft (solid aluminum part) break on me not long ago, and that was with the stock plastic parts. If those parts were made out of aluminum, then theres no give anywhere and its just that much easier to break stuff. I'd rather break a $10 steering linkage than my $80 servo.
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Old 09-29-2004, 05:12 PM   #7689
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There's no way of pleasing everyone. HPI make stiffer parts because of slop in PRO 3 and now some people wnat more slop in thier PRO 4
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Old 09-29-2004, 05:14 PM   #7690
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boiling the arms would also make them more flexy.
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Old 09-29-2004, 06:20 PM   #7691
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Default Re: Re: NEW OPTION PARTS:

Quote:
Originally posted by S15Racer
I like the looks of those new arms. I'll take more flex any day, you know why? Because parts that flex dont F-ing break everytime you touch a board! ok, I feel better now...

Also I dont know if I like that aluminum steering linkage though, as I had a servo saver shaft (solid aluminum part) break on me not long ago, and that was with the stock plastic parts. If those parts were made out of aluminum, then theres no give anywhere and its just that much easier to break stuff. I'd rather break a $10 steering linkage than my $80 servo.
er...
HPI's bellcrank has adjuastable servo saver built in...
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Old 09-29-2004, 10:09 PM   #7692
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Hook yourself up with a BRP TC3 bumper bro. That has made my front end bulletproof. I havent broken any arms since I went that way.
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Old 09-29-2004, 10:43 PM   #7693
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I have been racing my pro4 for a while now and I can say I have never broken any A arms..gears yes..
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Old 09-29-2004, 11:19 PM   #7694
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Me too...yet to break an arm...and I've hit boards plenty hard...and no damage. If I were running the TC3...the whole side of the car would be gone...
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Old 09-29-2004, 11:57 PM   #7695
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Quote:
Originally posted by robk
Hook yourself up with a BRP TC3 bumper bro. That has made my front end bulletproof. I havent broken any arms since I went that way.
i've used a NTC3 bumper on my pro4. here are a couple of pics

pic1 pic2 pic3
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