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Old 05-23-2010, 09:22 PM   #15646
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I prefer the high traction arms... more durable and more feel on the track.. the cyclone tc arms have more tuning options.. but I have seen so many snap..
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Old 05-23-2010, 10:01 PM   #15647
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i ended up ordering both and a 88t spur so i can qualify for free shipping on myatomic.. i guess ill give both a try
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Old 05-25-2010, 11:13 AM   #15648
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Thanks guys for the advice on the 47/88 gear combo, setup has amazing exit speed and top end
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Old 05-29-2010, 08:00 AM   #15649
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I am trying to pick up a used TC for use in a 21.5 Spec Sedan class at the LHS. I am returning to RC racing after a 20 year timeout so I don't have much current knowledge. I have found local info on Associated, Tamiya, Xray [too expensive for me] but not much on HPI. I assume the HPI cars are competitive with the previously mentioned cars but I would like to know some more about them.

Are there any advantages between the various versions of the HPI RS4? [by model, I mean Pro 2, Pro 3, Pro 4]

Are parts still available?
Do the different versions share a lot of the same parts?

How do they compare to the current HPI TC which appear to be aimed more at non-racers [I may be wrong since this is just an impression that I got when I looked at the website]?
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Old 05-29-2010, 08:40 AM   #15650
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Spares can still be had for the Pro 4 (it shares some with the Cyclone) but you'd have a hard time finding spares for any previous cars IMHO.

The Pro 2 is belt driven and a good car, better than the Pro 3 I always thought. The Pro 4 is still a competitive car but requires some fettling to keep it running well.

If anyone has any questions on the Pro 4 gimme a shout - one of mine for sale here also:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=150446908269
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Old 05-29-2010, 06:09 PM   #15651
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Quote:
Originally Posted by Andysan View Post
Spares can still be had for the Pro 4 (it shares some with the Cyclone) but you'd have a hard time finding spares for any previous cars IMHO.

The Pro 2 is belt driven and a good car, better than the Pro 3 I always thought. The Pro 4 is still a competitive car but requires some fettling to keep it running well.

If anyone has any questions on the Pro 4 gimme a shout - one of mine for sale here also:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=150446908269
Thanks Andy. I'll add the Pro 4 to my list of cars that I am watching for on Ebay and other places. A lot has happened since I dropped out of RC racing and Internet forums for help is one of the changes for the better.
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Old 05-29-2010, 07:42 PM   #15652
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I thought I would post here first, anyone looking for a Pro4..lots and lots of spare parts, 4 chassis, a 3mm, 2.5mm, 2.0mm..I also have the 3mm top deck and shock towers, spare diff cases, diffs, one ways, C hubs, rear hubs, CVD's..I have so much stuff for a pro4, I just want to get rid of everything..not to sure on the price..$225 plus shipping and I'll toss in a new body and a servo (Futaba 9450).
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Old 05-30-2010, 11:48 AM   #15653
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Default gearing help

hi all i've just picked up a pro 4 to give touring a go. i'm going to running speed passion gt 2.0 lpf with a losi 17.5 bl motor, now the only spur i've got is a 78/ 48dp now what pinion size would be good. i have done a search but the only gearing is all 68 dp and not the 48dp.


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Old 05-31-2010, 09:18 AM   #15654
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what other steering blocks will work on the Pro4/Cyclone ???
looking to replace mine with ally steering blocks but cant find any for Pro4/Cyclone.
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Old 06-01-2010, 02:56 PM   #15655
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can any won help? i'm been signed upto race it this friday


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Old 06-01-2010, 03:00 PM   #15656
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Quote:
Originally Posted by G-mini View Post
hi all i've just picked up a pro 4 to give touring a go. i'm going to running speed passion gt 2.0 lpf with a losi 17.5 bl motor, now the only spur i've got is a 78/ 48dp now what pinion size would be good. i have done a search but the only gearing is all 68 dp and not the 48dp.


Cheers Ginge
I used 64 pitch spurs when I ran this car last year, and usually settled on an 88 tooth 64P spur. This translates into a 66 tooth 48P spur, which might be hard to find but is about the size you'll need to perform well. 78 is certainly too large for 17.5 - you'll need to replace it.
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Old 06-01-2010, 03:33 PM   #15657
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gearing on the car will depend on what software you running on teh esc.
If new supercharge software you would need to gear around 6 - 6.5 and if older 110 software around 5.5 - 5.
If older software keep gearup watching lap times for a peak and not exceeding a motor temp of 65-70 deg/c max.
Unless where you race has restrictions the latest software is needed to be fairly competitive.
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Old 06-02-2010, 11:12 PM   #15658
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My Pro4..this car still rocks..
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Old 06-03-2010, 09:18 AM   #15659
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have a race in the OC this weekend, now ima run spool and getting the suspension settings re-done so lets hope i make A main
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Old 06-03-2010, 09:56 AM   #15660
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Why a spool? Just wondering..
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