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HPI Cup Racer 1M

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Old 01-27-2010, 02:30 PM
  #1351  
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They really need to come out with a 1st Gen RX7 or maybe a 323 GTX
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Old 01-27-2010, 02:57 PM
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I hope for an BMW e30 M3 Evo!
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Old 01-31-2010, 08:12 AM
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Just got the sway bar kit and need to know a good starting point for what color bars for the front and rear. Run on a medium bite outdoor asphalt preped track.
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Old 01-31-2010, 05:42 PM
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hey there everyone.hopefully someone can help me!can anyone tell me the weekest part on the cup racer........thats right(hahaha)the front gear hub(part #85281 #10)im only running a 21t venom motor on a race track,and everytime i take it out the three little nipples break off!!!!is there an aftermarket pce to replace the week one or am i stuck with two wheel drive... i love my cr but this front gear hub is a pce of crap ,the rear spur gear hub is made of metal so why not the front one???anyways enuff bitching,let me no if theres anything out there thanx
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Old 01-31-2010, 05:46 PM
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hey thewre eveyone. can anyone tell me the weekest part on the cr........thats right the front centre gear hub(part#85281 #10)everytime i take it out the three little nipples break off(running a 21t venom motor at the local track)does anybody know of an aftermarket part to replace this?
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Old 01-31-2010, 09:07 PM
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Originally Posted by muddslinger View Post
hey thewre eveyone. can anyone tell me the weekest part on the cr........thats right the front centre gear hub(part#85281 #10)everytime i take it out the three little nipples break off(running a 21t venom motor at the local track)does anybody know of an aftermarket part to replace this?
Pro Tip- Use the rear metal spur holder in the front as well. You have to mod the bearing holder a bit but it can be done. Place a few o-rings inside of the cup as well to keep the center shaft from sliding around.
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Old 01-31-2010, 10:11 PM
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hey there mike,thanx alot for the tip im defenitly going to try this..the cup racer is the most fun ive had for onroad racing thanx agaian
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Old 02-01-2010, 07:33 PM
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will the novak havoc ballistic 17.5 pro system be fast enough to race
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Old 02-01-2010, 07:41 PM
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Originally Posted by tbo713 View Post
will the novak havoc ballistic 17.5 pro system be fast enough to race
sure why not, but that would depend on the local rules at your track...

I know the 'open' Cup Racer class at the HPI Challenge is 27t stock or 17.5 - so it would work if there are any HPI Challenges...
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Old 02-02-2010, 05:16 AM
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Default have not broke one since using these.......

Originally Posted by MikeR View Post
Pro Tip- Use the rear metal spur holder in the front as well. You have to mod the bearing holder a bit but it can be done. Place a few o-rings inside of the cup as well to keep the center shaft from sliding around.
http://www.hot-racing.com/index.cgi?...TTS230CH&c=467

they work well.
and they're sold out.
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Old 02-02-2010, 07:15 AM
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Originally Posted by 1555Racing View Post
they work well.
and they're sold out.
That is not the same part that people are having issues with. No one seems to make the front drive cup in Aluminum yet.

When you are driving it is pretty obvious when the front drive cup breaks: all the sudden the car will become tail happy, and it will have a tendency to spin/oversteer. Hopefully HPI will come out with a metal replacement soon.

I'm running an EPIC brushed 19t motor on stock gearing and I've broken 3 front drive cups total. Thankfully one of my machinest friends made me a replacement part out of 7075 T651 Aluminum as a favor (don't ask me for one). I don't think mine will be breaking anytime in the near future.
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Old 02-02-2010, 09:50 AM
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Has anyone tried their HPI cup racer bodies on any of the Tamiya Mini Cooper chassis?
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Old 02-04-2010, 02:52 PM
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Originally Posted by IndyRC_Racer View Post
Has anyone tried their HPI cup racer bodies on any of the Tamiya Mini Cooper chassis?
I bought a pair of Tamiya Group 2 Vw Golf Gti bodies but they donīt fit on the hpi Cup. I tested on an ABC Genetic and they are shorter than the HPI wheelbase. 2-3 mm make a big change. The bodies I bought states that fit on M03 chassis.
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Old 02-04-2010, 02:58 PM
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Originally Posted by conejo View Post
I bought a pair of Tamiya Group 2 Vw Golf Gti bodies but they donīt fit on the hpi Cup. I tested on an ABC Genetic and they are shorter than the HPI wheelbase. 2-3 mm make a big change. The bodies I bought states that fit on M03 chassis.
but if you flip around the rear around on the CR, you get the shorter wheelbase...

MikeR was running the ABC body on his exotek-chassis'ed CR for a long while
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Old 02-04-2010, 03:04 PM
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Obviously, I am using the 210mm WB option. I'll post some pics and you'll notice what I am talking about. I donīt know if the bodies I bought are the wrong option, and maybe somebody can suggest something to do, īcause I really want to use a Vw Golf mk1 body on my Cup Racer.
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