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Old 05-06-2009, 02:15 PM   #421
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Yeah, if you built a TB evo or TB03, shimming helps with some of the noise from the bevel gears.
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Old 05-06-2009, 05:57 PM   #422
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well I overtightened the bolt in the center of the rear diff and snapped it be careful cause it's easy to do)
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Old 05-06-2009, 07:15 PM   #423
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Originally Posted by DarthRacer View Post
Thanks for the tips.

I received a bad part in my kit, PN 86194. There were no notches in it to match up with the bevel gear on the opposite side, and if I tightened it down the assembly was hard to rotate. HPI is sending a replacement but I have to wait 5 business days. . Anyone else get bad or defective parts?
Defective parts? Yes. Bent ball diff screw. Front diff ring gear had chunks of metal missing in the teeth. Flashing in the metal gears.

Per HPI the diff screw isn't available til the end of the month. Guess I won't be running this car anytime soon.
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Old 05-06-2009, 11:31 PM   #424
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Just finished my cup racer and the body is really detailed. Still waiting for the 510. I did encounter a motor plate screw hole that was too big, I just put a bigger screw in. Hope to run it soon waiting for esc and 17.5.
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HPI Cup Racer 1M-photo.jpg   HPI Cup Racer 1M-photo-1.jpg  
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Old 05-07-2009, 12:52 AM   #425
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i change the diff front and locker put at back because i want do it for drifting will it work? i havent test witing for motor
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Old 05-07-2009, 01:54 AM   #426
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Originally Posted by Sydewynder View Post
Defective parts? Yes. Bent ball diff screw. Front diff ring gear had chunks of metal missing in the teeth. Flashing in the metal gears.

Per HPI the diff screw isn't available til the end of the month. Guess I won't be running this car anytime soon.
You should be able to use the diff screw from a Pro 4.
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Old 05-07-2009, 03:47 AM   #427
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You should be able to use the diff screw from a Pro 4.
Unfortunately the Pro 4 is 25mm long and the cup racer is 32mm long. Oh well thanks anyway.
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Old 05-07-2009, 04:58 AM   #428
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Just finished my cup racer and the body is really detailed. Still waiting for the 510. I did encounter a motor plate screw hole that was too big, I just put a bigger screw in. Hope to run it soon waiting for esc and 17.5.
What color is that? Copper?

Looks great. My paint sould arrive next week and then I can get mine finished up.
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Old 05-07-2009, 05:30 AM   #429
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Quote:
Originally Posted by MikeR View Post
Yes, complete PRO4 front spool and bevel gear for the front. It is a few mm narrower than the Cup Racer diff so the dog bones aren't as deep into it but because the spool is metal it seems to have plenty to hold the dog bones in. For the rear I'm using the stock diff outdrive but am using the PRO4 bevel gear. The PRO4 bevel gears are very close tolerance against the pinion gear and diff cases but I've put 3 packs through my car and it all is running very smooth, if not better each run.
Hey Mike - how's the mods holding up??

I got the parts I need to do this to mine on the way
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Old 05-07-2009, 05:34 AM   #430
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not to take away from HPI, but has anyone seen what Hot Racing has released for the Cup Racer??

http://www.hot-racing.com/?c=467
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Old 05-07-2009, 05:47 AM   #431
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not to take away from HPI, but has anyone seen what Hot Racing has released for the Cup Racer??

http://www.hot-racing.com/?c=467
GREAT ! I will be getting some of those parts.
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Old 05-07-2009, 08:26 AM   #432
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Quote:
Originally Posted by k_bojar View Post
not to take away from HPI, but has anyone seen what Hot Racing has released for the Cup Racer??

http://www.hot-racing.com/?c=467
good find, any info on hotracing quality ?
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Old 05-07-2009, 08:26 AM   #433
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Anyone looking for one of these cars PM me I have one that I have no need for make me an offer....
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Old 05-07-2009, 09:44 AM   #434
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Default hopups for the CR from TSAIS

new hopups for the HPI cup racer at tsais.com
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Old 05-07-2009, 10:19 AM   #435
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new hopups for the HPI cup racer at tsais.com
so no discount if you purchase the entire motor mount kit, huh

cam + motor mount a + motor mount b = $44.98 (if purchased separately)

or $44.98 in the "kit"

nice looking stuff
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