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Old 08-13-2009, 06:36 AM   #1006
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Can anyone recommend a reasonably priced (<$80) brushed ESC to run a silver can or other "scale" motor (20+ turns)?

My only requirement is that it have an intergrated li-po cutoff. If I can't find one in this price range, I'll just go brushless.

Thanks,

Lamar
I have a black can Tamiya motor, Futaba 230 ESC with an ebay Lipo cut off and it all works great.
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Old 08-13-2009, 09:56 AM   #1007
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Hello,

I am about to build my cup car, and was curious about what upgrades that people feel are "necessary". I was looking at the following items.

Graphite Ft. & Rr shock towers
Graphite upper and lower chassis plates
Ball Differential
Sway Bars
Aluminum Shock Bodies
Aluminum Steering Turnbuckle


-Thanks for the input!
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Old 08-13-2009, 10:23 AM   #1008
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IMHO all you need is the sway bar kit and spring kit. I have both items and the turnbuckle for the steering which I bought for cosmetic reasons...lol. My car works fairly well without the other stuff.
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Old 08-13-2009, 02:47 PM   #1009
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Originally Posted by scubag08 View Post
Hello,

I am about to build my cup car, and was curious about what upgrades that people feel are "necessary". I was looking at the following items.

Graphite Ft. & Rr shock towers
Graphite upper and lower chassis plates
Ball Differential
Sway Bars
Aluminum Shock Bodies
Aluminum Steering Turnbuckle


-Thanks for the input!

I agree w/ Carl but what are your plans with your car? Street or race track?
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Old 08-13-2009, 03:29 PM   #1010
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Thanks for the replies. I will be doing some parking lot racing, and hopefully some indoor racing as well.
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Old 08-13-2009, 06:49 PM   #1011
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I want an One way diff!
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Old 08-14-2009, 09:37 AM   #1012
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So, I began assembly yesterday and the front diff situation sucks. I was joking and having a good time with friends, when I realized that the screws are too long for the case. Oh well, I've backed them out a bit, but the damage is already done. It looks like it'll work as is though.

The amount of play in the spur gear assemble is =/ too.

On another note, is the "optional" ball diff on HPI's website for the rear?

Thanks,

Lamar

Last edited by t0p_sh0tta; 08-14-2009 at 10:08 AM.
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Old 08-14-2009, 04:43 PM   #1013
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all ive done so far is...

steering turnbuckle
CF upper chassis
CF rear shock tower
CF steering plates


all for cosmetics, iam going to pick up the aluminum shocks, sway bars and hard springs soon.

i was running black can, but i find them crap. so i went with a reedy 17T
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Old 08-15-2009, 10:08 AM   #1014
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So, I began assembly yesterday and the front diff situation sucks. I was joking and having a good time with friends, when I realized that the screws are too long for the case. Oh well, I've backed them out a bit, but the damage is already done. It looks like it'll work as is though.

The amount of play in the spur gear assemble is =/ too.

On another note, is the "optional" ball diff on HPI's website for the rear?

Thanks,

Lamar
Lamar,

I had this happen to me, too. But then I realized that I had not installed the shock mount (lay down), which would have made the screws the correct length. The manual can be a tad confusing if you're not paying really close attention... Lose focus for a minute and you'll be swearing up a storm (atleast I did!). Did the rear portion of the screw boss bulge out? If so, just use a flat-bladed screw driver to push it back in.

I'm just glad that HPI included extra e-clips for the shock shafts. I lost 3 of them in the carpet!

VT
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Old 08-15-2009, 11:20 AM   #1015
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Lamar,

I had this happen to me, too. But then I realized that I had not installed the shock mount (lay down), which would have made the screws the correct length. The manual can be a tad confusing if you're not paying really close attention... Lose focus for a minute and you'll be swearing up a storm (atleast I did!). Did the rear portion of the screw boss bulge out? If so, just use a flat-bladed screw driver to push it back in.

I'm just glad that HPI included extra e-clips for the shock shafts. I lost 3 of them in the carpet!

VT
Yes, the rear portion of the boss came into contact with the inner diff gear. I pushed it back in, and I assume that it'll be fine. Since I'm anal, I already went ahead and purchased a replacement diff housing, along with stiffer springs and sways (whenever they're back in stock).

Hmm, I'll have to look back over that, I'm using the traditional stand-up mounting system. FWIW, the diff housing that you use for the lay-down setup is different from the stand-up version. The part of the housing that the bearing slides in is longer for the lay-down style.

FWIW, the rest of the kit has been a pleasure to build. I've run into zero issues (besides searching for screws).

-Lamar
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Old 08-17-2009, 08:56 AM   #1016
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I had mine out yesterday for the first real run. Nice drive....

I went with the box stock setup. I found it looping alot on power, but I have to still tune it.

I ran it with
Tamiya black can motor
Futaba 230
Duratrax 3600
Mini rims and HPI radials

I removed the shims that are installed for the 60D tires. Make sure you cover the hole where the spur is. :-) I did not wreck the spur, but there is lots of little pebbles in there, and lots of marks and noise now. :-(

I found the car got VERY hot running that combo. I am going to cut out the grille on my Z to allow more air into the chassis.

I love the car, just have to look at tuning it more..
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Old 08-17-2009, 01:58 PM   #1017
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Does, anyone know of a store front retailer located in the LA Count or Riverside County area that has in stock Cup Racer tires (M or S) and rims? Obviously I could order them online, however, I'd like to pick some up en mass w/out shipping time and cost..
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Old 08-17-2009, 03:37 PM   #1018
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Anyone having issues with the rear ball diff?? I set mine up pretty good, but when I run the car it slips heavily. I haven't broken it in yet but I didn't expect it to be that bad....
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Old 08-18-2009, 05:10 AM   #1019
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Anyone having issues with the rear ball diff?? I set mine up pretty good, but when I run the car it slips heavily. I haven't broken it in yet but I didn't expect it to be that bad....
silly question - did you built the diff with the screw in the correct way?? If you build it with the diff screw in 'backwards', then it will loosen when it runs
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Old 08-18-2009, 08:47 AM   #1020
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Does, anyone know of a store front retailer located in the LA Count or Riverside County area that has in stock Cup Racer tires (M or S) and rims? Obviously I could order them online, however, I'd like to pick some up en mass w/out shipping time and cost..
http://www.ultimatehobbies.com

Orange County but...checked both part numbers and showed in stock
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