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HPI Cup Racer 1M

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Old 08-26-2009, 10:29 AM
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I'll put my Type X up against you guys any day! See you guys Saturday.
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Old 08-26-2009, 10:38 AM
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Originally Posted by MikeR View Post
I'll put my Type X up against you guys any day! See you guys Saturday.
Mike, no matter what type it is, your still driving a cr ...we can just show some peolple that this car works ...see you saturday
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Old 08-26-2009, 03:06 PM
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Can I get the set-up for my "Type PD"?
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Old 08-26-2009, 03:58 PM
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Originally Posted by bvalistic View Post
Mike, no matter what type it is, your still driving a cr ...we can just show some peolple that this car works ...see you saturday
YUP YUP!

Originally Posted by pauld View Post
Can I get the set-up for my "Type PD"?
It's the "Dont mount the house transponder in your roof because every time my car gets near yours, your car falls over because the transponder weighs more than the battery" set up! Sorry Paulie
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Old 08-27-2009, 07:28 AM
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Originally Posted by pauld View Post
Can I get the set-up for my "Type PD"?
nah...just drive it
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Old 08-27-2009, 07:29 AM
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Originally Posted by andyh View Post
Remind me to get you the "Type R" spec parts for Saturday

just reminding ...and please the cnc ones ...thanks
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Old 08-27-2009, 07:40 AM
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Does anyone know if there is a One-way or spool in development for the HPI Cup Racer?

Sorry to interrupt this chat lounge with a question.
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Old 08-27-2009, 08:35 AM
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Originally Posted by HarryN View Post
Does anyone know if there is a One-way or spool in development for the HPI Cup Racer?

Sorry to interrupt this chat lounge with a question.
You could use the Pro4 spool if you just shim out the steel outdrives 1mm on each side. The PRo4 gear is a match for the CR
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Old 08-28-2009, 06:46 AM
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Thumbs up with proper equipment

Originally Posted by andyh View Post
We need to have those guys order more They had some when I initially checked
Thanks Andy
Attached Thumbnails HPI Cup Racer 1M-img_2066.jpg  
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Old 08-29-2009, 02:01 PM
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Originally Posted by MikeR View Post
You could use the Pro4 spool if you just shim out the steel outdrives 1mm on each side. The PRo4 gear is a match for the CR
FYI on Pro 4 Spool mod.

Also the slots on the diff is a tad undersized to fit the Cup Racer dogbone pins (need to file off .2-.3 mm or so). After doing so, you should also use anti wear grease (since the surface is no longer anodized).

I'm trying to get some Pro D (drift chassis from HPI Japan) to see if they would be a direct fit.

Also FYI the Hot Bodies D4 ball diff set is a perfect fit upgrade/replacement for the Cup Racer ball diff.

We are continuing to develop option parts and upgrades for the Cup Racer...stay tuned

Thanks,

AH
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Old 08-29-2009, 05:39 PM
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Default Andy, could you be a little more specific w/ the part no.?

Originally Posted by andyh View Post
FYI on Pro 4 Spool mod.

Also the slots on the diff is a tad undersized to fit the Cup Racer dogbone pins (need to file off .2-.3 mm or so). After doing so, you should also use anti wear grease (since the surface is no longer anodized).

I'm trying to get some Pro D (drift chassis from HPI Japan) to see if they would be a direct fit.

Also FYI the Hot Bodies D4 ball diff set is a perfect fit upgrade/replacement for the Cup Racer ball diff.

We are continuing to develop option parts and upgrades for the Cup Racer...stay tuned

Thanks,

AH
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Old 08-29-2009, 06:44 PM
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Default lighter diff gear?

Is there a lighter diff gear (plastic like the Pro4 gear) in the works? I've heard that the Pro4 gear works but it isn't supported by the center bearings as well as the stock metal diff gear.
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Old 08-30-2009, 01:10 AM
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Originally Posted by Manny View Post
Is there a lighter diff gear (plastic like the Pro4 gear) in the works? I've heard that the Pro4 gear works but it isn't supported by the center bearings as well as the stock metal diff gear.
I just installed it the Pro4 gear and front spool and it fits with minor grinding. Just grind on the inside of the spool where the dog bone sits and its good!
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Old 09-01-2009, 04:08 PM
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Originally Posted by 1555Racing View Post
Here are the part numbers for the Hot Bodies D4 WCE Diff
Currently there is not a complete set with a single part number
Also the diff below is made for the D4 WCE Offroad Race Buggy so a tad overkill for the Cup Racer. Although you will most likely never break a diff screw since it has the oversized diff screw and metal diff halves.

etc...




(working on more Cup Racer specific parts )

In the meantime for the ultimate super CR diff:

#61538 DIFFERENTIAL SCREW/HEAVY-DUTY NUT SET (2.6mm)
#61148 DIFF THRUST WASHER 2.8x5.8x1mm (2pcs)
#61149 DIFFERENTIAL THRUST BALL 1/16"
#B130 BALL BEARING 10x15x4mm (RUBBER SHIELD/2pcs)
#Z892 WASHER 10x12x0.2mm (10pcs)
#Z891 WASHER 10x12x0.1mm (COPPER/10pcs)
#61450 DIFFERENTIAL CUP JOINT SET
#A164 DIFFERENTIAL RING (13x19mm) (2 pcs)
#61433 BEVEL GEAR SET (39T/16T)
#A157 CARBIDE DIFFERENTIAL BALLS (3/32 ) 2.4mm (12 pcs)
#A165 SPRING 6x7x1.5mm (DIFFERENTIAL) BLACK (2 pcs)

Thanks,

AH

Last edited by andyh; 09-01-2009 at 04:31 PM.
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Old 09-01-2009, 04:21 PM
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Originally Posted by Manny View Post
Is there a lighter diff gear (plastic like the Pro4 gear) in the works? I've heard that the Pro4 gear works but it isn't supported by the center bearings as well as the stock metal diff gear.

A spacer is included w/ the PRO4 gear to fit the center bearings of the ball dif.
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