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Schumacher Cougar KR 1/10th Competition 2WD

Old 05-24-2014, 04:53 PM
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Mkae sure the 2 screws are always tight... you can run a longer screw than what the kit suggests. I only broke them on heavy impacts. Somethings got to break, better that than the chassis on other cars
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Old 05-26-2014, 06:26 AM
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Default Rear axles

I noticed that when using Avid wheels there is only a few threads of the axle sticking out. What's everybody doing to allow them to run Avid wheels. I hope they aren't chasing rear wheels all over the track.
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Old 05-26-2014, 06:28 AM
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Default Medium or hard arms

One thing I don't see on set ups is choice of arms, med or hard. What has been working best?
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Old 05-26-2014, 07:39 AM
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Originally Posted by Roken
I noticed that when using Avid wheels there is only a few threads of the axle sticking out. What's everybody doing to allow them to run Avid wheels. I hope they aren't chasing rear wheels all over the track.
As long as you use the serrated nuts... no problems
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Old 05-26-2014, 07:50 AM
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Thanks Tony! I see you been helping a lot of racers here. And a lot of LocTite.
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Old 05-26-2014, 07:53 AM
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Ive never had a problem... been using avid wheels since the release of the SVR... couple years ago. I see more 22s lose wheels than anything haha
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Old 05-27-2014, 03:38 PM
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what pinion should be used with a 83 tooth spur with a 17.5 ?
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Old 05-27-2014, 04:28 PM
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What tuning parts do you recommend out of the gate for the KR.
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Old 05-27-2014, 05:03 PM
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Originally Posted by thefnshow
what pinion should be used with a 83 tooth spur with a 17.5 ?
The kit 83 t spur I believe is for mod. You need something like a 72 t for stock 17.5. I haven't calculated the pinion for 17.5 and 72t yet. Most set ups I found are only for mod.
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Old 05-27-2014, 05:26 PM
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Originally Posted by thefnshow
what pinion should be used with a 83 tooth spur with a 17.5 ?
33/71 is where you need to start, then go up or down depending on where the timing sweet spot is.
With the stock 83 tooth spur, you can't get anywhere close to where you need to be for 17.5
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Old 05-27-2014, 05:28 PM
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Originally Posted by Roken
One thing I don't see on set ups is choice of arms, med or hard. What has been working best?
I never change the front arms, always run the hard ones, there much more predictable.

For the Rear,

Medium for low grip

Hard for medium to high grip
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Old 05-27-2014, 07:20 PM
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Anyone else run the Rcshox garo slipper disks? I love mine! Both KR and Aero.
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Old 05-27-2014, 11:02 PM
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Originally Posted by rippen
What tuning parts do you recommend out of the gate for the KR.
For me?
Ball Diff.
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Old 05-28-2014, 11:51 PM
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Originally Posted by rippen
What tuning parts do you recommend out of the gate for the KR.
Personally, I'd say extended chassis, emulsion shock caps, SVR wing mounts, and ball diff. A lot of other guys like the 5 deg front block with the lower front shock tower. I haven't tried that combo yet, but kit blocks and tower work great!
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Old 05-29-2014, 03:50 PM
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Originally Posted by rippen
What tuning parts do you recommend out of the gate for the KR.
If you decide to keep the gear diff I would recommend going with a heavier oil (depending on surface traction that is) I run on a medium traction surface and found the 2K oil to be to light. Recently switched to 10K and notice a big difference.

Bleeder shock caps are a must for me.

I also recommend the KF wing mounts. It raises the wing a bit and provides more protection to the rear shock tower/upper transmission housing.

I am going to try the +5 degree front yokes this coming weekend.

So far I have only had two parts break on my KR. First was the upper transmission housing. This was really wierd because I didn't have any bad crashes and it broke while running my second battery. I replaced them and everything has been fine since (I believe it may have been a bad batch from the factory).

The second part I had break was the front bulkhead where the front shock tower attaches. I noticed it broke after a few practice laps (with no crashes) but I did have a couple good tumbles prior to that. Again I replaced the part and haven't had any other issues and I have taken a couple big tumbles as I am pushing a little harder now.

Over all, it's a great buggy. Can't wait for them to release thier SC Truck.
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