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Old 10-03-2016, 05:24 AM   #1171
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I guess Yokomo is working on new ball cups which the only reason I believe they are is their current ball cups (which are super nice and snug) can flex a tad to much in hot weather.
Are you having problems with all of the ball cups on the car flexing?

The only ones I've had problems with, are the front camber link ones. I just used a longer (rear) turnbuckle, which seems to have filled the threaded part out better.

Haven't had to swap one out since.
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Old 10-03-2016, 06:23 AM   #1172
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Are you having problems with all of the ball cups on the car flexing?

The only ones I've had problems with, are the front camber link ones. I just used a longer (rear) turnbuckle, which seems to have filled the threaded part out better.

Haven't had to swap one out since.
I havent had any issues with mine. I'm just swapping purely for Parts availability reasons. I have 3 other Associated cars and the Yokomo plastic end kit always seems to be out of stock at amain
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Old 10-03-2016, 03:04 PM   #1173
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I'm doing the swap this week. I'll post back with the sizes, but I believe the 8mm ones will cover most of the car
Coolio! I love the YOK ball ups as the are smooth, tight, strong etc. The only negative is the tend to lose rigidity in hot weather. You may want to wait as I have heard that YOK is working on new ball cups.
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Old 10-03-2016, 03:08 PM   #1174
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Originally Posted by John Myall View Post
Are you having problems with all of the ball cups on the car flexing?

The only ones I've had problems with, are the front camber link ones. I just used a longer (rear) turnbuckle, which seems to have filled the threaded part out better.

Haven't had to swap one out since.
Jonny that is a great idea. I actually did that with my SC6 in swapping the 52mm turnbuckles for 71mm SERP turnbuckles which worked great.
YOK is working on new ball cups thus I would imagine the are going to mimic the old ones being tight, smooth etc but improve the material so heat does not reduce rigidity.
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Old 10-04-2016, 06:38 AM   #1175
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Does the yz4 have a massive amount of bump steer? Mine does . I keep checking to see if I put something together wrong
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Old 10-04-2016, 07:23 AM   #1176
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It can if its not set up right, as with just about every vehicle can if its not set up right. Good news is you can easily erase the issue. Go to YZ4 set ups on Petit RC and compare your front set up with a few of the set ups. Also makes sure you have assembled your front end correctly. Check the caster blocks, Ackerman arms, center link and bell crank assembly. Droop, kick up, caster, and ride height play a role as well. Try 0mm outer hole on the front left and right inner camber blocks, 1mm spacer under ballstuds on the outer hole of your caster blocks and 3m spacer under your left and right Ackerman plates front hole thus the hole closer to the front a arms, 0 degree kick up inserts, 10 degree caster blocks.

You can also try 3mm outer hole left and right inner camber mounts, 0mm under caster block ballstuds located on the inner caster block holes, 1mm under ballstuds on front Ackerman plates, 0 degree kick up inserts and 15 degree caster blocks.

Actually tons on different combos on can use.
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Old 10-04-2016, 08:39 AM   #1177
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Anyone running 13.5 with theirs? If so can you please share your gearing info?
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Old 10-04-2016, 09:32 AM   #1178
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78t spur 29t pinion lands your FDR at 7.0. You may be able to make 78t 28t pinion work however I would use a Robinson pinion if you decide to purchase the 78 Robindon Spur.

80t/29

Recomended FDR per most 13.5 motors used in 10th scale wheelers is 7.0

To figure FDR take the spur divide by pinion, take that multiply by internal gear ratio being 2.6.
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Old 10-04-2016, 11:19 AM   #1179
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Anybody else ever bend a motor mount? Motor came loose and wrecked a spur gear, but I dont remember any big hits. When replacing the spur I noticed the motor isn't quite perpendicular to the center line on the car
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Old 10-04-2016, 12:20 PM   #1180
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Anybody else ever bend a motor mount? Motor came loose and wrecked a spur gear, but I dont remember any big hits. When replacing the spur I noticed the motor isn't quite perpendicular to the center line on the car
Yup, just bent mine last weekend. Fortunately it didn't chew the spur gear, or cause anything to bind. I was just looking over the car after the weekend race, and noticed mine was bent. I did have a couple of good front end smacks in which the A-arms broke, so I'm not overly surprised it's bent.

Isn't there an optional motor mount? I wonder if that is any stronger?
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Old 10-04-2016, 01:20 PM   #1181
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When securing the motor mount and layshaft bulkhead to the chassis screw in using the X pattern being 1,4 2,3. Do the same when securing the top deck to these parts. Also the optional chamfered motor mount and chamfered layshaft bulkhead have machined pockets, thus lots of right angles etc, which creates a much more rigid and stronger part as well as being lighter. When installed square the layshaft should have a little side to side movement.
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Old 10-05-2016, 01:58 PM   #1182
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Yup, just bent mine last weekend. Fortunately it didn't chew the spur gear, or cause anything to bind. I was just looking over the car after the weekend race, and noticed mine was bent. I did have a couple of good front end smacks in which the A-arms broke, so I'm not overly surprised it's bent.

Isn't there an optional motor mount? I wonder if that is any stronger?
Hello Brew,

Yes there is an optional motor mount bulkhead and layshaft bulkhead. They have machined out pockets which improves the strength and rigidity while being
Ight er that the kit pieces. The machined/chamfered edges looks great a well.

When installing or squaring up the motor mount and layshaft screw in using the cross pattern, thus 1/3 2/4 same when securing the top deck.
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Old 10-06-2016, 08:59 AM   #1183
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Which AE ball cups are people using? Part numbers would be awesome!
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Old 10-06-2016, 09:01 AM   #1184
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Which AE ball cups are people using? Part numbers would be awesome!
The b6 ones, just look it up dude.
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Old 10-06-2016, 11:01 AM   #1185
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Which AE ball cups are people using? Part numbers would be awesome!
ASC91722...You'll need the Balls too, they come in different lengths
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