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Old 09-06-2004, 02:07 PM   #766
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this is a WILD stab

After balancing out the STR4 Pro, there needs to be about 20 to 30 grammes of weight put onto the left hand side of the car, to make it balance, so im a neutral attitude, the right side should roll downwards.

At a guess, you may be using a high torque motor, that, when you tap the brakes, it brings the transmission to a dead stop very quickly, and, still guessing, the way of the motors inertia , it wants to roll the car left, and with the wheels stopping, wants to pitch the car forward, hence the left nose down attitude??
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Old 09-06-2004, 02:49 PM   #767
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tame down your brake end point a little bit, or just tap it in the air, try not hitting the brakes full throw.
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Old 09-08-2004, 05:16 AM   #768
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Hi. I was thinking of getting this car. But where can I find it online?

Thanks
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Old 09-08-2004, 05:52 AM   #769
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The best place to order it online is ultimatehobbies. Give them a call as they still don't have it listed on there site but they do have it in stock and have spare parts there too.

When you call, ask them if they also carry parts for the STR4-Pro sedan. I may run this in the winter.

I believe the buggy still sells for $145 and they have free shipping going on with orders over $50 still.

The things I would pickup to get the buggy more race oriented are:

1. Ball bearings for the wheels
2. Better shocks ( AE B4 shocks or Losi XXX, kprc on ebay sells these pretty cheap brand new )
3. Titanium turnbuckles ( B3 kit will work )

you may also want to contact Tim at MRC and see if they are still having missing linkages problems and he can get you the steering linkage ( not sure if anyone has gotten that ) between the servo and the steering arms in. Others were missing some ball cups. I run RPMs so it was no big deal to me.

One other thing, before assembling your tires, feel the tire and the foam and see if that feels still enough. For me and others the foams didn't feel like a good match for the tires but others recently have liked them. The tires are pretty nice and I would use them if I had the track conditions for them.
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Last edited by Cain; 09-08-2004 at 05:57 AM.
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Old 09-08-2004, 07:35 AM   #770
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thanks for the tip Cain...I will do that
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Old 09-08-2004, 10:26 AM   #771
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no problem. Any more questions feel free to ask. There are a good amount of knowledgeable people who frequent this board and can help also.

How is the racing by you for 4wd?
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Old 09-08-2004, 10:44 AM   #772
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Quote:
Originally posted by Cain
no problem. Any more questions feel free to ask. There are a good amount of knowledgeable people who frequent this board and can help also.

How is the racing by you for 4wd?
Cool.

Actually, I am new in Portland having just moved here, so I have no first hand experience with the local 4wd scene.

The "off road season" around here is mainly in the Fall/Winter. I asked around and there does seem to be strong support for 4wd offroad. No problems making a class for club races.
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Old 09-08-2004, 11:00 PM   #773
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Doc & Cookie monster thanks for the tips, yes I am running a hot motor (13X2 V2 orion) and have been told I have my brakes way to touchy. That will be my first change. If that doesnt help, I will put the car on a set up board and check the weight bias left to right and adjust as needed. Never had to do that on an offroad car though. BTW...did check my shock settings, they are all in sync & even.
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Old 09-09-2004, 01:22 AM   #774
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JK, thats the only thing I Can think of that would cause it, try around 30g on the left side to balance out the cells.
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Old 09-09-2004, 09:05 PM   #775
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On the left side?? That is the side that is twist/torquing/pitching down the most. I know the front is to pitch down on braking, but not a sideways twist. I may have a chance the weekend to test the softening of the brakes, and see if that helps.
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Old 09-10-2004, 04:07 AM   #776
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that twist is due to the torwue of the motor stopping, the weights are there to balance left to right.
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Old 09-10-2004, 06:52 AM   #777
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I run my brakes pretty soft, that is probably why I haven't experienced the drop to one side.
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Old 09-10-2004, 07:32 AM   #778
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I probably wont be able to test it this weekend, I have to golf with the VP saturday afternoon, making sunday an all day family day. Maybe I can test it next weekend. Thanks for the help guys.
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Old 09-10-2004, 09:24 AM   #779
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JK Racing - I ran my brakes very aggressive when I had the front diff in the car. I would attribute the torque steer in the air more to a suspension bind of some sort, rather than the rotation of the motor. I would go through the car, take all the shocks off and check to see if you have any type of binding in any of the arms/hubs. I had to open up the hole in the front hub just a bit to get the free suspension action that I was looking for. Also check to make sure that your shocks aren't binding, you have the same pistons/oil in the shocks, etc....
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Old 09-10-2004, 11:17 AM   #780
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Chris: Do you guys at Ultimate hobbies have any of the front oneway parts in stock?
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