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Old 04-30-2010, 09:50 AM   #1
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Default DARTY CAR????

what would make an onroad "darty" at high speeds....Im thinking a balance problem?? too much steering?
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Old 04-30-2010, 09:59 AM   #2
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Turn down the steering expo and check your toe-out/in.
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Old 04-30-2010, 10:32 AM   #3
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not sure what car it is but in general you could also try:

definitely try the expo and the toe first


More caster angle (higher number)
soften the front up (spring and/or oil)
Ackerman adjustment slow it down a little
longer camber links


These are a few that should help. You can probably just dial it out with the expo though.
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Old 04-30-2010, 10:58 AM   #4
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Do you race at FW on Sundays? what chassis and class?
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Old 04-30-2010, 11:00 AM   #5
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Depending on what radio you have you could also check the servo speed and adjust it to make servo reaction slower.
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Old 04-30-2010, 04:42 PM   #6
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Check that front turnbuckles are equal length.

Kills me every time.
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Old 04-30-2010, 04:52 PM   #7
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Yep. Equal length, check your toe in/out.
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Old 04-30-2010, 05:09 PM   #8
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where I do speed runs Im suspecting thiers little pebbles throwing the tires off and causing that darting thing otherwise 0 front toe except rear, the more I think about it didnt act this way on a prepared track
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Old 04-30-2010, 05:44 PM   #9
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not sure what darty is but...
I had a issue with Spectrum RX & nasty brand servos. Caused the car the
want get slight servo twitches at full speed. Servos were putting alot of hash/noise back into the RX
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Old 05-01-2010, 09:44 AM   #10
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Quote:
Originally Posted by 1101 View Post
not sure what darty is but...
I had a issue with Spectrum RX & nasty brand servos. Caused the car the
want get slight servo twitches at full speed. Servos were putting alot of hash/noise back into the RX
darty means when ya barley touch the steering the car jerks one way or the other, atleast in my case
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Old 05-01-2010, 03:26 PM   #11
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Quote:
Originally Posted by Lee_123 View Post
Check that front turnbuckles are equal length.

Kills me every time.
the toe turnbuckles should be equal length?? On may car, they are not, but i have the same degree of turning left and right, and my toe is even set even. the car just balances out with them uneven
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Old 05-02-2010, 07:31 PM   #12
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Quote:
Originally Posted by JKL1031 View Post
the toe turnbuckles should be equal length?? On may car, they are not, but i have the same degree of turning left and right, and my toe is even set even. the car just balances out with them uneven
Guess I should have stated on my car the servo saver is centered in the car (1/12th and 1/10th pan cars) and the turnbuckles do need to be equal length. You can compensate with the radio to get equal turn radius but at speed you can have problems.

Also, if you are running foam tires and true them yourself and have a different radius on the edges this can cause you some unpleasentness as well.
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