Savage XLTipsy - RCCanada - Canada Radio Controlled Hobby Forum
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Nitro, Gas, Lipo chat (RC Car & Truck) All things related to Nitro, Electric & Gas motors... Tuning, experiences, setups and more.

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Old 12-03-2009, 02:25 PM   #1
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Savage XLTipsy

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Is there anyway to help make this vehicle more stable?

Just always wants to ride on two wheels going round corners.

When it does, cant do much as the wheels that are lifted just spin.
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Old 12-07-2009, 09:57 AM   #2
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Hey white snake,

You can try lowering the centre of gravity either by limiting the shocks or moving the lower shock mounts closer to the wheel. Or conversely by moving the upper shock mounts closer to the inside. this may require a bit of custom fabrication on your part, and may take a few tries to get it right, but in the end it should reduce the problem you are experiencing.

As for the inside wheel spin while cornering, you can try using a thicker grease in the diff's or remove the grease and fill the diff's with heavy weight silicone (3000 or 5000 should help).
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Old 12-07-2009, 11:33 AM   #3
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Every RC car (buggy,truggy, MT) has enough setting options to increase its performance. There is no need to custom fabricate anything on your truck... Agreed lowering the truck with limiters inside the shocks will help stabilize corning but to have the truck more stable overall and during cornering has alot more involved then just lowering the truck with shock location. The inside wheel spin is happening because your have too much roll center!

Some of the things to look at will be your...

Roll center: (linkage to front casterblocks and rear hubs)
shortening the positions of the ballstuds little at a time to find the best setting. Shortening the roll center linkages will add stability during corning as it limits the body roll.

Caster angles (10*-20* etc.)
more caster angle stabilizes the truck during corning.

Damping: (weight of shock oil, amount of holes in piston and shock spring tension)
heavier oil and spring tension will increase stability but too much will lose traction.

use 1* toe-in on the front steering this will help stabilize the truck on straights and smoothen the truck during corning.

Ackerman: (steering linkage)
increasing the setting here will smooth out corning.

will improve corning, never have the chamber set on the positive, most neutral settings are -2*.

longer wheelbase will increase stability during corning.


Here is a few links to help you to understand "setup" on your RC cars... (website link) (downloadable PDF)

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