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Old 01-26-2008, 06:01 AM   #1
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Default How to fix understeer on a Jammin buggy??

Hey guys,

I was down at a indoor clay track. My Jammin buggy would not turn as sharp as my cousins POS buggy. It was making me quite angry..LOL. I was running some Pink tapers, same tires he was running...

What changes/adjustments can be made to add more steering to a buggy?

Thanks..
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Old 01-26-2008, 07:40 AM   #2
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what i did was run the front with the arms level and the rear slightly above level. i run 25th in the front and 20 wt in the rear. its been cold here. i also cut out the stoppers on the carriers in the front. but im going for my first run with the jammin pillowball upgrade this weekend so i will post back how it works out.
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Old 01-26-2008, 07:43 AM   #3
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i ran -2 degrees camber front and rear also if you look at the video i had on power push and alot of off power steering

http://www.youtube.com/watch?v=B1WCoRI6P4A
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Old 01-27-2008, 12:13 PM   #4
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Hi,

A quick and easy way to change the car balance is just to change the shocks positioning between front and rear.
This on top of the already mentioned adjustment (spring, camber, shock oil, ride height, tires, etc).
Also the car will be more agile if you shorten it's wheelbase.
Please note that each of the adjustment will have it's consequence.
Its a trade of => More steering, less rear end stability.

If the car is pushing, this means the rear end has more grip than the front.
Try to make the front suspension softer by positioning the front shocks more horizontal and make the rear stiffer by positioning it more vertical.
Or you can also try by putting a thinner stabilizer at the front, or even remove the stabilizer.

Good luck!!
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Old 01-27-2008, 10:26 PM   #5
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The setup sheets on the jammin website would also be a great basis for your initial setup.

http://www.jamminproducts.com/CRsetups/x1supCBv2.pdf
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Old 01-28-2008, 09:27 AM   #6
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What about changing the Ackermann? that is: connecting the steering rods in the front or back holes (sorry, I can never remember wich) of the steering bar?? Won't that give you more low speed steering also???
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Old 01-28-2008, 09:50 AM   #7
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Would HEAVY diff oil in the back make the buggy VERY responsive?

I was rotating the rear wheels in my cousins buggy. the rear wheels had alot more drag them the fronts..

Its backwards to what a normal setup is. It turned on a dime...... but the back end would come around real easy.
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Old 01-28-2008, 11:51 AM   #8
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CHEESECAKE: I found this on ofna forums.

Quote: Originally Posted by indica

moving to the rear hole will provide more of an ackerman effect (ie - the inside wheel will turn farther than the outside at full throw). This helps a bit with tight technical tracks as you get a little more twitchy steering response. (OFNA: more agressive steering entering the curve)

The front hole will provide the least amount, good for open large sweeping tracks. (OFNA: less agressive steering antering the curve and more as you exit)

The middle hole is right in-between....
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Last edited by DR ZAIRUS; 02-14-2008 at 03:30 AM.
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