Lunchbox Steeringproblem

[Chamade]

I just bought an old Lunchbox. The problem is that when i turn left, the right wheel turns very litle, and vise versa. What is the correct setup for the stearing? I am quite shore that the servo is on its right place. Please help me.

[Shodog]

you can increase the servo throw by having the steering rods in the further most hole away from the center screw on the servo saver

[secretasianman]

There's a couple things to check,

For starters, check the front suspension for bindings. make sure the steering blocks and tie rods don't hit anything on their way to full lock.

Also, the servo may not be centered. Center the trim and reposition the servo horn so that it's perpendicular to the servo body. You may need to adjust the lengths of the tie rods/drag links afterward. to straighten up the steering again. Also, while the servo horn is off and the trim lever is centered, It's a good idea to verify the servo turns an equal amount in each direction when controlled by the transmitter.

Finally, if your transmitter has advanced features like epa that limits the servo travel, reset those adjustments to maximum to alow full throw. If your transmitter only has trim levers, then the default behavior is to turn the servo to the maximum allowed.

EDIT: For the record, what is defined as "very little?" Typically the outer wheel turns 'slightly' less than the inner wheel. are you able to provide pictures of what you're experiencing?

[007al]

Are the wheels set with toe out?(does the front of the tyre point out when the servo is centered).This would cause the outside wheel to turn little.

Unless you`re not getting a big enough turning circle,i wouldnt worry too much.

Read this http://auto.howstuffworks.com/steering1.htm

[Chamade]

I know how steering should work.. Should have mentioned that i have everything in its right place. Servo is centered, the wheels are a bit toe in, the rods are in their outer moust place. But still, it turns like a tectonic plate. So whats wrong?? I dont have a manual since i bought i used.

[bigoggy]

lunchboxes dont have much stearing as it is. you got any pictures so we can see how much it is turning?

[terry.sc]

But still, it turns like a tectonic plate. So whats wrong?? I dont have a manual since i bought i used.

Sounds like nothings wrong, that's a Lunchbox for you. let off the power and it will steer quite well at slow speeds, at high speeds it just doesn't steer unless you put the brakes on, then it will fall over

Remember it's a fun stunt truck, it isn't designed for great handling.

If you need a manual download one here

[DudeWalker]

Due to the extreme camber of the front wheels, it LOOKS like the steering throw is inadequate. Put her down and drive it, and you'll see she turns just fine. Well, off throttle anyway.

[ADRay]

believe it or not, and i don't remember why i did this (maybe a busted servo horn) but i put a stock M03 servo horn on my lunchbox, and without any serious modification, it made the thing steer tighter. anyone that might have one laying around should try it.

[mymonsterbeetleisbroken]

believe it or not, and i don't remember why i did this (maybe a busted servo horn) but i put a stock M03 servo horn on my lunchbox, and without any serious modification, it made the thing steer tighter. anyone that might have one laying around should try it.

Thats a good idea!

Though I'm just about to put a mamba sidewinder brushless motor in mine - it will never steer again

[markbt73]

Though I'm just about to put a mamba sidewinder brushless motor in mine - it will never steer again

You'll post a video, right? This I gotta see...

[calvinhwang]

I had the same problem.

it just that lunch box is intended to do wheelies, not really made for great steering.

also, the friction shock it uses moves the weight of the vehicle. I was to thinking to add some CVA shocks for better handling.

I hope that helps.

[markbt73]

Oh dear, I've just had an idea.

I wonder if you could rig up "steering brakes" to a Lunchbox, like a full-size dune buggy has, to slow down one rear wheel when turning, to slide the rear end around? Have to think about that a bit, but I'll bet it could be done...

[glancyguy]

Interesting thread.

I just bought a Lunch Box re-release and I noticed the following:

The front tires are not flat on the ground. The outside edges of the front tires touch the ground while the inside edges are off the ground a 1/4 inch (kinda like a runner with badly pronated feet). When I push the front shocks down 1/4 inch, the front tires touch the ground. Is this normal or have I screwed something up?

[Saito]

That's totally normal for a Lunch Box front end. If you want, you can add some rubber tubing to the top of the shock rods to lower the front a bit and level out the front tires. I improves handling a little bit by allowing more of the tire to contact the ground and improve grip.

[glancyguy]

That's totally normal for a Lunch Box front end. If you want, you can add some rubber tubing to the top of the shock rods to lower the front a bit and level out the front tires. I improves handling a little bit by allowing more of the tire to contact the ground and improve grip.

Great! Thanks. I was contemplating this. It has taken me almost 6 runs of my Box to really learn how to handle it.