16 replies to this topic

[Slotrodder]

I've determined that I tend to de-slot almost always in right handers, on exit. Can I add some weight to the chassis to get better balance? If so where?

[Eddie Fleming]

Is the car spinning out or just tilting out?

[Slotrodder]

It looks like it's tilting, or lofting out.

[Eddie Fleming]

Oh and what kind of car and chassis are we talking about. Flexi, Retro, or what? 

[blkdout76]

Possibly too much bite? So the car is actually lifting out of the slot, try different tire hardness.

[Dominator]

Place the bare chassis on a flat surface and look to see if the guide tongue is twisted.

[John Luongo]

Carefully observe how the car is reacting in the turn, let another driver try it while you watch. make sure everything is flat and aligned. Anything you can check or "tweak" to make it corner better rather than adding weight is good. On some oval tracks, we used to "tweak" the old Grp 10 chassis for left hand turns only.

 

Let us know what you discover and how you resolved this.

 

Best regards,

[Cheater]

It's an old guide, but if you've not downloaded the 'T-Flex Tome,' you should do so. There's a fair amount of info toward the end of the text regarding chassis tuning options.

 

T-Flex Tome

 

Download the PDF in the first post.

[Bill Seitz]

Usually when the car has an issue in one direction turn over the other, it's the result of a twisted chassis or something broken. If this is a Retro or any other type of chassis with solder joints, carefully inspect for broken solder joints. Tires that are too soft should effect both direction turns, but some corners place more load on the car so will tend to favor particular corners. Soft tires will usually grab and make the car hop/chatter leading up to the car de-slotting.

 

Tires need to have rounded edges. If the edge is sharply right angle (square), the edge will dig in as the car corners also causing hopping/chatter and de-slotting.

[Slotrodder]

It's a flexi chassis.

[Cheater]

Be more specific, please. What brand and model 'flexi'?

[team burrito]

First, make sure the chassis is flat. Next, lower the front end down as far as possible. You want a little bit of scum dragging on the chassis. If it pops out of the slot from the front, add some lead until it settles down.

[Slotrodder]

It is a 4.5 in. JK chassis

[Slotrodder]

My first attempt at a fix was to add a 12 gram carbide lathe insert to the frame behind the guide. That seemed to slow me down with no real handling improvement, in fact the super glue failed after several laps the insert fell out and speed picked up handling improved a little. De slot continued in the same right handers.

[Bill from NH]

Rubber cement is a better adhesive for chassis weights than is super glue. That's how we weighted wing cars with lead chassis weights. It dries flexible so you can easily move things around if needed.

[John Luongo]

i would place the bare chassis on a flat surface/tech block with just the front and rear axels in place. no wheels. check for flatness. then measure the height of the front and rear axels, left and right sides above the tech block. sometimes you can measure a difference in height when using the axels as opposed to just eye balling it. are you running the same size front tires? interesting problem.

[Slotrodder]

Thanks for the tip, it was definitely a Red Face moment when I picked up the car and the insert fell out!!