32819toon

iTrader: (1)

Hi,

I've got a bit of a problem with my steering. I'm driving a Kyosho TF5 RTR car which I'm quite impressed with. The only thing is that I'm struggling to get enough turn in on sharp corners. Our track is very narrow and twisty and the only way I can get around some of our tracks is to go wide into the corners. I've tried the tyre/spring/tyre treatment/knuckle settings/bla de bla tuning but I'm still struggling getting enough turn in. Can someone help as I must be missing something.

Many thanks, and a very Merry Christmas to you all on RCTech.net

Regards,

32819toon

#88driver

To get the quickest, most aggresive steering, you are going to want your steering rods as straight as possible. Here is a link to a great website that can help you with this kind of stuff:
http://richardchang.com/hobby/rctips_tc_summary.pdf

32819toon

iTrader: (1)

Thanks for the website, I'll put a copy of that in my pitbox.

rsperson

This all really depends on the car. Touring/4-wheel drive/front driven wheels
With a 4 wheel drive vehicle - Ackerman is a very important tuning tool.

2 wheel drive and a live/solid rear axle - aka Pan Car. Whole different world.
I always believed that an undriven wheel - pan car - is adversely affected by ackerman - the less you have - the better the car handles.

But I invite discussion on the pan car -

mok

iTrader: (9)

re: ackerman

i agree with those comments..
and i think it applies to any direct drive chassis (eg. F103)

32819toon

iTrader: (1)

What effect does putting a shim under the ball joint have ?

picco007

iTrader: (99)

Well a buddy of mine can help answer that for sure but he told me to put a shim under the ball at the wheel to help take out bump steer. We a 12r5 with the servo flat. When we first put the car together the steering rods were higher at the servo having an angle to the wheel that was lower. Putting a shim under the ball at the wheel helped. He told me when the car was in the turn he feel like it hesitated or slowed down too much, by putting the shim under the ball it smoothed the car out in the turns making it easier to drive.

I hope this helps...maybe he'll come on and correct me if i got it wrong.

P2

iTrader: (15)

Picco007...you are right about the bump steer, but I think they are talking about turnbuckles font to back - I bet your buddy lapped you yesterday

In the 2nd post it says that the more straight/in-line the turnbuckles are, the greatest ackerman/steering. But reading my 008 manual it says that the more forward the angle, ie. adding shims under the servo saver ball studs, will give the most ackerman/steering in and out of corners.

Can someone clarify?

picco007

iTrader: (99)

oops my bad.

TryHard

iTrader: (4)

You'll find thats becuase the 008 has the links angled the other way to most, i.e. to make it straighter you need to remove shims. On the 416, it's the opposite (removing shims make it more angled).

The general though is, the straighter the link, the greater the ackerman effect.

HiH
Ed